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( May 20, 2020 ) HTCondor 8.9.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.7. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.9 stable release. Enhancements in the release include: Multiple enhancements in the file transfer code; Support for more regions in s3:// URLs; Much more flexible job router language; Jobs may now specify cuda_version to match equally-capable GPUs; TOKENS are now called IDTOKENS to differentiate from SCITOKENS; Added the ability to blacklist TOKENS via an expression; Can simultaneously handle Kerberos and OAUTH credentials; The getenv submit command now supports a blacklist and whitelist; The startd supports a remote history query similar to the schedd; condor_q -submitters now works with accounting groups; Fixed a bug reading service account credentials for Google Compute Engine. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.7 binaries and source code are available from our Downloads page.

( May 7, 2020 ) HTCondor 8.8.9 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.9. A stable series release contains significant bug fixes. Highlights of this release are: Proper tracking of maximum memory used by Docker universe jobs Fixed preempting a GPU slot for a GPU job when all GPUs are in use; Fixed a Python crash when queue_item_data iterator raises an exception; Fixed a bug where slot attribute overrides were ignored; Calculates accounting group quota correctly when more than 1 CPU requested; Updated HTCondor Annex to accommodate API change for AWS Spot Fleet; Fixed a problem where HTCondor would not start on AWS Fargate; Fixed where the collector could wait forever for a partial message; Fixed streaming output to large files (>2Gb) when using the 32-bit shadow. More details about the fixes can be found in the Version History. HTCondor 8.8.9 binaries and source code are available from our Downloads page.

( April 7, 2020 ) HTCondor Security Release: 8.8.8 and 8.9.6
The HTCondor team is pleased to announce the release of HTCondor 8.8.8 and HTCondor 8.9.6. These releases contain important fixes for security issues. Affected users should update as soon as possible. More details on the security issues are in the Vulnerability Reports: HTCondor binaries and source code are available from our Downloads page.

( February 25, 2020 ) Re-release of 8.9.5 deb Packages for Debian and Ubuntu
The HTCondor team is re-releasing the HTCondor 8.9.5 deb packages for Debian and Ubuntu. An error caused the Python bindings to be placed in the wrong directory, rendering them nonfunctional.

(February 13, 2020) One HTCondor pool delivers over an ExaFLOP hour cost-effectively for IceCube
The article "A cost effective ExaFLOP hour in the Clouds for IceCube" discusses how an existing HTCondor pool was augmented with resources dynamically acquired from AWS, Azure, Google, Open Science Grid, and on-prem resources to perform science for the IceCube project. The objective, on top of (obviously) the science output, was to demonstrate how much compute can someone integrate during a regular working day, using only the two most cost effective SKUs for each Cloud provider.

(February 13, 2020) Univ of Manchester dynamically grows HTCondor in to Amazon cloud
A recently posted article at Amazon explains how the Univ of Manchester dynamically grows the size of their HTCondor pool with resources from AWS by using the HTCondor Annex tool.

(February 13, 2020) HTCondor Week 2020 Registration Open
We invite HTCondor users, administrators, and developers to HTCondor Week 2020, our annual HTCondor user conference, May 19-20, 2020. This will be a free, online event.

( January 9, 2020 ) HTCondor-CE 4.1.0 released!
The HTCondor team is pleased to announce the release of HTCondor-CE 4.1.0. HTCondor-CE is a grid gateway that forwards resource provisioning requests to your local cluster. HTCondor-CE was originally developed by the Open Science Grid (OSG). The Center for High-Throughput Computing (CHTC) now distributes and supports HTCondor-CE for use outside of the OSG. Highlights of this release are: Added the ability to configure the environment of routed jobs; Simplified APEL configuration; Fixed the ability to specify certificate locations for SSL authentication; Refined the APEL record filter to ignore jobs that have not yet started; Fixed an issue where "condor_ce_q" required authentication; Re-enabled the ability for local users to submit jobs to the CE queue; Fixed an issue where some jobs were capped at 72 mins instead of 72 hrs; Improved BDII provider error handling. A complete list of new features and fixed bugs can be found in the version history. HTCondor-CE 4.1.0 binaries are available from our YUM Repository.

( January 9, 2020 ) HTCondor-CE 3.4.0 released!
The HTCondor team is pleased to announce the release of HTCondor-CE 3.4.0. HTCondor-CE is a grid gateway that forwards resource provisioning requests to your local cluster. HTCondor-CE was originally developed by the Open Science Grid (OSG). The Center for High-Throughput Computing (CHTC) now distributes and supports HTCondor-CE for use outside of the OSG. Highlights of this release are: Added the ability to configure the environment of routed jobs; Simplified APEL configuration; Refined the APEL record filter to ignore jobs that have not yet started; Improved BDII provider error handling. A complete list of new features and fixed bugs can be found in the version history. HTCondor-CE 3.4.0 binaries are available from our YUM Repository.

( January 2, 2020 ) HTCondor 8.9.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.5. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.7 stable release. Enhancements in the release include: Added a new mode that skips jobs whose outputs are newer than their inputs; Added command line tool to help debug ClassAd expressions; Added port forwarding to Docker containers; You may now change some DAGMan throttles while the DAG is running; Added support for session tokens for pre-signed S3 URLs; Improved the speed of the negotiator when custom resources are defined; Fixed interactive submission of Docker jobs; Fixed a bug where jobs would not be killed when getting an OOM notification. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.5 binaries and source code are available from our Downloads page.

( December 26, 2019 ) HTCondor 8.8.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.7. A stable series release contains significant bug fixes. Highlights of this release are: Updated condor_annex to work with upcoming AWS Lambda function changes; Added the ability to specify the order that job routes are applied; Fixed a bug that could cause remote condor submits to fail; Fixed condor_wait to work when the job event log is on AFS; Fixed RPM packaging to be able to install condor-all on CentOS 8; Period ('.') is allowed again in DAGMan node names. More details about the fixes can be found in the Version History. HTCondor 8.8.7 binaries and source code are available from our Downloads page.

(December 6, 2019) Using 50k GPUs in one HTCondor cloud-based pool
Read about how at SC19 UCSD got over 50k GPUs from the three largest Cloud providers, and integrated them in a single a HTCondor pool to run production science jobs. At peak, this cloud-based dynamic HTCondor cluster provided more than 90% of the performance of the #1 TOP100 HPC supercomputer.

( November 19, 2019 ) HTCondor 8.9.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.4. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.6 stable release. Enhancements in the release include: Amazon S3 file transfers using pre-signed URLs; Further reductions in DAGMan memory usage; Added -idle option to condor_q to display information about idle jobs; Support for SciTokens authentication; A tool, condor_evicted_files, to examine the SPOOL of an idle job. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.4 binaries and source code are available from our Downloads page.

( November 13, 2019 ) HTCondor 8.8.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.6. A stable series release contains significant bug fixes. Highlights of this release are: Initial support for CentOS 8; Fixed a memory leak in SSL authentication; Fixed a bug where "condor_submit -spool" would only submit the first job; Reduced encrypted file transfer CPU usage by a factor of six; "condor_config_val -summary" displays changes from a default configuration; Improved the ClassAd documentation, added many functions that were omitted. More details about the fixes can be found in the Version History. HTCondor 8.8.6 binaries and source code are available from our Downloads page.

( November 7, 2019 ) HTCondor-CE 4.0.1 released!
The HTCondor team is pleased to announce the release of HTCondor-CE 4.0.1. HTCondor-CE is a gateway for grid jobs to be run on your local resources. HTCondor-CE was originally developed by the Open Science Grid (OSG). The Center for High-Throughput Computing (CHTC) now distributes and supports HTCondor-CE for use outside of the OSG. SciTokens are supported if using a recent version of HTCondor compiled with SciTokens. A complete list of new features and fixed bugs can be found in the version history. HTCondor-CE 4.0.1 binaries are available from our YUM Repository.

( September 17, 2019 ) HTCondor 8.9.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.3. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.5 stable release. Enhancements in the release include: TOKEN and SSL authentication methods are now enabled by default; The job and global event logs use ISO 8601 formatted dates by default; Added Google Drive multifile transfer plugin; Added upload capability to Box multifile transfer plugin; Added Python bindings to submit a DAG; Python 'JobEventLog' can be pickled to facilitate intermittent readers; 2x matchmaking speed for partitionable slots with simple START expressions; Improved the performance of the condor_schedd under heavy load; Reduced the memory footprint of condor_dagman; Initial implementation to record the circumstances of a job's termination. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.3 binaries and source code are available from our Downloads page.

( September 4, 2019 ) HTCondor 8.8.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.5. A stable series release contains significant bug fixes. Highlights of this release are: Fixed two performance problems on Windows; Fixed Java universe on Debian and Ubuntu systems; Added two knobs to improve performance on large scale pools; Fixed a bug where requesting zero GPUs would require a machine with GPUs; HTCondor can now recognize nVidia Volta and Turing GPUs. More details about the fixes can be found in the Version History. HTCondor 8.8.5 binaries and source code are available from our Downloads page.

( July 9, 2019 ) HTCondor 8.8.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.4. A stable series release contains significant bug fixes. Highlights of this release are: Python 3 bindings - see version history for details (requires EPEL on EL7); Can configure DAGMan to dramatically reduce memory usage on some DAGs; Improved scalability when using the python bindings to qedit jobs; Fixed infrequent schedd crashes when removing scheduler universe jobs; The condor_master creates run and lock directories when systemd doesn't; The condor daemon obituary email now contains the last 200 lines of log. More details about the fixes can be found in the Version History. HTCondor 8.8.4 binaries and source code are available from our Downloads page.

( June 4, 2019 ) HTCondor 8.9.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.2. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.3 stable release. Enhancements in the release include: The HTTP/HTTPS file transfer plugin will timeout and retry transfers; A new multi-file box.com file transfer plugin to download files; The manual has been moved to Read the Docs; Configuration options for job-log time-stamps (UTC, ISO 8601, sub-second); Several improvements to SSL authentication; New TOKEN authentication method enables fine-grained authorization control. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.2 binaries and source code are available from our Downloads page.

( May 28, 2019 ) HTCondor 8.8.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.3. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a bug where jobs were killed instead of peacefully shutting down; Fixed a bug where a restarted schedd wouldn't connect to its running jobs; Improved file transfer performance when sending multiple files; Fix a bug that prevented interactive submit from working with Singularity; Orphaned Docker containers are now cleaned up on execute nodes; Restored a deprecated Python interface that is used to read the event log. More details about the fixes can be found in the Version History. HTCondor 8.8.3 binaries and source code are available from our Downloads page.

( April 17, 2019 ) HTCondor 8.9.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.1. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.2 stable release. Enhancements in the release include: An efficient curl plugin that supports uploads and authentication tokens; HTCondor automatically supports GPU jobs in Docker and Singularity; File transfer times are now recorded in the user job log and the job ad. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.1 binaries and source code are available from our Downloads page.

( April 11, 2019 ) HTCondor 8.8.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.2. A stable series release contains significant bug fixes. Highlights of this release are: Fixed problems with condor_ssh_to_job and Singularity jobs; Fixed a problem that could cause condor_annex to crash; Fixed a problem where the job queue would very rarely be corrupted; condor_userprio can report concurrency limits again; Fixed the GPU discovery and monitoring code to map GPUs in the same way; Made the CHIRP_DELAYED_UPDATE_PREFIX configuration knob work again; Fixed restarting HTCondor from the Service Control Manager on Windows; Fixed a problem where local universe jobs could not use condor_submit; Restored a deprecated Python interface that is used to read the event log; Fixed a problem where condor_shadow reuse could confuse DAGMan. More details about the fixes can be found in the Version History. HTCondor 8.8.2 binaries and source code are available from our Downloads page.

( February 28, 2019 ) HTCondor 8.9.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.9.0. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.8.1 stable release. Enhancements in the release include: Absent any configuration, HTCondor denies authorization to all users; All HTCondor daemons under a condor_master share a security session; Scheduler Universe jobs are prioritized by job priority. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.9.0 binaries and source code are available from our Downloads page.

( February 21, 2019 ) HTCondor CREAM-CE Support
The CREAM working group has recently announced official support for the CREAM-CE will cease in December 2020. We are soliciting feedback on the HTCondor and Open Science Grid (OSG) transition plan. Please see this post to the htcondor-users email list for more information, and please email any concerns to htcondor-admin@cs.wisc.edu and/or help@opensciencegrid.org.

( February 19, 2019 ) HTCondor 8.8.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.1. A stable series release contains significant bug fixes. Highlights of this release are: Fixed excessive CPU consumption with GPU monitoring; GPU monitoring is off by default; enable with "use feature: GPUsMonitor"; HTCondor now works with the new CUDA version 10 libraries; Fixed a bug where sometimes jobs would not start on a Windows execute node; Fixed a bug that could cause DAGman to go into an infinite loop on exit; The JobRouter doesn't forward the USER attribute between two UID Domains; Made Collector.locateAll() more efficient in the Python bindings; Improved efficiency of the negotiation code in the condor_schedd. More details about the fixes can be found in the Version History. HTCondor 8.8.1 binaries and source code are available from our Downloads page.

( January 3, 2019 ) HTCondor 8.8.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.8.0. After a year and a half of development, this is the first release of the new stable series. Highlights of this release are: Automatically add AWS resources to your pool using HTCondor Annex; The Python bindings now include submit functionality; Added the ability to run a job immediately by replacing a running job; A new mini(ht)condor package makes single node installations easy; HTCondor now tracks and reports GPU utilization; Several performance enhancements in the collector; The grid universe can create and manage VM instances in Microsoft Azure; The MUNGE security method is now supported on all Linux platforms. More details about the new features can be found in the Upgrade Section. A few bugs and memory leaks were fixed during our stabilization effort. More details about the fixes can be found in the Version History. HTCondor 8.8.0 binaries and source code are available from our Downloads page.

( October 31, 2018 ) HTCondor 8.7.10 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.10. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.13 stable release. Enhancements in the release include: Can now interactively submit Docker jobs; The administrator can now add arguments to the Singularity command line; The MUNGE security method is now supported on all Linux platforms; The grid universe can create and manage VM instances in Microsoft Azure; Added a single-node package to facilitate using a personal HTCondor. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.10 binaries and source code are available from our Downloads page.

( October 31, 2018 ) HTCondor 8.6.13 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.13. A stable series release contains significant bug fixes. Highlights of this release are: Made the Python 'in' operator case-insensitive for ClassAd attributes; Python bindings are now built for the Debian and Ubuntu platforms; Fixed a memory leak in the Python bindings; Fixed a bug where absolute paths failed for output/error files on Windows; Fixed a bug using Condor-C to run Condor-C jobs; Fixed a bug where Singularity could not be used if Docker was not present. More details about the fixes can be found in the Version History. HTCondor 8.6.13 binaries and source code are available from our Downloads page.

( August 1, 2018 ) HTCondor 8.7.9 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.9. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.12 stable release. Enhancements in the release include: Support for Debian 9, Ubuntu 16, and Ubuntu 18; Improved Python bindings to support the full range of submit functionality; Allows VMs to shutdown when the job is being gracefully evicted; Can now specify a host name alias (CNAME) for NETWORK_HOSTNAME; Added the ability to run a job immediately by replacing a running job. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.9 binaries and source code are available from our Downloads page.

( August 1, 2018 ) HTCondor 8.6.12 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.12. A stable series release contains significant bug fixes. Highlights of this release are: Support for Debian 9, Ubuntu 16, and Ubuntu 18; Fixed a memory leak that occurred when SSL authentication fails; Fixed a bug where invalid transform REQUIREMENTS caused a Job to match; Fixed a bug to allow a queue super user to edit protected attributes; Fixed a problem setting the job environment in the Singularity container; Fixed several other minor problems. More details about the fixes can be found in the Version History. HTCondor 8.6.12 binaries and source code are available from our Downloads page.

( July 16, 2018 ) Register soon for the 2018 European HTCondor workshop!
The 2018 European HTCondor Workshop will be held Tuesday Sept 4 through Friday Sept 7, 2018, at the Rutherford Appleton Laboratory in Oxfordshire, UK. This is a chance to find out more about HTCondor from the developers, and also to provide feedback and learn from other HTCondor users. Participation is open to all organizations and persons interested in HTCondor.

The registration deadline is Tuesday 21 Aug -- register here (this web site also has much more information about the conference). You will receive a discount if you register by July 31.

If you're planning to attend, please consider speaking -- we'd like to hear about your project and how you are using HTCondor. Abstracts are accepted via the conference page linked above; follow the "Call for Abstracts" link and select "Submit new abstract".

( May 16, 2018 ) HTCondor powers Marshfield Clinic project on disease genetics
This aritcle describes how HTCondor delivered more than 9 million CPU hours to help understand the genetics of human disease.

( May 10, 2018 ) HTCondor 8.7.8 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.8. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.11 stable release. Enhancements in the release include: The condor annex can easily use multiple regions simultaneously; HTCondor now uses CUDA_VISIBLE_DEVICES to tell which GPU devices to manage; HTCondor now reports GPU memory utilization. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.8 binaries and source code are available from our Downloads page.

( May 10, 2018 ) HTCondor 8.6.11 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.11. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a problem where condor_preen would crash on an active submit node; Improved systemd configuration to clean up processes if the master crashes; Fixed several other minor problems. More details about the fixes can be found in the Version History. HTCondor 8.6.11 binaries and source code are available from our Downloads page.

( March 13, 2018 ) HTCondor 8.7.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.7. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.10 stable release. Enhancements in the release include: condor_ssh_to_job now works with Docker Universe jobs; A 32-bit condor_shadow is available for Enterprise Linux 7 systems; Tracks and reports custom resources, e.g. GPUs, in the job ad and user log; condor_q -unmatchable reports jobs that will not match any slots; Several updates to the parallel universe; Spaces are now allowed in input, output, and error paths in submit files; In DAG files, spaces are now allowed in submit file paths. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.7 binaries and source code are available from our Downloads page.

( March 13, 2018 ) HTCondor 8.6.10 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.10. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a problem where condor_preen would crash on an active submit node; Improved systemd configuration to clean up processes if the master crashes; Fixed several other minor problems. More details about the fixes can be found in the Version History. HTCondor 8.6.10 binaries and source code are available from our Downloads page.

(February 28, 2018 ) HTCondor Week 2018 Registration Open

We invite HTCondor users, administrators, and developers to HTCondor Week 2018, our annual HTCondor user conference, in beautiful Madison, Wisconsin, May 21-24, 2018. HTCondor Week features tutorials and talks from HTCondor developers, administrators, and users. It also provides an opportunity for one-on-one or small group collaborations throughout the week. In addition, the HEPiX Spring 2018 Workshop will also take place in Madison the preceding week.

( January 4, 2018 ) HTCondor 8.7.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.6. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.9 stable release. Enhancements in the release include: Machines won't enter "Owner" state unless using the Desktop policy; One can use SCHEDD and JOB instead of MY and TARGET in SUBMIT_REQUIREMENTS; HTCondor now reports all submit warnings, not just the first one; DAGMan now updates the schedd periodically instead of every state change; The HTCondor Python bindings in pip are now built from the release branch. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.6 binaries and source code are available from our Downloads page.

( January 4, 2018 ) HTCondor 8.6.9 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.9. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a bug where some Accounting Groups could get too much surplus quota; Fixed a Python binding bug where some queries could corrupt memory; Fixed a problem where preen could block the schedd for a long time; Fixed a bug in Windows where the job sandbox would not be cleaned up; Fixed problems with the interaction between the master and systemd; Fixed a bug where MAX_JOBS_SUBMITTED could be permanently reduced; Fixed problems with very large disk requests. More details about the fixes can be found in the Version History. HTCondor 8.6.9 binaries and source code are available from our Downloads page.

( November 14, 2017 ) HTCondor Security Release: 8.6.8 and 8.7.5
The HTCondor team is pleased to announce the release of HTCondor 8.6.8 and HTCondor 8.7.5. These releases contain an important fix for a security issue. Affected users should update as soon as possible. More details on the security issue are in the Vulnerability Report HTCondor binaries and source code are available from our Downloads page.

( October 31, 2017 ) HTCondor 8.7.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.4. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.7 stable release. Enhancements in the release include: Improvements to DAGMan including support for late job materialization; Updates to condor_annex including improved status reporting; When submitting jobs, HTCondor can now warn about job requirements; Fixed a bug where remote CPU time was not recorded in the history; Improved support for OpenMPI jobs; The high availability daemon now works with IPV6 and shared_port; The HTCondor Python bindings are now available for Python 2 and 3 in pip. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.4 binaries and source code are available from our Downloads page.

( October 31, 2017 ) HTCondor 8.6.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.7. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a bug where memory limits might not be updated in cgroups; Add SELinux type enforcement rules to allow condor_ssh_to_job to work; Updated systemd configuration to shutdown HTCondor in an orderly fashion; The curl_plugin utility can now do HTTPS transfers; Specifying environment variables now works with the Python Submit class. More details about the fixes can be found in the Version History. HTCondor 8.6.7 binaries and source code are available from our Downloads page.

( October 30, 2017 ) NCSA calls on HTCondor partnership to process data for the Dark Energy Survey
HPCWire recently published an aritcle on how HTCondor enables NCSA to take raw data from the Dark Energy camera telescope and process and disseminate the results within hours of observations occurring.

( October 5, 2017 ) HTCondor role in Nobel-winning gravitational wave discovery
The Laser Interferometer Gravitational-Wave Observatory (LIGO) unlocked the final door to Albert Einstein's Theory of Relativity, winning the Nobel prize this week and proving that gravitational waves produce ripples through space and time. Since 2004, HTCondor has been a core part of the data analysis effort. See this recent article , as well as this one, for more details.

( September 12, 2017 ) HTCondor 8.7.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.3. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.6 stable release. Enhancements in the release include: Further updates to the late job materialization technology preview; An improved condor_top tool; Enhanced the AUTO setting for ENABLE_IPV{4,6} to be more selective; Fixed several small memory leaks. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.3 binaries and source code are available from our Downloads page.

( September 12, 2017 ) HTCondor 8.6.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.6. A stable series release contains significant bug fixes. Highlights of this release are: HTCondor daemons no longer crash on reconfig if syslog is used for logging; HTCondor daemons now reliably leave a core file when killed by a signal; Negotiator won't match machines with incompatible IPv{4,6} protocol; On Ubuntu, send systemd alive messages to avoid restarting HTCondor; Fixed a problem parsing old ClassAd string escapes in the python bindings; Properly parse CPU time for Slurm grid universe jobs; Claims are released when parallel univ jobs are removed while claiming; Starter won't get stuck when a job is removed with JOB_EXIT_HOOK defined; To reduce audit logging, added cgroup rules to SELinux profile. More details about the fixes can be found in the Version History. HTCondor 8.6.6 binaries and source code are available from our Downloads page.

( August 10, 2017 ) Intel and Broad Institute identify HTCondor for Genomics Research
Researchers and software engineers at the Intel-Broad Center for Genomic Data Engineering build, optimize, and widely share new tools and infrastructure that will help scientists integrate and process genomic data. The project is optimizing best practices in hardware and software for genome analytics to make it possible to combine and use research data sets that reside on private, public, and hybrid clouds, and have recently identified HTCondor on their web site as an open source framework well suited for genomics analytics.

( August 7, 2017 ) Updated EL7 RPMs for HTCondor 8.4.12, 8.6.5, and 8.7.2
The HTCondor team has released updated RPMs for HTCondor versions 8.4.12, 8.6.5, and 8.7.2 running on Enterprise Linux 7. In the recent Red Hat 7.4 release, the updated SELinux targeted policy package prevented HTCondor's SELinux policy module from loading. Red Hat Enterprise Linux 7.4 systems running with SELinux enabled will require this update for HTCondor to function properly.

( August 1, 2017 ) HTCondor 8.6.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.5. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a memory leak that would cause the condor_collector to slowly grow; Prevent the condor_starter from hanging when using cgroups on Debian; Fixed several issues that occur when IPv6 is in use; Support for using an ImDisk RAM drive on Windows as the execute directory; Fixed a bug where condor_rm rarely removed another one of the user's jobs; Fixed a bug with parallel universe jobs starting on partitionable slots. More details about the fixes can be found in the Version History. HTCondor 8.6.5 binaries and source code are available from our Downloads page.

( June 22, 2017 ) HTCondor 8.7.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.2. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.4 stable release. Enhancements in the release include: Improved condor_schedd performance by turning off file checks by default; condor_annex -status finds VM instances that have not joined the pool; Able to update an annex's lease without adding new instances; condor_annex now keeps a command log; condor_q produces an expanded multi-line summary; Automatically retry and/or resume http file transfers when appropriate; Reduced load on the condor_collector by optimizing queries; A python based condor_top tool. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.2 binaries and source code are available from our Downloads page.

( June 22, 2017 ) HTCondor 8.6.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.4. A stable series release contains significant bug fixes. Highlights of this release are: Python bindings are now available on MacOSX; Fixed a bug where PASSWORD authentication could fail to exchange keys; Pslot preemption now properly handles custom resources, such as GPUs; condor_submit now checks X.509 proxy expiration. More details about the fixes can be found in the Version History. HTCondor 8.6.4 binaries and source code are available from our Downloads page.

( May 22, 2017 ) Register soon for the European HTCondor workshop!
The 2017 European HTCondor workshop will be held at DESY in Hamburg from Tuesday 6 June through Friday 9 June. This is a chance to find out more about HTCondor from the developers, and also to provide feedback and learn from other HTCondor users. Participation is open to all organizations and persons interested in HTCondor.

The registration deadline is Tuesday 30 May -- register here (this web site also has much more information about the conference).

If you're planning to attend, please consider speaking -- we'd like to hear about your project and how you are using HTCondor. Abstracts will be accepted through Friday 26 May via the conference page linked above; follow the "Call for Abstracts" link and select "Submit new abstract".

( May 9, 2017 ) HTCondor 8.6.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.3. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a bug where using an X.509 proxy might corrupt the job queue log; Fixed a memory leak in the Python bindings. More details about the fixes can be found in the Version History. HTCondor 8.6.3 binaries and source code are available from our Downloads page.

( April 24, 2017 ) HTCondor 8.7.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.1. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.2 stable release. Enhancements in the release include: Several performance enhancements in the collector; Further refinement and initial documentation of the HTCondor Annex; Enable chirp for Docker jobs; Job Router uses first match rather than round-robin matching; The schedd tracks jobs counts by status for each owner; Technology preview of late job materialization in the schedd. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.1 binaries and source code are available from our Downloads page.

( April 24, 2017 ) HTCondor 8.6.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.2. A stable series release contains significant bug fixes. Highlights of this release are: New metaknobs for mapping users to groups; Now case-insensitive with Windows user names when storing credentials; Signal handling in the OpenMPI script; Report RemoteSysCpu for Docker jobs; Allow SUBMIT_REQUIREMENT to refer to X509 secure attributes; Linux kernel tuning script takes into account the machine's role. More details about the fixes can be found in the Version History. HTCondor 8.6.2 binaries and source code are available from our Downloads page.

(April 15, 2017 ) Updated HTCondor Week schedule available; reception Wednesday
An updated version of the full HTCondor Week schedule is now available. You can access the schedules for each day from the HTCondor Week page. Hopefully this will be quite close to the final schedule.

Note that there will be a reception sponsored by Cycle Computing on Wednesday from 6-7pm. You can see the details at the Wednesday schedule page.

Please remember that the registration deadline for HTCondor Week is Tuesday, April 25 (register here).

(April 15, 2017 ) Preliminary HTCondor Week schedule available
A preliminary verson of the full HTCondor Week schedule is now available. You can access the schedules for each day from the HTCondor Week page. Please remember that the registration deadline for HTCondor Week is Tuesday, April 25 (register here).

(April 13, 2017 ) HTCondor Week registration deadline extended
The registration deadling for HTCondor Week has been extended until Tuesday, April 25. You can register here. Also, we anticipate posting a detailed schedule within the next day or two.

(April 5, 2017 ) Register soon for HTCondor Week -- hotel block expires this week!
Monday, April 17 is the last day to register for HTCondor week. If you're planning to attend but haven't yet registered, please do so as soon as possible at the registration page. A few other notes:

(March 24, 2017 ) Register for upcoming HTCondor meetings!
Registration is now open for both HTCondor Week 2017 (held in Madison, Wisconsin, USA) and the 2017 European HTCondor workshop (held in Hamburg, Germany). The registration deadline for HTCondor Week is April 17; the registration deadline for the European HTCondor workshop is May 30. If you're planning to attend, please register as soon as possible.

( March 2, 2017 ) HTCondor 8.7.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.7.0. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.6.1 stable release. Enhancements in the release include: Performance improvements in collector's ingestion of ClassAds; Added collector attributes to report query times and forks; Removed extra white space around parentheses when unparsing ClassAds; Technology preview of the HTCondor Annex. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.7.0 binaries and source code are available from our Downloads page.

( March 2, 2017 ) HTCondor 8.6.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.1. Highlights of this release are: condor_q works in situations where user authentication is not configured; Updates to work with Docker version 1.13; Fixed several problems with the Job Router; Update scripts to support current versions of Open MPI and MPICH2; Fixed a bug that could corrupt the job queue log when the disk is full. More details about the fixes can be found in the Version History. HTCondor 8.6.1 binaries and source code are available from our Downloads page.

( February 23, 2017 ) HTCondor Week 2017 registration open
Registration is now open for HTCondor Week 2017. The registration deadline is April 17, 2017.

( February 15, 2017 ) HTCondor Week 2017 web page available
The HTCondor Week 2017 web page is now available. This web page includes information about nearby hotel options (note that HTCondor Week 2017 will be held at a different location than the last few HTCondor Weeks, so that may affect your hotel choice). Registration should be open by the end of February; at this time we anticipate a registration fee of $85/day.

( January 26, 2017 ) HTCondor 8.6.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.6.0. After a year of development, this is the first release of the new stable series. Highlights of this release are: condor_q shows shows only the current user's jobs by default; condor_q summarizes related jobs (batches) on a single line by default; Users can define their own job batch name at job submission time; Immutable/protected job attributes make SUBMIT_REQUIREMENTS more useful; The shared port daemon is enabled by default; Jobs run in cgroups by default; HTCondor can now use IPv6 addresses (Prefers IPv4 when both present); DAGMan: Able to easily define SCRIPT, VARs, etc., for all nodes in a DAG; DAGMan: Revamped priority implementation; DAGMan: New splice connection feature; New slurm grid type in the grid universe for submitting to Slurm; Numerous improvements to Docker support; Several enhancements in the python bindings. Further details can be found in the Upgrade Section. A few bugs were fixed during our stabilization effort. More details about the fixes can be found in the Version History. HTCondor 8.6.0 binaries and source code are available from our Downloads page.

( January 23, 2017 ) HTCondor 8.4.11 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.11. A stable series release contains significant bug fixes. This release is the last planned release of the 8.4 series. Highlights of this release are: Fixed a bug which delayed startd access to stard cron job results; Fixed a bug in pslot preemption that could delay jobs starting; Fixed a bug in job cleanup at job lease expiration if using glexec; Fixed a bug in locating ganglia shared libraries on Debian and Ubuntu. Further details can be found in the Version History. HTCondor 8.4.11 binaries and source code are available from our Downloads page.

( December 15, 2016 ) HTCondor used by Google and Fermilab for a 160k-core cluster
At SC16, the HTCondor Team, Google, and Fermilab demonstrated a 160k-core cloud-based elastic compute cluster. This cluster uses resources from the Google Cloud Platform provisioned and managed by HTCondor as part of Fermilab's HEPCloud facility. The following article gives more information on this compute cluster, and discusses how the bursty nature of computational demands is making the use of cloud resources increasingly important for scientific computing. Find out more information about the Google Cloud Platform here.

( December 13, 2016 ) HTCondor 8.5.8 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.8. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.10 stable release. Enhancements in the release include: The starter puts all jobs in a cgroup by default; Added condor_submit commands that support job retries; condor_qedit defaults to the current user's jobs; Ability to add SCRIPTS, VARS, etc. to all nodes in a DAG using one command; Able to conditionally add Docker volumes for certain jobs; Initial support for Singularity containers; A 64-bit Windows release. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.5.8 binaries and source code are available from our Downloads page.

( December 13, 2016 ) HTCondor 8.4.10 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.10. A stable series release contains significant bug fixes. Highlights of this release are: Updated SELinux profile for Enterprise Linux; Fixed a performance problem in the schedd when RequestCpus was an expression; Preserve permissions when transferring sub-directories of the job's sandbox; Fixed HOLD_IF_CPUS_EXCEEDED and LIMIT_JOB_RUNTIMES metaknobs; Fixed a bug in handling REMOVE_SIGNIFICANT_ATTRIBUTES. Further details can be found in the Version History. HTCondor 8.4.10 binaries and source code are available from our Downloads page.

( November 2, 2016) European HTCondor workshop scheduled for June 6-9, 2017
The 2017 European HTCondor workshop will be held Tuesday, June 6 through Friday, June 9, 2017 at DESY in Hamburg, Germany. We will provide more details as they become available.

( September 29, 2016 ) HTCondor 8.5.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.7. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.9 stable release. Highlights of the release are: The schedd can perform job ClassAd transformations; Specifying dependencies between DAGMan splices is much more flexible; The second argument of the ClassAd ? : operator may be omitted; Many usability improvements in condor_q and condor_status; condor_q and condor_status can produce JSON, XML, and new ClassAd output; To prepare for a 64-bit Windows release, HTCondor identifies itself as X86; Automatically detect Daemon Core daemons and pass localname to them. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.5.7 binaries and source code are available from our Downloads page.

( September 29, 2016 ) HTCondor 8.4.9 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.9. A stable series release contains significant bug fixes. Highlights of this release are: The condor_startd removes orphaned Docker containers on restart; Job Router and HTCondor-C job submission prompts schedd reschedule; Fixed bugs in the Job Router's hooks; Improved systemd integration on Enterprise Linux 7; Upped default number of Chirp attributes to 100, and made it configurable; Fixed a bug where variables starting with STARTD. or STARTER. were ignored. Further details can be found in the Version History. HTCondor 8.4.9 binaries and source code are available from our Downloads page.

( August 24, 2016 ) HTCondor helps with GIS analysis
This article explains how the Clemson Center for Geospatial Technologies (CCGT) was able to use HTCondor to help a student analyze large amounts of GIS (Geographic Information System) data. The article contains a good explanation of how the data was divided up in such a way as to allow it to be processed using an HTCondor pool. Using HTCondor allowed the data to be analyzed in approximately 3 hours, as opposed to the 4.11 days it would have taken on a single computer.

( August 2, 2016 ) HTCondor 8.5.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.6. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.8 stable release. Highlights of the release are: The -batch output for condor_q is now the default; Python bindings for job submission and machine draining; Numerous Docker usability changes; New options to limit condor_history results to jobs since last invocation; Shared port daemon can be used with high availability and replication; ClassAds can be written out in JSON format; More flexible ordering of DAGMan commands; Efficient PBS and SLURM job monitoring; Simplified leases for grid universe jobs. Further details can be found in the Development Version History and the Stable Version History. HTCondor 8.5.6 binaries and source code are available from our Downloads page.

( July 5, 2016 ) HTCondor 8.4.8 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.8. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a memory leak triggered by the python htcondor.Schedd().query() call; Fixed a bug that could cause Bosco file transfers to fail; Fixed a bug that could cause the schedd to crash when using schedd cron jobs; condor_schedd now rejects jobs when owner has no account on the machine; Fixed a new bug in 8.4.7 where remote condor_history failed without -limit; Fixed bugs triggered by the reconfiguration of the high-availability daemon; Fixed a bug where condor_master could hang when using shared port on Windows; Fixed a bug with the -xml option on condor_q and condor_status; A few other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.8 binaries and source code are available from our Downloads page.

( June 27, 2016 ) HTCondor Week 2017 scheduled for May 2-5
HTCondor Week 2017 will be held Tuesday, May 2 through Friday, May 5, 2017 at the Fluno Center on the University of Wisconsin- Madison campus. We will provide more details as they become available.

( June 6, 2016 ) HTCondor 8.5.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.5. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.7 stable release. Highlights of the release are: Improvements for scalability of EC2 grid universe jobs; Docker Universe jobs advertises remote user and system CPU time; Improved systemd support; The master can now run an administrator defined script at shutdown; DAGMan includes better support for the batch name feature. Further details can be found in the Version History. HTCondor 8.5.5 binaries and source code are available from our Downloads page.

( June 6, 2016 ) HTCondor 8.4.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.7. A stable series release contains significant bug fixes. Highlights of this release are: Fixed a bug that could cause the schedd to become unresponsive; Fixed a bug where the Docker Universe would not set the group ID; Docker Universe jobs now drop all Linux capabilities by default; Fixed a bug where subsystem specific configuration parameters were ignored; Fixed bugs with history file processing on the Windows platform; A few other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.7 binaries and source code are available from our Downloads page.

( May 11, 2016 ) HTCondor Week tutorials free to UW-Madison faculty, staff and students
Just a reminder that the Tuesday tutorials at HTCondor Week are free to UW-Madison faculty, staff and students. If you have any interest in using HTCondor and Center for High Throughput Computing resources, we'd love to see you on Tuesday.

However, as everyone knows, there ain't no such thing as a free lunch -- people who attend the tutorials without paying are not eligible for the lunch (you can still get snacks at the breaks, though).

( May 2, 2016 ) HTCondor 8.5.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.4. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.6 stable release. For sites using partitionable slots, one of the fixes from the 8.4.6 release corrects a serious regression in version 8.5.3. Highlights of the release are: Fixed a bug that delays schedd response when significant attributes change; Fixed a bug where the group ID was not set in Docker universe jobs; Limit update rate of various attributes to not overload the collector; To make job router configuration easier, added implicit "target" scoping; To make BOSCO work, the blahp does not generate limited proxies by default; condor_status can now display utilization per machine rather than per slot; Improve performance of condor_history and other tools. Further details can be found in the Version History. HTCondor 8.5.4 binaries and source code are available from our Downloads page.

( April 26, 2016 ) HTCondor Week registration deadline is May 9
The registration deadline for HTCondor Week 2016 has been extended to Monday, May 9. This will be the final extension -- we need to finalize attendance numbers for the caterers.

Also note that Wednesday, April 27, is the last day to be guaranteed to get the conference rate at the DoubleTree Hotel.

( April 26, 2016 ) Why do supercomputers have to be so big?
In this Blue Sky Science article Lauren Michael of the Center for High Throughput Computing answers a question from an eight-year-old: Why do supercomputers have to be so big? The article can also be viewed at the Wisconsin State Journal and the Baraboo News Republic.

( April 21, 2016 ) HTCondor 8.4.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.6. A stable series release contains significant bug fixes. Highlights of this release are: fixed a bug that could cause a job to fail to start in a dynamic slot; fixed a negotiator memory leak when using partitionable slot preemption; fixed a bug that caused supplemental groups to be wrong during file transfer; properly identify the Windows 10 platform; fixed a typographic error in the LIMIT_JOB_RUNTIMES policy; fixed a bug where maximum length IPv6 addresses were not parsed; a few other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.6 binaries and source code are available from our Downloads page.

( April 5, 2016 ) Large Hadron Collider experiment uses HTCondor and Amazon Web Services to probe nature
This Amazon Web services blog post explains how scientists at Fermilab (a Tier 1 data center for the CMS experiment at the LHC) use HTCondor and Amazon Web Services to elastically adapt their computational capacity to changing requirements. Fermilab added 58,000 cores with HTCondor and AWS, allowing them to simulate 500 million events in 10 days using 2.9 million jobs. Adding cores dynamically improves cost efficiency by provisioning resources only when they are needed.

( March 30, 2016 ) Join us at HTCondor Week 2016!

We want to invite you to HTCondor Week 2016, our annual HTCondor user conference, in beautiful Madison, Wisconsin, May 17-20, 2016. We will again host HTCondor Week at the Wisconsin Institutes for Discovery, a state-of-the-art facility for academic and private research specifically designed to foster private and public collaboration. It provides HTCondor Week attendees with a compelling environment in which to attend tutorials and talks from HTCondor developers and users like you. It also provides many comfortable spaces for one-on-one or small group collaborations throughout the week.

Our current development series, 8.5, is well underway toward our upcoming production release. When you attend, you will learn how to take advantage of the latest features. You'll also get a peek into our longer term development plans--something you can only get at HTCondor Week!

We will have a variety of in-depth tutorials and talks where you can not only learn more about HTCondor, but you can also learn how other people are using and deploying HTCondor. Best of all, you can establish contacts and learn best practices from people in industry, government, and academia who are using HTCondor to solve hard problems, many of which may be similar to those you are facing.

Speaking of learning from the community, we'd love to have you give a talk at HTCondor Week. Talks are 15-20 minutes long and are a great way share your ideas and get feedback from the community. If you have a compelling use of HTCondor you'd like to share, see our speaker's page.

You can register, get hotel details, and see the agenda overview on the HTCondor Week 2016 site.

( March 24, 2016 ) HTCondor 8.5.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.3. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.5 stable release. Enhancements in the release include: Use IPv6 (and IPv4) interfaces if they are detected; Prefer IPv4 addresses when both are available; Count Idle and Running jobs in Submitter Ads for Local and Scheduler universes; Can submit jobs to SLURM with the new "slurm" type in the Grid universe; HTCondor is built and linked with Globus 6.0. Further details can be found in the Version History. HTCondor 8.5.3 binaries and source code are available from our Downloads page.

( March 24, 2016 ) HTCondor was critical to the discovery of Einsteins's gravitational waves at LIGO
This New Universe Daily news article discusses the collaboration between the HTCondor team at UW-Madison and the LIGO team at UW-Milwaukee, and how the HTCondor software was critical to the discovery of gravitational waves and will continue to be vital as LIGO moves forward. "For 20 years, LIGO was trying to find a needle in a haystack. Now we’re going to build a needle detection factory,” said Peter Couvares, a Senior Scientist with the LIGO project.

( March 22, 2016 ) HTCondor 8.4.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.5. A stable series release contains significant bug fixes. Highlights of this release are: fixed a bug that would cause the condor_schedd to send no flocked jobs; fixed a bug that caused a 60 second delay using tools when DNS lookup failed; prevent using accounting groups with embedded spaces that crash the negotiator; fixed a bug that could cause use of ports outside the port range on Windows; fixed a bug that could prevent dynamic slot reuse when using many slots; fixed a bug that prevented correct utilization reports from the job router; tune kernel when using cgroups to avoid OOM killing of jobs doing heavy I/O; a few other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.5 binaries and source code are available from our Downloads page.

( March 8, 2016 ) HTCondor helps LIGO confirm last unproven Albert Einstein theory
This Morgridge Institute news article explains the rich back-story of HTCondor's role behind the recent announcement that scientists from the Laser Interferometer Gravitational-Wave Observatory (LIGO) unlocked the final door to Einstein's Theory of Relativity. More than 700 LIGO scientists have used HTCondor to run complex data analysis workflows, accumulating 50 million core-hours in the past six months alone.

( March 2, 2016 ) ATLAS and BNL Bring Amazon EC2 Online
This Open Science Grid news article discusses how a pilot project at the RHIC/ATLAS Computing Facility (RACF) at Brookhaven National Laboratory has used HTCondor-G to incorporate virtual machines from Amazon's Amazon’s Elastic Compute Cloud (EC2) spot market into a scientific computation platform. The ATLAS experiment is moving towards using commercial clouds for computation as budget constraints make maintaining dedicated data centers more difficult.

( March 2, 2016 ) OSG computational power helps solve 30-year old protein puzzle
This Open Science Grid news article discusses how the Baker Lab at the University of Washington has used HTCondor and the OSG to successfully simulate the cylindrical TIM-barrel (triosephosphate isomerase-barrel) protein fold, which has been a challenge for nearly 30 years. TIM-barrel protein folds occur widely in enzymes, meaning that understanding them is important for applications such as the development of new vaccines. The Baker Lab performed about 2.4 million core hours of computation on the OSG in 2015.

( February 22, 2016 ) HTCondor helps to find gravitational waves
This Open Science Grid news article discusses the role of HTCondor, Pegasus and the Open Science Grid in the recently-announced discovery of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO). LIGO used a single HTCondor-based system to run computations across LIGO Data Grid, OSG and Extreme Science and Engineering Discovery Environment (XSEDE)-based resources, and consumed 3,956,910 compute hours on OSG.

( February 18, 2016 ) HTCondor 8.5.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.2. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.4 stable release. Enhancements in the release include: condor_q now defaults to showing only the current user's jobs; condor_q -batch produces a single line report for a batch of jobs; Docker Universe jobs now report and update memory and network usage; immutable and protected job attributes; improved performance when querying a HTCondor daemon's location; Added the ability to set ClassAd attributes within the DAG file; DAGMan now provides event timestamps in dagman.out. Further details can be found in the Version History. HTCondor 8.5.2 binaries and source code are available from our Downloads page.

( February 2, 2016 ) HTCondor 8.4.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.4. A stable series release contains significant bug fixes. Highlights of this release are: fixed a bug that could cause the collector to crash when DNS lookup fails; fixed a bug that caused Condor-C jobs with short lease durations to fail; fixed bugs that affected EC2 grid universe jobs; fixed a bug that prevented startup if a prior version shared port file exists; fixed a bug that could cause the condor_shadow to hang on Windows; a few other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.4 binaries and source code are available from our Downloads page.

( January 28, 2016 ) Registration open for Barcelona Workshop for HTCondor / ARC CE
*REGISTRATION IS NOW OPEN* (until 22nd Feb.)!! The workshop fee is 80 EUROS (VAT included), which covers the lunches and all coffee breaks along the event. The list of recommended hotels, instructions for fee payment, and how to get to the venue is available in the workshop homepage.

( January 8, 2016 ) Re-release of RPMs for HTCondor 8.4.3 and 8.5.1
The HTCondor team is re-releasing the RPMs for 8.4.3 and 8.5.1. A recent change to correct problems with Standard Universe in the RPM packaging resulted in unoptimized binaries to be packaged. The new RPMs have optimized binaries.

( January 4, 2016 ) HTCondor / ARC CE Workshop: 29 February 2016 to 4 March 2016

There will be a workshop for HTCondor and ARC CE users in Barcelona, Spain on Feb 29 2016 — March 4 2016

Save the dates! The HTCondor team, the NorduGrid collaboration, and the Port d'Informació. Cientifica (PIC) + ALBA Synchrotron present a workshop for the users and administrators of HTCondor, the HTCondor CE and the ARC CE to learn and connect in Barcelona, Spain. This is an opportunity for novice and experienced system administrators and users to learn, get help and have exchanges between themselves and with the developers and experts.

The workshop will offer:

  • Introductory tutorials on using and administrating HTCondor, HTCondor CE and ARC CE
  • Technical talks on usage and deployment from developers and your fellow users
  • Talks and tutorials on recent features, configuration, and roadmap
  • The opportunity to meet with HTCondor developers, ARC CE developers, and other experts for non-structured office hours consultancy

Speaking of learning from the community, we would like to hear from people interested in presenting at this workshop. If you have a use case or best practices involving HTCondor, HTCondor CE or ARC CE you'd like to share, please send us an email at hepix-condorworkshop2016-interest (at) cern (dot) ch .

Information on registration will be available soon at: https://indico.cern.ch/e/Spring2016HTCondorWorkshop

Timetable overview: Monday, Tuesday, and Wednesday presentations will be dedicated to HTCondor and HTCondor CE, while Thursday's presentations dedicated to ARC CE. HTCondor and ARC CE developers and experts will be available on Thursday and Friday morning for non-structured "office hours" consultancy and individual discussions with users.

We hope to see you in Barcelona!

( December 21, 2015 ) HTCondor 8.5.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.1. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.3 stable release. Enhancements in the release include: the shared port daemon is enabled by default; the condor_startd now records the peak memory usage instead of recent; the condor_startd advertises CPU submodel and cache size; authorizations are automatically setup when "Match Password" is enabled; added a schedd-constraint option to condor_q. With the shared port daemon enabled, all HTCondor daemons share a single inbound network port. This change makes it much easier to construct a firewall configuration that allows HTCondor use. Further details can be found in the Version History. HTCondor 8.5.1 binaries and source code are available from our Downloads page.

( December 16, 2015 ) HTCondor 8.4.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.3. A stable series release contains significant bug fixes. Highlights of this release are: fixed the processing of the -append option in the condor_submit command; fixed a bug to run more that 100 dynamic slots on a single execute node; fixed bugs that would delay daemon startup when using shared port on Windows; fixed a bug where the cgroup VM limit would not be set for sizes over 2 GiB; fixed a bug to use the ec2_iam_profile_name for Amazon EC2 Spot instances; a few other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.3 binaries and source code are available from our Downloads page.

( November 17, 2015 ) HTCondor 8.4.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.2. A stable series release contains significant bug fixes. Highlights of this release are: a bug fix to prevent the condor_schedd from crashing; a bug fix to honor TCP_FORWARDING_HOST; Standard Universe works properly in RPM installations of HTCondor; the RPM packages no longer claim to provide Globus libraries; bug fixes to DAGMan's "maximum idle jobs" throttle; several other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.2 binaries and source code are available from our Downloads page.

( October 27, 2015 ) HTCondor 8.4.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.4.1. A stable series release contains significant bug fixes. This release contains all of the bug fixes from the recent HTCondor 8.2.10 release. Highlights of this release are: four new policy metaknobs to make configuration easier; a bug fix to prevent condor daemons from crashing on reconfiguration; an option natural sorting option on condor_status; support of admin to mount certain directories into Docker containers; many other bug fixes, consult the version history. Further details can be found in the Version History. HTCondor 8.4.1 binaries and source code are available from our Downloads page.

( October 22, 2015 ) HTCondor 8.2.10 released!
The HTCondor team is pleased to announce the release of HTCondor 8.2.10. A stable series release contains significant bug fixes. Highlights of this release are: an updated RPM to work with SELinux on EL7 platforms; fixes to the condor_kbdd authentication to the X server; a fix to allow the condor_kbdd to work with shared port enabled; avoid crashes when using more than 1024 file descriptors on EL7; fixed a memory leak in the ClassAd split() function; condor_vacate will error out rather than ignore conflicting arguments; a bug fix to the JobRouter to properly process the queue on restart; a bug fix to prevent sending spurious data on a SOAP file transfer; a bug fix to always present jobs in order in condor_history. A complete list of fixed bugs can be found in the Version History. HTCondor 8.2.10 binaries and source code are available from our Downloads page.

( October 12, 2015 ) HTCondor 8.5.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.5.0. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.4.0 stable release. Enhancements in the release include: multiple enhancements to the python bindings; the condor_schedd no longer changes the ownership of spooled job files; spooled job files are visible to only the user account by default; the condor_startd records when jobs are evicted by preemption or draining. Further details can be found in the Version History. HTCondor 8.5.0 binaries and source code are available from our Downloads page.

( September 14, 2015 ) HTCondor 8.4.0 released!
The HTCondor team is pleased to announce the release of HTCondor version 8.4.0. After a year of development, this is the first release of the new stable series. This version contains: a Docker Universe to run a Docker container as an HTCondor job; the submit file can queue a job for each file found; the submit file can contain macros; a dry-run option to condor_submit to test the submit file without any actions; HTCondor pools can use IPv4 and IPv6 simultaneously; execute directories can be encrypted upon user or administrator request; Vanilla Universe jobs can utilize periodic application-level checkpoints; the administrator can establish job requirements; numerous scalability changes. Further details can be found in the Version History. HTCondor 8.4.0 binaries and source code are available from our Downloads page.

( August 27, 2015 ) HTCondor 8.3.8 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.8. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.2.9 stable release. Enhancements in the release include: a script to tune Linux kernel parameters for better scalability; support for python bindings on Windows platforms; a mechanism to remove Docker images from the local machine. Static analysis tools were used to identify and fix memory leaks and other code deficiencies. Further details can be found in the Version History. HTCondor 8.3.8 binaries and source code are available from our Downloads page.

( August 13, 2015 ) HTCondor 8.2.9 released!
The HTCondor team is pleased to announce the release of HTCondor version 8.2.9. A stable series release contains significant bug and security fixes. This version contains: a mechanism for the preemption of dynamic slots, such that the partitionable slot may use the dynamic slot in the match of a different job; default configuration bug fixes for the desktop policy, such that it can both start jobs and monitor the keyboard. A complete list of fixed bugs can be found in the Version History. HTCondor 8.2.9 binaries and source code are available from our Downloads page.

( July 27, 2015 ) HTCondor 8.3.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.7. This development series release contains new features that are under development. Enhancements in the release include: default configuration settings have been updated to reflect current usage; the ability to preempt dynamic slots, such that a job may match with a partitionable slot; the ability to limit the number of jobs per submission and the number of jobs per owner by setting configuration variables. Further details can be found in the Version History. HTCondor 8.3.7 binaries and source code are available from our Downloads page.

( June 23, 2015 ) HTCondor 8.3.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.6. This development series release contains new features that are under development. Enhancements in the release include: initial Docker universe support; IPv4/IPv6 mixed mode support. Further details can be found in the Version History. HTCondor 8.3.6 binaries and source code are available from our Downloads page.

( April 20, 2015 ) HTCondor 8.3.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.5. A development series release contains new features that are under development. This release contains all of the bug fixes from the 8.2.8 stable release. A few of the enhancements in this release include: new features that increase the power of job specification in the submit description file; RPMs for Red Hat Enterprise Linux 6 and 7 are modularized and only distributed via our YUM repository; The new condor-all RPM requires the other HTCondor RPMs of a typical HTCondor installation. Further details can be found in the Version History. HTCondor 8.3.5 binaries and source code are available from our Downloads page.

( April 7, 2015 ) HTCondor 8.2.8 released!
The HTCondor team is pleased to announce the release of HTCondor version 8.2.8. A stable series release contains significant bug and security fixes. This version contains: a bug fix to reconnect a TCP session when an HTCondorView collector restarts; a bug fix to avoid starting too many jobs, only to kill some chosen at random. A complete list of fixed bugs can be found in the Version History. HTCondor 8.2.8 binaries and source code are available from our Downloads page.

( March 26, 2015 ) HTCondor helps astronomers with the hydrogen location problem
This UW Madison news article discusses how a new computational approach permits evaluation of hydrogen data using software, which may replace the time consuming manual approach. Putting HTCondor into the mix scales well given the vast quantities of data expected as Square Kilometer Array radio telescope is realized.

(March 25, 2015 ) HTCondor Week 2015 Registration Open

We invite HTCondor users, administrators, and developers to HTCondor Week 2015, our annual HTCondor user conference, in beautiful Madison, Wisconsin, May 19-22, 2015. HTCondor Week features tutorials and talks from HTCondor developers, administrators, and users. It also provides an opportunity for one-on-one or small group collaborations throughout the week.

( March 5, 2015 ) HTCondor 8.3.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.4. This development release contains a single bug fix for a problem introduced in version 8.3.3 that can cause jobs to not be matched to resources when the condor_schedd is flocking. This 8.3.4 release also has a known issue which prevents a mixed mode, IPv4 and IPv6 HTCondor installation from starting jobs. If using IPv4 and IPv6 in mixed mode communication is required, please continue using HTCondor version 8.3.2. The issue will be fixed in version 8.3.5. Further details can be found in the Version History. HTCondor 8.3.4 binaries and source code are available from our Downloads page.

( February 19, 2015 ) HTCondor 8.3.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.3. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.2.7 stable release. This new version contains: the ability to encrypt a job's directory on Linux execute hosts; enhancements to EC2 grid universe jobs; a more efficient query protocol, including the ability to query the condor_schedd daemon's autocluster set. A complete list of new features and fixed bugs can be found in the Version History. HTCondor 8.3.3 binaries and source code are available from our Downloads page.

( February 11, 2015 ) HTCondor Week 2015 announced!
HTCondor Week 2015 is May 19–22, 2015 in Madison, Wisconsin. Join other users, administrators, and deveopers for the opportunity to exchange ideas and experiences, to learn about the latest research, to experience live demos, and to influence our short and long term research and development directions.

( February 10, 2015 ) HTCondor 8.2.7 released!
The HTCondor team is pleased to announce the release of HTCondor version 8.2.7. A stable series release contains significant bug and security fixes. This version contains: sendmail is used by default for sending notifications (CVE-2014-8126); corrected input validation, which prevents daemon crashes; an update, such that grid jobs work within the current Google Compute Engine; a bug fix to prevent an infinite loop in the python bindings; a bug fix to prevent infinite recursion when evaluating ClassAd attributes. A complete list of fixed bugs can be found in the Version History. HTCondor 8.2.7 binaries and source code are available from our Downloads page.

( February 5, 2015 ) HTCondor assisted the paleobiology application of DeepDive
This UW Madison news article describes the paleobiology application of the DeepDive system, which used text-mining techniques to extract data from publications and build a database. The quality of the database contents equaled that achieved by scientists. HTCondor helped to provide the million hours of compute time needed to build the database from tens of thousands of publications.

( December 23, 2014 ) HTCondor 8.3.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.3.2. This development series release contains new features that are under development. This release contains all of the bug fixes from the 8.2.6 stable release. This new version contains: the next installment of IPv4/IPv6 mixed mode support: a submit node can simultaneously interact with an IPv4 and an IPv6 HTCondor pool; scalability improvements: a reduced memory foot-print of daemons, a reduced number of TCP connections between submit and execute machines, and an improved responsiveness from a busy condor_schedd to queries. A complete list of new features and fixed bugs can be found in the Version History. HTCondor 8.3.2 binaries and source code are available from our Downloads page.

( December 16, 2014 ) HTCondor 8.2.6 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.2.6. This new version contains: a bug fix to the log rotation of the condor_schedd on Linux platforms; transfer_input_files now works for directories on Windows platforms; a correction of the flags passed to the mail program on Linux platforms; a RHEL 7 platform fix of a directory permission that prevented daemons from starting. A complete list of fixed bugs can be found in the Version History. HTCondor 8.2.6 binaries and source code are available from our Downloads page.

( December 1, 2014 ) HTCondor 8.2.5 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.2.5. This new version contains: an updated RPM installation script that preserves a modified condor_config.local file; OpenSSL version 1.0.1j for Windows platforms. a complete list of fixed bugs and features can be found in the Version History. HTCondor 8.2.5 binaries and source code are available from our Downloads page.

( November 18, 2014 ) Registration open for European HTCondor Pool Admin Workshop: Dec. 8th - Dec. 11th, 2014
The HTCondor team, together with Worldwide LHC Computing Grid Deployment Board, is offering a four-day workshop the 8th through the 11th of December at CERN in Geneva, Switzerland, for HTCondor pool administrators. Topics envisioned include pool configuration, management, theory of operation, sharing of best practices and experiences, and monitoring of individual HTCondor batch pools. Special subjects of emphasis may include: scheduling, pool policy selection, performance tuning, debugging failures, and previews of upcoming features of HTCondor. Time will be provided for question and answer sessions. Attendees should have some knowledge of Linux and network administration, but no HTCondor experience will be required. See the workshop's web site to register and for more details.

( November 12, 2014 ) HTCondor 8.2.4 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.2.4. This new version contains: a bug fix for an 8.2.3 condor_schedd that could not obtain a claim from an 8.0.x condor_startd; a bug fix for removed jobs that return to the queue; a workaround for a condor_schedd performance issue when handling a large number of jobs; a bug fix to prevent the condor_kbdd from crashing on Windows; a bug fix to correct the reporting of available disk on Windows. a complete list of bugs fixed and features can be found in the Version History. HTCondor 8.2.4 binaries and source code are available from our Downloads page.

( November 5, 2014 ) Videos from HTCondor Week 2014 available online
The HTCondor team is pleased to announce that many videos from HTCondor Week 2014 are now available for streaming and download. These include an introduction to using HTCondor, introductory and advanced tutorials for DAGMan, and an introduction to administrating HTCondor.

( October 28, 2014 ) European HTCondor Pool Admin Workshop: Dec. 8th - Dec. 11th
The HTCondor team, together with Worldwide LHC Computing Grid Deployment Board, plans to offer a two-day workshop the 8th and 9th of December at CERN in Geneva, Switzerland. HTCondor experts will also be available at CERN on Dec 10th and 11th for less structured one-on-one interaction and problem-solving. This workshop will provide lectures and presentations aimed towards both new and experienced administrators of HTCondor pools setup to manage local compute clusters. See the workshop's web site for more details.

( October 6, 2014 ) Novartis uses HTCondor to further cancer drug design.
In this Novartis presentation at an Amazon Web Services Summit is a description of the problem and its solution, in which Cycle Computing and HTCondor enable the scheduling of 10,600 Amazon EC2 spot instances.

( October 1, 2014 ) HTCondor 8.2.3 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.2.3. This new version contains support for Ubuntu 14.04 LTS, including support for the standard universe. It also contains many bug fixes for minor problems. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.2.3 binaries and source code are available from our Downloads page.

( September 11, 2014 ) HTCondor 8.3.1 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.3.1. This release contains a variety of changes that reduce memory usage and improve performance. If cgroups are used to limit memory utilization, HTCondor sets both the memory and swap limits. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.3.1 binaries and source code are available from our Downloads page.

( August 12, 2014 ) HTCondor 8.3.0 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.3.0. This development release contains all the bug fixes from the stable release version 8.2.2. This first release of the 8.3 series contains performance improvements. In one improvement, the condor_negotiator can request the batching of resource requests from the condor_schedd, improving performance over high latency (wide-area) network links. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.3.0 binaries and source code are available from our Downloads page.

( August 7, 2014 ) HTCondor 8.2.2 released!
The HTCondor team is pleased to announce the release of HTCondor version 8.2.2. This new version contains: support for RHEL 7, and the RPM is modernized; a bug fix for the condor_shared_port daemon eliminates a periodic two-week restart; a bug fix in the detection of hyper-threaded cores on Linux and Mac OSX; a bug fix for condor_q when using the -format option; the condor_collector daemon on a Linux 3.14 or more recent kernel responds faster after a bug fix. A complete list of bugs fixed can be found in the Version History. HTCondor 8.2.2 binaries and source code are available from our Downloads page.

( July 7, 2014 ) HTCondor Security Release: 8.2.1
The HTCondor team is pleased to announce the release of HTCondor version 8.2.1. This release contains an important fix for a security issue introduced in version 8.1.4. Affected users should update as soon as possible. More details on the security issue can be found here. A complete list of bugs fixed can be found in the Version History. HTCondor 8.2.1 binaries and source code are available from our Downloads page.

( June 24, 2014 ) HTCondor 8.2.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.2.0. This new version contains: configuration is more powerful with new syntax and features, and the default configuration policy does not preempt jobs, monitoring is enhanced and now integrates with Ganglia, automated detection and management of GPUs, numerous scalability enhancements improve performance, an improved Python API including support for Python 3, new native packaging and ports are available for the latest Linux distributions including Red Hat 7 Beta and Debian 7, cloud computing improvements including support for EC2 spot instances, OpenStack, and condor_ssh_to_job directly into EC2 jobs, grid universe jobs can now target Google Compute Engine and BOINC servers, partitionable slots now are compatible with condor_startd RANK expressions, and consumption policies permit partitionable slots to be split into dynamic slots at negotiation time, improved data management including dynamic adjustment of the level of file transfer concurrency based on disk load, and experimental support to allow the execution of a job to be overlaid with the transfer of output files from the previous different job, and the new condor_sos tool helps administrators manage overloaded daemons. A complete list of bugs fixed can be found in the Version History. HTCondor 8.2.0 binaries and source code are available from our Downloads page.

( June 5, 2014 ) HTCondor 8.0.7 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.7. This new version contains: Bosco support for OS X Mavericks (10.9); experimental support for compiling standard universe programs with the Intel C Compiler; a fix for a memory leak when using cgroups; several bug fixes for crashes under rare circumstances. A complete list of bugs fixed can be found in the Version History. HTCondor 8.0.7 binaries and source code are available from our Downloads page.

( May 22, 2014 ) HTCondor 8.1.6 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.1.6. Major new features include: automatic recognition, scheduling, and management of GPUs; submit jobs to run on a BOINC server, using the grid universe; major new features for configuration: file inclusion to incorporate configuration, metaknobs--incorporation of predefined sets of configuration, conditional configuration using if/else syntax. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.6 binaries and source code are available from our Downloads page.

( April 15, 2014 ) HTCondor 8.1.5 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.1.5. Major new features include: a change to the default policy, such that it does not preempt jobs; several new instances of non-blocking I/O to improve performance; fewer server resources are used by the condor_schedd when handling condor_q requests; a bug fix, such that large submit description files do not cause condor_submit to crash; a bug fix, such that large configuration files do not cause the condor_master daemon to crash. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.5 binaries and source code are available from our Downloads page.

( April 10, 2014 ) OpenSSL vulnerability
HTCondor users who are using the SSL or GSI authentication methods, or submitting grid universe jobs may be vulnerable. Please see the post on the HTCondor-users mailing list.

( February 27, 2014 ) HTCondor 8.1.4 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.1.4. This development release contains all the bug fixes from the stable release version 8.0.6. Major new features include: added grid universe support for Google Compute Engine; support for defining custom resources that easily manage GPUs; a new tool that does GPU discovery; improved scalability when using the shared port service; Python 3 support; enhanced resilience due to the prompt detection of network failures. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.4 binaries and source code are available from our Downloads page.

( February 20, 2014 ) Consider presenting your work at HTCondor Week 2014
HTCondor Week attendees are interested in hearing about your efforts during our annual meeting, April 28-30. Please consider presenting. Details for adding your talk to the schedule are given in this page of Information for HTCondor Week Speakers.

( February 11, 2014 ) HTCondor 8.0.6 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.6. This new version contains a port of HTCondor for Red Hat Enterprise Linux 7.0 Beta on the x86_64 architecture that includes support for the standard universe. It also contains bug fixes for: transferring files larger then 4 GiB on Windows and 32-bit platforms; using a minimum of 1024-bit keys on proxy certificates generated by HTCondor; accepting DAG input files larger then 2 GiB; the Windows MSI installer setting up a proper configuration for the VM universe; honoring CPU affinity on Windows platforms; issues with a failing condor_schedd daemon, when HTCondor is compiled with gcc 4.8+, the default compiler on recent Fedora releases. A complete list of bugs fixed can be found in the Version History. HTCondor 8.0.6 binaries and source code are available from our Downloads page.

(January 10, 2014) HTCondor Week 2014 Announced: April 28-30

HTCondor Week 2014, our annual HTCondor user conference, is scheduled for April 28-April 30, 2014. We will again host HTCondor Week at the Wisconsin Institutes for Discovery in beautiful Madison, Wisconsin.

In a change from previous years, technical talks will begin on Monday. See the web site for current details.

At HTCondor Week, you can look forward to:

  • Technical talks on usage and deployment from developers and your fellow users
  • Talks and tutorials on new HTCondor features
  • Talks on future plans for HTCondor
  • Introductory tutorials on using and administrating HTCondor
  • The opportunity to meet with HTCondor developers and other users

Information on registration and scheduling will be available soon.

( December 23, 2013 ) HTCondor 8.1.3 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.1.3. This development release contains all the bug fixes from the stable release version 8.0.5. Major new features include: the parsing of configuration has changed such that comments are permitted within multi-line definitions; the condor_sos tool helps administrators manage overloaded daemons by causing commands to be handled with a higher priority; a new Python binding reads event logs. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.3 binaries and source code are available from our Downloads page.

( December 12, 2013 ) HTCondor 8.0.5 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.5. This new version contains bug fixes for: a heavily loaded condor_schedd daemon crashing when starting a local universe job, a condor_schedd daemon failing to start due to illegal values in the job queue or accounting recovery logs, interactive jobs not running when using cgroups, permissions errors preventing java universe jobs from running, and VMware vm universe jobs removing useful devices. A complete list of bugs fixed can be found in the Version History. HTCondor 8.0.5 binaries and source code are available from our Downloads page.

( November 4, 2013 ) HTCondor assists in Einstein@Home discovery of a new radio pulsar
We add our congratulations to James Drews of the University of Wisconsin - Madison for the discovery of J1859+03, a new radio pulsar, within data from the Arecibo Observatory PALFA survey. James backfills the Computer Aided Engineering HTCondor pool with the Einstein@Home boinc client.

( October 31, 2013 ) HTCondor 8.1.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.1.2. This development release contains all the bug fixes from the stable release version 8.0.4. Major new features include: partitionable slots can now be split into dynamic slots at negotiation time using new consumption policies; new condor_chirp commands permit updates to job ClassAd attributes to occur in a delayed fashion, reducing the overhead of making the update; there are many Python binding improvements including a new Negotiator class; condor_ssh_to_job now works for grid universe jobs on amazon EC2 resources; new command line options for condor_config_val and condor_history allow them to query remote machines; increased the scalability of the condor_shared_port daemon, condor_queue, and condor_status by increasing concurrency. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.2 binaries and source code are available from our Downloads page.

( October 24, 2013 ) HTCondor 8.0.4 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.4. This new version contains a clipped version of HTCondor for Ubuntu 12.04 on the x86_64 architecture, and a fix for condor_ssh_to_job incorrectly removing jobs when cgroups are used. A complete list of bugs fixed can be found in the Version History. HTCondor 8.0.4 binaries and source code are available from our Downloads page.

( October 10, 2013 ) Interview with Miron Livny
In this UW-Madison news story, Miron Livny offers perspective on finding the Higgs boson particle and the computational collaboration that supported this and other scientific research.

( September 30, 2013 ) HTCondor is a hero of software engineering
as reported by Ian Cottam in his blog for the Software Sustainability Institute at the University of Manchester. Ian appreciates that HTCondor is easy to install, runs on many platforms, and contains features such as DAGMan to order the execution of sets of jobs, making the system even more useful.

( September 23, 2013 ) HTCondor 8.0.3 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.3. This new version contains a fix for DAGMan recovery mode when using Pegasus-generated sub-DAGs, and a fix for condor_ssh_to_job when using PID namespaces. A complete list of bugs fixed can be found in the Version History. HTCondor 8.0.3 binaries and source code are available from our Downloads page.

( September 17, 2013 ) HTCondor 8.1.1 released!
The HTCondor Team is pleased to announce the release of HTCondor version 8.1.1. This development release contains all the bug fixes from the stable release version 8.0.2. Major new features include: the condor_startd daemon now advertises statistics about preemption, parameter substitution in configuration now honors per-daemon overrides. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.1 binaries and source code are available from our Downloads page.

( September 10, 2013 ) Success stories enhanced by HTCondor in the area of brain research
International Science Grid This Week (ISGTW) reports on two research efforts in the area of brain research. The work of Ned Kalin is highlighted in this article on brain circuitry and mechanisms underlying anxiety. And, high throughput computing permits the research of Mike Koenigs in psychopathy to analyze data in days, when without HTC, it might take years.

( August 22, 2013 ) HTCondor 8.0.2 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.2. This new version contains a workaround to avoid a Linux kernel panic when using cgroups, fixes for the python bindings, and a fix for vm universe jobs under Xen or KVM. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.0.2 binaries and source code are available from our Downloads page.

( August 5, 2013 ) HTCondor 8.1.0 released!
The HTCondor Team is pleased to announce the release of HTCondor 8.1.0. This first release in a new development series includes all bug fixes added in the 8.0.1 stable series. Major new features include: the ability to push usage metrics into the Ganglia Monitoring System, DAGMan now reports usage metrics, a Debian 7 port including support for the standard universe. The Python bindings omitted from this release will reappear in improved form in version 8.1.1. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.1.0 binaries and source code are available from our Downloads page.

( July 17, 2013 ) HTCondor 8.0.1 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.1. This new version contains support for Debian 7 (wheezy) with standard universe, fixes in hierarchical group quotas, fixes for DAGMan restarting workflows on upgrade, a fix for CCB only using the first broker even when given a list. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.0.1 binaries and source code are available from our Downloads page.

( July 10, 2013 ) Miron Livny receives the HPDC 2013 Achievement Award
Miron Livny, Director of the UW-Madison Center for High Throughput Computing and founder of the HTCondor workload management system, has been honored with the 2013 High Performance Parallel and Distributed Computing (HPDC) Achievement Award.

( June 6, 2013 ) HTCondor 8.0.0 released!
The HTCondor team is pleased to announce the release of HTCondor 8.0.0. This release is the first in the new stable series. The major version number changed because of the project rename to HTCondor and not because of major incompatibility with the version 7.8 stable series. This new version contains Bosco, support for EC2 Spot instances, interactive jobs, improved job sandboxing, native python API and several new tools. A complete list of bugs fixed and features can be found in the Version History. HTCondor 8.0.0 binaries and source code are available from our Downloads page.

( June 6, 2013 ) Open Science Grid releases Bosco 1.2, based on HTCondor
Bosco is a client for Linux and Mac operating systems for submitting jobs to remote batch systems without administrator assistance. It is designed for end-users, and only requires ssh access to one or more cluster front-ends. Target clusters can be HTCondor, LSF, PBS, SGE or SLURM managed resources. The new Bosco 1.2 release is much easier to install, will handle more jobs, will send clearer error messages, and makes it easier to specify the memory you need inside the clusters you connect to.

( June 6, 2013 ) HPCwire article highlights running stochastic models on HTCondor
An article published at HPCwire highlights research out of Brigham Young University with a goal to demonstrate an alternative model to High Performance Computing (HPC) for water resource stakeholders by leveraging High Throughput Computing (HTC) with HTCondor.

( May 29, 2013 ) Atlas project at CERN describes their computing environment
The HPCwire: CERN, Google Drive Future of Global Science Initiatives article describes the computing environment of the ATLAS project at CERN. HTCondor and now Google Compute Engine aid the extensive collision analysis effort for ATLAS.

( May 08, 2013 ) HTCondor 7.9.6 released!
The HTCondor team is pleased to announce the release of HTCondor 7.9.6. This is the final release of the 7.9 series. This release contains new tools, VMware player support, Linux out of memory killer hints, python bindings, new configuration parameters, and many bug fixes. A complete list of bugs fixed and features can be found in the Version History. HTCondor 7.9.6 binaries and source code are available from our Downloads page.

( April 17, 2013 ) HTCondor 7.9.5 released!
The HTCondor team is pleased to announce the release of HTCondor 7.9.5. This release introduces a new tool - condor_tail - which can be used to see files in the sandbox of a running job. It improves to the transfer queue with a fair share policy and per-user transfer statistics. Per-submitter time limits are now honored by the Negotiator. There are bug fixes for grid universe, dagman, the Windows keyboard daemon and more. A complete list of bugs fixed and features can be found in the Version History. HTCondor 7.9.5 binaries and source code are available from our Downloads page.

( April 1, 2013 ) HTC deals with big data
Contributor Miha Ahronovitz traces the history of high throughput computing (HTC), noting the particularly enthusiastic response from the high energy physics world and the role of HTC in such important discoveries as the Higgs boson. As one of the biggest generators of data, this community has been dealing with the "big data" deluge long before "big data" assumed its position as the buzzword du jour. Read more at HPC In the Cloud.

( March 28, 2013 ) HTCondor 7.8.8 released!
The HTCondor team is pleased to announce the release of HTCondor 7.8.8. This release contains bug fixes for reconnection failure when using CCB, introduces automatic retries for some glexec errors, and fixes several other grid related bugs. A complete list of bugs fixed can be found in the Version History. HTCondor 7.8.8 binaries and source code are available from our Downloads page.

(March 8, 2013) Paradyn/HTCondor Week 2013 registration open

We want to invite you to HTCondor Week 2013 , our annual HTCondor user conference, in beautiful Madison, WI April 29-May 3, 2013. (HTCondor Week was formerly named Condor Week, matching a name change for the software.) We will again host HTCondor Week at the Wisconsin Institutes for Discovery, a state of the art facility for academic and private research specifically designed to foster private and public collaboration. It provides HTCondor Week attendees a compelling environment to attend tutorials and talks from HTCondor developers and users like you. It also provides many comfortable spaces for one-on-one or small group collaborations throughout the week. This year we continue our partnership with the Paradyn Tools Project, making this year Paradyn/HTCondor Week 2013. There will be a full slate of tutorials and talk for both HTCondor and Paradyn.

Our current development series, 7.9, is well underway toward our upcoming production release. When you attend, you will learn how to take advantage of the latest features such as per-job PID namespaces, cgroup enforced resource limits, Python bindings, CPU affinity, BOSCO for submitting jobs to remote batch systems without administrator assistance, EC2 spot instance support, and a variety of speed and memory optimizations. You'll also get a peek into our longer term development plans--something you can only get at HTCondor Week!

We will have a variety of in-depth tutorials, talks, and panels where you can not only learn more about HTCondor, but you can also learn how other people are using and deploying HTCondor. Best of all you can establish contacts and learn best practices from people in industry, government and academia who are using HTCondor to solve hard problems, many of which may be similar to those facing you.

Speaking of learning from the community, we'd love to have you give a talk at HTCondor Week. Talks are 20 minutes long and are a great way share your ideas and get feedback from the community. If you have a compelling use of HTCondor you'd like to share, let Alan De Smet know (adesmet@cs.wisc.edu) and he'll help you out. More information on speaking at HTCondor Week is available at the HTCondor Week web site.

You can register, get the hotel details and see the agenda overview on the HTCondor Week 2013 site. See you soon in Madison!

(February 20, 2013) HTCondor 7.9.4 released!
The HTCondor team is pleased to announce the release of HTCondor 7.9.4. This release supports per job PID namespaces for Linux RHEL 6, improvements to the resource usage of the EC2 GAHP, support for capping the size of input and output file transfer, and new analysis modes for condor_q -analyze. A complete list of bugs fixed and features can be found in the Version History. HTCondor 7.9.4 binaries and source code are available from our Downloads page.

(January 16, 2013) HTCondor 7.9.3 released!
The HTCondor team is pleased to announce the release of HTCondor 7.9.3. This release contains all of the bug fixes added to the 7.8.7 stable release. The glexec problems we warned about in the 7.9.2 release notes have been fixed. Dynamic slots can now be given CPU affinity, there are number of improvements in the way grid universe jobs are handled, and there are some experimental improvements to condor_q -analyze A complete list of bugs fixed and features can be found in the Version History. HTCondor 7.9.3 binaries and source code are available from our Downloads page.

(December 18, 2012) HTCondor 7.8.7 released!
The HTCondor team is pleased to announce the release of HTCondor 7.8.7. This release contains several bug fixes related to grid jobs, including EC2 resource jobs. It has bug fixes for glexec, privilege separation, condor_chirp, and a bug that prevented HTCondor from being stopped on system shutdown on Red Hat Linux systems. A complete list of bugs fixed can be found in the Version History. HTCondor 7.8.7 and source code are available from our Downloads page.

(December 11, 2012) HTCondor 7.9.2 released!
The HTCondor team is pleased to announce the release of HTCondor 7.9.2. Now with more HT. This release contains all of the bug fixes added to the 7.8.6 stable release, and most of those added to the upcoming 7.8.7 stable release. This release also contains improvements in DAGMan, use of cgroups, and changes to improve the privacy of user data. This release has known problems with glexec that we expect to have fixed in the next developer release. Users of glexec should skip this release. A complete list of bugs and features can be found in the Version History. HTCondor 7.9.2 binaries and source code are available from our Downloads page.

(October 25, 2012) Condor Security Release: 7.8.6
The Condor Team is pleased to announce the release of Condor 7.8.6. which contains an important security fix that was incorrectly documented as being in the 7.8.5 release. This release is otherwise identical to the 7.8.5 release. Affected users should upgrade as soon as possible. More details on the security issue can be found here. Condor binaries and source code are available from our Downloads page.

(October 25, 2012) "Condor" name changing to "HTCondor"
In order to resolve a lawsuit challenging the University of Wisconsin-Madison's use of the "Condor" trademark, the University has agreed to begin referring to its Condor software as "HTCondor" (pronounced "aitch-tee-condor"). The letters at the start of the new name ("HT") derive from the software's primary objective: to enable high throughput computing, often abbreviated as HTC. Starting in the end of October and through November of this year, you will begin to see this change reflected on our web site, documentation, web URLs, email lists, and wiki. While the name of the software is changing, nothing about the naming or usage of the command-line tools, APIs, environment variables, or source code will change. Portals, procedures, scripts, gateways, and other code built on top of the Condor software should not have to change at all when HTCondor is installed.

(October 22, 2012) Condor 7.9.1 released!
The Condor Team is pleased to announce the release of Condor 7.9.1. This is a development release which includes many new features, as well as all bug and security fixes from 7.8.5. See the Version History for a complete list of changes. Condor 7.9.1 binaries and source code are available from our Downloads page.

(October 22, 2012) Condor 7.8.5 Released!
The Condor Team is pleased to announce the release of Condor 7.8.5, which includes fixes for several bugs. Details on obugs fixed can be found here, and Condor binaries and source code are available from our Downloads page.

(September 24, 2012) Red Hat releases Enterprise MRG 2.2
This Red Hat press release describes updates in the new 2.2 release. New features increase security and expand cloud readiness with jobs that can be submitted to use the Condor Deltacloud API.

(September 19, 2012) Condor 7.6.10 and 7.8.4 released!
The Condor Team is pleased to announce the releases of Condor 7.6.10 and 7.8.4. These releases contain several important security fixes. However, none of the security vulnerabilities are rated worse than "Moderate" though users are still encouraged to upgrade as soon as possible. See the Version History for a complete list of changes. Condor binaries and source code are available from our Downloads page.

(September 6, 2012) Condor 7.8.3 released!
The Condor Team is pleased to announce the release of Condor 7.8.3. This release fixes several important bugs in 7.8.2 and earlier versions of Condor. See the Version History for a complete list of changes. Condor 7.8.3 binaries and source code are available from our Downloads page.

(August 16, 2012) Condor 7.9.0 released!
The Condor team is pleased to announce the release of Condor 7.9.0. This is the first release in a new development series. Condor 7.9.0 contains all the bug fixes from Condor version 7.8.2. The Version History lists the changes. Condor 7.9.0 binaries and source code are available from our Downloads page.

(August 15, 2012) Condor Security Release: 7.6.9
Regrettably, due to an error in building 7.6.8, it is not a valid release and has been pulled from the web. Please update to version 7.6.9 or 7.8.2 instead to address the security issue posted yesterday. More details on the security problem can be found here, and Condor binaries and source code are available from our Downloads page.

(August 14, 2012) Condor Security Releases: 7.8.2 and 7.6.8
The Condor Team is pleased to announce the release of Condor 7.8.2 and Condor 7.6.8, which fix an important security issue. All users should upgrade as soon as possible. More details on the security problem can be found here, and Condor binaries and source code are available from our Downloads page.

(August 1, 2012) Condor contributes to LHC and research efforts benefit
This UW-Madison news release describes the collaboration and contribution of Condor to the computing efforts that support research efforts across the globe.

(July 3, 2012) DOE and NSF award $27 million to OSG
This Department of Energy Office of Science and the National Science Foundation award to the OSG will extend the reach of OSG capabilities that support research with computing power and data storage, as detailed in this UW-Madison news release. Condor is a significant component in the distributed high-throughput OSG middleware stack.

(June 15, 2012) Condor 7.8.1 released!
The Condor Team is pleased to announce the release of Condor 7.8.1. This release fixes several important bugs in 7.8.0 and earlier versions of Condor. See the Version History for a complete list of changes. Condor 7.8.1 binaries and source code are available from our Downloads page.

(May 10, 2012) Condor 7.8.0 released!
The Condor team is pleased to announce the release of Condor 7.8.0. This is the first entry in a new stable series, contains all the features and bug fixes in the 7.7 development series. See the version History for a complete list of changes.

(May 2, 2012) Condor 7.6.7 released
The Condor team is pleased to announce the newest release in our development series, 7.6.7. This release fixes several important bugs, and we believe this will be the last release in the 7.6 series. Please see the release notes for a complete list. Condor binaries and source code are available from our Downloads page.

(May 2, 2012) 50,000-Core Condor cluster provisioned by Cycle Computing
for the Schroedinger Drug Discovery Applications Group. See the article in Hostingtecnews.com, or the article in BioIT World. And, Condor helped enable this research.

(April 24, 2012) Condor 7.7.6 released
The Condor team is pleased to announce the newest release in our development series, 7.7.6. This release represents the release candidate for Condor version 7.8, and it is the last release in the 7.7 development series. Please see the release notes for a complete list. Condor binaries and source code are available from our Downloads page.

(March 25, 2012) Two Condor papers selected as most influential in HPDC
Two papers by the Condor Team were selected as to represent the most influential papers in the history of The International ACM Symposium on High-Performance Parallel and Distributed Computing (HPDC). Details...

(March 15, 2012) Congratulations to Victor Ruotti
computational biologist at the Morgridge Institute for Research, winner of the CycleCloud BigScience Challenge 2011. Read more about both the challenge and the finalists in the Cycle Computing press release.

(March 2, 2012) Condor in EC2 now supported by Red Hat
Red Hat Enterprise MRG support expands into the cloud as announced in this press release, by leveraging the EC2 job universe in Condor, and by maintaining supported images of Red Hat Enterprise Linux with Condor pre-installed on Amazon storage services. Red Hat MRG can schedule local grids, remote grids, virtual machines for internal clouds, and now, rented cloud infrastructure. There is also documentation of this feature.

(February 28, 2012) Condor 7.7.5 released
The Condor team is pleased to announce the newest release in our development series, 7.7.5. This release represents the feature freeze for Condor version 7.8, and we expect it to be the penultimate release in the 7.7 development series. New features in this release include better statistics for monitoring a Condor pool, better support for absent ads in the collector, fast claiming of partitionable slots, and support for some newer Linux kernel features to better support process isolation. Please see the release notes for a complete list. Condor binaries and source code are available from our Downloads page.

(February 10, 2012) Red Hat announces the release of Red Hat Enterprise MRG 2.1,
offering increased performance, reliability, interoperability, as presented in this news release.

(February 06, 2012) Upgrades recommended
Please upgrade to the latest versions of the stable and development series. There have been many important bug fixes in both, including a fix for a possible Denial Of Service attack from trusted users. (Details here)

(January 17, 2012) Condor 7.6.6 released
The Condor team is pleased to announce the newest release in our stable series, 7.6.6. This release fixes several important bugs in 7.6.5 and earlier versions of Condor, including a problem which would cause the schedd to abort, a problem which prevented the checkpoint server from running on RHEL 6, and a memory leak in the schedd. Please see the release notes for a complete list. Condor binaries and source code are available from our Downloads page.

(December 28, 2011) Condor 7.6.5 released
The Condor team is pleased to announce the newest release in our development series, 7.6.5. This release fixes several important bugs, including a problem with chirp. It includes changes to the negotiation to fix incompatibilities with group quotas which were introduced in the 7.4 series. Please see the release notes for a complete list. Condor binaries and source code are available from our Downloads page.

(December 21, 2011) Condor 7.7.4 released
The Condor team is pleased to announce the newest release in our development series, 7.7.4. This introduces support for IPv6 based networks, changes the way accounting group quotas are managed to be more compatible with the way it worked in 7.4.x, fixes a Chirp bug that caused problems for the vanilla universe, and contains initial support for draining off jobs out of startds. Please see the release notes for a complete list. Please note that we are skipping the 7.7.3 release, and that this 7.7.4 release is the next release available after 7.7.2. has a list of the major changes. Condor binaries and source code are available from our Downloads page.

(October 24, 2011) Condor 7.6.4 released
The Condor team is pleased to announce the release of Condor version 7.6.4. This is the fourth release in the stable series. This release fixes a rare, but serious bug which can cause the collector to crash. The Version History has a list of the major changes. Condor binaries and source code are available from our Downloads page.

(October 12, 2011) Condor 7.7.2 released
The Condor team is pleased to announce the release of Condor version 7.7.2. This is the third release in the development series. This release dynamically links more libraries than before, resulting in a 30 percent decrease in download size on most operating systems. Please be aware that due to a difference in older condor_master binaries, condor_masters older than 7.7.2, including all 7.6 releases, can not re-exec a 7.7.2 master. That is, if you try to upgrade a pre-7.7.2 system just by copying over binaries, the condor_master will shutdown, and must be manually restarted. 7.7.2 masters can re-exec themselves without incident. The Version History has a list of the major changes. Condor binaries and source code are available from our Downloads page.

(September 20, 2011) Cycle Computing uses Condor to create 30,000-core cluster in Amazon's EC2
Cycle Computing has built a Condor-managed 30,000-core cluster on top of Amazon EC2. This builds on work presented at Condor Week 2011 where they built a 10,000-core cluster.

(September 12, 2011) Condor 7.7.1 released!
The Condor team is pleased to announce the release of Condor 7.7.1. This is the second release in the development series. This release of Condor now dynamically links the executables to the system security libraries, including openssl. In the past, these libraries have been statically linked into the binaries. As a result, system security updates will immediately benefit Condor. The downside is that binaries built for a given platform may not be as portable to other platforms as in the past. We have also seen a very rare, intermittent problem with DAGMan where the DAGMan program will ignore a successful job completion, and wait forever. We hope to resolve this problem in the next development release. The Version History has a list of the major changes. Condor binaries and source code are available from our Downloads page.

(August 23, 2011) Condor 7.6.3 released!
The Condor team is pleased to announce the release of Condor 7.6.3. This is the third release in the stable series. This release fixes some critical bugs in the parallel universe dealing with job leases and the ability to restart parallel jobs when the schedd restarts.. The Version History has a list of the major changes. Condor binaries and source code are available from our Downloads page.

(July 29, 2011) Condor 7.7.0 released!
The Condor team is pleased to announce the release of Condor 7.7.0. This is the first release in a new development series. In addition to other major new features, the schedd now publishes performance statistics, and PERIODIC_HOLD can now send the hold reason and hold reason code fields. Condor 7.7.0 contains all the bug fixes from Condor version 7.6.2. A partial Version History has a list of some of the changes. Condor 7.7.0 binaries and source code are available from our Downloads page.

(July 19, 2011) Condor 7.6.2 released!
The Condor team is pleased to announce the release of Condor 7.6.2. This version fixes problems with ssh_to_job. It fixes a crash in the schedd that was common with parallel universe jobs. 7.6 still has a known problem running parallel universe jobs that will be fixed in 7.6.3, which is planned for the first half of August. See the Version History for a complete list of changes. Condor 7.6.2 binaries and source code are available from our Downloads page.

(June 03, 2011) Condor 7.6.1 released!
The Condor team is pleased to announce the release of Condor 7.6.1. See the Version History for a complete list of changes. Condor 7.6.1 binaries and source code are available from our Downloads page.

(May 5, 2011) Center for High Throughput Computing (CHTC) becomes first Red Hat Center of Excellence Development Partner
Red Hat announced that it has expanded its technology partnership with the University of Wisconsin-Madison (UW-Madison) to establish the Center for High Throughput Computing (CHTC) as the first Red Hat Center of Excellence Development Partner. In addition, Red Hat has awarded the UW-Madison CHTC its Red Hat Cloud Leadership Award for its advancements in cloud computing based on the open source Condor project and Red Hat technologies. See the Red Hat press release for more information.

(April 19, 2011) Condor 7.6.0 released!
The Condor team is pleased to announce the release of Condor 7.6.0. This is the first entry in a new stable series, contains all the features and bug fixes in the 7.5 development series. See the version History for a complete list of changes.

(April 6, 2011) Cycle Computing uses Condor to create 10,000-core cluster in Amazon's EC2
Cycle Computing used Condor to create a 10,000-core cluster on top of Amazon EC2. The virtual cluster was used for 8 hours to provide 80,000 hours of compute time for protein analysis work for Genentech. "The 10,000-core cluster that Cycle Computing set up and ran for eight hours on behalf of Genentech would have ranked at 114 on the Top 500 computing list from last November (the most current ranking), so it was not exactly a toy even if the cluster was ephemeral."

(March 21, 2011) Condor 7.5.6 released!
The Condor Team is pleased to announce the release of Condor 7.5.6. This is a development release of Condor. This release is contains various new features, improvements, and bug fixes. Among these are several improvements for CREAM grid jobs, efficiency improvements in the schedd when handling large numbers of shadow processes, and added support for hierarchical accounting groups and group quotas. Please note that some platforms were discontinued in this release. For further details of changes and discontinued platforms, please refer the 7.5.6 version history. Condor 7.5.6 binaries and source code are available from our Downloads page. A large number of bugs have been fixed - more details are in the Version History. Condor 7.5.6 binaries and source code are available from our downloads page.

(January 26, 2011) Condor 7.5.5 released!
The Condor Team is pleased to announce the release of Condor 7.5.5. This is a development release of Condor. This release is primarily to improve scalability and performance. Additionally, of note to those people who build Condor from source, we have modernized our build system to use cmake instead of imake. A large number of bugs have been fixed - more details are in the Version History. Condor 7.5.5 binaries and source code are available from our downloads page.

(December 8, 2010) Purdue researchers analyze Wikipedia using Condor, DAGMan, and TeraGrid
Dr. Sorin Adam Matei and hi team are using Condor and DAGMan on TeraGrid to study Wikipedia. They are studying how collaborative, network-driven projects organize and function. Condor allowed them to harness approximately 4,800 compute hours in one day, processing 4 terabytes of information.

(October 20, 2010) Red Hat has announces the release of Enterprise MRG Grid 1.3
The Red Hat news release details the release of Enterprise MRG Grid 1.3, its grid product based on Condor. The release includes new administrative and user tools, Windows execute node support, enhanced workflow management, improved scheduling capabilities, centralized configuration management, and new virtual machine and cloud spill-over features. MRG Grid is also now fully supported for customers in North America and extended coverage is provided to customers throughout Europe. With MRG Grid 1.3, customers will gain the ability to scale to tens of thousands of devices, manage their grid in a centralized fashion, be able to provision virtual machines for grid jobs, and connect their grid to private and public clouds.

(October 20, 2010) Condor 7.5.4 released!
The Condor Team is pleased to announce the release of Condor 7.5.4. This is a development release of Condor. New features include concurrency limits for parallel jobs, transfer of directories, condor_shared_port on Windows, and improved Amazon EC2 support. It also includes a security fix for users submitting Amazon EC2 jobs (universe=grid and grid_resource=amazon) with the amazon_keypair_file. See the Version History for a complete list of changes. Condor 7.5.4 binaries and source code are available from our Downloads page.

(October 18, 2010) Condor 7.4.4 released!
The Condor Team is pleased to announce the release of Condor 7.4.4. This is a stable release of Condor. It includes a security fix for users submitting Amazon EC2 jobs (universe=grid and grid_resource=amazon) with the amazon_keypair_file. See the Version History for a complete list of changes. Condor 7.4.4 binaries and source code are available from our Downloads page.

(October 6, 2010) Announcing Condor Day Japan
The first Condor Day Japan workshop will be held on November 4, 2010 in Akihabara, Tokyo. This one day workshop will give collaborators and users the chance to exchange ideas and experiences, learn about latest research, experience live demos, and influence short and long term research and development directions. The submission deadline is October 18, 2010. Please send inquiries to condor-days@m.aist.go.jp .

(August 16, 2010) Condor 7.4.3 released!
The Condor Team is pleased to announce the release of Condor 7.4.3. This is a stable release of Condor. This fixes several bugs in the 7.4.2 release. See the Version History for a complete list of changes. Condor 7.4.3 binaries and source code are available from our Downloads page.

(July 19, 2010) Condor brings genome assembly down to Earth
Condor is helping geneticists harness idle computers, avoiding the need for multimillion-dollar supercomputers.

(July 8, 2010) Purdue's Condor-based DiaGrid manages power as well
ZDNet's GreenTech Pastures blog reports that Purdue's Condor-based DiaGrid helps them maximize utilization for electricity consumed. DiaGrid manages 28,000 processors across three states.

(June 29, 2010) Condor 7.5.3 released!
The Condor Team is pleased to announce the release of Condor 7.5.3. This is a development release of Condor. Please note that we dropped our old repackaged tarball rpms, and now only provide the proper rpm and debian packages introduced in version 7.5.1. Therefore you will see fewer downloads offered for 7.5.3 compared to 7.5.2. See the Version History for a complete list of changes. Condor 7.5.3 binaries and source code are available from our Downloads page.

(April 26, 2010) Condor 7.5.2 released!
The Condor Team is pleased to announce the release of Condor 7.5.2. This is a development release of Condor. The main new features are performance enhancements in the scheduler daemon, improved user job log locking support for distributed file systems, and DAGMan allowing lazy generation of DAGMan submit files in nested DAGs. All bug fixes currently scheduled to go into 7.4.3 are included in 7.5.2. See the Version History for a complete list of changes. Condor 7.5.2 binaries and source code are available from our Downloads page.

(April 6, 2010) Condor 7.4.2 released!
The Condor Team is pleased to announce the release of Condor 7.4.2. This is a stable release of Condor which includes numerous bug fixes to 7.4.1. See the Version History for a complete list of changes. Condor 7.4.2 binaries and source code are available from our Downloads page.

(March 3, 2010) Cardiff University credits Condor with reducing energy bills
This Joint Information Systems Committee (JISC) September 2009 article "Energy Efficiency for High-Powered Research Computing" shows the quantity of research computing that can be completed while still saving power.

(March 2, 2010) Condor 7.5.1 released!
The Condor Team is pleased to announce the release of Condor 7.5.1. This is a development release of Condor. The main new feature is the change from old to new ClassAds throughout the code. Proper native packages are now available for most flavors of linux. All bug fixes currently scheduled to go into 7.4.2 are included in 7.5.1. See the Version History for a complete list of changes. Condor 7.5.1 binaries and source code are available from our Downloads page.

(March 2, 2010) Open Source Energy Savings
The article "Open Source Energy Savings" at Forbes.com discusses Condor's green computing work.

(January 12, 2010) Condor cluster helps to evolve naval strategy in Singapore
Researchers at Singapore's national defense R&D organization, DSO National Labs, run evolutionary algorithms on their Condor cluster to evaluate and adapt maritime force protection tactics. This paper describes computer-evolved strategies running on a Condor cluster, applying it to the defense of commercial shipping in the face of piracy.

(January 7, 2010) Condor 7.5.0 released!
The Condor Team is pleased to announce the release of Condor 7.5.0. This is a development release of Condor. The main new feature is the ability to have Condor daemons share a single network port for incoming connections. This feature is available in UNIX only in this release. All bug fixes from 7.4.1 are included in 7.5.0. See the Version History for a complete list of changes. Condor 7.5.0 binaries and source code are available from our Downloads page.

(December 29, 2009) Ordnance Survey Ireland Maps with Condor
Ordnance Survey Ireland deploys Condor as one of many technologies to build digital maps of Ireland.

(December 21, 2009) Condor 7.4.1 released!
The Condor Team is pleased to announce the release of Condor 7.4.1. This release patches a security vulnerability and includes many fixes for bugs found in 7.4.0. See the Version History for a complete list of changes. Condor 7.4.1 binaries and source code are available from our Downloads page.

(December 21, 2009) Condor 7.2.5 released!
The Condor Team is pleased to announce the release of Condor 7.2.5. This release patches a security vulnerability and includes a few fixes for bugs found in 7.2.4. See the Version History for a complete list of changes. Condor 7.2.5 binaries and source code are available from our Downloads page.

(November 23, 2009) Purdue's Condor-based DiaGraid named top 100 IT project
Purdue's Condor-based DiaGrid was named a Top-100 IT project of 2009 by Network World. DiaGrid has 177 teraflops of capacity.

(November 9, 2009) Condor 7.4.0 released!
The Condor Team is pleased to announce the release of Condor 7.4.0. This first release in a new stable series includes all new features added in the 7.3 development series. See the Version History for a complete list of changes. Condor 7.4.0 binaries and source code are available from our Downloads page.

(October 9, 2009) The Condor project will help with the workflows
generated for both data analysis and visualization efforts with XD award winners: University of Tennessee (see the press release) and the Texas Advanced Computing Center (TACC) at the University of Texas at Austin (as well as this press release). These TeraGrid eXtremeDigital Resource (XD) awards from the NSF will enable a center for Remote Data Analysis and Visualization (RDAV) research.

(September 16, 2009) Condor 7.3.2 released!
The Condor Team is pleased to announce the release of Condor 7.3.2. This release improves the behavior of the checkpoint server in mixed 32/64 bit architecture pools, provides a new tool called condor_ssh_to_job to allow interactive debugging of running jobs, some performance enhancements, lazy log file processing for DAGMan jobs, plugins for utilizing a host's power management capabilities, and many other new features in addition to many bug fixes. Please see Version History for a complete list of changes. Condor 7.3.2 binaries and source code are available from our Downloads page.

(August 19, 2009) Red Hat CEO Jim Whitehurst singles out Condor
as code that adds value, in this eWeek.com article about Red Hat's innovative business model.

(July 30, 2009) Condor supports DiaGrid at Purdue University,
a recipient of a Campus Technology Innovators Award. This Campus Technology article describes each of the award winners. Congratulations to Purdue and all contributors to DiaGrid!

(June 25, 2009) Condor 7.2.4 released!
The Condor Team is pleased to announce the release of Condor 7.2.4. This is a bugfix release to the stable series of Condor. See the Version History for a complete list of changes. Condor 7.2.4 binaries and source code are available from our Downloads page.

(May 20, 2009) Condor 7.3.1 released!
The Condor Team is pleased to announce the release of Condor 7.3.1. This release dramatically improves the performance of DAGMan for large dags. This is the first release with preview support for a multi-threaded collector, which is useful for large pool of machines with high-latency links to the collector. There are my other smaller bug fixes. See the Version History for a complete list of changes. Condor 7.3.1 binaries and source code are available from our Downloads page.

(May 12, 2009) Condor 7.2.3 released!
The Condor Team is pleased to announce the release of Condor 7.2.3. This release adds standard universe support for Debian 5.0 on x86_64. It also fixes a memory leak in the collector that has affected many users. Other bug fixes include file descriptor leaks in the schedd, encryption working with parallel jobs, and remote attributes in Condor-C job ads. See the Version History for a complete list of changes. Condor 7.2.3 binaries and source code are available from our Downloads page.

(April 14, 2009) Condor 7.2.2 released!
The Condor Team is pleased to announce the release of Condor 7.2.2. This release includes a new full port to Debian 5.0 x86 and a clipped port to Debian 5 x86_64. Also, it includes a large number of bug fixes in the Hibernation code as well as the SOAP interface, among other systems. This release has also been made to be forward compatible with the up and coming 7.3 release, when using CCB (which will be detailed in the next 7.3 release). See the Version History for a complete list of changes. Condor 7.2.2 binaries and source code are available from our Downloads page.

(March 16, 2009) International Summer School on Grid Computing 2009
The International Summer School on Grid Computing 2009, will be in July 2009 in Sophia Antipolis, Nice, France. It's a two-week hands-on summer school course in grid technologies. You'll get a chance to learn a lot of in-depth material not only about various grid technologies, but about the principles that underlie them and connect them together. The school will include talks from well-known grid experts in deploying, using, and developing grids. Hands-on laboratory exercises will give participants experience with widely used grid middleware. More Information

(February 24, 2009) Condor 7.3.0 Released!
The Condor Team is pleased to announce the release of Condor 7.3.0. This development release contains all bug fixes from the 7.2.1 stable release plus new features, including improved support for private networks, scalability, controlling cpu affinity, DAGMan enhancements, and more. See the version history for a detailed list of changes. Condor 7.3.0 binaries and source code are available from our downloads page.

(February 24, 2009) NCSA reports on the Vulnerability Assessment project
This NCSA news release highlights the work of Jim Kupsch, working for the SDSC and the UW-Madison Vulnerability Assessment project. The project performs independent security audits of grid computing codes such as Condor and MyProxy.

(February 20, 2009) Condor 7.2.1 Released!
The Condor Team is pleased to announce the release of Condor 7.2.1. This release addresses a handful of critical Windows-specific problems that were discovered after the release of Condor 7.2.0. This release also adds a native clipped port to Debian 5.0 (Lenny), support for the gfortran compiler in standard universe, support for standard output and error files larger than 2GB, and several other bug fixes. See the version history for a detailed list of changes. Condor 7.2.1 binaries and source code are available from our downloads page.

(February 13, 2009) CXOtoday.com overview of Condor
This CXOtoday.com article gives an overview of Condor, noting that Condor scales from small to large use cases.

(December 23, 2008) Condor 7.2.0 released
The Condor Team is pleased to announce the release of Condor 7.2.0. This first release in a new stable series contains all the new features from the 7.1.X development series in addition to numerous bug fixes. See our Release Notes for more details. As usual, binaries and source code are available from our Downloads page.

(November 18, 2008) Condor helps Purdue and IU work together
This HPCwire article presents Indiana University's entrance into Purdue's national computing grid, Diagrid, which uses Condor.

(November 13, 2008) Condor 7.1.4 released
The Condor Team is pleased to announce the release of Condor 7.1.4. This release in the development series contains the bug fixes from the v7.0.5 release, including the security related patches. In addition, several new features have been added such as preliminary support for "green computing", dynamic startd provisioning, improvements to the "VM Universe", improved event log rotation, and more. See our Release Notes for more details. As usual, binaries and source code are available from our Downloads page.

(October 7, 2008) Condor 7.1.3 released
The Condor Team is pleased to announce the release of Condor 7.1.3. This release in the development series contains the bug fixes from the v7.0.5 release, including the security related patches. In addition, several new features have been added such as Concurrency Limits (for management of resources such as floating software licenses), IBM Blue Gene support, profile management on Windows, and more. See our Release Notes for more details. As usual, binaries and source code are available from our Downloads page.

(October 7, 2008) Condor version 7.0.5 and 6.8.9 released
The Condor Team announces the release of Condor 7.0.5. This release contains many bug fixes and some improvements to error handling of Local Universe jobs. Note that some of the bug fixes are security-related; therefore, we recommend sites either upgrade Condor, or restrict permissions on who is allowed to submit Condor jobs to trusted users. Bug fixes that are security related are clearly marked in the Bugs Fixed section of the Release Notes, with a description of the potential security impact. The Condor Project believes in the full disclosure of information, and therefore publishes complete vulnerability details. However, in order to give an adequate upgrade window for production installations, we will delay posting the full vulnerability details fixed in this release for 30 days (until the week of November 3rd 2008). In addition, we took just the security bug fixes in v7.0.5 and back-ported them to v6.8; this effort has been released as version 6.8.9. Binaries for both releases, as well as sources for v7.0.5, are available from our Downloads page.

(September 10, 2008) "UW scientists play key role in largest physics experiment to date"
An article at The Capital Times briefly mentions Professor Livny and the Condor Project's work with the Large Hadron Collider. On Professor Livny's work, Associate Dean Terry Millar said, "The computational contributions from UW are pretty profound."

(August 20, 2008) Condor 7.1.2 released
The Condor Team is pleased to announce the release of Condor 7.1.2. This release in the development series includes bug fixes to the pulled 7.1.1 release. Condor 7.1.1 binaries and source code are available from our Downloads page.

(July 25, 2008) Condor 7.1.1 pulled
The Condor Team has pulled Condor 7.1.1 from the web due to several problems with it (a bad memory leak in the startd, and authentication problems under Windows). We plan to release 7.1.2 within a week to address these problems. In the mean time, you can download 7.1.0 from our Downloads page.

(July 23, 2008) Condor 7.0.4 Released!
The Condor Team is pleased to announce the release of Condor 7.0.4. This release fixes a problem with DENY lists in the authorization policy that could allow access when it should be denied. Additional changes include guarding against administrative tools cleaning up in-use files in the system's temporary directory and improving memory usage in the collector. Bugs fixed on Windows include daemons failing to start and crashes related to Condor-C and parallel jobs. See the version history for a complete list of bugs that have been fixed. Condor 7.0.4 binaries and source code are available from our downloads page.

(July 15, 2008) Pegasus to support work at the National Human Genome Research Institute
The NSF funded Pegasus Workflow Management System, created by researchers at University of Southern California Information Sciences Institute (ISI) in collaboration with the Condor Project, has been chosen to support workflow-based analysis for the coordinating center that links genomic and epidemiologic studies. More information has been released by ISI.

(July 15, 2008) Condor 7.1.1 released!
The Condor Team is pleased to announce the release of Condor 7.1.1. This release in the development series includes all new features added in the 7.0 stable series. See the version history section of the 7.1 manual for a complete list of changes. Condor 7.1.1 binaries and source code are available from our Downloads page.

(June 23, 2008) Condor 7.0.3 Released!
The Condor Team is pleased to announce the release of Condor 7.0.3. This release fixes a bug in 7.0.2 which resulted in very poor performance in some situations. Therefore, we recommend that users of 7.0.2 upgrade to 7.0.3 as soon as it is convenient. See the version history for a complete list of bugs that have been fixed. Condor 7.0.3 binaries and source code are available from our downloads page.

(June 10, 2008) European Condor Week 2008
European Condor Week 2008 will take place 21-24 October in Barcelona, Spain, and will be hosted by Universitat Autonoma de Barcelona. Check out the European Condor Week 2008 web page for more information. If you are interested in giving a talk and sharing your experiences please email EUCondorWeek@caos.uab.es.

(June 10, 2008) Condor 7.0.2 Released!
The Condor Team is pleased to announce the availability of Condor 7.0.2. This release is the latest in our stable series, and contains a large number of bug fixes. This release also adds an improved permissions model on Condor's EXECUTE directory on Unix platforms, and support for building Condor on FreeBSD 7. See the version history for a complete list of changes. Condor 7.0.2 binaries and source code are available from our download page.

(June 6, 2008) Condor Week 2008 Videos
Videos for five of the tutorials given at Condor Week 2008 are now available for download. The tutorials are: Using Condor: An Introduction, Administrating Condor, Condor Administrator's How-to, Virtual Machines in Condor, and Building and Modifying Condor.

(May 28, 2008) Martin Banks editorial: "The Parallel Bridge"
This ITPRO editorial discusses HTC as the future for parallel business and commerce calculations, and references a collaboration between IBM labs and the Condor Project to bring HTC to the Blue Gene supercomputer.

(October 22, 2007) "Clemson University upgrades to supercomputer"
GreenvilleOnline.com reports, "Condor and the new Palmetto Cluster enable Clemson faculty to do faster and deeper research. The technology opens doors to a realm where no Clemson researcher could go before -- and research grants dollars not accessible without the new supercomputing power."

(April 1, 2008) Condor 7.1.0 released!
The Condor Team is pleased to announce the release of Condor 7.1.0 (not to be confused with our recent stable series release 7.0.1). This development series release introduces several new features. The condor_startd can be configured to fetch jobs from other sources using a simple plug-in mechanism. A new daemon condor_job_router has been added for dynamically transforming suitable Vanilla Universe jobs into Grid Universe jobs. DAGMan's handling of rescue DAGs has been improved to better support nested DAGs. DAGIrl has been added to better support Irl workflows in the beginning of April. See the Version History for a complete list of changes. Condor 7.1.0 binaries and source code are available from our Downloads page.

(March 29, 2008) Nature publishes virus views enabled using Purdue's Condor flock
As published in the Feb 28th issue of Nature, a team led by a Purdue University researcher has achieved images of a virus in detail two times greater than had previously been achieved. This breakthrough was enabled through the use of Purdue's Condor distributed computing grid, which comprises more than 7,000 computers.

(March 8, 2008) Milwaukee Institute seeks to build computational power
Private sector leaders in Milwaukee and southeastern Wisconsin are trying to bridge the gap between universities and businesses through more effective use of computing and scientific resources, and their vehicle is the new Milwaukee Institute, a non-profit organization that is building a cyber infrastructure of shared, grid-based computing that leverages Condor Project technology.

(February 27, 2008) Condor 7.0.1 released!
The Condor Team is pleased to announce the release of Condor 7.0.1. This release introduces several fixes for bugs, including security-related problems and a new port to Redhat Enterprise Linux 5.0. See the Version History for a complete list of changes. Condor 7.0.1 binaries and source code are available from our Downloads page.

(January 22, 2008) Condor 7.0.0 released!
The Condor Team is pleased to announce the release of Condor 7.0.0. This first release in a new stable series includes all new features added in the 6.9 development series. See the Version History for a complete list of changes. Condor 7.0.0 binaries and source code are available from our Downloads page.

(December 20, 2007) Condor 6.8.8 released!
The Condor Team announces the release of Condor 6.8.8. Condor 6.8.8 introduces several fixes for bugs, including a security-related problem. See the Version History for a complete list of changes. Condor 6.8.8 is available from our Downloads page.

(December 4, 2007) Red Hat Enterprise MRG distributed computing platform announced
Today Red Hat announced Red Hat Enterprise MRG, a distributed computing platform offering that utilizes Condor for workload management. "The University of Wisconsin is pleased to work with Red Hat around the Condor project," said Terry Millar, Associate Dean at the UW-Madison Graduate School.

(November 30, 2007) Condor 6.8.7 released!
The Condor Team announces the release of Condor 6.8.7. Condor 6.8.7 introduces several fixes for bugs. See the Version History for a complete list of changes. Condor 6.8.7 is available from our Downloads page.

(November 28, 2007) Condor 6.9.5 released!
The Condor Team announces the release of Condor 6.9.5. Condor 6.9.5 highlights include numerous scalability and performance improvements, updates between the starter and startd which allow more accurate job eviction policies, enhancements to Condor's privilege separation, and numerous bug fixes including a critical bug in standard universe introduce in 6.9.4 that could result in data corruption of binary files. See the Version History and Release Notes for further details and a complete list of changes. Condor 6.9.5 is available from our Downloads page.

(November 19, 2007) Condor-G and GT4 Tutorial
Jan Ploski offers this tutorial documentation for Condor-G GT4 administrators and end users (those submitting jobs).

(November 6, 2007) Purdue University becomes an HPC-Ops center
As described in the HPCwire press release, Purdue University is to become one of five High Performance Computing Operations (HPC-Ops) centers within the NSF-funded Teragrid project. Purdue has the largest academic Condor pool in the world, which provides computing cycles to Teragrid.

(October 22, 2007) "Clemson corrals idle computers"
"When all the Clemson University students are tucked in for the night, hundreds of desktops across the campus are turned on to create a supercomputing grid that can rapidly process large amounts of data." "Her request for a series of computations that would have taken 10 years on a regular desktop computer was completed in just a few days."

(October 19, 2007) Serious bug in v6.9.4 impacts standard universe jobs
A bug introduced in the most recent developer release, Condor v6.9.4, can cause jobs running in Condor's Standard Universe to write corrupt data. The Condor Team has written a patch that will be included in v6.9.5 which is forthcoming; if you need the patch sooner, please contact us. This bug only impacts jobs that write binary (non-ASCII) files and are submitted to the Standard Universe.

(October 15, 2007) High Throughput Computing Week
High Throughput Computing Week in Edinburgh is a four-day event in November 2007 that will discuss several aspects of high throughput computing (HTC), including transforming a task so it can benefit from HTC and choosing technologies to deliver HTC, as well as trying some HTC systems in-person. Condor will be one of the four technologies discussed. More Details

(Sept 18, 2007) Condor 6.8.6 released!
The Condor Team announces Condor 6.8.6. This new stable series release fixes numerous bugs, faster submission to Globus WS-GRAM, and also adds official support for Microsoft Vista and MacOS 10.4 on Intel CPUs. See the Version History and Release Notes for further details. Condor 6.8.6 is available from our Downloads page.

(September 14, 2007) "Cardiff supplies UK National Grid Service with first Windows Condor Pool"
Cardiff University announces the availability of a 1,000 processor Condor Pool to the UK National Grid Service. "Use by the University's researchers has grown considerably in this time and has saved local researchers years of time in processing their results." "Using Gasbor to build a model of a typical Tropoelastin molecule takes 30 hours. Using Condor the same simulation ran in just two hours."

(August 29, 2007) Condor 6.9.4 released!
The Condor Team announces the release of Condor 6.9.4. Condor 6.9.4 highlights include a new implementation of Quill that can store more information than ever before into a relational database, a new job type (universe) enabling jobs to utilize VMWare and Xen virtual machines, and some performance improvements. See the Version History and Release Notes for further details. Condor 6.9.4 is available from our Downloads page.

(July 12, 2007) More secure configuration for PostgreSQL and Quill documented
When Quill was first developed, it was designed to work with older versions of the PostgreSQL database server. Newer versions of PostgreSQL have stronger security features, which can be enabled in the PostgreSQL configuration, requiring no changes to the Quill daemon. We recommend that all Quill sites upgrade to the latest version of PostgreSQL (8.2), and make these easy changes to their PostgreSQL configuration. The consequences of not doing so mean that any user who can sniff the network between the Quill daemon and the PostgreSQL server can obtain the Quill database password, and make changes to the Quill database. This can change the output of condor_q and condor_history, but cannot otherwise impact Condor's correctness or security. Otherwise unauthorized users cannot use this database password to run jobs or mutate Condor's configuration. A second problem with the previously recommended configuration was that any user with the publicly-available read-only Quill PostgreSQL password could create new tables in the database and store information there. While this does not effect the running of Condor in any way, sites may view that as a security problem. As of Condor 6.8.6 and 6.9.4, the Condor manual has been updated to describe the more secure installation of PostgreSQL, which remedy both of the above problems. These changes include the following: Change the authentication method (the final field) in the pg_hba.conf file from "password" to "md5". Restarting PostgreSQL is then needed for this to take effect. Only allow the quillwriter account to create tables. To do this, run the following two SQL commands as the database owner. REVOKE CREATE on SCHEMA public FROM PUBLIC; GRANT CREATE on SCHEMA public to quillwriter;

(July 5, 2007) Durham University Department of Geography flies with Condor
In 2006 the Durham University Department of Geography began examining ways of increasing the speed at which research results could be obtained from geophysical modelling simulations. After a period of testing lasting over 6 months, the Department of Geography has successfully implemented a distributed computing system built upon the Condor platform. Since its implementation, the Condor distributed computing network has provided a unique facility for spatial modelling which is particularly suited to Monte Carlo approaches. Thanks to the processing power offered by the Condor network, members of the Catchment, River and Hillslope Science (CRHS) group have developed methods of ultra-high resolution image processing and remote sensing which are pushing the traditional boundaries of ecological monitoring at both catchment and local scales.

(June 14, 2007) Condor 6.9.3 released!
The Condor Team is relieved to announce the release of Condor 6.9.3. Condor 6.9.3 has significant performance and scalability improvements and many other new features. See the Version History and Release Notes for further details. Condor 6.9.3 is available from our Downloads page.

(May 17, 2007) Condor 6.8.5 released!
The Condor Team is pleased to announce the release of Condor 6.8.5. Condor 6.8.5 is primarily a bugfix release. See the Version History and Release Notes for further details. Condor 6.8.5 is available from our Downloads page.

(May 2007) BAE Systems incorporating Condor into their SOCET SET v5.4 release
BAE Systems produces geospatial exploitation tools. The GXP Mosaic News and Updates hints at using Condor for complex TFRD decompression and VQ compression tasks, as well as the multi-CPU processing of orthomosaics.

(May 3, 2007) Condor Week 2007 Concludes
After four days of presentations, tutorials, and discussion sessions, Condor Week 2007 came to a close. Red Hat presented plans to integrate Condor into Red Hat and Fedora distributions, and to provide enterprise-level support for Condor installations. Government labs reported results from their deployment efforts over the past year; for example, a production Condor installation at Brookhaven National Labs consisting of over 4800 machines ran 2.8 million jobs in the past 3 months, delivering 6.2 million wallclock hours to over 400 scientists. IBM reported on an ongoing project to bring Condor and Blue Gene technologies together, in order to enable High Throughput style computing on IBM's popular Blue Gene supercomputer. The Condor Team reported on the scalability enhancements in the Condor 6.9 development series. Check out the 35+ presentations delivered this week.

(April 30, 2007) Condor helps Clemson University researchers
GRIDtoday reports in the article "Clemson Researchers Get Boost From Condor" that Clemson University has deployed a campus-wide computing grid built on Condor. "'The Condor grid has enabled me to conduct my research, without a doubt,' [Assistant Professor] Kurz said. 'Before using the campus grid, I was completely without hope of completing the computational studies that my research required. As soon as I saw hundreds of my jobs running on the campus grid, I started sending love notes to the Condor team at Clemson.'"

(April 10, 2007) Condor 6.9.2 released!
The Condor Team is pleased to announce the release of Condor 6.9.2. Condor 6.9.2 contains all bugfixes from the recent 6.8.4 release and adds several new features. See the Version History and Release Notes for further details. Condor 6.9.2 is available from our Downloads page.

(April 3, 2007) International Summer School in Grid Computing
The fifth in the highly successful series of International Summer Schools in Grid Computing will be held at Gripsholmsviken Hotell & Konferens of Mariefred, Sweden, near Stockholm, from 8th to 20th July 2007. The school builds on the integrated curriculum developed over the last few years which brings together the leading grid technologies from around the world, presented by leading figures, and gives students a unique opportunity to study these technologies in depth side by side. More information

(March 15, 2007) Condor Week 2007 Schedule posted
A first draft of the Condor Week 2007 schedule has been posted on the Condor/Paradyn Week 2007 page. The schedule has not been finalized, but it is close.

(February 5, 2007) Condor 6.8.4 released!
The Condor Team is pleased to announce the release of Condor 6.8.4. Condor 6.8.4 is primarily a bugfix release, including fixes in Quill, DAGMan, and the "local universe". See the Version History and Release Notes for further details. Condor 6.8.4 is available from our Downloads page.

(January 15, 2007) Condor used in search for alternate fuel sources
GRIDtoday reports in the article "Protein Wranglers" that NCSA researchers are using Condor-G to streamline their workflow. "They were spending quite a bit of time doing relatively trivial management tasks, such as moving data back and forth, or resubmitting failed jobs,' says Kufrin. After gaining familiarity with the existing 'human-managed' tasks that are required to carry out lengthy, computationally intensive simulations of this nature, the team identified Condor-G, an existing, proven Grid-enabled implementation of Condor, as a possible solution."

(January 10, 2007) Condor 6.9.1 released!
The Condor Team is pleased to announce the release of Condor 6.9.1. Condor 6.9.1 contains all bugfixes from the recent 6.8.3 release and adds several new features, including numerous performance improvements and improved GCB support. See the Version History and Release Notes for further details. Condor 6.9.1 is available from our Downloads page.

(January 8, 2007) Condor 6.8.3 released!
The Condor Team is pleased to announce the release of Condor 6.8.3. Condor 6.8.3 fixes a number of bugs, adds several minor features, and adds clipped support for SuSE Linux Enterprise Server 9 on PowerPCs. See the Version History and Release Notes for further details. Condor 6.8.3 is available from our Downloads page.

(December 2006) "Purdue doubles the work life of computers with overtime"
Purdue University distributes its computing jobs across the university using Condor. "At Purdue, we're harvesting computer downtime and putting it to good use" says Gerry McCartney, Purdue's interim vice president for information technology and chief information officer.

(November 2006) Condor in production at Banesto, a major bank in Spain
Banesto is Spain's third largest bank in volume of managed resources, and caters to over 3,000,000 customers. With the help of Cediant, Banesto has installed a Condor cluster to replace the work previously performed by a monolithic SMP. As a result, the time it takes to evaluate each portfolio has been reduced by 75%. Read more in an announcement made on the condor-users email list.

(November 2006) Condor's role in "The Wild"
You may have heard about the fantastic computer animation in "The Wild", a Disney film that appeared in theaters last Spring and was recently released on DVD. What you may not have heard is that Condor was used to assist with the tremendous effort of managing over 75 million renders. Read a nice letter we received from Leo Chan and Jason Stowe, film Technology Supervisor and Condor Lead, respectively.

(October 2006) Linux Journal Magazine publishes article "Getting Started with Condor"
Author Irfan Habib wrote in Linux Journal magazine his experience getting started with Condor. He concludes, "Condor provides the unique possibility of using our current computing infrastructure and investments to target processing of jobs that are simply beyond the capabilities of our most powerful systems... Condor is not only a research toy, but also a piece of robust open-source software that solves real-world problems."

(October 26, 2006) Condor 6.9.0 released!
The Condor Team is pleased to announce the release of Condor 6.9.0. Condor 6.9.0 is the first release of a new development series based on the 6.8.x stable code. The primary new feature in 6.9.0 is initial support for privilege separation using glexec. See the Version History and Release Notes for further details. As a development release, 6.9.0 is not recommended for production use. Condor 6.9.0 is available from our Downloads page.

(October 16, 2006) Condor 6.8.2 released!
The Condor Team is pleased to announce the release of Condor 6.8.2. Condor 6.8.2 release fixes a number of bugs and adds support for x86_64 standard universe. See the Version History and Release Notes for further details. Condor 6.8.2 is available from our Downloads page.

(September 2006) UW-Madison plays a central role in "Open Science Grid" (OSG)
The National Science Foundation (NSF) and the Department of Energy's (DOE) Office of Science announced today that they have joined forces to fund a five-year, million program to operate and expand upon the two-year-old national grid. This project collectively taps into the power of thousands of processors distributed across more than 30 participating universities and federal research laboratories. UW-Madison computer scientist Miron Livny, leader of the Condor Project, is principal investigator of OSG and will be in charge of building, maintaining, and coordinating software activities. [OSG Press Release][DDJ Article][Badger Herald Article]

(September 19, 2006) Condor 6.8.1 released!
The Condor Team is pleased to announce the release of Condor 6.8.1. Condor 6.8.1 release fixes a number of important bugs, including some potential security vulnerabilities. All users are encouraged to upgrade immediately. See the Version History and Release Notes for further details. Condor 6.8.1 is available from our Downloads page.

(September 2006) "Setting up a Condor cluster" at Linux.com
Author M. Shuaib Khan offers a brief introduction to setting up Condor at Linux.com. He writes, "Condor is a powerful yet easy-to-use software system for managing a cluster of workstations."

(July 2006) IBM publishes article "Manage grid resources with Condor web services"
IBM developerWorks has published a very nice tutorial on using Condor's web services interface (Birdbath). Jeff Mausolf, IBM Application Architect, states "This tutorial is intended to introduce the Web services interface of Condor. We'll develop a Java technology-based Web services client and demonstrate the major functions of Condor exposed to clients through Web services. The Web services client will submit, monitor, and control jobs in a Condor environment."

(July 2006) Condor 6.8.0 released!
The Condor Team is pleased to announce the release of Condor 6.8.0. Condor 6.8.0 begins a new stable series of Condor and contains the new features and bug fixes from the Condor 6.7 development series. See the Version History and Release Notes for further details. Condor 6.8.0 is available from our Downloads page.

(June 2006) Condor 6.7.20 released!
The Condor Team is pleased to announce the release of Condor 6.7.20. This release features many bugfixes and new features, including a variety of built-in functions that can be used in ClassAds and a unified mapfile providing more flexible identity management when using strong authentication. See the Version History and Release Notes for further details. Condor 6.7.20 is available from our Downloads page. We believe 6.7.20 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(June 2006) Condor used to research genetic diseases
"Sleeping Computers Unravel Genetic Diseases." "Now, with the help of the Condor middleware system, Superlink-Online is running in parallel on 200 computers at the Technion and 3,000 at the University of Wisconsin-Madison." "'Over the last half year, dozens of geneticists around the world have used Superlink-Online, and thousands of runs – totaling 70 computer years – have been recorded,' says Professor Assaf Schuster, head of the Technion’s Distributed Systems Laboratory, which developed Superlink-Online’s computational infrastructure."

(May 2006) "UW holds Condor meeting"
The Wisconsin State Journal briefly covered Condor Week 2006. "Condor gives UW-Madison a real edge in any competitive research, including physics, biotechnology, chemistry and engineering, said Guri Sohi, computer sciences department chairman."

(May 2006) Registration open for European Condor Week 2006, June 26-29, Milan, Italy
Registration is now open for European Condor Week 2006. This second European Condor Week is a four day event that gives Condor collaborators and users in the chance to exchange ideas and experiences, learn about latest research, signup for detailed tutorials, and celebrate 10 years of collaboration between the University of Wisconsin-Madison Condor Team and the Italian Instituto Nazionale di Fisica Nucleare (INFN - the National Institute of Nuclear Physics). Please join us!

(May 2006) Condor 6.7.19 released!
The Condor Team is pleased to announce the release of Condor 6.7.19. This release features an important security fix to checkpoint server, submission to PBS and LSF systems, ClassAd functions, and many other improvements. See the Version History and Release Notes for further details. Condor 6.7.19 is available from our Downloads page. We strongly recommend sites running earlier versions of Condor in the 6.7 development series upgrade to 6.7.19 as soon as feasible. We believe 6.7.19 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(April 2006) A Peek into Micron's Grid Infrastructure
In an interview for GRIDtoday, Brooklin Gore discusses Micron's Condor-based grid. Gore's comments included "We have 11 'pools' (individual grids, all connected via a LAN or WAN) comprising over 11,000 processors at seven sites in four countries. We selected the Condor High Throughput Computing system because it ran on all the platforms we were interested in, met our configuration needs, was widely used and open source yet well supported."

(March 2006) Condor 6.7.18 released!
The Condor Team is pleased to announce the release of Condor 6.7.18. This release features important security fixes and many other improvements. See the Version History and Release Notes for further details. Condor 6.7.18 is available from our Downloads page. We strongly recommend sites running earlier versions of Condor in the 6.7 development series upgrade to 6.7.18 as soon as feasible. We believe 6.7.18 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(March 2006) Condor 6.6.11 released!
The Condor Team is pleased to announce the release of Condor 6.6.11. Version 6.6.11 is strictly for bug and security fixes. See the Version History and Release Notes for details. Condor 6.6.11 is available from our Downloads page.

(March 2006) Simulating Supersymmetry with Condor
An article in Science Grid This Week describes how Condor combined with resources from the Open Science Grid and the Univ of Wisconsin Condor Pool provided over 215 CPU years in less than two months towards a discovery eagerly anticipated by particle physicists around the world.

(March 2006) GAMS and Condor
A recent advertisement for GAMS, (a high-level modeling system for mathematical programming problems) features Condor.

(March 2006) Announcing the International Summer School on Grid Computing 2006
If you are interested in learning about grid technology (including Condor) from leading authorities in the field, we encourage you to investigate the International Summer School on Grid Computing. The School will include lectures on the principles, technologies, experience and exploitation of Grids. Lectures will also review the research horizon and report recent significant successes. Lectures will be given in the mornings. In the afternoons the practical exercises will take place on the equipment installed at the School site in Ischia, Italy (near Naples). The work will be challenging but rewarding.

(February 2006) Condor 6.7.17 released!
The Condor Team is pleased to announce the release of Condor 6.7.17. This release features direct support for running backfill computations on unused nodes, parallel job support in DAGMan, improvements to condor_history, and many other improvements. See the Version History and Release Notes for further details. Condor 6.7.17 is available from our Downloads page. We believe 6.7.17 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(February 2006) Digital Aerial Solutions (DAS) uses Condor
to help increase image processing capacity, as detailed in this Leica Geosystems Geospatial Imaging press release.

(February 2006) "Communicating outside the flock, Part 2: Integrate grid resources with Condor-G plus Globus Toolkit" at IBM's developerWorks
IBM IT Architect Jeff Mausolf writes, "The Globus Toolkit provides a grid security infrastructure. By augmenting this infrastructure with the job submission, management, and control features of Condor, we can create a grid that extends beyond the Condor pool to include resources controlled by a number of resource managers, such as LoadLeveler, Platform LSF or PBS."

(February 2006) Condor 6.7.16 released!
The Condor Team is pleased to announce the release of Condor 6.7.16. This is a bugfix release for 6.7.15. Together, these two releases include a faster negotiation protocol, a clipped port for PowerPC under YellowDog Linux 3.0, and many other improvements. See the Version History and Release Notes for details. Condor 6.7.16 is available from our Downloads page. We believe 6.7.16 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(January 2006) New ETICS project to improve quality
The goal of the ETICS (eInfrastructure for Testing, Integration and Configuration of Software) project is to improve the quality of Grid and distributed software by offering a practical quality assurance process to software projects, based on a build and test service. Please see the news release.

(January 2006) GLOW Brings Grids to Campus
Read about GLOW in Science Grid This Week.

(December 2005) Formation of a Condor Enterprise Users Group
Enterprise users of Condor are joining together to form a group. If you are a business user of Condor you may be interested to learn that an effort is underway to form a Condor Enterprise Users Group. The goal of this community is to: 1- Focus on the unique needs of enterprise/commercial/business users of Condor; 2- Share best practices in the enterprise Grid computing space; 3- Collaborate on Condor features needed to better support the enterprise space; 4- Discuss ways to support the Condor project for enterprise-focused activities. To learn more, read the announcement posted to the condor-users list. Subscribe to the group at mail-lists/.

(December 2005) Condor 6.7.14 released!
The Condor Team is pleased to announce the release of Condor 6.7.14. Highlights include grid universe support for NorduGrid and Unicore, system job policy expressions, and job start time deferral. Users of prior version of 6.7.x are encouraged to upgrade. See the Version History and Release Notes for details. Condor 6.7.14 is available from our Downloads page. We believe 6.7.14 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(December 2005) "Communicating outside the flock, Part 1: Condor-G with Globus" at IBM's developerWorks
IBM IT Architect Jeff Mausolf writes, "In this article, we will look at how you can use Condor to simplify the tasks associated with job submission, monitoring, and control in a Globus environment. In Part 2, we will look at how you can use Condor's matchmaking to make intelligent scheduling decisions based on job requirements and resource information, and then leverage the remote resource access capabilities provided by Globus to submit jobs to resources that are not part of the Condor pool." Also available is "Part 2: Integrate grid resources with Condor-G plus Globus Toolkit."

(November 2005) " Peak Perfomance"
This article by Robert Regis Hyle on the National Underwriter Company technical news page highlights grid usage for life insurance and annuity carriers.

(November 2005) "Building a Linux cluster on a budget" from Linux.com
Article author Bruno Gonçalves says "By adding the Condor clustering software we turn this set of machines into a computing cluster that can perform high-throughput scientific computation on a large scale."

(November 2005) Condor 6.7.13 released!
The Condor Team is pleased to announce the release of Condor 6.7.13. Highlights include Generic Connection Brokering for traversing firewalls and private networks, Quill on Windows, and a new clipped port for Red Hat Enterprise Linux 3 on IA64. Users of prior version of 6.7.x are encouraged to upgrade. See the Version History and Release Notes for details. Condor 6.7.13 is available from our Downloads page. We believe 6.7.13 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(October 2005) Press release from Canadian environmental minister
entitled "Minister Dion Launches WindScope To Support Government's Wind Energy Commitment". The new WindScope software that utilizes Condor allows users to determine the ideal location to install wind turbines.

(October 2005) See Jeff Vance's article "Finding the Business Case for Grids"
in the CIO Update for a discussion of The Hartford's recent work with Condor. Chris Brown, director of advanced technologies at Hartford Life said, "But the alternatives were expensive, and the ability to scale with a grid was much better," and "It wasn't the principal reason we for building our grid, but versus a more conventional solution, the grid has saved us millions of dollars."

(September 2005) Condor 6.7.12 released!
The Condor Team is pleased to announce the release of Condor 6.7.12. This version is being released to fix several critical bugs in Condor 6.7.11. 6.7.11 was not widely advertised, but was available on our mirror site for a short period. Any users of 6.7.11, or any other prior version of 6.7.x are urged to upgrade. See the Version History and Release Notes for details. Condor 6.7.12 is available from our Downloads page. We believe 6.7.12 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(September 2005) Condor 6.7.11 released!
The Condor Team is pleased to announce the release of Condor 6.7.11. This version is primarily for Quill. Quill maintains a read-only mirror of the job queue in a database, enabling faster and more powerful queries as well as reducing the load on the schedd. In addition, there were a number of bug fixes. See the Version History and Release Notes for details. Condor 6.7.11 contained several critical bugs and was pulled from the mirror site. Interested users should try 6.7.12 instead.

(September 2005) Korea's Grid Middleware Center uses Condor

(September 2005) " Reinventing Enterprise Technology"
This article in eWEEK.com by Peter Coffee discusses real problems and solutions to data and system challenges in academic and commercial research.

(August 2005) Read about "The Sweet Sound of Grid Computing"
in Brooklin Gore's article in Grid Today.

(August 2005) Grid Computing with Condor in the insurance industry
This cover story in TechDecisions for Insurance magazine profiles experiences of organizations in the insurance industry with Condor and grid computing.

(August 2005) Condor provides cycles to the TeraGrid at RCAC
This TeraGrid press release explains how the Rosen Center for Advanced Computing (RCAC) at Purdue University has opened up access to 11 teraflops of computing power to the TeraGrid community by using Condor.

(August 2005) Optena launches a Condor Knowledge Base and Support Site
Optena Corporation has recently announced on the Condor-Users Mail List the launching of a Condor Knowledge Base and Support web site, for use by the entire Condor community.

(August 2005) Condor 6.7.10 released!
The Condor Team is pleased to announce the release of Condor 6.7.10. This version is primarily for bug fixes, including a number of serious bugs the Windows port. Many of the bugs were recently introduced in the 6.7 development series, so users of the 6.6 stable series need not upgrade. Users of prior versions of 6.7.x are urged to upgrade. See the Version History and Release Notes for details. Condor 6.7.10 is available from our Downloads page. We believe 6.7.10 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(July 2005) the Rosen Center for Advanced Computing
Read about the Rosen Center for Advanced Computing (RCAC) at Purdue University in the Teragrid news release.

(July 2005) "Twenty Years of Condor" by Katie Yurkewicz highlights Condor.
In Science Grid This Week: "The Condor idea, which had its root in Livny's Ph.D. research on distributed computing systems, is that users with computing jobs to run and not enough resources on their desktop should be connected to available resources in the same room or across the globe."

(July 2005) Condor is even in the Wikipedia

(July 2005) Condor 6.7.9 released!
The Condor Team is pleased to announce the release of Condor 6.7.9. This version is primarily for the new parallel universe, but also includes many bug fixes and improvements to Condor-C. See the Version History and Release Notes for details. Condor 6.7.9 is available from our Downloads page. We believe 6.7.9 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(June 2005) Condor 6.6.10 released!
The Condor Team is pleased to announce the release of Condor 6.6.10. Version 6.6.10 is strictly for bug fixes. See the Version History and Release Notes for details. Condor 6.6.10 is available from our Downloads page.

(June 2005) Condor 6.7.8 released!
The Condor Team is pleased to announce the release of Condor 6.7.8. 6.7.8 is primarily for bug fixes, but includes some scalability additions for DAGMan and the Standard Universe. See the Version History and Release Notes for details. Condor 6.7.8 is available from our Downloads page. We believe 6.7.8 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases.

(June 2005) In the NetworkWorld newsletter
the article by Jennifer Stong-Michas highlights grid computing successes and difficulties, beginning with quotes from Hartford Life.

(June 2005) Alain Roy is in the news.
"Alain Roy: Providing Virtually Foolproof Middleware Access," by Katie Yurkewicz in Science Grid This Week profiles Condor staff member Alain Roy.

(May 2005) Read "Coraid in Hungarian Grid Project"
This article in Byte and Switch mentions that the Hungarian ClusterGrid Project is using Condor's flocking support.

(May 2005) GLOW
The Grid Laboratory of Wisconsin (GLOW) is in the news. Read about it in News@UW-Madison and the EurekAlert press release.

(May 2005) Condor 6.7.7 released!
The Condor Team is pleased to announce the release of Condor 6.7.7. 6.7.7 is primarily for improvements to the grid universe. It includes support for strong authentication and multiple users for the "condor" gridtype, and full support for the Globus Toolkit 4.0.0 release. See the Version History and Release Notes for details. Condor 6.7.7 is available from our Downloads page. We believe 6.7.7 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases. 6.7.6 users who are using the Globus Toolkit 4.0 are strongly urged to upgrade to 6.7.7.

(April 2005) Himani Apte
Graduate student Himani Apte is a finalist for the Anita Borg Memorial Scholarship sponsored by Google. Here is Google's press release. Congratulations!

(March 2005) Condor Week 2005
We recently held our annual Condor Week conference. A survey for attendees, photos, and presentations are now all available for your perusal.

(March 2005) the Render Queue Integration
Read about the Render Queue Integration on Cirque | Digital, LLC's Products web page. From the page "With GDI|Explorer you can submit, manage and prioritize the rendering of your 2D and 3D files directly on an unlimited number of processors using the powerful - yet free - Condor render queue. -- The power of all processors on your network is at your fingertips!"

(March 2005) "UW Condor project is a piece of CERN's massive grid computer"
at the Wisconsin Technology Network. "The University of Wisconsin's Condor software project will provide a component of a cutting-edge grid computing system at European research heavyweight CERN, the IDG news service reports." "After finding no commercial grid applications that satisfied all its needs, CERN took to cobbling together a system from a variety of sources, starting with the Globus Toolkit from the Globus Alliance and using the Condor project's scheduling software."

(March 2005) "CERN readies world's biggest science grid"
in Computerworld. "Instead, CERN based its grid on the Globus Toolkit from the Globus Alliance, adding scheduling software from the University of Wisconsin's Condor project and tools developed in Italy under the European Union's DataGrid project."

(March 2005) Condor 6.7.6 released!
The Condor Team is pleased to announce the release of Condor 6.7.6. It includes support for using the "grid" universe with resources managed by the beta releases of the Globus Toolkit 4.0, the Stork data movement server, and a high-availability daemon to provide backup central managers contributed by Technion - Israel Institute of Technology. See the Version History and Release Notes for details. Condor 6.7.6 is available from our Downloads page. We believe 6.7.6 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases. Users of previous 6.7 versions are urged to upgrade.

(March 2005) Condor 6.6.9 released!
6.6.9 is the latest release of our stable series. 6.6.9 contains several critical bug fixes and all users are encouraged to upgrade immediately. See the Version History and Release Notes for details. Condor 6.6.9 is available from our Downloads page.

(March 2005) Condor 6.7.5 released!
The Condor Team is pleased to announce the release of Condor 6.7.5. 6.7.5 is the fifth release of our development series, and is primarily a new feature release. Condor 6.7.5 includes the SOAP interface to some Condor daemons, a option to DAGMan to abort a DAG when a node fails with a specific error code, enhancements to the MPI universe in scheduling and requirements, and speed-ups in claiming large number of machines. See the Version History and Release Notes for details. Condor 6.7.5 is available from our Downloads page. We believe 6.7.5 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases. Users of previous 6.7 versions are urged to upgrade.

(February 2005) Condor 6.6.8 released!
6.6.8 is the latest release of our stable series. 6.6.8 is primarily a bug fix release. 6.6.8, and all future releases will no longer support Redhat Linux on IA64, Digital UNIX 4.0f, and Solaris 7. See the Version History and Release Notes for details. Condor 6.6.8 is available from our Downloads page.

(February 2005) "An eagle-eye view of the Condor project"
This article by Jeff Mausolf is on IBM's developerWorks web site. "Condor addresses both of these problem areas by providing a single tool that can manage a cluster of dedicated compute nodes and effectively harness otherwise wasted cycles from idle desktop workstations."

(February 2005) Hartford Life is in the news
The Hartford Financial Services Group is doing very well with Condor. See "Grid Computing At Hartford Life" by Tammy J. McInturff in the LOMA newsletter." Also, see "Analyze This", by Steve Dwyer, (in Insurance Networking News) mentions the Hartford Financial Services Group's deployment of Condor. "'Prior to the grid initiative, we had hit a ceiling with the level of horsepower we could deploy in running calculations through servers and desktops,' says Severino." And, in December 2004, see "Mother of Invention ", by Anthony O'Donnell, (in Insurance & Technology magazine) describes the Hartford Financial Services Group's deployment and use of Condor. "The [Condor] grid solution 'is actually more robust,' [CIO Vittorio Severino] says. 'The value is, No. 1, it just creates capacity; No. 2, it's a more stable environment; and then, No. 3, we enjoy the obvious cost savings.'"

(January 2005) "Using the GRID to improve the computation speed of electrical impedance tomography (EIT) reconstruction algorithms" (PDF) in Physiological Measurement
Authors Fritschy, Horesh, Holder, and Bayford presents an improvement to image quality generation (using Condor), that make clinical use of the images more practical. "Using the GRID middleware "Condor" and a cluster of 920 nodes, reconstruction of EIT images of the human head with a non-linear algorithm was speeded up by 25-40 times compared to serial processing of each image."

(December 2004) Condor 6.7.3 released!
6.7.3 is the fourth release of our development series. 6.7.3 is primarily a new feature release. 6.7.3 is the first release to fully support checkpointing on Linux distributions Fedora Core 1, 2, and 3. 6.7.3 also includes preliminary support for a new remote submission feature that will complement flocking and the grid universe. See the Version History and Release Notes for details. Condor 6.7.3 is available from our Downloads page. We believe 6.7.3 is fairly stable, but it is not recommended for production systems, unless you require checkpointing support for a Linux distribution not supported by our 6.6 releases. Users of previous 6.7 versions are urged to upgrade.

(November 2004) Condor Week 2005 announced
Condor Week 2005 will be the week of March 14th, 2005. We hope you can join us! More details...

(October 2004) "Solving Optimization Problems with Grid-Enabled Technologies".
Enrique Alba and Antonio J. Nebro discuss research efforts in ECRIM News.

(October 2004) Stork 0.9.1 released.
Support for Redhat 9 and Enterprise Linux 3 has been added to the Stork data placement scheduler. See the Stork home page for release notes and downloads.

(October 2004) Condor 6.6.7 released!
6.6.7 is the latest release of our stable series. 6.6.7 is primarily a bug fix release. New features include support for the Windows Firewall on Windows XP SP2. 6.6.7, and all future releases will no longer support HP-UX 10.20, Digital UNIX 4.0f, and Solaris 7. See the Version History and Release Notes for details. Condor 6.6.7 is available from our Downloads page.

(October 2004) Condor 6.7.2 released!
6.7.2 is the third release of our development series. 6.7.2 is primarily a bug fix release. New features include support for multiple collectors and better support for the Linux 2.6 kernel. 6.7.2, and all future releases (including 6.6 series releases) will no longer support HP-UX 10.20, Digital UNIX 4.0f, and Solaris 7. See the Version History and Release Notes for details. Condor 6.7.2 is available from our Downloads page. 6.7.2 is not recommended for production systems, but is believed to be relatively stable. Users of 6.7.0 and 6.7.1 should upgrade to 6.7.2.

(September 2004) UK Condor Week will be Oct 11-15th, 2004!
We are pleased to announce the inaugural United Kingdom (UK) Condor Week, a workshop for the Condor community, to be held at NeSC in Edinburgh, Scotland on October 11th to 15th 2004. Anyone who would like to take part should register by Oct 04, 2004. You can learn more on the conference web page.

(August 2004) Condor 6.7.1 released!
6.7.1 is the latest version of our current development release series. See the Version History and Release Notes for details. Condor 6.7.1 is available from our Downloads page.

(July 2004) Condor 6.6.6 released!
6.6.6 is the latest version of our current stable release series. See the Version History and Release Notes for details. Condor 6.6 is available from our Downloads page.

(May 2004) Condor 6.6.5 released!
6.6.5 is the latest version of our current stable release series. See the Version History and Release Notes for details. Condor 6.6 is available from our Downloads page.

(April 2004) Condor 6.7.0 released!
6.7.0 is the first release of our development series. It includes some exciting new features, including support for jobs to tolerate network failures between the submit and execute sites, job mirroring between multiple submit points, high availability between some daemons, DRMAA support, the ability to submit into grids managed by GT3 web services, NorduGrid, and Oracle jobs, support for MyProxy Online Credential Management, over two gigabyte file transfer support, steaming output from vanilla jobs, and many other features. See the Version History and Release Notes for details. Condor 6.7.0 is available from our Downloads page.

(April 2004) We recently finished Paradyn-Condor Week
Presentations that were given can be found online. There are also a few pictures available.

(April 2004) Condor "Setup Hawkeye" package is available
Version 0.1.0 of the Condor "Setup Hawkeye" package is now available. We've been getting an increasing stream of requests to make it easier to add Hawkeye features to your existing Condor. To solve this problem, we've created the above package which modifies your Condor configuration & installs the same "install module" script as is used in Hawkeye (except that here it's named condor_install_module instead of hawkeye_install_module). You can then download & install the same modules as you can for Hawkeye, and can then use the dynamic attributes in your Machine Ad for match-making purposes. More details are available through the Hawkeye page

(April 2004) Condor 6.6.3 and 6.6.4 released!
6.6.4 and 6.6.3 are the latest version of our current stable release series. 6.6.4 is for MacOS X and Windows only, and is otherwise identical to 6.6.3. 6.6.3 includes support for Globus 3.2, and removes support for Globus releases prior to 2.2. If you are not using the Globus universe, there is very little difference between 6.6.2 and 6.6.3. See the Version History and Release Notes for details. Condor 6.6 is available from our Downloads page.

(Feb 2004) Paradyn-Condor Week will be April 14-16th, 2004!
The annual Condor meeting will take place as part of Paradyn-Condor week at the Fluno Center on University of Wisconsin, Madison campus on April 14th-16th, 2004. You can learn more on the conference web page.

(March 2004) NeST 0.9.6 released
NeST version 0.9.6 has been released and is available for download.

(July 2003) Condor-Users mailing list opened!
A new mailing list for condor users has been added. The Condor Users mailing list is designed to bring the Condor user community together to share ideas, problems, and solutions. It is meant to supplement, but not replace, our existing support channels.

(June 2003) New section on platform-specific information added to the Condor manual.

(April 2003) Version 2.0 of the fault tolerant shell is available.

(April 203) Top Five Myths About Condor posted.

(Feb 2003) Read the article "An Interview with Visionary Miron Livny of University of Wisconsin" in the Feb 10th issue of GRIDtoday.

(Feb 2003) Condor is going open source!
The usage license for Condor has changed to the Condor Public License, a very liberal license that permits installation, use, reproduction, display, modification and redistribution of Condor, with or without modification, in source and binary forms. This license has already been applied to the binary downloads for Condor version 6.4.7 for both UNIX and Windows. The Condor Team is busily preparing the source code for public release under the terms of the Condor Public License as well. Stay tuned!

(January 2003) Condor 6.4.7 for Windows and UNIX released!
Condor 6.4.7 for both UNIX and Windows has been released. 6.4.7 corrects a critical bug with Condor that caused a misreporting of jobs in the pool. It is available from our Downloads page.

(November 2002) Condor-G included in NMI version 2.1
Condor-G is a featured component of the Grids Center Software Suite which is part of the NSF Middleware Initiative.
Here's the associated NSF press release.

(Feb 2002) NeST 0.6 released
NeST 0.9 has been released. It is available under the GPL license.

(Jan 2002) Bypass release 2.4.9
Bypass, a tool for building interposition agents, is released under the GPL and is available from the Bypass page.

(November 2001) ClassAd C++ Library, version 0.9
The C++ standalone ClassAd library has been released. It is available under the LGPL license. It is available from the ClassAds page.

(October 2001) Condor Version 6.3.1 released!
Condor Version 6.3.1 has been released, and is available on the downloads page. 6.3.1 is the second release in the 6.3 development series. The main focus of this release was bug fixes over the 6.3.0 release and support for Redhat 7.1 Linux. The complete list of changes can be found here

(September 2001) NMI is the NSF Middleware Initiative, and Condor is part of it.

() Condor Version 6.2.1 released!
Condor Version 6.2.1 has been released, and is available on the downloads page. 6.2.1 is the second release in the 6.2 stable series. The main focus of this release was bug fixes over the 6.2.0 release, and all 6.2.0 users are urged to upgrade to 6.2.1. The complete list of changes can be found here

() Condor Version 6.3.0 released!
Condor Version 6.3.0 has been released, and is available on the downloads page. 6.3.0 is the first release in the 6.3 development series. Future 6.3 releases will contain many new features, primarily in the areas of MPI support, Globus support, firewall support, an improved DAGMan, improved error handling / propagation, and bandwidth regulation. For more info on our version-number system, please read this.

The UNIX builds are now available on the website. The primary focus of 6.3.0 has been in preliminary support for MPI jobs on dedicated clusters of machines. 6.3.0 is not as well-tested as 6.2.0, and undoubtedly contains a number of bugs. It should not be used by those requiring a tried and tested system; for that we recommend the 6.2 stable series.

(Feb 2001) Condor Version 6.2.0 released!
Condor Version 6.2.0 has been released, and is available on the downloads page. 6.2.0 is the first release in the 6.2 stable series. Future 6.2.X releases will be mainly bug fixes. For more info on our version-number system, please read this.

The UNIX and NT builds are now available on the website, and 6.0 and 6.1 releases have been removed. The 6.2.0 manual is also available, and includes a section on how to upgrade your pool from 6.0.3 to 6.2.0. The 6.3 DAGMan will also be released very soon.

(Feb 2001) Condor Version 6.1.17 released!
Condor Version 6.1.17 is now released, and is available on the downloads page.

6.1.17 adds full support for Solaris 8 and some bug fixes.

6.1.17 will likely be the last version of Condor until the 6.2.0 release. New users should choose it over 6.0.3.

(September 2000) Announcing the formation of an Internet2 PKI Lab at UW-Madison!
The press release, the Internet2 PKI Lab home page, and the Internet2 PKI Lab at UW-Madison home page

(September 2000) Condor Version 6.1.16 released!
Condor Version 6.1.16 is now released, and is available on the downloads page.

(September 2000) Condor NT Version 6.1.16_preview released!
Condor NT Version 6.1.16_preview is now released, and is available on the downloads page. It fixes several bugs, including some significant memory leaks, from the previous Condor NT release. There are a significant number of changes and issues to know about between Condor NT and Condor for UNIX.

(August 2000) Condor Version 6.1.15 released!
As our 6.1 development series winds down, we have released 6.1.15 which provides several enhancements, as well as numerous bug fixes, including the fix that avoids the 2.2.14 Linux kernel bug.

For complete details, you can read about what's new in this version.

If you install the Unix version of Condor 6.1.15 into a new pool, you will have ADD the following three lines into your condor_config.local file on your central manger: 
DAEMON_LIST   = MASTER, COLLECTOR, NEGOTIATOR, STARTD, SCHEDD
COLLECTOR     = $(SBIN)/condor_collector
NEGOTIATOR    = $(SBIN)/condor_negotiator
Naturally, if you run fewer things on your central manager, you should take them out of the DAEMON_LIST.

(August 2000) Linux Kernel Bug Touched By Condor!
The default Linux kernel shipped with Red Hat 6.2 contains a bug which Condor can trigger. This would cause Red Hat 6.2 machines running Condor to hang. All Red Hat 6.2 users should either upgrade their kernel to 2.2.16 or later, or upgrade to Condor Version 6.1.15, which will be out early the week of 8/21/00.

(June 2000) Condor Version 6.1.14 released!
Soon after the 6.1.13 release of Condor we noticed that it had a bug with periodic checkpointing. 6.1.14 fixes this as well adds support for Red Hat 6.2. For complete details, you can read about what's new in this version.

(June 2000) Condor Version 6.1.13 released!
Condor version 6.1.13 contains full support for Solaris 2.7. In addition, it fixes a number of bugs in version 6.1.12. There are a few remaining known bugs, but they are all very minor. These known bugs are listed in the version history (see below) and will be fixed in the next release. There are a number of new features in 6.1.13, as well. For complete details, you can read about what's new in this version.

(Feb 2000) Condor Version 6.1.12 released!
Condor version 6.1.12 contains bug fixes for all the major bugs in 6.1.11. There are a few remaining known bugs, but they are all very minor. These known bugs are listed in the version history (see below) and will be fixed in the next release. Anyone who downloaded 6.1.11 should upgrade to 6.1.12 as soon as possible. For complete details, you can read about what's new in this version.

(Feb 2000) Fortran bugs found in version 6.1.11 for Solaris and IRIX
Condor version 6.1.11 contains bugs in the way we handle certain system calls that are used by Fortran. This is a problem particularly on Solaris and IRIX, though other platforms might have problems as well. We will release a new version shortly that corrects these problems. If you are only using vanilla jobs, this should not effect you. If you do not relink your jobs with condor_compile using the 6.1.11 libraries, you will also not have this problem (though you also won't be able to use many of the new features in 6.1.11).

(Feb 2000) Condor Version 6.1.11 released!
Condor version 6.1.11 contains a large number of bug fixes, and new features. In particular, there is enhanced support for various remote system calls, a much better infrastructure for Condor-level I/O buffering, and better reporting in the notification email. In addition, limited support for network sockets within "standard universe" jobs is now available. This is also the first version with full support for checkpointing and remote system calls under Irix 6.5. For complete details, you can read about what's new in this version.

(January 2000) Condor in the news!
Condor has been mentioned in NCSA Datalink, in the January 2000 edition, as well as NAS News: NAS Condor Population Expands to Hundreds.

(November 1999) condor_status bug in 6.1.10 found
Condor version 6.1.10 contains a minor bug in the condor_status program. For some sites, this causes condor_status to have a segmentation fault, be killed by SIGSEGV, and to drop a core file when trying to display the totals at the end of condor_status. If you are upgrading to 6.1.10 from a previous version, please save your old condor_status binary and install that into your Condor bin directory once you have completed your upgrade. Version 6.1.11 will fix this bug.

(November 1999) Condor Version 6.1.10 released!
Condor version 6.1.10 contains a fix to a bug in the checkpointing code for "standard" jobs introduced in 6.1.9. In addition, "clipped" support for Sparc Solaris 2.7 is available for the first time in 6.1.10. A few other minor features were added as well, including a -format option to condor_q. For complete details, you can read about what's new in this version.

(November 1999) Checkpointing bug in Condor Version 6.1.9
Condor 6.1.9 contains a bug in the checkpointing code for "standard" jobs. Once a job checkpoints for the first time, it will no longer be able to checkpoint again. If you are using the standard universe (relinking your jobs with condor_compile), you are going to have problems with 6.1.9. A new version will be released very soon to fix this bug.

(November 1999) Condor Version 6.1.9 released!
Condor 6.1.9 is now available from the main site (Madison, WI, USA).

Along with a whole series of bug fixes and new features, 6.1.9 is the first version of Condor to fully support all main Intel Linux distributions, including the 2.2.X kernel, and all 3 versions of the C library now in use (libc5, glibc 2.0 and glibc 2.1). For more info on Condor support for Linux, please see The Condor Linux README.

For complete details, you can read about what's new in this version.

(October 1999) A Preview version of Condor for Microsoft Windows NT 4.0 is now available!
The initial version of Condor NT is now available on the downloads page.

(August 1999) The Condor Manuals are now available from the Mirror Site!
The Condor Version 6.0 and Version 6.1 manuals, in several formats, are available for download from the Madison, WI, USA or Bologna, Italy sites.

(August 1999) Condor Version 6.1.8 released
Condor 6.1.8 is now available from the main site (Madison, WI, USA), or from the mirror site (Bologna, Italy).

Of the major improvements in this release, the condor_schedd has been fixed to handle clusters of hundreds/thousands of jobs more efficiently. For standard jobs you can now also specify file buffering, as well as file remapping.

For complete details, you can read about what's new in this version.

(June 1999) Condor Mirror Site!
Condor Downloads can now be downloaded from Bologna, Italy (courtesy of Istituto Nazionale di Fisica Nucleare Sezione di Bologna).

(June 1999) Condor Version 6.1.7 Released
Condor 6.1.7 is now available for download for Alpha Linux and Intel Linux with glibc. There are no other new features, and no bug fixes from 6.1.6, so we do not even provide binaries for 6.1.7 on any other platforms. On Alpha Linux, we only support vanilla jobs at this time. There is no support for checkpointing and remote system calls yet (though we'll be working on that and making it available ASAP). For Intel, all of the linking problems with machines using glibc 2.0.X and the various versions of EGCS have been resolved in 6.1.7. Therefore, Red Hat 5.X and Debian 2.0.X should work. Red Hat 6.0 and the latest Debian release are NOT SUPPORTED by Condor yet. They use the new 2.2.X Linux kernel, and glibc version 2.1.X, which are not supported at this time. Sometime soon, we'll support all combinations of kernels, compilers, and versions of libc that are available with Linux. For complete details, you can read about what's new in this version.

(June 1999) Condor Version 6.1.6 Released.
Condor 6.1.6 is now available for download. Version 6.1.6 fixes many serious bugs from 6.1.5. In addition, it provides many new features, including the ability to dynamically reconfigure the number of virtual machines reported by the SMP startd, SMP support for Digital Unix machines and much more. There are still some unresolved problems with Linux running Red Hat 5.2 (LINUX-GLIBC). This platform is not supported in 6.1.6. A 6.1.7 release will follow very soon, which will support Red Hat 5.2. Red Hat 6.0 is NOT SUPPORTED by Condor yet. It uses the new 2.2.X Linux kernel, which is not supported at this time. Like all development releases, this release is INCOMPATIBLE with previous versions of Condor. DO NOT TRY TO USE IT IN A POOL WITH ANY 6.1.5 DAEMONS. For complete details, you can read about what's new in this version.

(April 1999) Condor Version 6.1.5 Released.
Condor 6.1.5 is now available for download. Version 6.1.5 fixes many bugs. Major things that are fixed in this release are: Fortran under Linux, Redhat 5.2 support, condor_preen fixes, and others... NOTE: condor_userprio, condor_stats, the -pool option to many Condor tools, and Condor PVM are all broken by a change introduced in 6.1.5. These will all be fixed in 6.1.6. For complete details, you can read about what's new in this version.

(March 1999) Use of MemoryRequirements in the UW Madison CS Pool
The UW Madison CS Condor pool has been configured to check for a MemoryRequirements parameter in all Condor jobs. This parameter specifies, in megabytes, how much physical memory your job needs to run efficiently. If this parameter is not specified, Condor will assume a default value of 128 MB. Condor will only run jobs on machines with enough available physical memory to satisfy the jobs' memory requirements. To specify this parameter, please add the following to your job description file(s): 
  +MemoryRequirements = 90
replacing 90 with the actual memory requirements of your job in megabytes. We encourage you to continue to specify your job's virtual memory requirements with the image_size command in your job description file.

(March 1999) CondorView Client Contrib Module now available
The CondorView Client contrib module automatically generates HTML pages that publish usage statistics about your pool to the World Wide Web. Quickly and easily view how much Condor is being used, how many cycles are being delivered, and who is using them. View utilization by machine platform or by user. Interact with a Java applet to customize the visualization, or to zoom-in to a specific time frame.

(March 1999) Condor Version 6.1.4 Released - Version 6.1.3 removed!
A fatal bug was found in Version 6.1.3 that would cause daemons to die on signal 8 (SIGFPE). Version 6.1.4 has been released to fix that (and a couple other minor things). For complete details, you can read about what's new in this version.

(March 1999) Process Hijacking paper
A new paper discussing taking currently running processes and submitting them into Condor.

(Feb 1999) Condor Version 6.1.3 (development series) Released
The latest version of the development series is now available for download. NOTE: There are a lot of new, unstable features in 6.1.3. PLEASE do not install all of 6.1.3 on a production pool. Almost all of the bug fixes in 6.1.3 are in the condor_startd or condor_starter, so, unless you really know what you're doing, we recommend you just upgrade SMP-Startd contrib module, not the entire 6.1.3 release. In addition, many things dealing with queue management have been overhauled, so tools such as condor_q, condor_rm, and others, are incompatible with older versions. For complete details, you can read about what's new in this version.

(January 1999) Condor Version 6.1.2 (development series) Released
The latest version of the development series is now available for download. It includes DAGMan, the DAG-Manager In addition, it fixes some problems with the 6.1.1 release (missing files, a bug in condor_install, etc). For complete details, you can read about what's new in this version.

(December 1998) More Condor Contrib Modules Released and Condor Version 6.1.1
The Condor Checkpoint server, PVM support, and CondorView server contrib modules are now online! Condor Version 6.1.1 is also available, again, for use if you know what your doing only!

(December 1998) Condor Contrib Modules Released
These optional modules enable you to install new parts of Condor without switching your entire pool to the development series. If you want a certain new feature (like support for SMP machines), we highly recommend you just install the contrib module for that feature, instead of upgrading your whole pool to the development series.

(December 1998) Condor Version 6.1.0 (development series) Released
At long last, the development series of Condor has been released. It supports Solaris 2.5.1 and 2.6 on Intel and Sparc platforms, Linux for Intel (libc5 and glibc), SGI IRIX 6.2 through 6.4, Digital Unix 4.0, and HPUX 10.20. You can read about what's new in this version. It contains various new features, including support for SMP machines, "flocking", the new CondorView server, and other things. Most of these features can also be installed in your stable pool by using the "contrib" modules that are also released (see above).

(November 1998) Condor Version 6.0.3 Released
This is the new, stable version of Condor. It fully supports Solaris 2.5.1 and 2.6 on Intel and Sparc platforms, Linux for Intel (libc5 and glibc), SGI IRIX 6.2 through 6.4, Digital Unix 4.0, and HPUX 10.20. You can read about what's new in this version. This version only fixes bugs in Condor's interaction with NIS, and with the benchmarking code that was causing a floating point exception (SIGFPE) on extremely fast machines (like the fastest Alphas). If you don't use NIS, or you weren't having problems with the condor_startd exiting with signal 8, there's no need to upgrade.

(October 1998) Condor Version 6.0.2 Released
This is the new, stable version of Condor. It fully supports Solaris 2.5.1 and 2.6 on Intel and Sparc platforms, Linux for Intel (libc5 and glibc), SGI IRIX 6.2 through 6.4, Digital Unix 4.0, and HPUX 10.20. You can read about what's new in this version. It contains only bug fixes to Condor Version 6.0.1. A new development release of Condor (version 6.1.0) will be released soon with new features, such as support for running multiple jobs on SMP machines.

(September 1998) Condor Version 6.0.1 Released
This is the new, stable version of Condor. It fully supports Solaris 2.5.1 and 2.6 on Intel and Sparc platforms, Linux for Intel (libc5 and glibc), SGI IRIX 6.2 through 6.4, Digital Unix 4.0, and HPUX 10.20. You can read about what's new in this version.

(September 1998) New Condor version number scheme.
With the release of Condor Version 6.0.1, we have also introduced a new, hopefully easy to follow version numbering scheme for future versions of Condor. There will now be both a stable release series and a development release series available at any given time (much like the Linux kernel).

(June 1998) Condor Version 6.0.1 beta Released
You can read about what's new in this version.

(May 1998) Condor Version 6.0 Patch Level 4 Released
You can read about what's new in this patch level.

(April 1998) Condor Version 6.0 Manual Released

(April 1998) Condor Version 6.0 Released for SGI, Solaris, LINUX, Alpha

(January 1998) Condor Version 6.0 Beta installed at UW-Madison CS Department Notice

(November 1997) Condor contributes cycles to the largest ever Metacomputing testbed at SC97

(August 1997) Wisconsin Condor Assists Illinois Mathematician .

(August 1997) UW Computing Network Takes Flight With Intel Grant

(July 1997) Condor was used at UW-Madison to attack RC5.

(June 1997) HPCwire interview on HTC .

(June 1997) Condor v5.62 was available for public download.
It contains many bug patches, ports to new platforms including IRIX 6.2 and HPUX 10.20, updated man pages and installation docs, and handy extras (such as the condor_compile command).

(June 1997) HPCU news article

(April 1997) Slides from the Condor presentation at the Ninth Annual NCSA Industrial Partner Executive Meeting.

(March 1997) Condor Takes Flight at NCSA!