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Computing with HTCondor™

Our goal is to develop, implement, deploy, and evaluate mechanisms and policies that support High Throughput Computing (HTC) on large collections of distributively owned computing resources. Guided by both the technological and sociological challenges of such a computing environment, the Center for High Throughput Computing at UW-Madison has been building the open source HTCondor distributed computing software (pronounced "aitch-tee-condor") and related technologies to enable scientists and engineers to increase their computing throughput.

Note: The HTCondor software was known as 'Condor' from 1988 until its name changed in 2012. If you are looking for Phoenix Software International's software development and library management system for z/VSE or z/OS, click here.

Registration open:
HTCondor / ARC CE Workshop

February 29, 2016-March 4, 2016
Barcelona, Spain

Save the date:
HTCondor Week

May 17-20, 2016
Madison, Wisconsin, USA

Latest News [RSS]

HTCondor 8.4.4 released!

February 2, 2016

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.
Registration open for Barcelona Workshop for HTCondor / ARC CE

January 28, 2016

*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.
Re-release of RPMs for HTCondor 8.4.3 and 8.5.1

January 8, 2016

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.
HTCondor / ARC CE Workshop: 29 February 2016 to 4 March 2016

January 4, 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 âoffice hoursâ 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!

HTCondor 8.5.1 released!

December 21, 2015

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 advertizes 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.
HTCondor 8.4.3 released!

December 16, 2015

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.
HTCondor 8.4.2 released!

November 17, 2015

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.
HTCondor 8.4.1 released!

October 27, 2015

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.

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