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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.

Latest News [RSS]

HTCondor 8.7.2 released!

June 22, 2017

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.
HTCondor 8.6.4 released!

June 22, 2017

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.
Register soon for the European HTCondor workshop!

May 22, 2017

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".

HTCondor 8.6.3 released!

May 9, 2017

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.
HTCondor 8.7.1 released!

April 24, 2017

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.
HTCondor 8.6.2 released!

April 24, 2017

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.

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