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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.

A European Pool Administrator Workshop is scheduled for December 8th through the 11th at CERN. Registration is now open.

Latest News [RSS]

Registration open for European HTCondor Pool Admin Workshop: Dec. 8th - Dec. 11th, 2014

November 18, 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.
HTCondor 8.2.4 released!

November 12, 2014

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.
Videos from HTCondor Week 2014 available online

November 5, 2014

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.
European HTCondor Pool Admin Workshop: Dec. 8th - Dec. 11th

October 28, 2014

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.
Novartis uses HTCondor to further cancer drug design.

October 6, 2014

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.
HTCondor 8.2.3 released!

October 1, 2014

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.
HTCondor 8.3.1 released!

September 11, 2014

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.
HTCondor 8.3.0 released!

August 12, 2014

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_negiotator 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.

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