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.
HTCondor Security Release: 8.8.8 and 8.9.6
April 7, 2020
Re-release of 8.9.5 deb Packages for Debian and Ubuntu
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
February 25, 2020
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.
One HTCondor pool delivers over an ExaFLOP hour cost-effectively for IceCube
February 13, 2020
Univ of Manchester dynamically grows HTCondor in to Amazon cloud
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 HTCondor Week 2020 Registration Open
February 13, 2020
HTCondor-CE 4.1.0 released!
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
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
HTCondor-CE 4.1.0 binaries are available from our