31 March 2025 to 4 April 2025
Hotel De La Paix
Europe/Zurich timezone

User and "queue" caps in HTCondor

3 Apr 2025, 14:20
15m
Hotel De La Paix

Hotel De La Paix

Via Giuseppe Cattori 18 6900 Lugano Switzerland
Computing & Batch Services Computing and Batch Services

Speaker

Jeff Templon

Description

At Nikhef, we've based much of our "fairness" policy implementation around User, group, and job-class (e.g. queue) "caps", that is, setting upper limits on the number of simultaneous jobs (or used cores). One of the main use cases for such caps is to prevent one or two users from acquiring the whole cluster for days at a time, blocking all other usage.

When we started using HTCondor, there was no obvious way to implement these caps. We recently discovered a native HTCondor functionality that allowed us to implement these caps with minimal extra configuration. This talk will explain.

Desired slot length 15 min
Speaker release Yes

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