[slurm-users] Limit Number of Jobs per User in Queue?

Renfro, Michael Renfro at tntech.edu
Wed Mar 18 17:49:17 UTC 2020

In addition to Sean’s recommendation, your user might want to use job arrays [1]. That’s less stress on the scheduler, and throughput should be equivalent to independent jobs.

[1] https://slurm.schedmd.com/job_array.html

Mike Renfro, PhD  / HPC Systems Administrator, Information Technology Services
931 372-3601<tel:931%20372-3601>      / Tennessee Tech University

On Mar 18, 2020, at 12:10 PM, Hanby, Mike <mhanby at uab.edu> wrote:

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We are running Slurm 18.08. We have a user who has, twice, submitted over 15 thousand jobs to the cluster (the queue normally has a couple thousand jobs at any given time).

This results in Slurm being unresponsive to user requests / job submits. I suspect the scheduler is getting bogged down doing backfill processing.

Is there any way to limit the maximum number of jobs a single user can have in the queue at any given time?

Mike Hanby
mhanby @ uab.edu
Systems Analyst III - Enterprise
IT Research Computing Services
The University of Alabama at Birmingham
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