The format has changed a bit, since none of our RawShares column is ‘parent’.
But you can test this to be certain.
If your cluster already has jobs pending, have bsmith (who has zero usage) and csmith (who has a lot of usage, relatively) each submit several jobs into the pending queue. Alternatively, have bsmith and csmith submit jobs with larger resource requests: jobs that are large enough to automatically go into a pending state due to lack of resources. Those might be jobs that request the whole cluster, even.
bsmith’s jobs should get a higher priority as seen from sprio, and bsmith’s jobs should start earlier than csmith’s.
From: Drucker, Daniel DDRUCKER@MCLEAN.HARVARD.EDU Date: Friday, August 9, 2024 at 3:11 PM To: Renfro, Michael Renfro@tntech.edu Cc: slurm-users@lists.schedmd.com slurm-users@lists.schedmd.com Subject: Re: [slurm-users] FairShare if there's only one account?
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________________________________ Looks like this:
$ sshare -a -A mic Account User RawShares NormShares RawUsage EffectvUsage FairShare -------------------- ---------- ---------- ----------- ----------- ------------- ---------- mic 120 0.991736 55524598 1.000000 mic asmith parent 0.991736 2532311 0.045607 0.983871 mic bsmith parent 0.991736 0 0.000000 0.983871 mic csmith parent 0.991736 3265529 0.058805 0.983871 mic djones parent 0.991736 0 0.000000 0.983871 mic ejones parent 0.991736 2210952 0.039820 0.983871 ...etc etc etc...
Does that look right?
On Aug 9, 2024, at 4:05 PM, Renfro, Michael via slurm-users slurm-users@lists.schedmd.com wrote:
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I don’t have any 21.08 systems to verify with, but that’s how I remember it. Use “sshare -a -A mic” to verify. You should see both a RawShares and a NormShares column for each user. By default they’ll all have the same value, but they can be adjusted if needed.
From: Drucker, Daniel via slurm-users <slurm-users@lists.schedmd.commailto:slurm-users@lists.schedmd.com> Date: Friday, August 9, 2024 at 1:39 PM To: slurm-users@lists.schedmd.commailto:slurm-users@lists.schedmd.com <slurm-users@lists.schedmd.commailto:slurm-users@lists.schedmd.com> Subject: [slurm-users] FairShare if there's only one account? External Email Warning
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________________________________ Simple question:
Does FairShare still work if every user is under one account? E.g.:
$ sacctmgr show assoc format=Account,User Account User ---------- ---------- root root root mic mic asmith mic bsmith mic csmith mic djones mic ejones mic frubble
Will it divide time up fairly between the users? I have:
PriorityType=priority/multifactor PriorityFavorSmall=YES PriorityWeightAge=50000 PriorityWeightFairshare=100000 PriorityWeightJobSize=0 PriorityWeightQOS=0
In 21.08.8.
-- Daniel M. Drucker, Ph.D. Director of IT, MGB Imaging at Belmont McLean Hospital, a Harvard Medical School Affiliate
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