[slurm-users] slurm node weights
Ole Holm Nielsen
Ole.H.Nielsen at fysik.dtu.dk
Mon Sep 9 05:48:47 UTC 2019
You should be able to assign node weights to accommodate your
prioritization wishes. I've summarized this setting in my Slurm Wiki page:
I hope this helps.
On 9/5/19 5:48 PM, Douglas Duckworth wrote:
> We added some newer Epyc nodes, with NVMe scratch, to our cluster and so
> want jobs to run on these over others. So we added "Weight=100" /*to
> the older nodes*/ and left the new ones blank. So indeed, ceteris
> paribus, srun reveals that the faster nodes will accept jobs over older
> We have the desired outcome though I am a bit confused by two statements
> in the manpage <https://slurm.schedmd.com/slurm.conf.html> that seem to
> be contradictory:
> "All things being equal, jobs will be allocated the nodes with the
> lowest weight which satisfies their requirements."
> "...larger weights should be assigned to nodes with more processors,
> memory, disk space, higher processor speed, etc."
> 100 is larger than 1 and we do see jobs preferring the new nodes which
> have the default weight of 1. Yet we're also told to assign larger
> weights to faster nodes?
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