[slurm-users] Node OverSubscribe even if set to no

Chris Samuel chris at csamuel.org
Tue Apr 17 02:28:50 MDT 2018

On Tuesday, 17 April 2018 5:26:26 AM AEST Stéphane Larose wrote:

> So some jobs are now sharing the same cores but I don’t understand why since
> OverSubscribe is set to no.

You might want to double check the config is acting as expected with:

scontrol show part | fgrep OverSubscribe

Also what does this say?

scontrol show config | fgrep SelectTypeParameters

I note that if you've got CR_Memory then:

                            Memory  is  a  consumable  resource.   NOTE:  This
                            implies OverSubscribe=YES  or  OverSubscribe=FORCE
                            for  all  partitions.  Setting a value for DefMem‐
                            PerCPU is strongly recommended.

 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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