[slurm-users] PreemptExemptTime

Groner, Rob rug262 at psu.edu
Fri Mar 10 14:28:18 UTC 2023

Ya, it did seem like there was quite a bit of overlap between what partitions could do and what qos could do.  So, choose one or the other to accomplish our preemption/suspension goals?  I'll see if I can do that.  I think I'll look at qos, because partitions don't have the preempt exempt time (unless that comes from the global setting).



From: slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of Christopher Samuel <chris at csamuel.org>
Sent: Tuesday, March 7, 2023 3:40 PM
To: slurm-users at lists.schedmd.com <slurm-users at lists.schedmd.com>
Subject: Re: [slurm-users] PreemptExemptTime

On 3/7/23 6:46 am, Groner, Rob wrote:

> Over global settings are PreemptMode=SUSPEND,GANG and
> PreemptType=preempt/partition_prio.  We have a high priority partition
> that nothing should ever preempt, and an open partition that is always
> preemptable.  In between is a burst partition.  It can be preempted if
> the high priority partition needs the resources.  That's the partition
> we'd like to guarantee a 1 hour run time on.  Looking at the sacctmgr
> man page, it gives this info on QOS

Just a quick comment, here you're talking about both partitions and
QOS's with respect to preemption, I think for this you need to pick just
one of those options and only use those configs. For instance we just
use QOS's for preemption and our exempt time works in that case.

Hope this helps!

All the best,
Chris Samuel  :  https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.csamuel.org%2F&data=05%7C01%7Crug262%40psu.edu%7C0ed8f546e70843e7266208db1f4c5471%7C7cf48d453ddb4389a9c1c115526eb52e%7C0%7C0%7C638138184919726959%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=md1MaA%2FIj%2Fb%2B27e7JLkVwSY5IUSVnsJIdx6PADl0JF4%3D&reserved=0  :  Berkeley, CA, USA

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