Ticket 1789

Summary:	Preempt on both partition and QOS?
Product:	Slurm	Reporter:	Kilian Cavalotti <kilian>
Component:	Scheduling	Assignee:	Brian Christiansen <brian>
Status:	RESOLVED FIXED	QA Contact:
Severity:	5 - Enhancement
Priority:	---	CC:	brian, da
Version:	14.11.8
Hardware:	Linux
OS:	Linux
Site:	Stanford	Alineos Sites:	---
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Machine Name:		CLE Version:
Version Fixed:	15.08.0	Target Release:	---
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Description Kilian Cavalotti 2015-07-08 10:39:29 MDT

Hi,

I'm wondering if it's possible to make job preemption work at both the partition and the QOS level?
We currently have partition-based preemption working, but ideally, we would like to be able to set another level of preemption inside a given partition, using QOSes.

Apparently, PreemptType can take only one argument in slurm.conf.

Thanks!
Kilian

Comment 1 Moe Jette 2015-07-08 10:55:59 MDT

You can preempt jobs based upon either QOS or partition, but not both.

It would probably be messy, but you could possibly define a distinct QOS for each partition (e.g. high_batch, medium_batch, low_batch, high_interactive, medium_interactive, low_interactive, etc.).

Comment 2 Kilian Cavalotti 2015-07-08 13:09:30 MDT

Hi Moe, 

Thanks for the confirmation.
I guess we'll end up doing something like that in version 15.08, with the new QOS-to-partition binding.

Cheers,
-- 
Kilian

Comment 3 Moe Jette 2015-09-22 08:52:04 MDT

Information about per-partition QOS here:
http://slurm.schedmd.com/SLUG15/Partition_QOS.pdf

Please re-open the ticket if this does not satisfy your needs and I can look at preempting jobs based upon either QOS or partition (both within the same cluster). That could be done, but requires a fair bit of code change.