[slurm-users] Preemption Priority

[Oytun Peksel]

Hi,

Let's say I have two partitions assigned to the same single load in the cluster.
LowPrio with PreemptMode=suspend Priority=1
HighPrio with PreemtMode=off Priority=5

I have 4 identical jobs requiring 1/2 of resources in the cluster. So only 2 jobs can run at the same time.
I queue up two of these jobs to LowPrio partition one after the other. Let's say one have jobid=10 and the next one has jobd=11

Then I queue up a third job to HighPrio partition. One of the LowPrio jobs immediately get suspended.

Q1. How can I make sure the one submitted latest(jobid=11 in this case) gets suspended and not jobid=10?

Then before any job is finished I submit the final job to LowPrio partition.

So the queue looks like this
[cid:image001.png at 01D58B36.DE3E3010]

Q2. When HighPrio job (12) finishes how can I make sure suspended job(10) would start instead of the pending job(13)?



Thanks

Oytun Peksel




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