Hi,

I agree that this may be a node configuration issue.  It might also be caused 
by your resource request.  Can you provide your node configuration and an 
example submission script?

- Sebastian

--

[University of Nevada, Reno]<http://www.unr.edu/>
Sebastian Smith
High-Performance Computing Engineer
Office of Information Technology
1664 North Virginia Street
MS 0291

work-phone: 775-682-5050<tel:7756825050>
email: stsm...@unr.edu<mailto:stsm...@unr.edu>
website: http://rc.unr.edu<http://rc.unr.edu/>

________________________________
From: slurm-users <slurm-users-boun...@lists.schedmd.com> on behalf of Nizar 
Abed <ni...@huji.ac.il>
Sent: Tuesday, August 25, 2020 2:38 PM
To: Slurm User Community List <slurm-users@lists.schedmd.com>
Subject: Re: [slurm-users] CR_Core_Memory behavior

Sounds like you didn’t define RealMemory for NodeName in slurm.conf(?)

--
All the best,
Nizar

On Aug 25, 2020, at 19:51, Durai Arasan <arasan.du...@gmail.com> wrote:


Hello,

On our cluster we have SelectTypeParameters set to "CR_Core_Memory".

Under these conditions multiple jobs should be able to run on the same node. 
But they refuse to be allocated on the same node and only one job runs on the 
node and rest of the jobs are in pending state.

When we changed SelectTypeParameters to "CR_Core" however, this issue was 
resolved and multiple jobs were successfully allocated to the same node and ran 
concurrently on the same node.

Does anyone know why such behavior is seen? Why does including memory as 
consumable resource lead to node exclusive behavior?

Thanks,
Durai

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