Requesting --exclusive and then using $SLURM_CPUS_ON_NODE to determine the
number of the tasks or threads to use inside the job script would be my
recommendation.
--Troy
-----Original Message-----
From: slurm-users <slurm-users-boun...@lists.schedmd.com> On Behalf Of Tina
Friedrich
Sent: Tuesday, March 22, 2022 10:43 AM
To: slurm-users@lists.schedmd.com
Subject: Re: [slurm-users] Use all cores when submitting to heterogeneous nodes
Hi Richard,
...what's wrong with using '--exclusive'? I mean if you're wanting all
cores on the node anyway, wouldn't asking for it exclusively be pretty
much the same thing?
Tina
On 22/03/2022 14:29, Richard Ems wrote:
> Hi all,
>
> I am looking for an option to use all cores when submitting to
> heterogeneous nodes.
> In this case I have 2 partitions:
> part1: #N1 nodes, each node has 40 cores
> part2: #N2 nodes, each node has 48 cores
>
> I want to submit to both partitions, requesting a number of nodes and
> then set
> --ntasks=40*#nodes
> or
> --ntasks=48*#nodes
> depending on which partition gets selected by Slurm.
> Can this be done?
>
> An option similar to --ntasks=USE_ALL_CORES would be great.
>
> Many thanks,
> Richard
>
> --
> Richard Ems / aiduit / r....@aiduit.com
> <mailto:r....@aiduit.com>
--
Tina Friedrich, Advanced Research Computing Snr HPC Systems Administrator
Research Computing and Support Services
IT Services, University of Oxford
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