[slurm-users] Slurm compute node with Intel 12th gen CPU

[Chip Seraphine]

Probably not the answer you’re looking for, but in my environment I simply disabled hyperthreading in the BIOS.   This avoided situations where we had things like “2 processes running on different threads on the same core while another core is sitting idle”.   If you are more often constrained by memory than CPU, this won’t hurt your throughput much (and might even help).


From: slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of Michael Bernasconi <michael.bernasconi94 at gmail.com>
Reply-To: Slurm User Community List <slurm-users at lists.schedmd.com>
Date: Wednesday, December 20, 2023 at 8:59 AM
To: "slurm-users at lists.schedmd.com" <slurm-users at lists.schedmd.com>
Subject: [ext] [slurm-users] Slurm compute node with Intel 12th gen CPU

I'm trying to get slurm working on an Intel 12th gen CPU. slurmd instantly fails with the error message "Thread count (24) not multiple of core count (16)". I have tried adding "SlurmdParameters=config_overrides" to
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I'm trying to get slurm working on an Intel 12th gen CPU. slurmd instantly fails with the error message "Thread count (24) not multiple of core count (16)".
I have tried adding "SlurmdParameters=config_overrides" to slurm.conf, and I have experimented with various combinations of "Sockets", "CoresperSocket", "ThreadsPerCore", and "CPUs" but so far nothing has worked.
Does anyone know how to get this working? Are CPUs with heterogeneous cores just not supported by slurm?

Kind Regards,
Michael
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