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

[Ole Holm Nielsen]

On 20-12-2023 15:59, Michael Bernasconi wrote:
> 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?

On the node run "slurmd -C" which will print Slurm's view of the 
hardware.  Use this information in your slurm.conf file.

You should configure the RealMemory value slightly less than what is 
reported by slurmd -C, because kernel upgrades may give a slightly lower 
RealMemory value in the future and cause problems with the node’s health 
status.

/Ole