Hi all,we recently got ourselves some Power9 nodes with 4-way SMT. However, other than using --exclusive I cannot seem to find a possibility to make SLURM allocate all SMT threads for me. There simply does not seem to exist a parameter for that. One might think that --threads-per-core would be right, but this only limits the job to run on nodes that have ThreadsPerCore=x set, it does not actually allocate the CPUs.
Also, I cannot use more than -c 44 even though the node has CPUTot=176, so it's not possible to allocate all (virtual) cores.
So, how can this be done? Here are some relevant SLURM config settings:NodeName=taurusml[1-22] Feature=IB Gres=gpu:6 Procs=176 Sockets=2 CoresPerSocket=22 ThreadsPerCore=4 RealMemory=450000 Weight=128
TaskPlugin = task/cgroup TaskPluginParam = cpusets,autobind=threads Still on SLURM 17.02.11 if that is relevant. Thanks in advance. -- Maik Schmidt HPC Services Technische Universität Dresden Zentrum für Informationsdienste und Hochleistungsrechnen (ZIH) Willers-Bau A116 D-01062 Dresden Telefon: +49 351 463-32836
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