[slurm-users] Question concerning cgroups and

[Juergen Salk]

Hi Michael,

not sure if this is the root cause of your problem, but SchedMD
recommends to set TaskAffinity to "no" in cgroup.conf when using both,
task/affinity and task/cgroup, together for TaskPlugin in slurm.conf
(see the NOTE for TaskPlugin in slurm.conf).

Best regards
Juergen Salk

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Jürgen Salk
Scientific Software & Compute Services (SSCS)
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Universität Ulm
Telefon: +49 (0)731 50-22478
Telefax: +49 (0)731 50-22471

* Michael Neff <Michael.Neff at EMEA.NEC.COM> [200117 09:24]:
> Hi,
> 
> I am currently trying to set up Slurm  19.05.05 under centos 7.5 with the settings below.
> 
> ProctrackType=proctrack/cgroup
> TaskPlugin=task/cgroup,task/affinity
> TaskPluginParam=Cpusets,Autobind=Threads
> SelectType=select/cons_res
> SelectTypeParameters=CR_One_Task_Per_Core,CR_Core,CR_Pack_Nodes
> 
> ###
> # Slurm cgroup support configuration file
> ###
> CgroupAutomount=yes
> CgroupMountpoint=/sys/fs/cgroup
> ConstrainCores=yes
> TaskAffinity=yes
> #
> 
> I always end up with all tasks  for a node running on one core.
> 
> Any suggestions?
> 
> Best regards,
> Michael
> 
> 
> Dr. Michael Neff
> System Engineer
> System Integration and Support
> NEC Deutschland GmbH
> HPCE Division
> 
> Raiffeisenstr. 14, D-70771 Leinfelden-Echterdingen, Germany
> Tel: +49 711 780 55 44
> Mobil: 0152 22 85 15 54
> Fax: +49 711 780 55 25
> ------------------------------------------------------------------------------
> NEC Deutschland GmbH, Fritz-Vomfelde-Straße 14-16, D-40547 Duesseldorf, Germany
> Geschäftsführer: Yuichi Kojima     Handelsregister Düsseldorf HRB 579413
> 

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