[slurm-users] How to enforce memory contrains?

[Hermann Schwärzler]

Hi Rodrigo,

a possible solution is using

VSizeFactor=100

in slurm.conf.

With this settings, programs that try to allocate more memory than 
requested in the job's settings will fail.

Be aware that this puts a limit on *virtual* memory, not on RSS. This 
might or might not be what you want as a lot of programs tend to 
allocate (a lot) more virtual memory than they really use (RSS).

Regards,
Hermann

On 10/5/21 12:46 AM, Rodrigo Santibáñez wrote:
> Hello Slurm Users,
> 
> I'm having a hard time configuring slurm to kill jobs when they use more 
> memory than requested. Also, I can't make jobs use only RAM, and some of 
> them starts to use SWAP.
> 
> I don't know what I'm missing.
> 
> Thanks for your help
> 
> slurmd -V
> slurm 20.02.6
> 
> slurm.conf
> TaskPlugin=task/affinity,task/cgroup
> ProctrackType=proctrack/cgroup
> 
> cgroup.conf
> AllowedRAMSpace=100.0
> AllowedSwapSpace=0.0
> ConstrainRAMSpace=yes
> ConstrainSwapSpace=yes
> MemorySwappiness=0
> CgroupAutomount=yes
> ConstrainCores=yes

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