[torqueusers] Re: Memory Limits with torque/maui & enforcement

Josh Butikofer josh at clusterresources.com
Thu Sep 18 13:18:44 MDT 2008


You may want to use pvmem as opposed to just pmem. Sometimes Linux has a hard time enforcing pmem 
because of the way it handles virtual memory. In my experience, pvmem behaves more as expected. I 
would try both out and see which seems to work better in your case.

--Josh B.

Roger Moye wrote:
> 
> Regarding the need to enforce memory limits per process, I believe you 
> want the pmem option.    pmem should set the memory limits for each 
> process within the job.  So, if you use nodes=4:ppn=1,pmem=2000m, you 
> will get 2GB per node on four nodes.  Likewise if you do 
> nodes=4:ppn=2,pmem=2000m, you will get 4GB per node on four nodes.
> 
> Hope this helps.
> 
> -Roger
> 


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