[molpro-user] memory usage

[Neeraj Rai]

Keith,

  Memory is per process so if you are 128 cores then you will need 128*7000
mW of memory. If your job needs more memory then you can reduce number of
cores that you are requesting.

On Thu, May 3, 2012 at 6:51 PM, Keith McLaughlin <keythree at gmail.com> wrote:

> Hi all,
>
> I'm having a lot of problem completing jobs on blacklight, which is a
> machine at the Pittsburgh Supercomputing Center.
>
> I'm trying to run a job requesting 7000,m. That is, 7000 megawords, which
> I thought would be 54 gigabytes. My job winds up dying (when run on 128
> cores = 8 blades @ 128 GIGS per blade, which means I have access to a
> terabyte of memory. Yet, my job is killed with the following error message:
>
> Creating: host=bl0.psc.teragrid.o=>> PBS: job killed: cpuset
> memory_pressure 139111 reached/exceeded limit 1 (numa memused is 1073599536
> kb)
>
> Is this behavior understood? Why would my job possibly be using that much
> memory? I've been in contact with PSC support, but they believe this is a
> Molpro issue.
>
>
> --
> Keith McLaughlin, M.S.
> University of South Florida
> Dept. of Physics/Chemistry
> home.3mcs.info
>
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>



-- 
Regards,
Neeraj.
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