[mvapich-discuss] Disable CPU Binding

[Stephen Cousins]

Hi Brock,

Try setting environment variable:

MV2_ENABLE_AFFINITY=0

prior to running your program. Or put that in a wrapper for mpiexec or
mpirun depending on what you use.

Steve

On Fri, Aug 31, 2012 at 11:14 AM, Brock Palen <brockp at umich.edu> wrote:
> Is it possible to disable cpu affinity after mvapich has been built?
>
> We have found a bug in our cpuset/cgroup code that as a quick work around disabling affinity of MPI ranks would be helpful for the moment.
>
> Thanks!
>
> Brock Palen
> www.umich.edu/~brockp
> CAEN Advanced Computing
> brockp at umich.edu
> (734)936-1985
>
>
>
>
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-- 
________________________________________________________________
 Steve Cousins             Supercomputer Engineer/Administrator
 Advanced Computing Group            University of Maine System
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