[Beowulf] bizarre scaling behavior on a Nehalem

Rahul Nabar rpnabar at gmail.com
Tue Aug 11 14:57:14 EDT 2009


On Tue, Aug 11, 2009 at 12:40 PM, Craig Tierney<Craig.Tierney at noaa.gov> wrote:
> What are you doing to ensure that you have both memory and processor
> affinity enabled?
>

All I was using now was the flag:

--mca mpi_paffinity_alone 1

Is there anything else I ought to be doing as well?

-- 
Rahul
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