[mpich-discuss] General Scalability Question
balaji at mcs.anl.gov
Mon Oct 26 10:59:26 CDT 2009
On 10/26/2009 10:56 AM, Hiatt, Dave M wrote:
> I'm on 1.07 so perhaps it's an artifact of that, but we clearly got a
> increase in sockets being opened on node 0 as we added processes.
> Upping it isn't a big deal, but things did get sluggish, so something
> was going on. But again, I understand that 1.1 I think has Nemesis
> as the default, and perhaps that's much better in this regard.
Yeah, nemesis is much better optimized for multi-core systems. You
should give it a shot.
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