[Beowulf] Really efficient MPIs??

stephen mulcahy smulcahy at aplpi.com
Wed Nov 28 08:51:03 EST 2007



Charlie Peck wrote:
> Unless you are using a gigabit ethernet, Open-MPI is noticeably less 
> efficient that LAM-MPI over that fabric.
> 
> I suspect at some point in the future gige will catch-up but for now my 
> (limited) understanding is that the Open-MPI folks are focusing their 
> time on higher bandwidth/lower latency fabrics than gige.

This wasn't our experience in our application which runs over gige (see 
my previous posting).

-stephen

-- 
Stephen Mulcahy, Applepie Solutions Ltd., Innovation in Business Center,
GMIT, Dublin Rd, Galway, Ireland.  +353.91.751262  http://www.aplpi.com
Registered in Ireland, no. 289353 (5 Woodlands Avenue, Renmore, Galway)
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