[Beowulf] Really efficient MPIs??
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stephen mulcahy smulcahy at aplpi.comWed Nov 28 05:51:03 PST 2007
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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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