[Beowulf] Really efficient MPIs??
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Charlie Peck charliep at cs.earlham.eduWed Nov 28 05:49:14 PST 2007
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On Nov 28, 2007, at 8:04 AM, Jeffrey B. Layton wrote: > If you don't want to pay money for an MPI, then go with Open-MPI. > It too can run on various networks without recompiling. Plus it's > open-source. 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. charlie
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