Hallo Mark, Mittwoch, 23. April 2008, meintest Du:
>> Can anyone give me a quick comparison of OpenMPI vs. MPICH? I've always >> used MPICH (I never liked lam), and just recently heard about OpenMPI. >> Anyone here using it? MH> openmpi is a genetic descendent of lam (with significant other contributors, MH> of course). I have not seen any good comparison which makes technical or MH> performance arguments in favor of open-mpi vs mpich, unfortunately. From what i saw OpenMPI has several advantages: - better control of jobs, better integration with queuing systems - better performance on MultiCore Systems because of good shared-memory-implementation - without having a real proof: i had the feeling that complex operations are more efficient in OpenMPI - support for a lot of Interconnects beside TCP/IP based communication I don't see a real point chosing mpich over OpenMPI. Cheers, Jan
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