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On Thursday 11 January 2007 16:46, Alessandro Yoshi Polliotti wrote: |
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> I hope I'm not asking anything too obvious but I wasn't able to find |
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> relevant information online. |
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> |
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> I have installed apbs enabling mpi, it works but it detects only one cpu in |
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> my core duo system. Strictly speaking it's correct, but not quite what I |
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> expected. I would like to know more about this behaviour, is it due to my |
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> misconfiguration of apbs, mpi, kernel or other factors? |
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> |
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> Besides this, trying to make apbs detect my two cores I tried also mpich2 |
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> and lam-mpi as mpi implementations. Using both of them and recompiling |
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> maloc apbs will complain that maloc has not been compiled with mpi support, |
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> and will keep mpi out of the build process. maloc however doesn't print any |
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> warning. |
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> |
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> Thanks in advance |
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> |
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> -- |
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> "Because while the truncheon may be used in lieu of conversation, words |
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> will always retain their power. Words offer the means to meaning, and for |
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> those who will listen, the annunciation of truth." |
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> V for Vendetta |
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Hey! |
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This may be slightly OT, and I dont know apbs, but are you sure that MPI is |
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what you need? To my knowledge, MPI is for distributed computing, i.e. when |
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you have several nodes to do calculating work. |
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As far as I understand you only have one computer. Wouldn't some shared memory |
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parallel implementation like OpenMP make more sense? You might want to check |
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if your application is multithreaded. If it is, and you're just using one |
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machine it should already use both cores available in your system. No need |
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for MPI in this case. |
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Cheers, |
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Ben |
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-- |
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