MPI: Zen and the Art of MPI Collectives
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Posted by Kenneth Farmer, Thursday December 01 2005 @ 03:56PM EST
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ClusterMonkey: When the grass grows in parallel, do they know about each other? Do they coordinate? Perhaps they have some kind of collective intelligence? Do they use MPI?
In previous editions of this column, we've talked about the 6 basic functions of MPI, how MPI_INIT and MPI_FINALIZE actually work, and discussed in agonizing detail the differences between MPI ranks, MPI processes, and CPU processors. Armed with this knowledge, you can write large, sophisticated parallel programs. So what's next?
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