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From: Sefa Arslan (sefa_at_[hidden])
Date: 2007-05-12 05:25:12


I need to use rank of the mpi processes in my sub functions ( c
language). which one has more cost?;
    creating a new variable& and finding the rank in each sub function by:
        int mpi_rank;

    or finding the rank in main function once, and every time sending
this information to the functions in function arguments like