31 строка
735 B
C
31 строка
735 B
C
/* -*- C -*-
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*
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* $HEADER$
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*
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* The most basic of MPI applications
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*/
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#include <stdio.h>
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#include "mpi.h"
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int main(int argc, char* argv[])
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{
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int rank, size, univ_size;
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char hostname[512];
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void *appnum;
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int flag;
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MPI_Init(&argc, &argv);
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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MPI_Comm_size(MPI_COMM_WORLD, &size);
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MPI_Comm_get_attr(MPI_COMM_WORLD, MPI_APPNUM, &appnum, &flag);
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MPI_Comm_get_attr(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, &univ_size, &flag);
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gethostname(hostname, 512);
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printf("Hello, World, I am %d of %d on host %s from app number %d universe size %d\n",
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rank, size, hostname, *(int*)appnum, *(int*)univ_size);
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MPI_Finalize();
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return 0;
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}
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