30 строки
643 B
C
30 строки
643 B
C
#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <semaphore.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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MPI_Comm parent;
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MPI_Comm merged;
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int rank;
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int size;
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MPI_Init(&argc, &argv);
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printf("Child: launch\n");
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MPI_Comm_get_parent(&parent);
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MPI_Intercomm_merge(parent, 1, &merged);
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MPI_Comm_rank(merged, &rank);
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MPI_Comm_size(merged, &size);
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printf("Child merged rank = %d, size = %d\n", rank, size);
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MPI_Comm_free(&merged);
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MPI_Finalize();
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printf("Child %d: exiting\n", (int)getpid());
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return 0;
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}
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