zeroparms.c

来自「fortran并行计算包」· C语言 代码 · 共 39 行

/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
 *  (C) 2001 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */
#include "mpi.h"

#include <stdio.h>

int main( int argc, char *argv[] )
{
    MPI_Datatype newtype;
    int b[1], d[1];

    MPI_Init( 0, 0 );

    /* create a legitimate type to see that we don't 
     * emit spurious errors.
     */
    MPI_Type_hvector( 0, 1, 10, MPI_DOUBLE, &newtype );
    MPI_Type_commit( &newtype );
    MPI_Type_free( &newtype );

    MPI_Type_indexed( 0, b, d, MPI_DOUBLE, &newtype );
    MPI_Type_commit( &newtype );

    MPI_Sendrecv( b, 1, newtype, 0, 0, 
		  d, 0, newtype, 0, 0, 
		  MPI_COMM_WORLD, MPI_STATUS_IGNORE );

    printf( " No Errors\n" );

    MPI_Type_free( &newtype );
    
    MPI_Finalize();

    return 0;
}