infotest.c

mpi并行计算的c++代码 可用vc或gcc编译通过 可以用来搭建并行计算试验环境

/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
 *  (C) 2001 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */
/* Simple info test */

#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitestconf.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif

int main( int argc, char *argv[] )
{
    MPI_Info i1, i2;
    int errs = 0;
    char value[64];
    int flag;

    MPI_Init( 0, 0 );
    
    MPI_Info_create( &i1 );
    MPI_Info_create( &i2 );

    MPI_Info_set( i1, "key1", "value1" );
    MPI_Info_set( i2, "key2", "value2" );

    MPI_Info_get( i1, "key2", 64, value, &flag );
    if (flag) {
	printf( "Found key2 in info1\n" );
	errs ++;
    }
    MPI_Info_get( i1, "key1", 64, value, &flag );
    if (!flag) {
	errs++;
	printf( "Did not find key1 in info1\n" );
    }
    else if (strcmp( value, "value1" )) {
	errs++;
	printf( "Found wrong value (%s), expected value1\n", value );
    }

    MPI_Info_free( &i1 );
    MPI_Info_free( &i2 );
    if (errs) {
	printf( " Found %d errors\n", errs );
    }
    else {
	printf( " No Errors\n" );
    }
    MPI_Finalize( );
    return 0;
}