badport.c

来自「fortran并行计算包」· C语言 代码 · 共 48 行

/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
 *  (C) 2006 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */
#include "mpi.h"
#include <stdio.h>

/* Set verbose to 1 to see the error message */
static int verbose = 0;

int main( int argc, char *argv[] )
{
    int ierr, errs=0;
    MPI_Comm newcomm;

    MPI_Init( &argc, &argv );

    MPI_Comm_set_errhandler( MPI_COMM_WORLD, MPI_ERRORS_RETURN );
    ierr = MPI_Comm_connect( "myhost:27", MPI_INFO_NULL, 0, 
			     MPI_COMM_WORLD, &newcomm );
    if (ierr == MPI_SUCCESS) {
	errs++;
	printf( "Comm_connect returned success with bogus port\n" );
	MPI_Comm_free( &newcomm );
    }
    else {
	if (verbose) {
	    char str[MPI_MAX_ERROR_STRING];
	    int  slen;
	    /* Check the message */
	    MPI_Error_string( ierr, str, &slen );
	    printf( "Error message is: %s\n", str );
	}
    }
    fflush(stdout);

    if (errs) {
	printf( " Found %d errors\n", errs );
    }
    else
	printf( " No Errors\n" );

    MPI_Finalize();

    return 0;
}