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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdlib.h>
#include <stdio.h>
#include <mpi.h>
#include "mpitest.h"
#define BUFSIZE (128*1024)
int main(int argc, char *argv[])
{
int i, rank, size;
int *buf;
MPI_Win win;
MTest_Init(&argc, &argv);
buf = malloc(BUFSIZE);
MTEST_VG_MEM_INIT(buf, BUFSIZE);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size != 2) {
printf("test must be run with 2 processes!\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
if (rank == 0)
MPI_Win_create(buf, BUFSIZE, sizeof(int), MPI_INFO_NULL, MPI_COMM_WORLD, &win);
else
MPI_Win_create(MPI_BOTTOM, 0, 1, MPI_INFO_NULL, MPI_COMM_WORLD, &win);
MPI_Win_fence(0, win);
if (rank == 1) {
for (i = 0; i < 100000; i++)
MPI_Get(buf, BUFSIZE / sizeof(int), MPI_INT, 0, 0, BUFSIZE / sizeof(int), MPI_INT, win);
}
MPI_Win_fence(0, win);
MPI_Win_free(&win);
free(buf);
MTest_Finalize(0);
return 0;
}
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