1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
3 * (C) 2013 by Argonne National Laboratory.
4 * See COPYRIGHT in top-level directory.
10 #define MAX_COUNT 4096
12 int main(int argc, char *argv[])
14 int i, winbuf, one = 1, rank;
17 MPI_Init(&argc, &argv);
18 MPI_Comm_rank(MPI_COMM_WORLD, &rank);
20 MPI_Win_create(&winbuf, sizeof(int), sizeof(int), MPI_INFO_NULL, MPI_COMM_WORLD, &win);
22 MPI_Win_fence(0, win);
23 for (i = 0; i < MAX_COUNT; i++)
24 MPI_Accumulate(&one, 1, MPI_INT, 0, 0, 1, MPI_INT, MPI_SUM, win);
25 MPI_Win_fence(0, win);
30 printf(" No Errors\n");