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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdio.h>
#include "mpi.h"
#include "mpitest.h"
#define ELEM_PER_PROC 1
static int errs = 0;
int main(int argc, char *argv[])
{
int rank, nprocs;
int shm_rank, shm_nprocs;
MPI_Comm shm_comm;
MPI_Win shm_win;
int *my_base;
int one = 1;
int result_data;
MTest_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
/* run with two processes. */
MPI_Comm_split_type(MPI_COMM_WORLD, MPI_COMM_TYPE_SHARED, rank, MPI_INFO_NULL, &shm_comm);
MPI_Comm_rank(shm_comm, &shm_rank);
MPI_Comm_size(shm_comm, &shm_nprocs);
if (shm_nprocs >= 2) {
MPI_Win_allocate_shared(sizeof(int) * ELEM_PER_PROC, sizeof(int), MPI_INFO_NULL,
shm_comm, &my_base, &shm_win);
/* Test for FENCE with no asserts. */
if (shm_rank == 1) {
*my_base = 0;
MPI_Win_fence(0, shm_win);
MPI_Win_fence(0, shm_win);
if (my_base[0] != one) {
errs++;
printf("Expected: my_base[0] = %d Actual: my_base[0] = %d\n", one, my_base[0]);
}
}
if (shm_rank == 0) {
MPI_Win_fence(0, shm_win);
MPI_Put(&one, 1, MPI_INT, 1, 0, 1, MPI_INT, shm_win);
MPI_Win_fence(0, shm_win);
}
/* Other ranks simply join fence */
if (shm_rank > 1) {
MPI_Win_fence(0, shm_win);
MPI_Win_fence(0, shm_win);
}
/* Test for FENCE with assert MPI_MODE_NOPRECEDE. */
if (shm_rank == 1) {
MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 1, 0, shm_win);
MPI_Put(&one, 1, MPI_INT, 1, 0, 1, MPI_INT, shm_win);
MPI_Win_unlock(1, shm_win);
MPI_Win_fence(MPI_MODE_NOPRECEDE, shm_win);
MPI_Win_fence(0, shm_win);
}
if (shm_rank == 0) {
result_data = 0;
MPI_Win_fence(MPI_MODE_NOPRECEDE, shm_win);
MPI_Get(&result_data, 1, MPI_INT, 1, 0, 1, MPI_INT, shm_win);
MPI_Win_fence(0, shm_win);
if (result_data != one) {
errs++;
printf("Expected: result_data = %d Actual: result_data = %d\n", one, result_data);
}
}
/* Other ranks simply join fence */
if (shm_rank > 1) {
MPI_Win_fence(MPI_MODE_NOPRECEDE, shm_win);
MPI_Win_fence(0, shm_win);
}
MPI_Win_free(&shm_win);
}
MPI_Comm_free(&shm_comm);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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