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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"
/* This test checks request-based get with MPI_Testall. Both the return value of
* MPI_Testall and status.MPI_ERROR should be correctly set.
*
* Thanks for Joseph Schuchart reporting this bug in MPICH and contributing
* the prototype of this test program. */
int main(int argc, char **argv)
{
int rank, size;
MPI_Win win = MPI_WIN_NULL;
int *baseptr = NULL;
int errs = 0, mpi_errno = MPI_SUCCESS;
int val1 = 0, val2 = 0, flag = 0;
MPI_Request reqs[2];
MPI_Status stats[2];
MTest_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
MPI_Win_allocate(2 * sizeof(int), sizeof(int), MPI_INFO_NULL, MPI_COMM_WORLD, &baseptr, &win);
/* Initialize window buffer */
MPI_Win_lock(MPI_LOCK_EXCLUSIVE, rank, 0, win);
baseptr[0] = 1;
baseptr[1] = 2;
MPI_Win_unlock(rank, win);
/* Synchronize the processes before starting the second access epoch */
MPI_Barrier(MPI_COMM_WORLD);
/* Issue request-based get with testall. */
MPI_Win_lock_all(0, win);
MPI_Rget(&val1, 1, MPI_INT, 0, 0, 1, MPI_INT, win, &reqs[0]);
MPI_Rget(&val2, 1, MPI_INT, 0, 1, 1, MPI_INT, win, &reqs[1]);
do {
mpi_errno = MPI_Testall(2, reqs, &flag, stats);
} while (flag == 0);
/* Check get value. */
if (val1 != 1 || val2 != 2) {
printf("%d - Got val1 = %d, val2 = %d, expected 1, 2\n", rank, val1, val2);
fflush(stdout);
errs++;
}
/* Check return error code. */
if (mpi_errno != MPI_SUCCESS) {
printf("%d - Got return errno %d, expected MPI_SUCCESS(%d)\n",
rank, mpi_errno, MPI_SUCCESS);
fflush(stdout);
errs++;
}
MPI_Win_unlock_all(win);
MPI_Barrier(MPI_COMM_WORLD);
MPI_Win_free(&win);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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