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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2003 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpi.h"
#include <stdio.h>
#include "mpitest.h"
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
/*
static char MTEST_Descrip[] = "Put with Fence for an indexed datatype";
*/
int CheckMPIErr(int err);
int main(int argc, char *argv[])
{
int errs = 0, err;
int i, rank, size, source, dest;
int blksize, totsize;
int *recvBuf = 0, *srcBuf = 0;
MPI_Comm comm;
MPI_Win win;
MPI_Aint extent;
MPI_Datatype originType;
int counts[2];
int displs[2];
MTest_Init(&argc, &argv);
/* Select the communicator and datatypes */
comm = MPI_COMM_WORLD;
/* Create the datatype */
/* One MPI Implementation fails this test with sufficiently large
* values of blksize - it appears to convert this type to an
* incorrect contiguous move */
blksize = 2048;
counts[0] = blksize;
counts[1] = blksize;
displs[0] = 0;
displs[1] = blksize + 1;
MPI_Type_indexed(2, counts, displs, MPI_INT, &originType);
MPI_Type_commit(&originType);
totsize = 2 * blksize;
/* Determine the sender and receiver */
MPI_Comm_rank(comm, &rank);
MPI_Comm_size(comm, &size);
source = 0;
dest = size - 1;
recvBuf = (int *) malloc(totsize * sizeof(int));
srcBuf = (int *) malloc((totsize + 1) * sizeof(int));
if (!recvBuf || !srcBuf) {
fprintf(stderr, "Could not allocate buffers\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
/* Initialize the send and recv buffers */
for (i = 0; i < totsize; i++) {
recvBuf[i] = -1;
}
for (i = 0; i < blksize; i++) {
srcBuf[i] = i;
srcBuf[blksize + 1 + i] = blksize + i;
}
srcBuf[blksize] = -1;
MPI_Type_extent(MPI_INT, &extent);
MPI_Win_create(recvBuf, totsize * extent, extent, MPI_INFO_NULL, comm, &win);
MPI_Win_fence(0, win);
if (rank == source) {
/* To improve reporting of problems about operations, we
* change the error handler to errors return */
MPI_Win_set_errhandler(win, MPI_ERRORS_RETURN);
err = MPI_Put(srcBuf, 1, originType, dest, 0, totsize, MPI_INT, win);
errs += CheckMPIErr(err);
err = MPI_Win_fence(0, win);
errs += CheckMPIErr(err);
}
else if (rank == dest) {
MPI_Win_fence(0, win);
for (i = 0; i < totsize; i++) {
if (recvBuf[i] != i) {
errs++;
if (errs < 10) {
printf("recvBuf[%d] = %d should = %d\n", i, recvBuf[i], i);
}
}
}
}
else {
MPI_Win_fence(0, win);
}
MPI_Type_free(&originType);
MPI_Win_free(&win);
free(recvBuf);
free(srcBuf);
MTest_Finalize(errs);
MPI_Finalize();
return 0;
}
int CheckMPIErr(int err)
{
int rc = 0;
if (err != MPI_SUCCESS) {
MTestPrintError(err);
rc = 1;
}
return rc;
}
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