/* -*- 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 <stdlib.h>

#include <string.h>

#include "mpitest.h"

/*

static char MTEST_Descrip[] = "RMA to self";

*/

int main(int argc, char *argv[])

{

    int errs = 0;

    int rank, size, i, j;

    MPI_Comm comm;

    MPI_Win win;

    int *winbuf, count;

    int *sbuf, scount, vcount;

    MPI_Datatype vectype;

    MTest_Init(&argc, &argv);

    comm = MPI_COMM_WORLD;

    MPI_Comm_rank(comm, &rank;;

    MPI_Comm_size(comm, &size);

    /* Allocate and initialize sbuf */

    scount = 1000;

    count = 1000;

    sbuf = (int *) malloc(scount * sizeof(int));

    if (!sbuf) {

        fprintf(stderr, "Could not allocate send buffer f size %d\n", scount);

        MPI_Abort(MPI_COMM_WORLD, 0);

    }

    for (i = 0; i < scount; i++)

        sbuf[i] = i;

    MPI_Alloc_mem(count * sizeof(int), MPI_INFO_NULL, &winbuf);

    /* This is a simple vector type */

    vcount = count / 4;

    MPI_Type_vector(vcount, 1, 2, MPI_INT, &vectype);

    MPI_Type_commit(&vectype);

    MPI_Win_create(winbuf, count * sizeof(int), sizeof(int), MPI_INFO_NULL, comm, &win);

    /* Check with different combination of types, including non-contig on

     * both sides */

    /* Clear winbuf */

    memset(winbuf, 0, count * sizeof(int));

    MPI_Win_lock(MPI_LOCK_EXCLUSIVE, rank, 0, win);

    MPI_Put(sbuf, 1, vectype, rank, 0, 1, vectype, win);

    MPI_Win_unlock(rank, win);

    /* Check results */

    j = 0;

    for (i = 0; i < vcount; i++) {

        if (winbuf[j] != sbuf[j]) {

            errs++;

            fprintf(stderr, "VecPut: winbuf[%d] = %d, should = %d\n", j, winbuf[j], sbuf[j]);

        }

        j += 2;

    }

    memset(winbuf, 0, count * sizeof(int));

    MPI_Win_lock(MPI_LOCK_SHARED, rank, 0, win);

    MPI_Accumulate(sbuf, 1, vectype, rank, 0, 1, vectype, MPI_SUM, win);

    MPI_Win_unlock(rank, win);

    /* Check results */

    j = 0;

    for (i = 0; i < vcount; i++) {

        if (winbuf[j] != sbuf[j]) {

            errs++;

            fprintf(stderr, "VecAcc: winbuf[%d] = %d, should = %d\n", j, winbuf[j], sbuf[j]);

        }

        j += 2;

    }

    /* Now, use get to fetch back the results that we just wrote */

    memset(sbuf, 0, count * sizeof(int));

    MPI_Win_lock(MPI_LOCK_SHARED, rank, 0, win);

    MPI_Get(sbuf, 1, vectype, rank, 0, 1, vectype, win);

    MPI_Win_unlock(rank, win);

    /* Check results */

    j = 0;

    for (i = 0; i < vcount; i++) {

        if (winbuf[j] != sbuf[j]) {

            errs++;

            fprintf(stderr, "VecAcc: winbuf[%d] = %d, should = %d\n", j, winbuf[j], sbuf[j]);

        }

        j += 2;

    }

    MPI_Win_free(&win);

    MPI_Free_mem(winbuf);

    free(sbuf);

    MPI_Type_free(&vectype);

    MTest_Finalize(errs);

    return MTestReturnValue(errs);

}