/* -*- 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 <string.h>

#include "mpitest.h"

/* These counts allow reasonable sizes for the large tests */

#define LARGE_CNT_CONTIG    550000000

#define LARGE_CNT_NONCONTIG 150000000

/*

static char MTEST_Descrip[] = "Put with Fence";

*/

static inline int test(MPI_Comm comm, int rank, int source, int dest,

                       MTestDatatype * sendtype, MTestDatatype * recvtype)

{

    int errs = 0, err;

    MPI_Aint extent, lb;

    MPI_Win win;

    MTestPrintfMsg(1,

                   "Putting count = %ld of sendtype %s - count = %ld receive type %s\n",

                   sendtype->count, MTestGetDatatypeName(sendtype), recvtype->count,

                   MTestGetDatatypeName(recvtype));

    /* Make sure that everyone has a recv buffer */

    recvtype->InitBuf(recvtype);

    MPI_Type_extent(recvtype->datatype, &extent);

    MPI_Type_lb(recvtype->datatype, &lb);

    MPI_Win_create(recvtype->buf, recvtype->count * extent + lb, 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);

        sendtype->InitBuf(sendtype);

        err = MPI_Put(sendtype->buf, sendtype->count,

                      sendtype->datatype, dest, 0, recvtype->count, recvtype->datatype, win);

        if (err) {

            errs++;

            if (errs < 10) {

                MTestPrintError(err);

            }

        }

        err = MPI_Win_fence(0, win);

        if (err) {

            errs++;

            if (errs < 10) {

                MTestPrintError(err);

            }

        }

    }

    else if (rank == dest) {

        MPI_Win_fence(0, win);

        /* This should have the same effect, in terms of

         * transfering data, as a send/recv pair */

        err = MTestCheckRecv(0, recvtype);

        if (err) {

            if (errs < 10) {

                printf

                    ("Data in target buffer did not match for destination datatype %s (put with source datatype %s)\n",

                     MTestGetDatatypeName(recvtype), MTestGetDatatypeName(sendtype));

                /* Redo the test, with the errors printed */

                recvtype->printErrors = 1;

                (void) MTestCheckRecv(0, recvtype);

            }

            errs += err;

        }

    }

    else {

        MPI_Win_fence(0, win);

    }

    MPI_Win_free(&win);

    return errs;

}

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

{

    int errs = 0;

    int rank, size, source, dest;

    int minsize = 2, count;

    MPI_Comm comm;

    MTestDatatype sendtype, recvtype;

    MTest_Init(&argc, &argv);

    /* The following illustrates the use of the routines to

     * run through a selection of communicators and datatypes.

     * Use subsets of these for tests that do not involve combinations

     * of communicators, datatypes, and counts of datatypes */

    while (MTestGetIntracommGeneral(&comm, minsize, 1)) {

        if (comm == MPI_COMM_NULL)

            continue;

        /* Determine the sender and receiver */

        MPI_Comm_rank(comm, &rank;;

        MPI_Comm_size(comm, &size);

        source = 0;

        dest = size - 1;

        MTEST_DATATYPE_FOR_EACH_COUNT(count) {

            while (MTestGetDatatypes(&sendtype, &recvtype, count)) {

                errs += test(comm, rank, source, dest, &sendtype, &recvtype);

                MTestFreeDatatype(&sendtype);

                MTestFreeDatatype(&recvtype);

            }

        }

        MTestFreeComm(&comm);

    }

    /* Part #2: simple large size test - contiguous and noncontiguous */

    if (sizeof(void *) > 4) {   /* Only if > 32-bit architecture */

        MPI_Comm_rank(MPI_COMM_WORLD, &rank;;

        MPI_Comm_size(MPI_COMM_WORLD, &size);

        source = 0;

        dest = size - 1;

        MTestGetDatatypes(&sendtype, &recvtype, LARGE_CNT_CONTIG);

        errs += test(MPI_COMM_WORLD, rank, source, dest, &sendtype, &recvtype);

        do {

            MTestFreeDatatype(&sendtype);

            MTestFreeDatatype(&recvtype);

            MTestGetDatatypes(&sendtype, &recvtype, LARGE_CNT_NONCONTIG);

        } while (strstr(MTestGetDatatypeName(&sendtype), "vector") == NULL);

        errs += test(MPI_COMM_WORLD, rank, source, dest, &sendtype, &recvtype);

        MTestFreeDatatype(&sendtype);

        MTestFreeDatatype(&recvtype);

    }

    MTest_Finalize(errs);

    MPI_Finalize();

    return 0;

}