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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2010 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*
* Portions of this code were written by Intel Corporation.
* Copyright (C) 2011-2019 Intel Corporation. Intel provides this material
* Argonne National Laboratory subject to Software Grant and Corporate
* Contributor License Agreement dated February 8, 2012.
*/
/* This is a very weak sanity test that persistent Alltoall collectives specified by
* proposed MPI-4 is present in the library and take arguments as expected. This test
* does not check for progress or matching issues. */
#include "mpi.h"
#include "mpitest.h"
#include <stdio.h>
#include <stdlib.h>
#define my_assert(cond_) \
do { \
if (!(cond_)) { \
fprintf(stderr, "assertion (%s) failed, aborting\n", #cond_); \
MPI_Abort(MPI_COMM_WORLD, 1); \
} \
} while (0)
int main(int argc, char **argv)
{
int errs = 0;
int i;
int rank, size;
int *sbuf = NULL;
int *rbuf = NULL;
MPI_Comm comm;
int iters = 10;
int j = 0;
int count = 1; /* sendcount and recvcount. */
MTest_Init(&argc, &argv);
comm = MPI_COMM_WORLD;
MPI_Comm_size(comm, &size);
MPI_Comm_rank(comm, &rank);
sbuf = malloc(size * count * sizeof(int));
rbuf = malloc(size * count * sizeof(int));
my_assert(sbuf);
my_assert(rbuf);
for (i = 0; i < (count * size); ++i) {
sbuf[i] = (rank * size) + i;
}
for (i = 0; i < (size * count); ++i) {
rbuf[i] = 0;
}
MPI_Info info;
MPI_Info_create(&info);
MPI_Request req;
MPI_Alltoall_init(sbuf, count, MPI_INT, rbuf, count, MPI_INT, comm, info, &req);
for (i = 0; i < iters; i++) {
MPI_Start(&req);
MPI_Wait(&req, MPI_STATUS_IGNORE);
/* Check the results */
for (j = 0; j < (size * count); j++) {
int result = (size * j) + rank;
if (rbuf[j] != result) {
errs++;
if (errs < 10) {
fprintf(stderr, "rbuf[%d] = %d expected %d\n", j, rbuf[j], result);
}
}
}
}
MPI_Request_free(&req);
MPI_Info_free(&info);
free(sbuf);
free(rbuf);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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