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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2015 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
/* This is a very weak sanity test that all nonblocking collectives specified by
* MPI-3 are present in the library and take arguments as expected. This test
* does not check for progress, matching issues, or sensible output buffer
* values. */
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
#define NUM_INTS (2)
#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;
int *scounts = NULL;
int *rcounts = NULL;
int *sdispls = NULL;
int *rdispls = NULL;
int *types = NULL;
MPI_Comm comm;
/* intentionally not using MTest_Init/MTest_Finalize in order to make it
* easy to take this test and use it as an NBC sanity test outside of the
* MPICH test suite */
MPI_Init(&argc, &argv);
comm = MPI_COMM_WORLD;
MPI_Comm_size(comm, &size);
MPI_Comm_rank(comm, &rank);
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
/* enough space for every process to contribute at least NUM_INTS ints to any
* collective operation */
sbuf = malloc(NUM_INTS * size * sizeof(int));
my_assert(sbuf);
rbuf = malloc(NUM_INTS * size * sizeof(int));
my_assert(rbuf);
scounts = malloc(size * sizeof(int));
my_assert(scounts);
rcounts = malloc(size * sizeof(int));
my_assert(rcounts);
sdispls = malloc(size * sizeof(int));
my_assert(sdispls);
rdispls = malloc(size * sizeof(int));
my_assert(rdispls);
types = malloc(size * sizeof(int));
my_assert(types);
for (i = 0; i < size; ++i) {
sbuf[2 * i] = i;
sbuf[2 * i + 1] = i;
rbuf[2 * i] = i;
rbuf[2 * i + 1] = i;
scounts[i] = NUM_INTS;
rcounts[i] = NUM_INTS;
sdispls[i] = i * NUM_INTS;
rdispls[i] = i * NUM_INTS;
types[i] = MPI_INT;
}
if (rank == 0 && MPI_SUCCESS ==
MPI_Gather(sbuf, NUM_INTS, MPI_INT, sbuf, NUM_INTS, MPI_INT, 0, comm))
errs++;
if (rank == 0 && MPI_SUCCESS ==
MPI_Gatherv(sbuf, NUM_INTS, MPI_INT, sbuf, rcounts, rdispls, MPI_INT, 0, comm))
errs++;
if (rank == 0 && MPI_SUCCESS ==
MPI_Scatter(sbuf, NUM_INTS, MPI_INT, sbuf, NUM_INTS, MPI_INT, 0, comm))
errs++;
if (rank == 0 && MPI_SUCCESS ==
MPI_Scatterv(sbuf, scounts, sdispls, MPI_INT, sbuf, NUM_INTS, MPI_INT, 0, comm))
errs++;
if (MPI_SUCCESS == MPI_Allgather(&sbuf[rank], 1, MPI_INT, sbuf, 1, MPI_INT, comm))
errs++;
if (MPI_SUCCESS ==
MPI_Allgatherv(&sbuf[rank * rcounts[rank]], rcounts[rank], MPI_INT, sbuf, rcounts, rdispls,
MPI_INT, comm))
errs++;
if (MPI_SUCCESS == MPI_Alltoall(sbuf, NUM_INTS, MPI_INT, sbuf, NUM_INTS, MPI_INT, comm))
errs++;
if (MPI_SUCCESS ==
MPI_Alltoallv(sbuf, scounts, sdispls, MPI_INT, sbuf, scounts, sdispls, MPI_INT, comm))
errs++;
if (MPI_SUCCESS ==
MPI_Alltoallw(sbuf, scounts, sdispls, types, sbuf, scounts, sdispls, types, comm))
errs++;
if (rank == 0 && MPI_SUCCESS == MPI_Reduce(sbuf, sbuf, NUM_INTS, MPI_INT, MPI_SUM, 0, comm))
errs++;
if (MPI_SUCCESS == MPI_Allreduce(sbuf, sbuf, NUM_INTS, MPI_INT, MPI_SUM, comm))
errs++;
if (MPI_SUCCESS == MPI_Reduce_scatter(sbuf, sbuf, rcounts, MPI_INT, MPI_SUM, comm))
errs++;
if (MPI_SUCCESS == MPI_Reduce_scatter_block(sbuf, sbuf, NUM_INTS, MPI_INT, MPI_SUM, comm))
errs++;
if (MPI_SUCCESS == MPI_Scan(sbuf, sbuf, NUM_INTS, MPI_INT, MPI_SUM, comm))
errs++;
if (MPI_SUCCESS == MPI_Exscan(sbuf, sbuf, NUM_INTS, MPI_INT, MPI_SUM, comm))
errs++;
if (sbuf)
free(sbuf);
if (rbuf)
free(rbuf);
if (scounts)
free(scounts);
if (rcounts)
free(rcounts);
if (sdispls)
free(sdispls);
if (rdispls)
free(rdispls);
if (rank == 0) {
if (errs)
fprintf(stderr, "Found %d errors\n", errs);
else
printf(" No errors\n");
}
MPI_Finalize();
return 0;
}
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