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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdio.h>
#include <assert.h>
#include "mpi.h"
#include "mpitest.h"
int main(int argc, char *argv[])
{
MPI_Request request;
int size, rank;
int one = 1, two = 2, isum, sum;
MTest_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
assert(size == 2);
MPI_Iallreduce(&one, &isum, 1, MPI_INT, MPI_SUM, MPI_COMM_WORLD, &request);
MPI_Allreduce(&two, &sum, 1, MPI_INT, MPI_SUM, MPI_COMM_WORLD);
MPI_Wait(&request, MPI_STATUS_IGNORE);
assert(isum == 2);
assert(sum == 4);
MTest_Finalize(0);
return 0;
}
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