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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
int main(int argc, char *argv[])
{
int errs = 0;
MPI_Comm comm;
int minsize = 2, csize, count;
MTest_Init(&argc, &argv);
while (MTestGetIntracommGeneral(&comm, minsize, 1)) {
if (comm == MPI_COMM_NULL)
continue;
MPI_Comm_size(comm, &csize);
count = 128000;
{
int *ap, *bp;
int root;
ap = (int *) malloc(count * sizeof(int));
bp = (int *) malloc(count * sizeof(int));
root = 0;
MPI_Reduce(ap, bp, count, MPI_INT, MPI_SUM, root, comm);
free(ap);
free(bp);
}
MTestFreeComm(&comm);
}
MTest_Finalize(errs);
MPI_Finalize();
return 0;
}
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