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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdio.h>
#include "mpi.h"
#include "mpitest.h"
#include "mpicolltest.h"
/* Very simple test that Reduce handled mismatched operator
Extended from bcastlength.c
*/
int verbose = 0;
int main(int argc, char *argv[])
{
const int size = 10;
int buf[size], recvbuf[size], ierr, errs = 0;
int rank;
char str[MPI_MAX_ERROR_STRING + 1];
int slen;
int i = 0;
MTEST_VG_MEM_INIT(buf, size * sizeof(int));
MTest_Init(&argc, &argv);
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
for (i = 0; i < size; ++i) {
buf[i] = recvbuf[i] = rank + 1;
}
if (rank == 0) {
ierr = MTest_Reduce(buf, recvbuf, size, MPI_INT, MPI_PROD, 0, MPI_COMM_WORLD);
} else {
ierr = MTest_Reduce(buf, recvbuf, size, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);
}
if (ierr == MPI_SUCCESS) {
if (rank != 0) {
/* The root process may not detect that a mismatched operator
* was provided by the non-root processes, but the root
* should detect this. */
errs++;
printf("Did not detect mismatched operator on process %d\n", rank);
}
} else {
if (verbose) {
MPI_Error_string(ierr, str, &slen);
printf("Found expected error; message is: %s\n", str);
}
}
if (verbose && rank == 0) {
printf("Result : \n");
for (i = 0; i < size; i++) {
printf("%d, ", recvbuf[i]);
}
printf("\n");
}
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_ARE_FATAL);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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