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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 Bcast handled mismatched lengths (while not a
common user error, we've seen it several times, so good handling of
this helps to reduce bug reports)
*/
int verbose = 0;
int main(int argc, char *argv[])
{
int buf[10], ierr, errs = 0;
int rank;
char str[MPI_MAX_ERROR_STRING + 1];
int slen;
MTEST_VG_MEM_INIT(buf, 10 * sizeof(int));
MTest_Init(&argc, &argv);
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (rank == 0) {
ierr = MTest_Bcast(buf, 1, MPI_INT, 0, MPI_COMM_WORLD);
} else {
ierr = MTest_Bcast(buf, 10, MPI_INT, 0, MPI_COMM_WORLD);
}
if (ierr == MPI_SUCCESS) {
if (rank != 0) {
/* The root process may not detect that a too-long buffer
* was provided by the non-root processes, but those processes
* should detect this. */
errs++;
printf("Did not detect mismatched length (long) on process %d\n", rank);
}
} else {
if (verbose) {
MPI_Error_string(ierr, str, &slen);
printf("Found expected error; message is: %s\n", str);
}
}
if (rank == 0) {
ierr = MTest_Bcast(buf, 10, MPI_INT, 0, MPI_COMM_WORLD);
} else {
ierr = MTest_Bcast(buf, 1, MPI_INT, 0, MPI_COMM_WORLD);
}
if (ierr == MPI_SUCCESS) {
if (rank != 0) {
/* The root process may not detect that a too-short buffer
* was provided by the non-root processes, but those processes
* should detect this. */
errs++;
printf("Did not detect mismatched length (short) on process %d\n", rank);
}
} else {
if (verbose) {
MPI_Error_string(ierr, str, &slen);
printf("Found expected error; message is: %s\n", str);
}
}
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_ARE_FATAL);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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