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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
#include "mpitestconf.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
static int verbose = 0;
int main(int argc, char *argv[]);
int parse_args(int argc, char **argv);
int main(int argc, char *argv[])
{
/* Variable declarations */
int a[100][100], b[100][100];
MPI_Datatype row, xpose;
MPI_Aint sizeofint, tmp_lb;
int errs = 0;
int bufsize, position = 0;
void *buffer;
int i, j;
/* Initialize a to some known values. */
for (i = 0; i < 100; i++) {
for (j = 0; j < 100; j++) {
a[i][j] = i * 1000 + j;
b[i][j] = -1;
}
}
/* Initialize MPI */
MTest_Init(&argc, &argv);
parse_args(argc, argv);
MPI_Type_get_extent(MPI_INT, &tmp_lb, &sizeofint);
/* Create datatypes. */
MPI_Type_vector(100, 1, 100, MPI_INT, &row);
MPI_Type_create_hvector(100, 1, sizeofint, row, &xpose);
MPI_Type_commit(&xpose);
/* Pack it. */
MPI_Pack_size(1, xpose, MPI_COMM_WORLD, &bufsize);
buffer = (char *) malloc((unsigned) bufsize);
/* To improve reporting of problems about operations, we
* change the error handler to errors return */
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
MPI_Pack(a, 1, xpose, buffer, bufsize, &position, MPI_COMM_WORLD);
/* Unpack the buffer into b. */
position = 0;
MPI_Unpack(buffer, bufsize, &position, b, 100 * 100, MPI_INT, MPI_COMM_WORLD);
for (i = 0; i < 100; i++) {
for (j = 0; j < 100; j++) {
if (b[i][j] != a[j][i]) {
errs++;
if (verbose)
fprintf(stderr, "b[%d][%d] = %d, should be %d\n", i, j, b[i][j], a[j][i]);
}
}
}
MPI_Type_free(&xpose);
MPI_Type_free(&row);
free(buffer);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
int parse_args(int argc, char **argv)
{
/*
* int ret;
*
* while ((ret = getopt(argc, argv, "v")) >= 0)
* {
* switch (ret) {
* case 'v':
* verbose = 1;
* break;
* }
* }
*/
if (argc > 1 && strcmp(argv[1], "-v") == 0)
verbose = 1;
return 0;
}
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