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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2003 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpi.h"
#include <stdio.h>
#include "mpitest.h"
int prodof(int ndims, const int dims[]);
int increasing(int ndims, const int dims[]);
int prodof(int ndims, const int dims[])
{
int i, prod = 1;
for (i = 0; i < ndims; i++)
prod *= dims[i];
return prod;
}
int increasing(int ndims, const int dims[])
{
int i, err = 0;
for (i = 1; i < ndims; i++) {
if (dims[i] > dims[i - 1]) {
printf("%d = dims[%d] > dims[%d] = %d\n", dims[i], i, i - 1, dims[i - 1]);
err = 1;
}
}
return err;
}
int main(int argc, char *argv[])
{
int errs = 0;
int dims[4], nnodes, ndims;
MTest_Init(&argc, &argv);
/* Test multiple dims create values. For each, make sure that the
* product of dims is the number of input nodes */
nnodes = 2 * 3 * 5 * 7 * 11;
ndims = 2;
dims[0] = dims[1] = 0;
MPI_Dims_create(nnodes, ndims, dims);
if (prodof(ndims, dims) != nnodes) {
errs++;
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
if (increasing(ndims, dims)) {
errs++;
printf
("dims create returned a decomposition with increasing dimensions (see MPI-1 standard section 6.5)\n");
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
/* Test multiple dims create values. For each, make sure that the
* product of dims is the number of input nodes */
nnodes = 2 * 7;
ndims = 2;
dims[0] = dims[1] = 0;
MPI_Dims_create(nnodes, ndims, dims);
if (prodof(ndims, dims) != nnodes) {
errs++;
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
if (increasing(ndims, dims)) {
errs++;
printf
("dims create returned a decomposition with increasing dimensions (see MPI-1 standard section 6.5)\n");
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
nnodes = 2 * 2 * 3 * 3 * 5 * 7 * 11;
ndims = 2;
dims[0] = dims[1] = 0;
MPI_Dims_create(nnodes, ndims, dims);
if (prodof(ndims, dims) != nnodes) {
errs++;
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
if (increasing(ndims, dims)) {
errs++;
printf
("dims create returned a decomposition with increasing dimensions (see MPI-1 standard section 6.5)\n");
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
nnodes = 11;
ndims = 2;
dims[0] = dims[1] = 0;
MPI_Dims_create(nnodes, ndims, dims);
if (prodof(ndims, dims) != nnodes) {
errs++;
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
if (increasing(ndims, dims)) {
errs++;
printf
("dims create returned a decomposition with increasing dimensions (see MPI-1 standard section 6.5)\n");
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
nnodes = 5 * 7 * 11;
ndims = 4;
dims[0] = dims[1] = dims[2] = dims[3] = 0;
MPI_Dims_create(nnodes, ndims, dims);
if (prodof(ndims, dims) != nnodes) {
errs++;
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
if (increasing(ndims, dims)) {
errs++;
printf
("dims create returned a decomposition with increasing dimensions (see MPI-1 standard section 6.5)\n");
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
nnodes = 64;
ndims = 4;
dims[0] = dims[1] = dims[2] = dims[3] = 0;
MPI_Dims_create(nnodes, ndims, dims);
if (prodof(ndims, dims) != nnodes) {
errs++;
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
if (increasing(ndims, dims)) {
errs++;
printf
("dims create returned a decomposition with increasing dimensions (see MPI-1 standard section 6.5)\n");
printf("dims create returned the wrong decomposition for %d in %d dims\n", nnodes, ndims);
}
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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