+++ /dev/null
-#include "mpi.h"
-#include <stdio.h>
-/* stdlib.h Needed for malloc declaration */
-#include <stdlib.h>
-#include "test.h"
-
-int main( int argc, char **argv )
-{
- int i, n, n_goal = 2048, n_all, rc, n_ranks, *ranks, rank, size, len;
- MPI_Group *group_array, world_group;
- char msg[MPI_MAX_ERROR_STRING];
-
- MPI_Init( &argc, &argv );
- MPI_Errhandler_set( MPI_COMM_WORLD, MPI_ERRORS_RETURN );
- MPI_Comm_size( MPI_COMM_WORLD, &size );
- MPI_Comm_rank( MPI_COMM_WORLD, &rank );
- n = n_goal;
-
- group_array = (MPI_Group *)malloc( n * sizeof(MPI_Group) );
-
- MPI_Comm_group( MPI_COMM_WORLD, &world_group );
-
- n_ranks = size;
- ranks = (int *)malloc( size * sizeof(int) );
- for (i=0; i<size; i++) ranks[i] = i;
-
- for (i=0; i<n; i++) {
- rc = MPI_Group_incl( world_group, n_ranks, ranks, group_array + i );
- if (rc) {
- fprintf( stderr, "Error when creating group number %d\n", i );
- MPI_Error_string( rc, msg, &len );
- fprintf( stderr, "%s\n", msg );
- n = i + 1;
- break;
- }
-
- }
-
- for (i=0; i<n; i++) {
- rc = MPI_Group_free( group_array + i );
- if (rc) {
- fprintf( stderr, "Error when freeing group number %d\n", i );
- MPI_Error_string( rc, msg, &len );
- fprintf( stderr, "%s\n", msg );
- break;
- }
- }
-
- MPI_Group_free( &world_group );
-
- MPI_Reduce( &n, &n_all, 1, MPI_INT, MPI_MIN, 0, MPI_COMM_WORLD );
- if (rank == 0) {
- /* printf( "Completed test of %d type creations\n", n_all ); */
- if (n_all != n_goal) {
- printf (
-"This MPI implementation limits the number of groups that can be created\n\
-This is allowed by the standard and is not a bug, but is a limit on the\n\
-implementation\n" );
- }
- else {
- printf( " No Errors\n" );
- }
- }
-
- MPI_Finalize( );
- return 0;
-}