1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
4 * (C) 2003 by Argonne National Laboratory.
5 * See COPYRIGHT in top-level directory.
12 static char MTEST_Descrip[] = "Create a communicator with a graph that contains no processes";
15 int main( int argc, char *argv[] )
18 int *index = 0, *edges = 0;
21 MTest_Init( &argc, &argv );
23 /* MPI 2.1, page 246, lines 29-30 make it clear that this is a valid
24 (not erroneous) call that must return MPI_COMM_NULL */
25 MPI_Graph_create( MPI_COMM_WORLD, 0, index, edges, 0, &comm );
26 if (comm != MPI_COMM_NULL) {
28 fprintf( stderr, "Expected MPI_COMM_NULL from empty graph create\n" );
31 MTest_Finalize( errs );