1 /* Copyright (c) 2009-2019. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
10 int main(int argc, char **argv)
15 MPI_Init(&argc, &argv);
16 MPI_Comm_size(MPI_COMM_WORLD, &size);
17 MPI_Comm_rank(MPI_COMM_WORLD, &rank);
19 int status = MPI_Barrier(MPI_COMM_NULL);
20 if(status!=MPI_ERR_COMM)
21 printf("MPI_Barrier did not return MPI_ERR_COMM for MPI_COMM_NULL comm\n");
23 MPI_Barrier(MPI_COMM_WORLD);
26 printf("... Barrier ....\n");