2 /* Creator: Bronis R. de Supinski (bronis@llnl.gov) Fri Mar 17 2000 */
3 /* no-error.c -- do some MPI calls without any errors */
11 main (int argc, char **argv)
15 char processor_name[128];
23 MPI_Init (&argc, &argv);
24 MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
25 MPI_Comm_rank (MPI_COMM_WORLD, &rank);
26 MPI_Get_processor_name (processor_name, &namelen);
27 printf ("(%d) is alive on %s\n", rank, processor_name);
30 MPI_Barrier (MPI_COMM_WORLD);
33 printf ("not enough tasks\n");
36 MPI_Comm_dup (MPI_COMM_WORLD, &comm);
39 memset (buf0, 0, buf_size*sizeof(int));
41 MPI_Recv (buf1, buf_size, MPI_INT, 1, 0, comm, &status);
43 MPI_Send (buf0, buf_size, MPI_INT, 1, 0, comm);
46 memset (buf1, 1, buf_size*sizeof(int));
48 MPI_Recv (buf0, buf_size, MPI_INT, 0, 0, comm, &status);
50 MPI_Send (buf1, buf_size, MPI_INT, 0, 0, comm);
53 MPI_Comm_free (&comm);
56 MPI_Barrier (MPI_COMM_WORLD);
59 printf ("(%d) Finished normally\n", rank);