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);
34 printf ("not enough tasks\n");
38 memset (buf0, 0, buf_size*sizeof(int));
40 MPI_Irecv (buf1, buf_size, MPI_INT,
41 MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &req);
43 MPI_Wait (&req, &status);
45 MPI_Send (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD);
49 memset (buf1, 1, buf_size*sizeof(int));
51 MPI_Irecv (buf0, buf_size, MPI_INT,
52 MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &req);
54 MPI_Wait (&req, &status);
56 MPI_Send (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD);
59 MPI_Barrier (MPI_COMM_WORLD);
62 printf ("(%d) Finished normally\n", rank);