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];
22 MPI_Init (&argc, &argv);
23 MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
24 MPI_Comm_rank (MPI_COMM_WORLD, &rank);
25 MPI_Get_processor_name (processor_name, &namelen);
26 printf ("(%d) is alive on %s\n", rank, processor_name);
31 printf ("not enough tasks\n");
37 memset (buf0, 0, buf_size*sizeof(int));
39 MPI_Sendrecv (buf0, buf_size, MPI_INT, 1, 0,
40 buf1, buf_size, MPI_INT, 1, 0,
41 MPI_COMM_WORLD, &status);
43 MPI_Sendrecv (buf1, buf_size, MPI_INT, 1, 0,
44 buf0, buf_size, MPI_INT, 1, 0,
45 MPI_COMM_WORLD, &status);
47 MPI_Sendrecv (buf0, buf_size, MPI_INT, 1, 0,
48 buf1, buf_size, MPI_INT, 1, 0,
49 MPI_COMM_WORLD, &status);
55 memset (buf1, 1, buf_size*sizeof(int));
57 MPI_Sendrecv (buf1, buf_size, MPI_INT, 0, 0,
58 buf0, buf_size, MPI_INT, 0, 0,
59 MPI_COMM_WORLD, &status);
61 MPI_Sendrecv (buf0, buf_size, MPI_INT, 0, 0,
62 buf1, buf_size, MPI_INT, 0, 0,
63 MPI_COMM_WORLD, &status);
65 MPI_Sendrecv (buf1, buf_size, MPI_INT, 0, 0,
66 buf0, buf_size, MPI_INT, 0, 0,
67 MPI_COMM_WORLD, &status);
73 printf ("(%d) Finished normally\n", rank);