2 /* Creator: Bronis R. de Supinski (bronis@llnl.gov) Thu Nov 30 2000 */
3 /* no-error3.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);
29 MPI_Barrier (MPI_COMM_WORLD);
32 printf ("not enough tasks\n");
36 memset (buf0, 0, buf_size*sizeof(int));
38 MPI_Sendrecv (buf0, buf_size, MPI_INT, 1, 0,
39 buf1, buf_size, MPI_INT, 1, 0,
40 MPI_COMM_WORLD, &status);
43 memset (buf1, 1, buf_size*sizeof(int));
45 MPI_Recv (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &status);
47 MPI_Send (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD);
51 MPI_Barrier (MPI_COMM_WORLD);
54 printf ("(%d) Finished normally\n", rank);