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];
24 MPI_Init (&argc, &argv);
25 MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
26 MPI_Comm_rank (MPI_COMM_WORLD, &rank);
27 MPI_Get_processor_name (processor_name, &namelen);
28 printf ("(%d) is alive on %s\n", rank, processor_name);
31 MPI_Barrier (MPI_COMM_WORLD);
33 /* this code is very similar to no-error-waitall-any_src.c */
34 /* but deadlocks since task 2's send and recv are inverted... */
37 printf ("not enough tasks\n");
41 MPI_Irecv (buf0, buf_size, MPI_INT,
42 MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &reqs[0]);
44 MPI_Irecv (buf1, buf_size, MPI_INT,
45 MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &reqs[1]);
47 MPI_Waitany (2, reqs, &done, &status);
49 MPI_Send (buf1, buf_size, MPI_INT, 1, 1, MPI_COMM_WORLD);
53 memset (buf0, 0, buf_size);
55 MPI_Recv (buf1, buf_size, MPI_INT, 0, 1, MPI_COMM_WORLD, &status);
57 MPI_Send (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD);
60 MPI_Barrier (MPI_COMM_WORLD);
63 printf ("(%d) Finished normally\n", rank);