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);
35 printf ("not enough tasks\n");
39 memset (buf0, 0, buf_size);
41 MPI_Irecv (buf1, buf_size, MPI_INT,
42 MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &req);
43 printf("Proc 0: Request number - %d\n",req);
45 MPI_Send (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD);
47 MPI_Recv (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &status);
49 MPI_Send (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD);
51 MPI_Wait (&req, &status);
52 printf("Proc 0: Request number after wait test- %d\n",req);
56 memset (buf1, 1, buf_size);
58 MPI_Irecv (buf1, buf_size, MPI_INT,
59 MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &req);
60 printf("Proc 1: Request number - %d\n",req);
62 MPI_Send (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD);
64 MPI_Recv (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &status);
66 MPI_Send (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD);
68 MPI_Wait (&req, &status);
69 printf("Proc 1: Request number after wait test- %d\n",req);
72 MPI_Barrier (MPI_COMM_WORLD);
75 printf ("(%d) Finished normally\n", rank);