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];
20 MPI_Status aStatus[2];
25 MPI_Init (&argc, &argv);
26 MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
27 MPI_Comm_rank (MPI_COMM_WORLD, &rank);
28 MPI_Get_processor_name (processor_name, &namelen);
29 printf ("(%d) is alive on %s\n", rank, processor_name);
32 MPI_Barrier (MPI_COMM_WORLD);
35 printf ("not enough tasks\n");
39 memset (buf0, 0, buf_size);
41 MPI_Send_init (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &aReq[0]);
42 MPI_Recv_init (buf1, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &aReq[1]);
47 MPI_Waitall (2, aReq, aStatus);
49 memset (buf0, 1, buf_size);
51 MPI_Startall (2, aReq);
53 MPI_Waitall (2, aReq, aStatus);
56 memset (buf1, 1, buf_size);
58 MPI_Recv_init (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &aReq[0]);
59 MPI_Send_init (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &aReq[1]);
64 MPI_Waitall (2, aReq, aStatus);
66 memset (buf1, 0, buf_size);
68 MPI_Startall (2, aReq);
70 MPI_Waitall (2, aReq, aStatus);
74 MPI_Barrier (MPI_COMM_WORLD);
76 MPI_Request_free (&aReq[0]);
77 MPI_Request_free (&aReq[1]);
80 printf ("(%d) Finished normally\n", rank);