2 /* Creator: Bronis R. de Supinski (bronis@llnl.gov) Tue Dec 10 2002 */
4 /* type-no-free3.c -- create many types, failing to free some */
5 /* much like type-no-free2.c but use types */
6 /* to communicate and thus exercise umpire more */
10 "$Header: /usr/gapps/asde/cvs-vault/umpire/tests/type-no-free3.c,v 1.2 2003/01/13 18:31:49 bronis Exp $";
13 /* NOTE: Some value of ITERATIONS will imply resource exhaustion */
14 /* either in Umpire or MPI no matter how things are implemented */
15 /* the best we can hope for is to fail gracefully... */
16 /* 10000 breaks umpire due to running out of memory as of 12/12/02... */
17 /* FAILURE IS NOT GRACEFUL AS OF THIS TIME... */
19 #define TYPES_PER_ITERATION 3
20 #define TYPES_LOST_PER_ITERATION 1
21 #define TYPES_TO_COMMIT 1
32 main (int argc, char **argv)
36 int i, j, partner, buf_j;
37 int buf[buf_size * TYPES_TO_COMMIT];
38 char processor_name[128];
40 MPI_Datatype newtype[TYPES_PER_ITERATION];
41 MPI_Request reqs[TYPES_TO_COMMIT];
42 MPI_Status statuses[TYPES_TO_COMMIT];
45 MPI_Init (&argc, &argv);
46 MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
47 MPI_Comm_rank (MPI_COMM_WORLD, &rank);
48 MPI_Get_processor_name (processor_name, &namelen);
49 printf ("(%d) is alive on %s\n", rank, processor_name);
53 printf ("Not enough tasks\n");
59 MPI_Barrier (MPI_COMM_WORLD);
61 if ((nprocs % 2 == 0) ||
62 (rank != nprocs - 1)) {
63 partner = (rank % 2) ? rank - 1 : rank + 1;
65 for (i = 0; i < ITERATIONS; i++) {
66 for (j = 0; j < TYPES_PER_ITERATION; j++) {
67 MPI_Type_contiguous (buf_size, MPI_INT, &newtype[j]);
69 buf_j = j + TYPES_TO_COMMIT - TYPES_PER_ITERATION;
72 MPI_Type_commit (&newtype[j]);
75 MPI_Irecv (&buf[buf_j*buf_size], 1, newtype[j],
76 partner, buf_j, MPI_COMM_WORLD, &reqs[buf_j]);
79 MPI_Isend (&buf[buf_j*buf_size], 1, newtype[j],
80 partner, buf_j, MPI_COMM_WORLD, &reqs[buf_j]);
84 if (j < TYPES_PER_ITERATION - TYPES_LOST_PER_ITERATION) {
85 MPI_Type_free (&newtype[j]);
89 MPI_Waitall (TYPES_TO_COMMIT, reqs, statuses);
93 MPI_Barrier (MPI_COMM_WORLD);
95 printf ("(%d) Finished normally\n", rank);