--- /dev/null
+/* -*- Mode: C; -*- */
+/* Creator: Bronis R. de Supinski (bronis@llnl.gov) Thu Nov 30 2000 */
+/* persistent3.c -- do some MPI persistent calls */
+/* including freeing an active request - the effect of which */
+/* is implementation dependent - usually a detected error */
+/* in this test, the error is made in only task rank 0... */
+
+#include <stdio.h>
+#include "mpi.h"
+
+#define buf_size 128
+
+int
+main (int argc, char **argv)
+{
+ int nprocs = -1;
+ int rank = -1;
+ char processor_name[128];
+ int namelen = 128;
+ int buf0[buf_size];
+ int buf1[buf_size];
+ MPI_Request aReq[2], free_req;
+ MPI_Status aStatus[2];
+
+ MPI_Status status;
+
+ /* init */
+ MPI_Init (&argc, &argv);
+ MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
+ MPI_Comm_rank (MPI_COMM_WORLD, &rank);
+ MPI_Get_processor_name (processor_name, &namelen);
+ printf ("(%d) is alive on %s\n", rank, processor_name);
+ fflush (stdout);
+
+ MPI_Barrier (MPI_COMM_WORLD);
+
+ if (nprocs < 2) {
+ printf ("not enough tasks\n");
+ }
+ else {
+ if (rank == 0) {
+ memset (buf0, 0, buf_size);
+
+ MPI_Send_init (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &aReq[0]);
+ MPI_Recv_init (buf1, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &aReq[1]);
+
+ MPI_Start (&aReq[0]);
+ MPI_Start (&aReq[1]);
+
+ MPI_Waitall (2, aReq, aStatus);
+
+ memset (buf0, 1, buf_size);
+
+ MPI_Startall (2, aReq);
+
+ /* free an active request... */
+ free_req = aReq[1];
+ MPI_Request_free (&free_req);
+
+ MPI_Waitall (2, aReq, aStatus);
+ }
+ else if (rank == 1) {
+ memset (buf1, 1, buf_size);
+
+ MPI_Recv_init (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &aReq[0]);
+ MPI_Send_init (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &aReq[1]);
+
+ MPI_Start (&aReq[0]);
+ MPI_Start (&aReq[1]);
+
+ MPI_Waitall (2, aReq, aStatus);
+
+ memset (buf1, 0, buf_size);
+
+ MPI_Startall (2, aReq);
+
+ MPI_Waitall (2, aReq, aStatus);
+ }
+ }
+
+ MPI_Barrier (MPI_COMM_WORLD);
+
+ MPI_Request_free (&aReq[0]);
+
+ MPI_Finalize ();
+ printf ("(%d) Finished normally\n", rank);
+}
+
+/* EOF */