model-checker : smpi examples for the communication pattern detection

[simgrid.git] / examples / smpi / mc / non_deterministic.c

diff --git a/examples/smpi/mc/non_deterministic.c b/examples/smpi/mc/non_deterministic.c
new file mode 100644 (file)
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--- /dev/null
+++ b/examples/smpi/mc/non_deterministic.c
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+/* ../../../smpi_script/bin/smpirun -hostfile hostfile_send_deterministic -platform ../../platforms/cluster.xml -np 3 --cfg=model-check:1 --cfg=smpi/send_is_detached_thres:0 gdb\ --args\ ./send_deterministic */
+
+/* Copyright (c) 2009 - 2014. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <stdio.h>
+#include <mpi.h>
+#include <simgrid/modelchecker.h>
+
+
+int main(int argc, char **argv)
+{
+  int recv_buff, err, size, rank, i;
+  MPI_Status status;
+
+  /* Initialize MPI */
+  err = MPI_Init(&argc, &argv);
+  if (err != MPI_SUCCESS) {
+    printf("MPI initialization failed!\n");
+    exit(1);
+  }
+
+  err = MPI_Comm_size(MPI_COMM_WORLD, &size);   /* Get nr of tasks */
+  err = MPI_Comm_rank(MPI_COMM_WORLD, &rank);   /* Get id of this process */
+  if (size < 2) {
+    printf("run this program with at least 2 processes \n");
+    MPI_Finalize();
+    exit(0);
+  }
+
+  if (rank == 0) {
+    printf("MPI_ISend / MPI_IRecv Test \n");
+
+    for(i=0; i < size - 1; i++){
+      MPI_Recv(&recv_buff, 1, MPI_INT, MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
+      printf("Message received from %d\n", recv_buff);
+      MPI_Send(&recv_buff, 1, MPI_INT, status.MPI_SOURCE, 42, MPI_COMM_WORLD);
+      printf("Sent %d to rank %d\n", status.MPI_SOURCE);
+    }
+
+  }else{
+    MPI_Send(&rank, 1, MPI_INT, 0, 42, MPI_COMM_WORLD);
+    printf("Sent %d to rank 0\n", rank);
+    MPI_Recv(&recv_buff, 1, MPI_INT, 0, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
+    printf("Message received from %d\n", recv_buff);
+  }
+
+  MPI_Finalize();
+
+  return 0;
+}