+/* ../../../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;
+}
