+++ /dev/null
-/* Copyright (c) 2016-2023. 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. */
-
-package app.tokenring;
-import org.simgrid.msg.Host;
-import org.simgrid.msg.Msg;
-import org.simgrid.msg.MsgException;
-import org.simgrid.msg.Process;
-import org.simgrid.msg.Task;
-
-public class RelayRunner extends Process {
-
- private static final int TASK_COMM_SIZE = 1000000; /* The token is 1MB long*/
-
- public RelayRunner(Host host, String name, String[]args) {
- super(host,name,args);
- }
-
- /* This is the function executed by this kind of processes */
- @Override
- public void main(String[] args) throws MsgException {
- // In this example, the processes are given numerical names: "0", "1", "2", and so on
- int rank = Integer.parseInt(this.getName());
-
- if (rank == 0) {
- /* The root (rank 0) first sends the token then waits to receive it back */
-
- String mailbox = "1";
- Task token = new Task("Token", 0/* no computation associated*/ , TASK_COMM_SIZE );
-
- Msg.info("Host '"+rank+"' send '"+token.getName()+"' to Host '"+mailbox+"'");
- token.send(mailbox);
-
- token = Task.receive(this.getName()); // Get a message from the mailbox having the same name as the current processor
-
- Msg.info("Host '"+rank+"' received '"+token.getName()+"'");
-
- } else {
- /* The others processes receive on their name (coming from their left neighbor -- rank-1)
- * and send to their right neighbor (rank+1) */
- Task token = Task.receive(this.getName());
-
- Msg.info("Host '"+rank+"' received '"+token.getName()+"'");
-
- String mailbox = Integer.toString(rank+1);
- if (rank+1 == Host.getCount()) {
- /* The last process has no right neighbor, so it sends the token back to rank 0 */
- mailbox = "0";
- }
-
- Msg.info("Host '"+rank+"' send '"+token.getName()+"' to Host '"+mailbox+"'");
- token.send(mailbox);
- }
- }
-}
