1 /* Copyright (c) 2006-2014. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
9 import org.simgrid.msg.Host;
10 import org.simgrid.msg.Msg;
11 import org.simgrid.msg.MsgException;
12 import org.simgrid.msg.Process;
13 import org.simgrid.msg.Task;
15 public class Master extends Process {
16 public Master(Host host, String name, String[]args) {
17 super(host,name,args);
20 public void main(String[] args) throws MsgException {
21 if (args.length < 4) {
22 Msg.info("Master needs 4 arguments");
26 int tasksCount = Integer.valueOf(args[0]).intValue();
27 double taskComputeSize = Double.valueOf(args[1]).doubleValue();
28 double taskCommunicateSize = Double.valueOf(args[2]).doubleValue();
30 int slavesCount = Integer.valueOf(args[3]).intValue();
32 Msg.info("Hello! Got "+ slavesCount + " slaves and "+tasksCount+" tasks to process");
34 for (int i = 0; i < tasksCount; i++) {
35 Task task = new Task("Task_" + i, taskComputeSize, taskCommunicateSize);
37 Msg.info("Sending \"" + task.getName()+ "\" to \"slave_" + i % slavesCount + "\"");
38 task.send("slave_"+(i%slavesCount));
41 Msg.info("All tasks have been dispatched. Let's tell everybody the computation is over.");
43 for (int i = 0; i < slavesCount; i++) {
44 FinalizeTask task = new FinalizeTask();
45 task.send("slave_"+(i%slavesCount));
47 Msg.info("Goodbye now!");