/*
- * $Id$
+ * Master of a basic master/slave example in Java
*
- * Copyright 2006,2007 Martin Quinson, Malek Cherier
- * All rights reserved.
+ * Copyright 2006,2007,2010 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.
import simgrid.msg.*;
public class Master extends simgrid.msg.Process {
- public void main(String[] args) throws JniException, NativeException {
- Msg.info("hello!");
-
- int slaveCount = 0;
- Host[] slaves = null;
-
- Msg.info("argc="+args.length);
- for (int i = 0; i<args.length; i++)
- Msg.info("argv:"+args[i]);
-
- if (args.length < 3) {
- Msg.info("Master needs 3 arguments");
- System.exit(1);
- }
-
- int numberOfTasks = Integer.valueOf(args[0]).intValue();
- double taskComputeSize = Double.valueOf(args[1]).doubleValue();
- double taskCommunicateSize = Double.valueOf(args[2]).doubleValue();
- BasicTask[] todo = new BasicTask[numberOfTasks];
-
- String taskName = null;
-
- for (int i = 0; i < numberOfTasks; i++) {
- todo[i] = new BasicTask("Task_" + i, taskComputeSize, taskCommunicateSize);
- }
-
- slaveCount = args.length - 3;
- slaves = new Host[slaveCount];
-
- for(int i = 3; i < args.length ; i++) {
- try {
- slaves[i-3] = Host.getByName(args[i]);
- }
- catch(HostNotFoundException e) {
- Msg.info("Unknown host " + args[i] + ". Stopping Now!");
- e.printStackTrace();
- System.exit(1);
- }
- }
-
- Msg.info("Got "+ slaveCount + " slave(s) :");
-
- for (int i = 0; i < slaveCount; i++)
- Msg.info("\t"+slaves[i].getName());
-
- Msg.info("Got "+ numberOfTasks + " task to process.");
-
- Channel channel = new Channel(0);
-
- for (int i = 0; i < numberOfTasks; i++) {
- Msg.info("Sending \"" + todo[i].getName()+ "\" to \"" + slaves[i % slaveCount].getName() + "\"");
-
- if((Host.currentHost()).equals(slaves[i % slaveCount]))
- Msg.info("Hey ! It's me ! ");
-
- channel.put(todo[i], slaves[i % slaveCount]);
- }
-
- Msg.info("Send completed");
-
- Msg.info("All tasks have been dispatched. Let's tell everybody the computation is over.");
-
- for (int i = 0; i < slaveCount; i++) {
- channel.put(new FinalizeTask(),slaves[i]);
- }
-
- Msg.info("Goodbye now!");
- }
+ public void main(String[] args) throws MsgException {
+ if (args.length < 4) {
+ Msg.info("Master needs 4 arguments");
+ System.exit(1);
+ }
+
+ int tasksCount = Integer.valueOf(args[0]).intValue();
+ double taskComputeSize = Double.valueOf(args[1]).doubleValue();
+ double taskCommunicateSize = Double.valueOf(args[2]).doubleValue();
+
+ int slavesCount = Integer.valueOf(args[3]).intValue();
+
+ Msg.info("Hello! Got "+ slavesCount + " slaves and "+tasksCount+" tasks to process");
+
+ for (int i = 0; i < tasksCount; i++) {
+ Task task = new Task("Task_" + i, taskComputeSize, taskCommunicateSize);
+ //Msg.info("Sending \"" + task.getName()+ "\" to \"slave_" + i % slavesCount + "\"");
+ task.send("slave_"+(i%slavesCount));
+ }
+
+ Msg.info("All tasks have been dispatched. Let's tell everybody the computation is over.");
+
+ for (int i = 0; i < slavesCount; i++) {
+ FinalizeTask task = new FinalizeTask();
+ task.send("slave_"+(i%slavesCount));
+ }
+
+ Msg.info("Goodbye now!");
+ }
}