X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7a8cd62135619ad52e05ae1c929ef07e166e4260..b558f9b18c938af6a35ebea66ac2323a60178202:/examples/java/cloud/Master.java

diff --git a/examples/java/cloud/Master.java b/examples/java/cloud/Master.java
new file mode 100644
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+++ b/examples/java/cloud/Master.java
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+/*
+ * Copyright 2012. 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 cloud;
+
+import java.util.ArrayList;
+
+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;
+import org.simgrid.msg.VM;
+
+public class Master extends Process {
+	private Host[] hosts;
+	
+	public Master(Host host, String name, Host[] hosts) {
+		super(host,name,null);
+		this.hosts = hosts;
+	}
+	public void main(String[] args) throws MsgException {
+		int slavesCount = 10;
+		
+		ArrayList<VM> vms = new ArrayList<VM>();
+		
+		for (int i = 0; i < slavesCount; i++) {
+			Slave slave = new Slave(hosts[i],i);
+			slave.start();
+			VM vm = new VM(hosts[i],hosts[i]+"_"+i,1);
+			vm.bind(slave);
+			vms.add(vm);
+		}
+		Msg.info("Launched " + vms.size() + " VMs");
+		
+		Msg.info("Send a first batch of work to everyone");
+		workBatch(slavesCount);
+		
+		Msg.info("Now suspend all VMs, just for fun");
+		for (int i = 0; i < vms.size(); i++) {
+			vms.get(i).suspend();
+		}
+		
+		Msg.info("Wait a while");
+		waitFor(2);
+		
+		Msg.info("Enough. Let's resume everybody.");
+		for (int i = 0; i < vms.size(); i++) {
+			vms.get(i).resume();
+		}
+		
+		Msg.info("Sleep long enough for everyone to be done with previous batch of work");
+		waitFor(1000 - Msg.getClock());
+		
+		Msg.info("Add one more process per VM.");
+		for (int i = 0; i < vms.size(); i++) {
+			VM vm = vms.get(i);
+			Slave slave = new Slave(hosts[i],i + vms.size());
+			slave.start();
+			vm.bind(slave);
+		}
+		
+		Msg.info("Migrate everyone to the second host.");
+		for (int i = 0; i < vms.size(); i++) {
+			vms.get(i).migrate(hosts[1]);
+		}
+		
+		Msg.info("Suspend everyone, move them to the third host, and resume them.");
+		for (int i = 0; i < vms.size(); i++) {
+			VM vm = vms.get(i);
+			vm.suspend();
+			vm.migrate(hosts[2]);
+			vm.resume();
+		}
+		
+		workBatch(slavesCount * 2);
+		
+		Msg.info("Let's shut down the simulation and kill everyone.");
+		
+		for (int i = 0; i < vms.size(); i++) {
+			vms.get(i).shutdown();
+		}				
+		Msg.info("Master done.");
+	}
+	
+	public void workBatch(int slavesCount) throws MsgException {
+		for (int i = 0; i < slavesCount; i++) {
+			Task task = new Task("Task_" + i, Cloud.task_comp_size, Cloud.task_comm_size);
+			Msg.info("Sending to " + i);
+			task.send("slave_" + i);
+		}
+	}
+}