From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Sat, 27 Feb 2010 23:05:41 +0000 (+0000)
Subject: Rewrite the basic master/slave example to use the send/receive interface instead... 
X-Git-Tag: SVN~608
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/b50ea0bd9bd6661d86b941b9b1742d44606ee9eb

Rewrite the basic master/slave example to use the send/receive interface instead of put/get

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@7130 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/examples/java/basic/BasicTest.java b/examples/java/basic/BasicTest.java
index 8f51245fa1..5d34c69d4a 100644
--- a/examples/java/basic/BasicTest.java
+++ b/examples/java/basic/BasicTest.java
@@ -29,9 +29,6 @@ public class BasicTest {
 	  System.exit(1);
        }
 		
-        /* specify a paje output file. */
-        Msg.pajeOutput("basic.trace");
-		
 	/* construct the platform and deploy the application */
 	Msg.createEnvironment(args[0]);
 	Msg.deployApplication(args[1]);
diff --git a/examples/java/basic/Forwarder.java b/examples/java/basic/Forwarder.java
index 4e856bca9d..6d383c9fa9 100644
--- a/examples/java/basic/Forwarder.java
+++ b/examples/java/basic/Forwarder.java
@@ -1,7 +1,7 @@
 /*
  * $Id$
  *
- * Copyright 2006,2007 Martin Quinson, Malek Cherier         
+ * Copyright 2006,2007,2010 The SimGrid Team
  * All rights reserved. 
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -13,39 +13,35 @@ import simgrid.msg.*;
 public class Forwarder extends simgrid.msg.Process {
     
    public void main(String[] args) throws JniException, NativeException {
-      Msg.info("hello!");
-      
-      int slavesCount = args.length;
-      Host[] slaves = new Host[slavesCount];
-      
-      for (int i = 0; i < args.length; i++) {
-	 try {	      
-	    slaves[i] = Host.getByName(args[i]);
-	 } catch (HostNotFoundException e) {
-	    Msg.info("Buggy deployment file");
-	    e.printStackTrace();
-	    System.exit(1);
-	 }
+      if (args.length < 3) {	 
+	 Msg.info("Forwarder needs 3 arguments (input mailbox, first output mailbox, last one)");
+	 Msg.info("Got "+args.length+" instead");
+	 System.exit(1);
       }
+      int input = Integer.valueOf(args[0]).intValue();		
+      int firstOutput = Integer.valueOf(args[1]).intValue();		
+      int lastOutput = Integer.valueOf(args[2]).intValue();		
       
       int taskCount = 0;
+      int slavesCount = lastOutput - firstOutput + 1;
+      Msg.info("Receiving on 'slave_"+input+"'");
       while(true) {
-	 Task t = Task.get(0);	
+	 Task t = Task.receive("slave_"+input);	
 	 
 	 if (t instanceof FinalizeTask) {
-	    Msg.info("All tasks have been dispatched. Let's tell everybody the computation is over.");
+	    Msg.info("Got a finalize task. Let's forward that we're done.");
 	    
-	    for (int cpt = 0; cpt<slavesCount; cpt++) {
-	       slaves[cpt].put(0,new FinalizeTask());
+	    for (int cpt = firstOutput; cpt<=lastOutput; cpt++) {
+	       Task tf = new FinalizeTask();
+	       tf.send("slave_"+cpt);
 	    }
 	    break;
 	 }
 	 BasicTask task = (BasicTask)t;
+	 int dest = firstOutput + (taskCount % slavesCount);
 	 
-	 Msg.info("Received \"" + task.getName() + "\" ");
-	 	    
-	 Msg.info("Sending \"" + task.getName() + "\" to \"" + slaves[taskCount % slavesCount].getName() + "\"");
-	 slaves[taskCount % slavesCount].put(0, task);
+	 Msg.info("Sending \"" + task.getName() + "\" to \"slave_" + dest + "\"");
+	 task.send("slave_"+dest);
 	    
 	 taskCount++;
       }
diff --git a/examples/java/basic/Master.java b/examples/java/basic/Master.java
index e8541060f8..594c392b9d 100644
--- a/examples/java/basic/Master.java
+++ b/examples/java/basic/Master.java
@@ -1,8 +1,7 @@
 /*
- * $Id$
+ * 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. 
@@ -12,66 +11,30 @@ import simgrid.msg.*;
 
 public class Master extends simgrid.msg.Process {
    public void main(String[] args) throws JniException, NativeException {
-      int channel = 0;
-      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");
+      if (args.length < 4) {
+	 Msg.info("Master needs 4 arguments");
 	 System.exit(1);
       }
       
-      int numberOfTasks = Integer.valueOf(args[0]).intValue();		
+      int tasksCount = Integer.valueOf(args[0]).intValue();		
       double taskComputeSize = Double.valueOf(args[1]).doubleValue();		
       double taskCommunicateSize = Double.valueOf(args[2]).doubleValue();
-      BasicTask[] todo = new BasicTask[numberOfTasks];
       
-      for (int i = 0; i < numberOfTasks; i++) {
-	 todo[i] = new BasicTask("Task_" + i, taskComputeSize, taskCommunicateSize); 
-      }
+      int slavesCount = Integer.valueOf(args[3]).intValue();
       
-      slaveCount = args.length - 3;
-      slaves = new Host[slaveCount];
+      Msg.info("Hello! Got "+  slavesCount + " slaves and "+tasksCount+" tasks to process");
       
-      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);
-	 }
+      for (int i = 0; i < tasksCount; i++) {
+	 BasicTask task = new BasicTask("Task_" + i, taskComputeSize, taskCommunicateSize); 
+	 Msg.info("Sending \"" + task.getName()+ "\" to \"slave_" + i % slavesCount + "\"");
+	 task.send("slave_"+(i%slavesCount));
       }
       
-      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.");
-      
-      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 ! ");
-	 
-	 slaves[i % slaveCount].put(channel, todo[i]);
-      }
-      
-      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++) {
-	 slaves[i].put(channel, new FinalizeTask());
+      for (int i = 0; i < slavesCount; i++) {
+	 FinalizeTask task = new FinalizeTask();
+	 task.send("slave_"+(i%slavesCount));
       }
       
       Msg.info("Goodbye now!");
diff --git a/examples/java/basic/Slave.java b/examples/java/basic/Slave.java
index 33eea2d074..05b2380852 100644
--- a/examples/java/basic/Slave.java
+++ b/examples/java/basic/Slave.java
@@ -12,18 +12,22 @@ import simgrid.msg.*;
 
 public class Slave extends simgrid.msg.Process {
    public void main(String[] args) throws JniException, NativeException {
-      Msg.info("Hello !");
+      if (args.length < 1) {
+	 Msg.info("Slave needs 1 argument (its number)");
+	 System.exit(1);
+      }
+
+      int num = Integer.valueOf(args[0]).intValue();
+      Msg.info("Receiving on 'slave_"+num+"'");
       
       while(true) { 
-	 Task t = Task.get(0);	
+	 Task t = Task.receive("slave_"+num);	
 	 
 	 if (t instanceof FinalizeTask) {
 	    break;
 	 }
 	 BasicTask task = (BasicTask)t;
-	 Msg.info("Received \"" + task.getName() + "\" ");
-	 	 
-	 Msg.info("Processing \"" + task.getName() +  "\" ");	 
+	 Msg.info("Received \"" + task.getName() +  "\". Processing it.");	 
 	 task.execute();
 	 Msg.info("\"" + task.getName() + "\" done ");
        }
diff --git a/examples/java/basic/basic_deployment.xml b/examples/java/basic/basic_deployment.xml
index 4c326283c3..d750df1070 100644
--- a/examples/java/basic/basic_deployment.xml
+++ b/examples/java/basic/basic_deployment.xml
@@ -2,32 +2,48 @@
 <!DOCTYPE platform SYSTEM "simgrid.dtd">
 <platform version="2">
   <process host="Jacquelin" function="Master">
-     <argument value="5"/>
-     <argument value="50000"/>
-     <argument value="10"/>
-     <argument value="iRMX"/>
-     <argument value="Casavant"/>
-     <argument value="Bousquet"/>
-     <argument value="Soucy"/>
-     <argument value="Jackson"/>
+     <argument value="5"/>     <!-- Amount of tasks to dispatch -->
+     <argument value="50000"/> <!-- Computation size of each task -->
+     <argument value="10"/>    <!-- Communication size of each one -->
+     <argument value="7"/>     <!-- Amount of slaves waiting for orders -->
   </process>
+  
   <process host="Jackson" function="Forwarder">
-     <argument value="Kuenning"/>
-     <argument value="Browne"/> 
-     <argument value="Stephen"/>
- </process>
+     <argument value="0"/>  <!-- Input mailbox -->
+     <argument value="7"/>  <!-- First output mailbox -->
+     <argument value="8"/>  <!-- Last output mailbox -->
+  </process>
   <process host="Casavant" function="Forwarder">
-     <argument value="Robert"/>
-     <argument value="Sirois"/> 
-     <argument value="Monique"/>
- </process>
-  <process host="iRMX" function="Slave"/>
-  <process host="Bousquet" function="Slave"/>
-  <process host="Soucy" function="Slave"/>
-  <process host="Kuenning" function="Slave"/>
-  <process host="Browne" function="Slave"/>
-  <process host="Stephen" function="Slave"/>
-  <process host="Robert" function="Slave"/>
-  <process host="Sirois" function="Slave"/>
-  <process host="Monique" function="Slave"/>
+     <argument value="1"/>  <!-- Input mailbox -->
+     <argument value="9"/>  <!-- First output mailbox -->
+     <argument value="10"/> <!-- Last output mailbox -->
+  </process>
+  
+  <process host="iRMX" function="Slave">
+     <argument value="2"/>  <!-- Input mailbox -->
+  </process>
+  <process host="Bousquet" function="Slave">
+     <argument value="3"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Soucy" function="Slave">
+     <argument value="4"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Kuenning" function="Slave">
+     <argument value="5"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Browne" function="Slave">
+     <argument value="6"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Stephen" function="Slave">
+     <argument value="7"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Robert" function="Slave">
+     <argument value="8"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Sirois" function="Slave">
+     <argument value="9"/>  <!-- Input mailbox -->
+  </process>  
+  <process host="Monique" function="Slave">
+     <argument value="10"/>  <!-- Input mailbox -->
+  </process>  
 </platform>