[Gridsim-commits] SF.net SVN: gridsim: [140] branches/gridsim4.0-branch3/source/gridsim

[<mar...@us...>]

Revision: 140
          http://gridsim.svn.sourceforge.net/gridsim/?rev=140&view=rev
Author:   marcos_dias
Date:     2008-03-04 18:36:56 -0800 (Tue, 04 Mar 2008)

Log Message:
-----------
This update gives the user to quit the simulation when a given event occurs. This is useful for users who want to simulate steady state of a system and want to quit the simulation whenever a user submits its last job.

Modified Paths:
--------------
    branches/gridsim4.0-branch3/source/gridsim/GridSim.java
    branches/gridsim4.0-branch3/source/gridsim/GridSimShutdown.java
    branches/gridsim4.0-branch3/source/gridsim/GridSimTags.java

Modified: branches/gridsim4.0-branch3/source/gridsim/GridSim.java
===================================================================
--- branches/gridsim4.0-branch3/source/gridsim/GridSim.java	2008-03-02 22:53:59 UTC (rev 139)
+++ branches/gridsim4.0-branch3/source/gridsim/GridSim.java	2008-03-05 02:36:56 UTC (rev 140)
@@ -2013,7 +2013,7 @@
     /**
      * Tells all user entities to shut down the simulation.
      * {@link gridsim.GridSimShutdown} entity waits for all users
-     * termination before shuting down other entities.
+     * termination before shutting down other entities.
      * @see gridsim.GridSimShutdown
      * @pre $none
      * @post $none
@@ -2026,6 +2026,23 @@
     }
 
     /**
+     * Tells all user entities to shut down the simulation.
+     * {@link gridsim.GridSimShutdown} will not wait for all users
+     * termination before shutting down other entities. This method is relevant
+     * if you want to avoid the cooling down phase of simulation and use
+     * only the steady state. Therefore, you can shutdown the whole simulation 
+     * when required.
+     * @see gridsim.GridSimShutdown
+     * @pre $none
+     * @post $none
+     */
+    protected void shutdownSimulation() {
+    	if (shutdownID_ != NOT_FOUND) {
+            send(shutdownID_, 0.0, GridSimTags.ABRUPT_END_OF_SIMULATION);
+        }
+    }
+
+    /**
      * Tells the <tt>GridStatistics</tt> entity the end of the simulation
      * @pre $none
      * @post $none

Modified: branches/gridsim4.0-branch3/source/gridsim/GridSimShutdown.java
===================================================================
--- branches/gridsim4.0-branch3/source/gridsim/GridSimShutdown.java	2008-03-02 22:53:59 UTC (rev 139)
+++ branches/gridsim4.0-branch3/source/gridsim/GridSimShutdown.java	2008-03-05 02:36:56 UTC (rev 140)
@@ -110,9 +110,10 @@
      * end of a simulation based on <tt>reportWriterName</tt> defined in
      * the Constructor.
      * <br>
-     * <b>NOTE:</b> This method shuts down grid resources and GIS entities
-     *              <tt>AFTER</tt> all grid users have been shut down.
-     *              Therefore, the number of grid users given in the
+     * <b>NOTE:</b> This method shuts down grid resources and GIS entities 
+     * 				either <tt>AFTER</tt> all grid users have been shut down or
+     * 				an entity requires an abrupt end of the whole simulation.
+     *              In the first case, the number of grid users given in the
      *              Constructor <tt>must</tt> be correct. Otherwise, GridSim
      *              package hangs forever or it does not terminate properly.
      * @pre $none
@@ -127,6 +128,11 @@
         // with number of user entities given during GridSim.init().
         for (int i = 0; i < numUser_; i++) {
             super.sim_get_next(ev);
+            if(ev.get_tag() == GridSimTags.ABRUPT_END_OF_SIMULATION) {
+            	System.out.println(super.get_name() + 
+            			": Abrupting stopping simulation!");
+            	break;
+            }
         }
 
         // Shutdown GIS - now GIS is responsible for informing end of simulation

Modified: branches/gridsim4.0-branch3/source/gridsim/GridSimTags.java
===================================================================
--- branches/gridsim4.0-branch3/source/gridsim/GridSimTags.java	2008-03-02 22:53:59 UTC (rev 139)
+++ branches/gridsim4.0-branch3/source/gridsim/GridSimTags.java	2008-03-05 02:36:56 UTC (rev 140)
@@ -47,7 +47,12 @@
 
     /** Denotes the end of simulation */
     public static final int END_OF_SIMULATION = -1;
-
+    
+    /** Denotes an abrupt end of simulation. That is, one event of this
+     * type is enough for {@link GridSimShutdown} to trigger the end of the
+     * simulation */ 
+    public static final int ABRUPT_END_OF_SIMULATION = -2;
+    
     //////////////////////////////////////////////////////////////////////
 
     /**


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