-/*
- * JNI interface to virtual machine in Simgrid
- *
- * Copyright 2006-2012 The SimGrid Team.
- * All right 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.
- */
+/* JNI interface to virtual machine in Simgrid */
+
+/* Copyright (c) 2006-2014. 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 org.simgrid.msg;
import org.simgrid.msg.Host;
// GetByName is inherited from the super class Host
+ private static VM[] vms=null;
+ private Host currentHost;
+
/* Constructors / destructors */
/**
* Create a `basic' VM (i.e. 1 core, 1GB of RAM, other values are not taken into account).
*/
public VM(Host host, String name) {
- this(host,name,1,1024*1024*1024, -1, null, -1);
+ this(host,name,1,1024, -1, null, -1,0 , 0);
}
/**
- * Create a `basic' VM (i.e. 1 core, 1GB of RAM, other values are not taken into account).
+ * Create a VM
+ * @param host Host node
+ * @param name name of the machine
+ * @param nCore number of core
+ * @param ramSize size of the RAM that should be allocated (in MBytes)
+ * @param netCap (not used for the moment)
+ * @param diskPath (not used for the moment)
+ * @param diskSize (not used for the moment)
+ * @param migNetSpeed (network bandwith allocated for migrations in MB/s, if you don't know put zero ;))
+ * @param dpIntensity (dirty page percentage according to migNetSpeed, [0-100], if you don't know put zero ;))
*/
- public VM(Host host, String name, int nCore, long ramSize,
- long netCap, String diskPath, long diskSize){
+ public VM(Host host, String name, int nCore, int ramSize,
+ int netCap, String diskPath, int diskSize, int migNetSpeed, int dpIntensity){
super();
super.name = name;
- create(host, name, nCore, ramSize, netCap, diskPath, diskSize);
+ this.currentHost = host;
+ create(host, name, nCore, ramSize, netCap, diskPath, diskSize, migNetSpeed, dpIntensity);
+ VM.addVM(this);
}
+ private static void addVM(VM vm){
+ VM[] vmsN=null;
+ int i=0;
+ if(VM.vms == null)
+ vmsN = new VM[1];
+ else
+ vmsN = new VM[vms.length+1];
+
+ for (i=0; i<vmsN.length-1 ; i ++){
+ vmsN[i]=vms[i];
+ }
+ vmsN[i]=vm;
+ vms=vmsN;
+ }
+ public static VM[] all(){
+ return vms;
+ }
+ public static VM getVMByName(String name){
+ for (int i=0 ; i < vms.length ; i++){
+ if (vms[i].getName().equals(name))
+ return vms[i];
+ }
+ return null;
+ }
protected void finalize() {
destroy();
}
/* JNI / Native code */
+
/* get/set property methods are inherited from the Host class. */
/** Returns whether the given VM is currently suspended
/**
* Natively implemented method create the VM.
- * @param nCore, number of core
- * @param ramSize, size of the RAM that should be allocated
+ * @param nCore number of core
+ * @param ramSize size of the RAM that should be allocated (in MB)
* @param netCap (not used for the moment)
* @param diskPath (not used for the moment)
* @param diskSize (not used for the moment)
+ * @param migNetSpeed (network bandwith allocated for migrations in MB/s, if you don't know put zero ;))
+ * @param dpIntensity (dirty page intensity, a percentage of migNetSpeed [0-100], if you don't know put zero ;))
*/
- private native void create(Host host, String name, int nCore, long ramSize,
- long netCap, String diskPath, long diskSize);
-
+ private native void create(Host host, String name, int nCore, int ramSize,
+ int netCap, String diskPath, int diskSize, int migNetSpeed, int dpIntensity);
+
+
+ /**
+ * Bound the VM to a certain % of its vcpu capability (e.g. 75% of vm.getSpeed())
+ * @param load percentage (between [0,100]
+ */
+ public native void setBound(int load);
+
/**
* start the VM
*/
*/
public native void shutdown();
+ /**
+ * Invoke native migration routine
+ */
+ public native void internalmig(Host destination) throws Exception; // TODO add throws DoubleMigrationException (i.e. when you call migrate on a VM that is already migrating);
+
+
- /** Immediately change the host on which all processes are running
- *
- * No migration cost occurs. If you want to simulate this too, you want to use a
- * Task.send() before or after, depending on whether you want to do cold or hot
- * migration.
+ /** Change the host on which all processes are running
+ * (pre-copy is implemented)
*/
- public native void migrate(Host destination);
+ public void migrate(Host destination) throws HostFailureException{
+ try {
+ this.internalmig(destination);
+ } catch (Exception e){
+ Msg.info("an exception occurs during the migration of VM "+this.getName());
+ throw new HostFailureException();
+ }
+ // If the migration correcly returned, then we should change the currentHost value.
+ this.currentHost = destination;
+ }
/** Immediately suspend the execution of all processes within the given VM
*
/**
* Destroy the VM
*/
- protected native void destroy();
+ public native void destroy();
