A few fixes here and there

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/CloudletScheduler.java

@@ -223,6 +223,20 @@ public abstract class CloudletScheduler {
 	 */
 	public abstract double getTotalCurrentAllocatedMipsForCloudlet(ResCloudlet rcl, double time);
 
+	/**
+	 * Gets the current requested ram.
+	 *
+	 * @return the current requested ram
+	 */
+	public abstract double getCurrentRequestedUtilizationOfRam();
+
+	/**
+	 * Gets the current requested bw.
+	 *
+	 * @return the current requested bw
+	 */
+	public abstract double getCurrentRequestedUtilizationOfBw();
+
 	/**
 	 * Gets the previous time.
 	 *

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/CloudletSchedulerSpaceShared.java

@@ -659,4 +659,16 @@ public class CloudletSchedulerSpaceShared extends CloudletScheduler {
 		return 0.0;
 	}
 
+	@Override
+	public double getCurrentRequestedUtilizationOfRam() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public double getCurrentRequestedUtilizationOfBw() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
 }

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/CloudletSchedulerTimeShared.java

@@ -543,4 +543,22 @@ public class CloudletSchedulerTimeShared extends CloudletScheduler {
 		return 0.0;
 	}
 
+	@Override
+	public double getCurrentRequestedUtilizationOfRam() {
+		double ram = 0;
+		for (ResCloudlet cloudlet : cloudletExecList) {
+			ram += cloudlet.getCloudlet().getUtilizationOfRam(CloudSim.clock());
+		}
+		return ram;
+	}
+
+	@Override
+	public double getCurrentRequestedUtilizationOfBw() {
+		double bw = 0;
+		for (ResCloudlet cloudlet : cloudletExecList) {
+			bw += cloudlet.getCloudlet().getUtilizationOfBw(CloudSim.clock());
+		}
+		return bw;
+	}
+
 }

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/HostDynamicWorkload.java

@@ -77,10 +77,10 @@ public class HostDynamicWorkload extends Host {
 		for (Vm vm : getVmList()) {
 			double totalRequestedMips = vm.getCurrentRequestedTotalMips();
 
-			if (totalRequestedMips == 0) {
-				Log.printLine("VM #" + vm.getId() + " has completed its execution and destroyed");
-				continue;
-			}
+//			if (totalRequestedMips == 0) {
+//				Log.printLine("VM #" + vm.getId() + " has completed its execution and destroyed");
+//				continue;
+//			}
 
 			double totalAllocatedMips = getVmScheduler().getTotalAllocatedMipsForVm(vm);
 
@@ -95,8 +95,6 @@ public class HostDynamicWorkload extends Host {
 				Log.formatLine("%.2f: [Host #" + getId() + "] MIPS for VM #" + vm.getId() + " by PEs (" + getPesNumber() + " * " + getVmScheduler().getPeCapacity() + ")." + pesString, CloudSim.clock());
 			}
 
-			vm.addStateHistoryEntry(currentTime, totalAllocatedMips, totalRequestedMips, (vm.isInMigration() && !getVmsMigratingIn().contains(vm)));
-
 			if (getVmsMigratingIn().contains(vm)) {
 				Log.formatLine("%.2f: [Host #" + getId() + "] VM #" + vm.getId() + " is being migrated to Host #" + getId(), CloudSim.clock());
 			} else {
@@ -104,6 +102,8 @@ public class HostDynamicWorkload extends Host {
 					Log.formatLine("%.2f: [Host #" + getId() + "] Under allocated MIPS for VM #" + vm.getId() + ": %.2f", CloudSim.clock(), totalRequestedMips - totalAllocatedMips);
 				}
 
+				vm.addStateHistoryEntry(currentTime, totalAllocatedMips, totalRequestedMips, (vm.isInMigration() && !getVmsMigratingIn().contains(vm)));
+
 				if (vm.isInMigration()) {
 					Log.formatLine("%.2f: [Host #" + getId() + "] VM #" + vm.getId() + " is in migration", CloudSim.clock());
 					totalAllocatedMips /= 0.9; // performance degradation due to migration - 10%
@@ -265,7 +265,15 @@ public class HostDynamicWorkload extends Host {
      * @param isActive the is active
      */
     public void addStateHistoryEntry(double time, double allocatedMips, double requestedMips, boolean isActive) {
-		getStateHistory().add(new HostStateHistoryEntry(time, allocatedMips, requestedMips, isActive));
+		HostStateHistoryEntry newState = new HostStateHistoryEntry(time, allocatedMips, requestedMips, isActive);
+    	if (!getStateHistory().isEmpty()) {
+    		HostStateHistoryEntry previousState = getStateHistory().get(getStateHistory().size() - 1);
+	     	if (previousState.getTime() == time) {
+	    		getStateHistory().set(getStateHistory().size() - 1, newState);
+	    		return;
+	    	}
+    	}
+		getStateHistory().add(newState);
 	}
 
 }

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/UtilizationModelNull.java

+/*
+ * Title:        CloudSim Toolkit
+ * Description:  CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
+ * Licence:      GPL - http://www.gnu.org/copyleft/gpl.html
+ *
+ * Copyright (c) 2009-2010, The University of Melbourne, Australia
+ */
+
+package org.cloudbus.cloudsim;
+
+/**
+ * The UtilizationModelNull class is a simple model, according to which
+ * a Cloudlet always require zero capacity.
+ *
+ * @author		Anton Beloglazov
+ * @since		CloudSim Toolkit 2.0
+ */
+public class UtilizationModelNull implements UtilizationModel {
+
+	/* (non-Javadoc)
+	 * @see cloudsim.power.UtilizationModel#getUtilization(double)
+	 */
+	@Override
+	public double getUtilization(double time) {
+		return 0;
+	}
+
+}

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/Vm.java

@@ -12,6 +12,8 @@ import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
 
+import org.cloudbus.cloudsim.core.CloudSim;
+
 /**
  * Vm represents a VM: it runs inside a Host, sharing hostList
  * with other VMs. It processes cloudlets. This processing happens according
@@ -150,13 +152,17 @@ public class Vm {
 
 		if (isRecentlyCreated()) {
 			boolean mipsIsNull = true;
-			for (double mips : currentRequestedMips) {
-				if (mips > 0.0) {
+			if (CloudSim.clock() > 0) {
 				mipsIsNull = false;
 				setRecentlyCreated(false);
-					break;
-				}
 			}
+//			for (double mips : currentRequestedMips) {
+//				if (mips > 0.0) {
+//					mipsIsNull = false;
+//					setRecentlyCreated(false);
+//					break;
+//				}
+//			}
 
 			//if (mipsIsNull && isRecentlyCreated()) {
 			if (mipsIsNull) {
@@ -204,8 +210,11 @@ public class Vm {
 	 * @return the current requested bw
 	 */
 	public long getCurrentRequestedBw() {
+		if (isRecentlyCreated()) {
 			return getBw();
 		}
+		return (long) (getCloudletScheduler().getCurrentRequestedUtilizationOfBw() * getBw());
+	}
 
 	/**
 	 * Gets the current requested ram.
@@ -213,8 +222,11 @@ public class Vm {
 	 * @return the current requested ram
 	 */
 	public int getCurrentRequestedRam() {
+		if (isRecentlyCreated()) {
 			return getRam();
 		}
+		return (int) (getCloudletScheduler().getCurrentRequestedUtilizationOfRam() * getRam());
+	}
 
 	/**
 	 * Get utilization created by all clouddlets running on this VM.
@@ -602,7 +614,15 @@ public class Vm {
      * @param isInMigration the is in migration
      */
     public void addStateHistoryEntry(double time, double allocatedMips, double requestedMips, boolean isInMigration) {
-		getStateHistory().add(new VmStateHistoryEntry(time, allocatedMips, requestedMips, isInMigration));
+    	VmStateHistoryEntry newState = new VmStateHistoryEntry(time, allocatedMips, requestedMips, isInMigration);
+    	if (!getStateHistory().isEmpty()) {
+	    	VmStateHistoryEntry previousState = getStateHistory().get(getStateHistory().size() - 1);
+	     	if (previousState.getTime() == time) {
+	    		getStateHistory().set(getStateHistory().size() - 1, newState);
+	    		return;
+	    	}
+    	}
+		getStateHistory().add(newState);
 	}
 
 }

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java

@@ -87,6 +87,8 @@ public class PowerDatacenter extends Datacenter {
 
 		// if some time passed since last processing
 		if (currentTime > getLastProcessTime()) {
+			System.out.print(currentTime + " ");
+
 			double minTime = updateCloudetProcessingWithoutSchedulingFutureEventsForce();
 
 			if (!isDisableMigrations()) {
@@ -110,7 +112,7 @@ public class PowerDatacenter extends Datacenter {
 						/** VM migration delay = RAM / bandwidth **/
 						// we use BW / 2 to model BW available for migration purposes, the other half of BW is for VM communication
 						// around 16 seconds for 1024 MB using 1 Gbit/s network
-						send(getId(), vm.getCurrentAllocatedRam() / ((double) targetHost.getBw() / (2 * 8000)), CloudSimTags.VM_MIGRATE, migrate);
+						send(getId(), vm.getRam() / ((double) targetHost.getBw() / (2 * 8000)), CloudSimTags.VM_MIGRATE, migrate);
 					}
 				}
 			}
@@ -148,33 +150,36 @@ public class PowerDatacenter extends Datacenter {
 		double timeDiff = currentTime - getLastProcessTime();
 		double timeFrameDatacenterEnergy = 0.0;
 
-		if (timeDiff > 0) {
-			Log.formatLine("\nEnergy consumption for the last time frame from %.2f to %.2f:", getLastProcessTime(), currentTime);
+		Log.printLine("\n\n--------------------------------------------------------------\n\n");
+		Log.formatLine("New resource usage for the time frame starting at %.2f:", currentTime);
 
 		for (PowerHost host : this.<PowerHost>getHostList()) {
-				double timeFrameHostEnergy = host.getEnergyLinearInterpolation(host.getPreviousUtilizationOfCpu(), host.getUtilizationOfCpu(), timeDiff);
-				timeFrameDatacenterEnergy += timeFrameHostEnergy;
-
 			Log.printLine();
-				Log.formatLine("%.2f: [Host #%d] utilization is %.2f%%", currentTime, host.getId(), host.getUtilizationOfCpu() * 100);
-				Log.formatLine("%.2f: [Host #%d] energy is %.2f W*sec", currentTime, host.getId(), timeFrameHostEnergy);
+
+			double time = host.updateVmsProcessing(currentTime); // inform VMs to update processing
+			if (time < minTime) {
+				minTime = time;
 			}
 
-			Log.formatLine("\n%.2f: Consumed energy is %.2f W*sec\n", currentTime, timeFrameDatacenterEnergy);
+			Log.formatLine("%.2f: [Host #%d] utilization is %.2f%%", currentTime, host.getId(), host.getUtilizationOfCpu() * 100);
 		}
 
-		Log.printLine("\n\n--------------------------------------------------------------\n\n");
-		Log.printLine("New resource usage for the next time frame:");
+		if (timeDiff > 0) {
+			Log.formatLine("\nEnergy consumption for the last time frame from %.2f to %.2f:", getLastProcessTime(), currentTime);
 
 			for (PowerHost host : this.<PowerHost>getHostList()) {
-			Log.printLine();
+				double previousUtilizationOfCpu = host.getPreviousUtilizationOfCpu();
+				double utilizationOfCpu = host.getUtilizationOfCpu();
+				double timeFrameHostEnergy = host.getEnergyLinearInterpolation(previousUtilizationOfCpu, utilizationOfCpu, timeDiff);
+				timeFrameDatacenterEnergy += timeFrameHostEnergy;
 
-			double time = host.updateVmsProcessing(currentTime); // inform VMs to update processing
-			if (time < minTime) {
-				minTime = time;
+				Log.printLine();
+				Log.formatLine("%.2f: [Host #%d] utilization at %.2f was %.2f%%, now is %.2f%%",
+						currentTime, host.getId(), getLastProcessTime(), previousUtilizationOfCpu * 100, utilizationOfCpu * 100);
+				Log.formatLine("%.2f: [Host #%d] energy is %.2f W*sec", currentTime, host.getId(), timeFrameHostEnergy);
 			}
 
-			Log.formatLine("%.2f: [Host #%d] utilization is %.2f%%", currentTime, host.getId(), host.getUtilizationOfCpu() * 100);
+			Log.formatLine("\n%.2f: Data center's energy is %.2f W*sec\n", currentTime, timeFrameDatacenterEnergy);
 		}
 
 		setPower(getPower() + timeFrameDatacenterEnergy);

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerHost.java

@@ -101,7 +101,7 @@ public class PowerHost extends HostDynamicWorkload {
 	 * @return the energy
 	 */
 	public double getEnergyLinearInterpolation(double fromUtilization, double toUtilization, double time) {
-		if (fromUtilization == 0 && toUtilization == 0) {
+		if (fromUtilization == 0) {
 			return 0;
 		}
 		double fromPower = getPower(fromUtilization);

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/models/PowerModelSpecPowerHpProLiantMl110G3PentiumD930.java

+package org.cloudbus.cloudsim.power.models;
+
+/**
+ * The power model of an HP ProLiant ML110 G3 (1 x [Pentium D930 3000 MHz, 2 cores], 4GB).
+ * http://www.spec.org/power_ssj2008/results/res2011q1/power_ssj2008-20110127-00342.html
+ */
+public class PowerModelSpecPowerHpProLiantMl110G3PentiumD930 extends PowerModelSpecPower {
+
+	/** The power. */
+	private final double[] power = { 105, 112, 118, 125, 131, 137, 147, 153, 157, 164, 169 };
+
+	/* (non-Javadoc)
+	 * @see org.cloudbus.cloudsim.power.models.PowerModelSpecPower#getPowerData(int)
+	 */
+	@Override
+	protected double getPowerData(int index) {
+		return power[index];
+	}
+
+}

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/models/PowerModelSpecPowerHpProLiantMl110G4Xeon3040.java

+package org.cloudbus.cloudsim.power.models;
+
+/**
+ * The power model of an HP ProLiant ML110 G4 (1 x [Xeon 3040 1860 MHz, 2 cores], 4GB).
+ * http://www.spec.org/power_ssj2008/results/res2011q1/power_ssj2008-20110127-00342.html
+ */
+public class PowerModelSpecPowerHpProLiantMl110G4Xeon3040 extends PowerModelSpecPower {
+
+	/** The power. */
+	private final double[] power = { 86, 89.4, 92.6, 96, 99.5, 102, 106, 108, 112, 114, 117 };
+
+	/* (non-Javadoc)
+	 * @see org.cloudbus.cloudsim.power.models.PowerModelSpecPower#getPowerData(int)
+	 */
+	@Override
+	protected double getPowerData(int index) {
+		return power[index];
+	}
+
+}

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/models/PowerModelSpecPowerHpProLiantMl110G5Xeon3075.java

+package org.cloudbus.cloudsim.power.models;
+
+/**
+ * The power model of an HP ProLiant ML110 G5 (1 x [Xeon 3075 2660 MHz, 2 cores], 4GB).
+ * http://www.spec.org/power_ssj2008/results/res2011q1/power_ssj2008-20110124-00339.html
+ */
+public class PowerModelSpecPowerHpProLiantMl110G5Xeon3075 extends PowerModelSpecPower {
+
+	/** The power. */
+	private final double[] power = { 93.7, 97, 101, 105, 110, 116, 121, 125, 129, 133, 135 };
+
+	/* (non-Javadoc)
+	 * @see org.cloudbus.cloudsim.power.models.PowerModelSpecPower#getPowerData(int)
+	 */
+	@Override
+	protected double getPowerData(int index) {
+		return power[index];
+	}
+
+}

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/models/PowerModelSpecPowerIbmX3250XeonX3470.java

+package org.cloudbus.cloudsim.power.models;
+
+/**
+ * The power model of an IBM server x3250 (1 x [Xeon X3470 2933 MHz, 4 cores], 8GB).
+ * http://www.spec.org/power_ssj2008/results/res2009q4/power_ssj2008-20091104-00213.html
+ */
+public class PowerModelSpecPowerIbmX3250XeonX3470 extends PowerModelSpecPower {
+
+	/** The power. */
+	private final double[] power = { 41.6, 46.7, 52.3, 57.9, 65.4, 73, 80.7, 89.5, 99.6, 105, 113 };
+
+	/* (non-Javadoc)
+	 * @see org.cloudbus.cloudsim.power.models.PowerModelSpecPower#getPowerData(int)
+	 */
+	@Override
+	protected double getPowerData(int index) {
+		return power[index];
+	}
+
+}