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src/org/cloudbus/cloudsim/power/PowerVmSelectionPolicyMinimumMigrationTime.java

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+/*
+ * 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) 2009-2012, The University of Melbourne, Australia
+ */
+
+package org.cloudbus.cloudsim.power;
+
+import java.util.List;
+
+import org.cloudbus.cloudsim.Vm;
+
+/**
+ * The Minimum Migration Time (MMT) VM selection policy.
+ * 
+ * If you are using any algorithms, policies or workload included in the power package, please cite
+ * the following paper:
+ * 
+ * Anton Beloglazov, and Rajkumar Buyya, "Optimal Online Deterministic Algorithms and Adaptive
+ * Heuristics for Energy and Performance Efficient Dynamic Consolidation of Virtual Machines in
+ * Cloud Data Centers", Concurrency and Computation: Practice and Experience (CCPE), Volume 24,
+ * Issue 13, Pages: 1397-1420, John Wiley & Sons, Ltd, New York, USA, 2012
+ * 
+ * @author Anton Beloglazov
+ * @since CloudSim Toolkit 3.0
+ */
+public class PowerVmSelectionPolicyMinimumMigrationTime extends PowerVmSelectionPolicy {
+
+	/*
+	 * (non-Javadoc)
+	 * @see
+	 * org.cloudbus.cloudsim.experiments.power.PowerVmSelectionPolicy#getVmsToMigrate(org.cloudbus
+	 * .cloudsim.power.PowerHost)
+	 */
+	@Override
+	public Vm getVmToMigrate(PowerHost host) {
+		List<PowerVm> migratableVms = getMigratableVms(host);
+		if (migratableVms.isEmpty()) {
+			return null;
+		}
+		Vm vmToMigrate = null;
+		double minMetric = Double.MAX_VALUE;
+		for (Vm vm : migratableVms) {
+			if (vm.isInMigration()) {
+				continue;
+			}
+			double metric = vm.getRam();
+			if (metric < minMetric) {
+				minMetric = metric;
+				vmToMigrate = vm;
+			}
+		}
+		return vmToMigrate;
+	}
+
+}