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