139 lines
3.5 KiB
Java
139 lines
3.5 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.HostDynamicWorkload;
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import org.cloudbus.cloudsim.Pe;
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import org.cloudbus.cloudsim.VmScheduler;
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import org.cloudbus.cloudsim.power.models.PowerModel;
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import org.cloudbus.cloudsim.provisioners.BwProvisioner;
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import org.cloudbus.cloudsim.provisioners.RamProvisioner;
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/**
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* PowerHost class enables simulation of power-aware hosts.
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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 2.0
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*/
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public class PowerHost extends HostDynamicWorkload {
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/** The power model. */
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private PowerModel powerModel;
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/**
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* Instantiates a new host.
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*
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* @param id the id
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* @param ramProvisioner the ram provisioner
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* @param bwProvisioner the bw provisioner
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* @param storage the storage
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* @param peList the pe list
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* @param vmScheduler the VM scheduler
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*/
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public PowerHost(
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int id,
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RamProvisioner ramProvisioner,
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BwProvisioner bwProvisioner,
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long storage,
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List<? extends Pe> peList,
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VmScheduler vmScheduler,
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PowerModel powerModel) {
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super(id, ramProvisioner, bwProvisioner, storage, peList, vmScheduler);
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setPowerModel(powerModel);
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}
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/**
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* Gets the power. For this moment only consumed by all PEs.
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*
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* @return the power
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*/
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public double getPower() {
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return getPower(getUtilizationOfCpu());
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}
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/**
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* Gets the power. For this moment only consumed by all PEs.
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*
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* @param utilization the utilization
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* @return the power
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*/
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protected double getPower(double utilization) {
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double power = 0;
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try {
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power = getPowerModel().getPower(utilization);
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} catch (Exception e) {
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e.printStackTrace();
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System.exit(0);
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}
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return power;
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}
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/**
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* Gets the max power that can be consumed by the host.
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*
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* @return the max power
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*/
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public double getMaxPower() {
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double power = 0;
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try {
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power = getPowerModel().getPower(1);
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} catch (Exception e) {
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e.printStackTrace();
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System.exit(0);
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}
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return power;
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}
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/**
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* Gets the energy consumption using linear interpolation of the utilization change.
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*
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* @param fromUtilization the from utilization
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* @param toUtilization the to utilization
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* @param time the time
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* @return the energy
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*/
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public double getEnergyLinearInterpolation(double fromUtilization, double toUtilization, double time) {
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if (fromUtilization == 0) {
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return 0;
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}
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double fromPower = getPower(fromUtilization);
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double toPower = getPower(toUtilization);
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return (fromPower + (toPower - fromPower) / 2) * time;
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}
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/**
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* Sets the power model.
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*
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* @param powerModel the new power model
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*/
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protected void setPowerModel(PowerModel powerModel) {
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this.powerModel = powerModel;
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}
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/**
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* Gets the power model.
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*
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* @return the power model
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*/
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public PowerModel getPowerModel() {
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return powerModel;
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}
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}
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