org.cloudbus.cloudsim.power

Class PowerVmAllocationPolicyMigrationLocalRegression

java.lang.Object

org.cloudbus.cloudsim.VmAllocationPolicy

org.cloudbus.cloudsim.power.PowerVmAllocationPolicyAbstract

org.cloudbus.cloudsim.power.PowerVmAllocationPolicyMigrationAbstract

org.cloudbus.cloudsim.power.PowerVmAllocationPolicyMigrationLocalRegression

Direct Known Subclasses:

PowerVmAllocationPolicyMigrationLocalRegressionRobust

public class PowerVmAllocationPolicyMigrationLocalRegression
extends PowerVmAllocationPolicyMigrationAbstract

The Local Regression (LR) VM allocation 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, ISSN: 1532-0626, Wiley Press, New York, USA, 2011, DOI: 10.1002/cpe.1867

Since:

CloudSim Toolkit 3.0

Author:

Anton Beloglazov

Constructor Summary

Constructors

Constructor and Description
PowerVmAllocationPolicyMigrationLocalRegression(List<? extends Host> hostList, PowerVmSelectionPolicy vmSelectionPolicy, double safetyParameter, double schedulingInterval, PowerVmAllocationPolicyMigrationAbstract fallbackVmAllocationPolicy) Instantiates a new power vm allocation policy migration local regression.
PowerVmAllocationPolicyMigrationLocalRegression(List<? extends Host> hostList, PowerVmSelectionPolicy vmSelectionPolicy, double safetyParameter, double schedulingInterval, PowerVmAllocationPolicyMigrationAbstract fallbackVmAllocationPolicy, double utilizationThreshold) Instantiates a new power vm allocation policy migration local regression.

Method Summary

Methods

Modifier and Type	Method and Description
PowerVmAllocationPolicyMigrationAbstract	getFallbackVmAllocationPolicy() Gets the fallback vm allocation policy.
protected double	getMaximumVmMigrationTime(PowerHost host) Gets the maximum vm migration time.
protected double[]	getParameterEstimates(double[] utilizationHistoryReversed) Gets the parameter estimates.
double	getSafetyParameter()
protected double	getSchedulingInterval() Gets the scheduling interval.
protected boolean	isHostOverUtilized(PowerHost host) Checks if is host over utilized.
void	setFallbackVmAllocationPolicy(PowerVmAllocationPolicyMigrationAbstract fallbackVmAllocationPolicy) Sets the fallback vm allocation policy.
void	setSafetyParameter(double safetyParameter)
protected void	setSchedulingInterval(double schedulingInterval) Sets the scheduling interval.

Methods inherited from class org.cloudbus.cloudsim.power.PowerVmAllocationPolicyMigrationAbstract

addHistoryEntry, areAllVmsMigratingOutOrAnyVmMigratingIn, extractHostListFromMigrationMap, findHostForVm, findHostForVm, getExecutionTimeHistoryHostSelection, getExecutionTimeHistoryTotal, getExecutionTimeHistoryVmReallocation, getExecutionTimeHistoryVmSelection, getMaxUtilizationAfterAllocation, getMetricHistory, getMigrationMapFromUnderUtilizedHosts, getNewVmPlacement, getNewVmPlacementFromUnderUtilizedHost, getOverUtilizedHosts, getPowerAfterAllocation, getSavedAllocation, getSwitchedOffHosts, getTimeHistory, getUnderUtilizedHost, getUtilizationHistory, getVmSelectionPolicy, getVmsToMigrateFromHosts, getVmsToMigrateFromUnderUtilizedHost, isHostOverUtilizedAfterAllocation, optimizeAllocation, printOverUtilizedHosts, restoreAllocation, saveAllocation, setVmSelectionPolicy

Methods inherited from class org.cloudbus.cloudsim.power.PowerVmAllocationPolicyAbstract

allocateHostForVm, allocateHostForVm, deallocateHostForVm, getHost, getHost, getVmTable

Methods inherited from class org.cloudbus.cloudsim.VmAllocationPolicy

getHostList, setHostList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PowerVmAllocationPolicyMigrationLocalRegression

public PowerVmAllocationPolicyMigrationLocalRegression(List<? extends Host> hostList,
                                               PowerVmSelectionPolicy vmSelectionPolicy,
                                               double safetyParameter,
                                               double schedulingInterval,
                                               PowerVmAllocationPolicyMigrationAbstract fallbackVmAllocationPolicy,
                                               double utilizationThreshold)

Instantiates a new power vm allocation policy migration local regression.

Parameters:

hostList - the host list

vmSelectionPolicy - the vm selection policy

schedulingInterval - the scheduling interval

fallbackVmAllocationPolicy - the fallback vm allocation policy

utilizationThreshold - the utilization threshold

PowerVmAllocationPolicyMigrationLocalRegression

public PowerVmAllocationPolicyMigrationLocalRegression(List<? extends Host> hostList,
                                               PowerVmSelectionPolicy vmSelectionPolicy,
                                               double safetyParameter,
                                               double schedulingInterval,
                                               PowerVmAllocationPolicyMigrationAbstract fallbackVmAllocationPolicy)

Instantiates a new power vm allocation policy migration local regression.

Parameters:

hostList - the host list

vmSelectionPolicy - the vm selection policy

schedulingInterval - the scheduling interval

fallbackVmAllocationPolicy - the fallback vm allocation policy

Method Detail

isHostOverUtilized

protected boolean isHostOverUtilized(PowerHost host)

Checks if is host over utilized.

Specified by:

isHostOverUtilized in class PowerVmAllocationPolicyMigrationAbstract

Parameters:

host - the host

Returns:

true, if is host over utilized

getParameterEstimates

protected double[] getParameterEstimates(double[] utilizationHistoryReversed)

Gets the parameter estimates.

Parameters:

utilizationHistoryReversed - the utilization history reversed

Returns:

the parameter estimates

getMaximumVmMigrationTime

protected double getMaximumVmMigrationTime(PowerHost host)

Gets the maximum vm migration time.

Parameters:

host - the host

Returns:

the maximum vm migration time

setSchedulingInterval

protected void setSchedulingInterval(double schedulingInterval)

Sets the scheduling interval.

Parameters:

schedulingInterval - the new scheduling interval

getSchedulingInterval

protected double getSchedulingInterval()

Gets the scheduling interval.

Returns:

the scheduling interval

setFallbackVmAllocationPolicy

public void setFallbackVmAllocationPolicy(PowerVmAllocationPolicyMigrationAbstract fallbackVmAllocationPolicy)

Sets the fallback vm allocation policy.

Parameters:

fallbackVmAllocationPolicy - the new fallback vm allocation policy

getFallbackVmAllocationPolicy

public PowerVmAllocationPolicyMigrationAbstract getFallbackVmAllocationPolicy()

Gets the fallback vm allocation policy.

Returns:

the fallback vm allocation policy

getSafetyParameter

public double getSafetyParameter()

setSafetyParameter

public void setSafetyParameter(double safetyParameter)