org.cloudbus.cloudsim.power.models

Class PowerModelAbstract

java.lang.Object

org.cloudbus.cloudsim.power.models.PowerModelAbstract

All Implemented Interfaces:

PowerAware, PowerModel

Direct Known Subclasses:

PowerModelSimple, PowerModelSpecPower

public abstract class PowerModelAbstract
extends Object
implements PowerModel

An abstract implementation of a PowerModel.

Since:

CloudSim Plus 1.2.0

Author:

raysaoliveira

Field Summary

Fields inherited from interface org.cloudbus.cloudsim.power.models.PowerModel

NULL

Constructor Summary

Constructors

Constructor and Description
PowerModelAbstract()

Method Summary

Modifier and Type	Method and Description
double	getEnergyLinearInterpolation(double fromUtilization, double toUtilization, double time) Gets an estimation of energy consumption using linear interpolation of the utilization change for a given time interval.
Host	getHost()
double	getPower() Gets the current power supply in Watts (w).
double	getPower(double utilization) Gets the power supply in Watts (W), according to the utilization percentage of a critical resource, such as CPU (which is currently the only resource considered).
protected abstract double	getPowerInternal(double utilization) An internal method to be implemented by sub classes to get the power supply for the current CPU utilization.
void	setHost(Host host)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.cloudbus.cloudsim.power.models.PowerModel

getMaxPower

Methods inherited from interface org.cloudbus.cloudsim.power.models.PowerAware

getPowerInKWatts, wattsSecToKWattsHour

Constructor Detail

PowerModelAbstract

public PowerModelAbstract()

Method Detail

getHost

public Host getHost()

Specified by:

getHost in interface PowerModel

setHost

public final void setHost(Host host)

Specified by:

setHost in interface PowerModel

getPower

public double getPower()

Description copied from interface: PowerAware

Gets the current power supply in Watts (w).

Specified by:

getPower in interface PowerAware

Returns:

the power supply in Watts (w)

See Also:

PowerAware.getPowerInKWatts()

getPower

public final double getPower(double utilization)
                      throws IllegalArgumentException

Description copied from interface: PowerModel

Gets the power supply in Watts (W), according to the utilization percentage of a critical resource, such as CPU (which is currently the only resource considered).

Specified by:

getPower in interface PowerModel

Parameters:

utilization - the utilization percentage (between [0 and 1]) of a resource that impacts power supply.

Returns:

the power supply in Watts (W)

Throws:

IllegalArgumentException - when the utilization percentage is not between [0 and 1]

getPowerInternal

protected abstract double getPowerInternal(double utilization)
                                    throws IllegalArgumentException

An internal method to be implemented by sub classes to get the power supply for the current CPU utilization.

The basic parameter validation is performed by the getPower(double) method.

Parameters:

utilization - the utilization percentage (between [0 and 1]) of a resource that is critical for power supply.

Returns:

the power supply for the given CPU utilization

Throws:

IllegalArgumentException - when the utilization percentage is not between [0 and 1]

getEnergyLinearInterpolation

public double getEnergyLinearInterpolation(double fromUtilization,
                                           double toUtilization,
                                           double time)

Description copied from interface: PowerModel

Gets an estimation of energy consumption using linear interpolation of the utilization change for a given time interval. It's required to set a PowerModel in order to get power usage data.

Specified by:

getEnergyLinearInterpolation in interface PowerModel

Parameters:

fromUtilization - the initial utilization percentage

toUtilization - the final utilization percentage

time - the time span (in seconds) between the initial and final utilization to compute the energy consumption

Returns:

the estimated energy consumption in Watts-sec (Ws)