gridsim.parallel.profile
Class TimeSlot

Object
  TimeSlot

public class TimeSlot
extends Object

This class defines a time slot. A time slot can be used to represent a free fragment in the scheduling queue. This may be useful for users who want to implement policies that perform best-fit, next-fit or worst-fit time slot selection. For a description on how time slots can be utilised, please read the following paper about the MAUI scheduler:

• David B. Jackson, Quinn Snell and Mark J. Clement. Core Algorithms of the Maui Scheduler, Revised Papers from the 7th International Workshop on Job Scheduling Strategies for Parallel Processing (JSSPP '01), Lecture Notes in Computer Science, pp. 87-102, London, UK.

Since:

5.0

Author:

Marcos Dias de Assuncao

See Also:

PERange, PERangeList

Constructor Summary

TimeSlot(double startTime, double finishTime, PERangeList ranges)
Default constructor sets

Method Summary

double	getDuration() Returns the time duration of this time slot.
double	getFinishTime() Returns the finish time of this time slot
int	getNumPE() Returns the number of PEs available at the time slot
PERangeList	getPERanges() Returns the PE ranges available at the time slot
double	getStartTime() Returns the start time of this time slot
boolean	setFinishTime(double finishTime) Sets the finish time of the time slot
boolean	setPERanges(PERangeList ranges) Sets the ranges of the time slot
boolean	setStartTime(double startTime) Sets the start time of the time slot
String	toString() Creates a string representation of the list

Methods inherited from class Object

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

Constructor Detail

TimeSlot

public TimeSlot(double startTime,
                double finishTime,
                PERangeList ranges)

Default constructor sets

Parameters:

startTime - the start time of the time slot

finishTime - the finish time of the time slot

ranges - the list of PE ranges available at the slot

Method Detail

setStartTime

public boolean setStartTime(double startTime)

Sets the start time of the time slot

Parameters:

startTime - the start time

Returns:

true if set successfully; false otherwise.

Pre Condition:

startTime >= 0

setFinishTime

public boolean setFinishTime(double finishTime)

Sets the finish time of the time slot

Parameters:

finishTime - the finish time

Returns:

true if set successfully; false otherwise.

Pre Condition:

finishTime >= 0

setPERanges

public boolean setPERanges(PERangeList ranges)

Sets the ranges of the time slot

Parameters:

ranges - the ranges of this time slot

Returns:

true if set successfully; false otherwise.

Pre Condition:

ranges != null

getStartTime

public double getStartTime()

Returns the start time of this time slot

Returns:

the start time of this time slot

getFinishTime

public double getFinishTime()

Returns the finish time of this time slot

Returns:

the finish time of this time slot

getDuration

public double getDuration()

Returns the time duration of this time slot.

Returns:

the time duration of this time slot.

getPERanges

public PERangeList getPERanges()

Returns the PE ranges available at the time slot

Returns:

the PE ranges available at the time slot

getNumPE

public int getNumPE()

Returns the number of PEs available at the time slot

Returns:

the number of PEs available at the time slot

toString

public String toString()

Creates a string representation of the list

Overrides:

toString in class Object

Returns:

a string representation