Package org.optaplanner.core.impl.constructionheuristic.decider

Class MultiThreadedConstructionHeuristicDecider<Solution_>

java.lang.Object

org.optaplanner.core.impl.constructionheuristic.decider.ConstructionHeuristicDecider<Solution_>

org.optaplanner.core.impl.constructionheuristic.decider.MultiThreadedConstructionHeuristicDecider<Solution_>

Type Parameters:

Solution_ - the solution type, the class with the PlanningSolution annotation

public class MultiThreadedConstructionHeuristicDecider<Solution_>
extends ConstructionHeuristicDecider<Solution_>

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	assertExpectedStepScore
protected boolean	assertShadowVariablesAreNotStaleAfterStep
protected boolean	assertStepScoreFromScratch
protected ExecutorService	executor
protected CyclicBarrier	moveThreadBarrier
protected final int	moveThreadCount
protected List<MoveThreadRunner<Solution_,?>>	moveThreadRunnerList
protected BlockingQueue<MoveThreadOperation<Solution_>>	operationQueue
protected OrderByMoveIndexBlockingQueue<Solution_>	resultQueue
protected final int	selectedMoveBufferSize
protected final ThreadFactory	threadFactory

Fields inherited from class org.optaplanner.core.impl.constructionheuristic.decider.ConstructionHeuristicDecider

assertExpectedUndoMoveScore, assertMoveScoreFromScratch, forager, logger, logIndentation, termination

Constructor Summary

Constructors

Constructor	Description
MultiThreadedConstructionHeuristicDecider(String logIndentation, Termination<Solution_> termination, ConstructionHeuristicForager<Solution_> forager, ThreadFactory threadFactory, int moveThreadCount, int selectedMoveBufferSize)

Method Summary

Modifier and Type	Method	Description
protected ExecutorService	createThreadPoolExecutor()
void	decideNextStep(ConstructionHeuristicStepScope<Solution_> stepScope, Placement<Solution_> placement)
void	phaseEnded(ConstructionHeuristicPhaseScope<Solution_> phaseScope)
void	phaseStarted(ConstructionHeuristicPhaseScope<Solution_> phaseScope)
void	setAssertExpectedStepScore(boolean assertExpectedStepScore)
void	setAssertShadowVariablesAreNotStaleAfterStep(boolean assertShadowVariablesAreNotStaleAfterStep)
void	setAssertStepScoreFromScratch(boolean assertStepScoreFromScratch)
void	solvingError(SolverScope<Solution_> solverScope, Exception exception)

Methods inherited from class org.optaplanner.core.impl.constructionheuristic.decider.ConstructionHeuristicDecider

doMove, getForager, pickMove, setAssertExpectedUndoMoveScore, setAssertMoveScoreFromScratch, solvingEnded, solvingStarted, stepEnded, stepStarted

Methods inherited from class java.lang.Object

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

Field Details

threadFactory

protected final ThreadFactory threadFactory

moveThreadCount

protected final int moveThreadCount

selectedMoveBufferSize

protected final int selectedMoveBufferSize

assertStepScoreFromScratch

protected boolean assertStepScoreFromScratch

assertExpectedStepScore

protected boolean assertExpectedStepScore

assertShadowVariablesAreNotStaleAfterStep

protected boolean assertShadowVariablesAreNotStaleAfterStep

operationQueue

protected BlockingQueue<MoveThreadOperation<Solution_>> operationQueue

resultQueue

protected OrderByMoveIndexBlockingQueue<Solution_> resultQueue

moveThreadBarrier

protected CyclicBarrier moveThreadBarrier

executor

protected ExecutorService executor

moveThreadRunnerList

protected List<MoveThreadRunner<Solution_,?>> moveThreadRunnerList

Constructor Details

MultiThreadedConstructionHeuristicDecider

public MultiThreadedConstructionHeuristicDecider(String logIndentation,
 Termination<Solution_> termination,
 ConstructionHeuristicForager<Solution_> forager,
 ThreadFactory threadFactory,
 int moveThreadCount,
 int selectedMoveBufferSize)

Method Details

setAssertStepScoreFromScratch

public void setAssertStepScoreFromScratch(boolean assertStepScoreFromScratch)

setAssertExpectedStepScore

public void setAssertExpectedStepScore(boolean assertExpectedStepScore)

setAssertShadowVariablesAreNotStaleAfterStep

public void setAssertShadowVariablesAreNotStaleAfterStep(boolean assertShadowVariablesAreNotStaleAfterStep)

phaseStarted

public void phaseStarted(ConstructionHeuristicPhaseScope<Solution_> phaseScope)

Overrides:

phaseStarted in class ConstructionHeuristicDecider<Solution_>

phaseEnded

public void phaseEnded(ConstructionHeuristicPhaseScope<Solution_> phaseScope)

Overrides:

phaseEnded in class ConstructionHeuristicDecider<Solution_>

solvingError

public void solvingError(SolverScope<Solution_> solverScope,
 Exception exception)

Overrides:

solvingError in class ConstructionHeuristicDecider<Solution_>

createThreadPoolExecutor

protected ExecutorService createThreadPoolExecutor()

decideNextStep

public void decideNextStep(ConstructionHeuristicStepScope<Solution_> stepScope,
 Placement<Solution_> placement)

Overrides:

decideNextStep in class ConstructionHeuristicDecider<Solution_>