cusack.hcg.games.pebble.algorithms.pebblingNumber

Class PebblingNumberForkJoinTask

java.lang.Object

java.util.concurrent.ForkJoinTask<V>

java.util.concurrent.RecursiveTask<java.lang.Integer>

cusack.hcg.games.pebble.algorithms.pebblingNumber.PebblingNumberForkJoinTask

All Implemented Interfaces:

java.io.Serializable, java.util.concurrent.Future<java.lang.Integer>

public class PebblingNumberForkJoinTask
extends java.util.concurrent.RecursiveTask<java.lang.Integer>

Author:

Admin

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
long	numberMovesMade

Constructor Summary

Constructors

Constructor and Description
PebblingNumberForkJoinTask(int startIndex, int numPebbles, int[] config, PebbleInstance puz, int pebNumBound)
PebblingNumberForkJoinTask(int startIndex, int numPebbles, int[] config, PebbleInstance puz, int pebNumBound, java.util.concurrent.atomic.AtomicBoolean quitRequested) This version of the constructor is used so that it passes the same quitRequested boolean object to all of the tasks that are part of this computation.
PebblingNumberForkJoinTask(int startIndex, int numPebbles, int[] config, PebbleInstance puz, int pebNumBound, int root) Use this for rooted pebbling number.
PebblingNumberForkJoinTask(int startIndex, int numPebbles, int[] config, PebbleInstance puz, int pebNumBound, int root, java.util.concurrent.atomic.AtomicBoolean quitRequested) Use this constructor to do rooted pebbling number.

Method Summary

Modifier and Type	Method and Description
void	requestQuit()

Methods inherited from class java.util.concurrent.RecursiveTask

getRawResult

Methods inherited from class java.util.concurrent.ForkJoinTask

adapt, adapt, adapt, cancel, compareAndSetForkJoinTaskTag, complete, completeExceptionally, fork, get, get, getException, getForkJoinTaskTag, getPool, getQueuedTaskCount, getSurplusQueuedTaskCount, helpQuiesce, inForkJoinPool, invoke, invokeAll, invokeAll, invokeAll, isCancelled, isCompletedAbnormally, isCompletedNormally, isDone, join, quietlyComplete, quietlyInvoke, quietlyJoin, reinitialize, setForkJoinTaskTag, tryUnfork

Methods inherited from class java.lang.Object

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

Field Detail

numberMovesMade

public long numberMovesMade

Constructor Detail

PebblingNumberForkJoinTask

public PebblingNumberForkJoinTask(int startIndex,
                                  int numPebbles,
                                  int[] config,
                                  PebbleInstance puz,
                                  int pebNumBound,
                                  java.util.concurrent.atomic.AtomicBoolean quitRequested)

This version of the constructor is used so that it passes the same quitRequested boolean object to all of the tasks that are part of this computation. Then when a quit is requested, all threads will stop.

Parameters:

startIndex -

numPebbles -

config -

puz -

quitRequested -

PebblingNumberForkJoinTask

public PebblingNumberForkJoinTask(int startIndex,
                                  int numPebbles,
                                  int[] config,
                                  PebbleInstance puz,
                                  int pebNumBound,
                                  int root,
                                  java.util.concurrent.atomic.AtomicBoolean quitRequested)

Use this constructor to do rooted pebbling number.

Parameters:

startIndex -

numPebbles -

config -

puz -

pebNumBound -

root -

quitRequested -

PebblingNumberForkJoinTask

public PebblingNumberForkJoinTask(int startIndex,
                                  int numPebbles,
                                  int[] config,
                                  PebbleInstance puz,
                                  int pebNumBound)

Parameters:

startIndex - The first index at which to place pebbles.

numPebbles - The number of pebbles in the starting configuration (quicker to keep track than recompute).

config - The starting configuration. This array will be copied (For the sake of concurrency).

puz - It is assumed that this puzzle has no pebbles (for the sake of efficiency).

PebblingNumberForkJoinTask

public PebblingNumberForkJoinTask(int startIndex,
                                  int numPebbles,
                                  int[] config,
                                  PebbleInstance puz,
                                  int pebNumBound,
                                  int root)

Use this for rooted pebbling number.

Parameters:

startIndex -

numPebbles -

config -

puz -

pebNumBound -

root -

Method Detail

requestQuit

public void requestQuit()