jbarrier

edu.bonn.cs.net.jbarrier.barrier
Class DoubleCentralReduction

java.lang.Object
  extended by edu.bonn.cs.net.jbarrier.barrier.AbstractBarrier
      extended by edu.bonn.cs.net.jbarrier.barrier.CentralBarrier
          extended by edu.bonn.cs.net.jbarrier.barrier.DoubleCentralReduction
All Implemented Interfaces:
Barrier, DoubleReduction

public class DoubleCentralReduction
extends CentralBarrier
implements DoubleReduction

Implementation of a central barrier algorithm including a double reduction.

Version:
1.0
Author:
Patrick Peschlow, Ivan Castilla Rodriguez

Field Summary
 
Fields inherited from class edu.bonn.cs.net.jbarrier.barrier.CentralBarrier
counter_, go_
 
Fields inherited from class edu.bonn.cs.net.jbarrier.barrier.AbstractBarrier
action_, genericReductor_, numParties_
 
Constructor Summary
DoubleCentralReduction(int numParties, ReductionOperator reductor)
          Constructor.
DoubleCentralReduction(int numParties, java.lang.Runnable barrierAction, ReductionOperator reductor)
          Constructor.
 
Method Summary
 double await(int threadId, double value)
          Called by a party that reaches the barrier.
 
Methods inherited from class edu.bonn.cs.net.jbarrier.barrier.CentralBarrier
await
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DoubleCentralReduction

public DoubleCentralReduction(int numParties,
                              java.lang.Runnable barrierAction,
                              ReductionOperator reductor)
Constructor.

Parameters:
numParties - the number of parties that must reach the barrier before the barrier is tripped
barrierAction - the command to execute when the barrier is tripped, or null if there is no action
reductor - the reduction operator to use

DoubleCentralReduction

public DoubleCentralReduction(int numParties,
                              ReductionOperator reductor)
Constructor.

Parameters:
numParties - the number of parties that must reach the barrier before the barrier is tripped
reductor - the reduction operator to use
Method Detail

await

public double await(int threadId,
                    double value)
Called by a party that reaches the barrier.

Specified by:
await in interface DoubleReduction
Parameters:
threadId - the ID of the party
value - the value subject to the reduction
Returns:
the result of the reduction

jbarrier

Copyright 2010 Patrick Peschlow