de.javagl.common.concurrent

Class ParallelRangeExecutor

java.lang.Object

de.javagl.common.concurrent.ParallelRangeExecutor

public class ParallelRangeExecutor
extends Object

Utility class that can perform an execution on a certain range in parallel. The execution is delegated to implementations of the ParallelRangeExecutor.RangeExecutor interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ParallelRangeExecutor.RangeExecutor An interface that describes an execution that can be applied to a range of elements

Method Summary

Modifier and Type	Method and Description
static void	execute(int parallelism, ExecutorService executorService, int globalMin, int globalMax, ParallelRangeExecutor.RangeExecutor rangeExecutor) Perform a parallel execution of the given ParallelRangeExecutor.RangeExecutor with the specified range and parallelism level on the given executor service.

Methods inherited from class java.lang.Object

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

Method Detail

execute

public static void execute(int parallelism,
                           ExecutorService executorService,
                           int globalMin,
                           int globalMax,
                           ParallelRangeExecutor.RangeExecutor rangeExecutor)

Perform a parallel execution of the given ParallelRangeExecutor.RangeExecutor with the specified range and parallelism level on the given executor service.

The actual number of tasks that will be created is min(parallelism, globalMax-globalMin.

Parameters:

parallelism - The parallelism. This is the maximum number of tasks that will be created in order to process the specified range. (If the range is smaller than this parallelism level, then fewer tasks will be created)

executorService - The executor service

globalMin - The global minimum index of the range

globalMax - The global maximum index of the range

rangeExecutor - The ParallelRangeExecutor.RangeExecutor to which the computation for the sub-ranges will be delegated.

Throws:

IllegalArgumentException - If the parallelism is not positive

IllegalArgumentException - If the global minimum is larger than the global maximum.