Package org.apache.commons.rng.examples.jmh.sampling.distribution

Class EnumeratedDistributionSamplersPerformance

java.lang.Object

org.apache.commons.rng.examples.jmh.sampling.distribution.EnumeratedDistributionSamplersPerformance

public class EnumeratedDistributionSamplersPerformance
extends Object

Executes benchmark to compare the speed of generation of random numbers from an enumerated discrete probability distribution.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EnumeratedDistributionSamplersPerformance.DirichletDistributionSources	Sample random probability arrays from a Dirichlet distribution.
static class	EnumeratedDistributionSamplersPerformance.FastLoadedDiceRollerDiscreteSamplerSources	The FastLoadedDiceRollerDiscreteSampler samplers to use for testing.
static class	EnumeratedDistributionSamplersPerformance.KnownDistributionSources	Define known probability distributions for testing.
static class	EnumeratedDistributionSamplersPerformance.LocalRandomSources	The random sources to use for testing.
static class	EnumeratedDistributionSamplersPerformance.RandomDistributionSources	Define random probability distributions of known size for testing.
static class	EnumeratedDistributionSamplersPerformance.SamplerSources	The DiscreteSampler samplers to use for testing.

Constructor Summary

Constructors

Constructor	Description
EnumeratedDistributionSamplersPerformance()

Method Summary

Modifier and Type	Method	Description
int	baselineInt()	Baseline for the JMH timing overhead for production of an int value.
int	baselineNextDouble(EnumeratedDistributionSamplersPerformance.LocalRandomSources sources)	Baseline for the production of a double value.
int	sampleDirichlet(EnumeratedDistributionSamplersPerformance.DirichletDistributionSources sources)	Run the sampler.
int	sampleFast(EnumeratedDistributionSamplersPerformance.FastLoadedDiceRollerDiscreteSamplerSources sources)	Run the sampler.
int	sampleKnown(EnumeratedDistributionSamplersPerformance.KnownDistributionSources sources)	Run the sampler.
int	sampleRandom(EnumeratedDistributionSamplersPerformance.RandomDistributionSources sources)	Run the sampler.
int	singleSampleDirichlet(EnumeratedDistributionSamplersPerformance.DirichletDistributionSources sources)	Create and run the sampler.
int	singleSampleFast(EnumeratedDistributionSamplersPerformance.FastLoadedDiceRollerDiscreteSamplerSources sources)	Create and run the sampler.
int	singleSampleKnown(EnumeratedDistributionSamplersPerformance.KnownDistributionSources sources)	Create and run the sampler.
int	singleSampleRandom(EnumeratedDistributionSamplersPerformance.RandomDistributionSources sources)	Create and run the sampler.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumeratedDistributionSamplersPerformance

public EnumeratedDistributionSamplersPerformance()

Method Detail

baselineInt

public int baselineInt()

Baseline for the JMH timing overhead for production of an int value.

Returns:

the int value

baselineNextDouble

public int baselineNextDouble(EnumeratedDistributionSamplersPerformance.LocalRandomSources sources)

Baseline for the production of a double value. This is used to assess the performance of the underlying random source.

Parameters:

sources - Source of randomness.

Returns:

the int value

sampleKnown

public int sampleKnown(EnumeratedDistributionSamplersPerformance.KnownDistributionSources sources)

Run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

singleSampleKnown

public int singleSampleKnown(EnumeratedDistributionSamplersPerformance.KnownDistributionSources sources)

Create and run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

sampleRandom

public int sampleRandom(EnumeratedDistributionSamplersPerformance.RandomDistributionSources sources)

Run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

singleSampleRandom

public int singleSampleRandom(EnumeratedDistributionSamplersPerformance.RandomDistributionSources sources)

Create and run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

sampleDirichlet

public int sampleDirichlet(EnumeratedDistributionSamplersPerformance.DirichletDistributionSources sources)

Run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

singleSampleDirichlet

public int singleSampleDirichlet(EnumeratedDistributionSamplersPerformance.DirichletDistributionSources sources)

Create and run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

sampleFast

public int sampleFast(EnumeratedDistributionSamplersPerformance.FastLoadedDiceRollerDiscreteSamplerSources sources)

Run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value

singleSampleFast

public int singleSampleFast(EnumeratedDistributionSamplersPerformance.FastLoadedDiceRollerDiscreteSamplerSources sources)

Create and run the sampler.

Parameters:

sources - Source of randomness.

Returns:

the sample value