galib::benchmark::HimmelblauFitness< GeneType > Class Template Reference

Implementation of Himmelblau's function. More...

#include <HimmelblauFunction.h>

Inheritance diagram for galib::benchmark::HimmelblauFitness< GeneType >:

Public Member Functions
	HimmelblauFitness ()=default
double	evaluate (const std::vector< GeneType > &phenotype) const override
	Evaluates the 2D Himmelblau function.
std::size_t	size () const
	Returns the dimensionality of the optimization problem.
GeneType	getLowerBound (const std::size_t dimension) const override
	Gets the lower bound for a specific dimension.
GeneType	getUpperBound (const std::size_t dimension) const override
	Gets the upper bound for a specific dimension.
Public Member Functions inherited from galib::FitnessFunction< GeneType >
virtual	~FitnessFunction ()=default
virtual std::string	name () const
	Short identifier used to select a GPU evaluation kernel.
GeneType	getLowerBound () const
	Convenience method to get the lower bound of the first dimension.
GeneType	getUpperBound () const
	Convenience method to get the upper bound of the first dimension.

Detailed Description

template<typename GeneType = double>
class galib::benchmark::HimmelblauFitness< GeneType >

Implementation of Himmelblau's function.

A multi-modal 2D function with 4 identical local minima. Global minima: f(3.0, 2.0) = 0, f(-2.805, 3.131) = 0, f(-3.779, -3.283) = 0, f(3.584, -1.848) = 0.

Template Parameters

GeneType

The numeric type of the genes.

Definition at line 23 of file HimmelblauFunction.h.

Constructor & Destructor Documentation

HimmelblauFitness()

template<typename GeneType = double>

galib::benchmark::HimmelblauFitness< GeneType >::HimmelblauFitness ( )

default

Member Function Documentation

evaluate()

template<typename GeneType = double>

double galib::benchmark::HimmelblauFitness< GeneType >::evaluate ( const std::vector< GeneType > &  phenotype ) const

inlineoverridevirtual

Evaluates the 2D Himmelblau function.

Parameters

phenotype

Must have exactly 2 elements.

Returns

Fitness value.

Exceptions

std::invalid_argument

if phenotype size != 2.

Implements galib::FitnessFunction< GeneType >.

Definition at line 38 of file HimmelblauFunction.h.

getLowerBound()

template<typename GeneType = double>

GeneType galib::benchmark::HimmelblauFitness< GeneType >::getLowerBound ( const std::size_t  dimension ) const

inlineoverridevirtual

Gets the lower bound for a specific dimension.

Parameters

dimension

Index of the dimension.

Returns

Lower bound value.

Implements galib::FitnessFunction< GeneType >.

Definition at line 59 of file HimmelblauFunction.h.

getUpperBound()

template<typename GeneType = double>

GeneType galib::benchmark::HimmelblauFitness< GeneType >::getUpperBound ( const std::size_t  dimension ) const

inlineoverridevirtual

Gets the upper bound for a specific dimension.

Parameters

dimension

Index of the dimension.

Returns

Upper bound value.

Implements galib::FitnessFunction< GeneType >.

Definition at line 63 of file HimmelblauFunction.h.

size()

template<typename GeneType = double>

std::size_t galib::benchmark::HimmelblauFitness< GeneType >::size ( ) const

inlinevirtual

Returns the dimensionality of the optimization problem.

Returns

Number of dimensions.

Implements galib::FitnessFunction< GeneType >.

Definition at line 55 of file HimmelblauFunction.h.

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The documentation for this class was generated from the following file:

• include/benchmarks/HimmelblauFunction.h