Implementation of the AbstractFullGridLinearEvaluator class using a callback function that If you want to be able to use different function values at the same point in different levels (for example because you are implementing a PDE solver), set exploitNesting to false in the constructor of CombigridTreeStorage. More...

#include <FullGridGridBasedEvaluator.hpp>

Inheritance diagram for sgpp::combigrid::FullGridGridBasedEvaluator< V >:

Public Member Functions
virtual V	eval (MultiIndex const &level)
	Evaluates the function given through the storage for a certain level-multi-index (see class description). More...

	FullGridGridBasedEvaluator (std::shared_ptr< AbstractCombigridStorage > storage, std::vector< std::shared_ptr< AbstractLinearEvaluator< V >>> evaluatorPrototypes, std::vector< std::shared_ptr< AbstractPointHierarchy >> pointHierarchies, GridFunction gridFunction, FullGridSummationStrategyType summationStrategyType=FullGridSummationStrategyType::LINEAR)
	Constructor. More...

std::vector< ThreadPool::Task >	getLevelTasks (MultiIndex const &level, ThreadPool::Task callback)

virtual	~FullGridGridBasedEvaluator ()

Public Member Functions inherited from sgpp::combigrid::AbstractFullGridEvaluationStrategy< V >
	AbstractFullGridEvaluationStrategy (std::shared_ptr< AbstractCombigridStorage > storage, std::vector< std::shared_ptr< AbstractLinearEvaluator< V >>> evaluatorPrototypes, std::vector< std::shared_ptr< AbstractPointHierarchy >> pointHierarchies, FullGridSummationStrategyType summationStrategyType)

std::vector< std::shared_ptr< AbstractLinearEvaluator< V > > >	getEvaluatorPrototypes ()

FullGridSummationStrategyType	getSummationStrategyType ()

void	setParameters (std::vector< V > const &params)
	Sets the parameters for the evaluators. More...

virtual	~AbstractFullGridEvaluationStrategy ()

Public Member Functions inherited from sgpp::combigrid::AbstractFullGridEvaluator< V >
	AbstractFullGridEvaluator (std::shared_ptr< AbstractCombigridStorage > storage, std::vector< std::shared_ptr< AbstractPointHierarchy >> pointHierarchies)
	Constructor. More...

virtual std::vector< base::DataVector >	getGridPoints (MultiIndex const &level)

std::shared_ptr< AbstractCombigridStorage >	getStorage ()

virtual std::shared_ptr< TensorGrid >	getTensorGrid (MultiIndex const &level, std::vector< bool > orderingConfiguration)

virtual size_t	maxNewPoints (MultiIndex const &level)

virtual size_t	numPoints (MultiIndex const &level)

virtual void	setMutex (std::shared_ptr< std::recursive_mutex > mutexPtr)
	Updates the current mutex. More...

virtual	~AbstractFullGridEvaluator ()

Protected Member Functions
void	addResults (MultiIndex const &level, std::shared_ptr< TreeStorage< double >> results)

Protected Attributes
GridFunction	gridFunction

std::shared_ptr< TreeStorage< uint8_t > >	precomputedLevels

Protected Attributes inherited from sgpp::combigrid::AbstractFullGridEvaluationStrategy< V >
std::vector< std::shared_ptr< AbstractLinearEvaluator< V > > >	evaluatorPrototypes

std::shared_ptr< AbstractFullGridSummationStrategy< V > >	summationStrategy

FullGridSummationStrategyType	summationStrategyType

Protected Attributes inherited from sgpp::combigrid::AbstractFullGridEvaluator< V >
std::shared_ptr< std::recursive_mutex >	mutexPtr
	Pointer to a mutex that is locked when doing critical operations on data. More...

std::vector< std::shared_ptr< AbstractPointHierarchy > >	pointHierarchies

std::shared_ptr< AbstractCombigridStorage >	storage
	Provides access to the function values (stored or computed on demand) More...

Detailed Description

template<typename V>
class sgpp::combigrid::FullGridGridBasedEvaluator< V >

Implementation of the AbstractFullGridLinearEvaluator class using a callback function that If you want to be able to use different function values at the same point in different levels (for example because you are implementing a PDE solver), set exploitNesting to false in the constructor of CombigridTreeStorage.

Constructor & Destructor Documentation

◆ FullGridGridBasedEvaluator()

template<typename V >

sgpp::combigrid::FullGridGridBasedEvaluator< V >::FullGridGridBasedEvaluator	(	std::shared_ptr< AbstractCombigridStorage >	storage,
		std::vector< std::shared_ptr< AbstractLinearEvaluator< V >>>	evaluatorPrototypes,
		std::vector< std::shared_ptr< AbstractPointHierarchy >>	pointHierarchies,
		GridFunction	gridFunction,
		FullGridSummationStrategyType	summationStrategyType = `FullGridSummationStrategyType::LINEAR`
	)

inline

Constructor.

Parameters

storage	Storage that stores and provides the function values for each grid point.
evaluatorPrototypes	prototype objects for the evaluators that are cloned to get an evaluator for each dimension and each level.
pointHierarchies	PointHierarchy objects for each dimension providing the points for each level and information about their ordering.
gridFunction	callback function that is called with a grid as parameters and should
summationStrategyType	strategy to gather the results of the univariate evaluators on each anisotropic full grid

return a TreeStorage that contains the values at these grid points

◆ ~FullGridGridBasedEvaluator()

template<typename V >

virtual sgpp::combigrid::FullGridGridBasedEvaluator< V >::~FullGridGridBasedEvaluator ( )

inlinevirtual

Member Function Documentation

◆ addResults()

template<typename V >

void sgpp::combigrid::FullGridGridBasedEvaluator< V >::addResults	(	MultiIndex const &	level,
		std::shared_ptr< TreeStorage< double >>	results
	)

inlineprotected

References sgpp::combigrid::AbstractFullGridEvaluationStrategy< V >::evaluatorPrototypes, sgpp::combigrid::MultiIndexIterator::getMultiIndex(), sgpp::combigrid::AbstractFullGridEvaluator< V >::pointHierarchies, and sgpp::combigrid::AbstractFullGridEvaluator< V >::storage.

Referenced by sgpp::combigrid::FullGridGridBasedEvaluator< V >::eval(), and sgpp::combigrid::FullGridGridBasedEvaluator< V >::getLevelTasks().

◆ eval()

template<typename V >

virtual V sgpp::combigrid::FullGridGridBasedEvaluator< V >::eval ( MultiIndex const & level )

inlinevirtual

Evaluates the function given through the storage for a certain level-multi-index (see class description).

Implements sgpp::combigrid::AbstractFullGridEvaluator< V >.

References sgpp::combigrid::FullGridGridBasedEvaluator< V >::addResults(), sgpp::combigrid::AbstractFullGridEvaluationStrategy< V >::evaluatorPrototypes, sgpp::combigrid::AbstractFullGridEvaluator< V >::getTensorGrid(), sgpp::combigrid::FullGridGridBasedEvaluator< V >::gridFunction, sgpp::combigrid::AbstractFullGridEvaluator< V >::pointHierarchies, and sgpp::combigrid::AbstractFullGridEvaluationStrategy< V >::summationStrategy.

Referenced by python.uq.analysis.asgc.ASGCAnalysis.ASGCAnalysis::estimateDensity().

◆ getLevelTasks()

template<typename V >

std::vector<ThreadPool::Task> sgpp::combigrid::FullGridGridBasedEvaluator< V >::getLevelTasks	(	MultiIndex const &	level,
		ThreadPool::Task	callback
	)

inlinevirtual

Returns: a vector of tasks which can be precomputed in parallel to make the (serialized) execution of eval() faster. This class only returns one task in the vector.

Parameters

level	the level which one wants to compute
callback	This callback is called (with already locked mutex) from inside one of the returned tasks when all tasks for the given level are completed and the level can be added.

Implements sgpp::combigrid::AbstractFullGridEvaluator< V >.

References sgpp::combigrid::FullGridGridBasedEvaluator< V >::addResults(), python.classifier::callback, sgpp::combigrid::AbstractFullGridEvaluationStrategy< V >::evaluatorPrototypes, sgpp::combigrid::AbstractFullGridEvaluator< V >::getTensorGrid(), grid(), sgpp::combigrid::FullGridGridBasedEvaluator< V >::gridFunction, sgpp::combigrid::AbstractFullGridEvaluator< V >::mutexPtr, and sgpp::combigrid::AbstractFullGridEvaluator< V >::pointHierarchies.