sgpp::base::StencilHierarchisationLinear Class Reference

Class that implements the hierarchisation on a linear sparse grid. More...

#include <StencilHierarchisationLinear.hpp>

Public Member Functions
void	operator() (DataVector &source, DataVector &result, grid_iterator &index, size_t dim)
	Implements operator() needed by the sweep class during the grid traversal. More...
	StencilHierarchisationLinear (GridStorage &storage, OperationStencilHierarchisation::IndexStencil &surplusStencil, OperationStencilHierarchisation::IndexStencil &neighborStencil, OperationStencilHierarchisation::WeightStencil &weightStencil)
	Constructor, must be bind to a grid. More...
	~StencilHierarchisationLinear ()
	Destructor. More...

Protected Types
typedef GridStorage::grid_iterator	grid_iterator

Protected Member Functions
void	rec (DataVector &source, DataVector &result, grid_iterator &index, size_t dim, int seql, int seqr)
	Recursive hierarchisaton algorithm, this algorithms works in-place -> source should be equal to result. More...

Protected Attributes
OperationStencilHierarchisation::IndexStencil &	_neighborStencil
OperationStencilHierarchisation::IndexStencil &	_surplusStencil
OperationStencilHierarchisation::WeightStencil &	_weightStencil
GridStorage &	storage
	the grid object More...

Detailed Description

Class that implements the hierarchisation on a linear sparse grid.

Therefore the ()operator has to be implement in order to use the sweep algorithm for the grid traversal

Member Typedef Documentation

grid_iterator

typedef GridStorage::grid_iterator sgpp::base::StencilHierarchisationLinear::grid_iterator

protected

Constructor & Destructor Documentation

StencilHierarchisationLinear()

sgpp::base::StencilHierarchisationLinear::StencilHierarchisationLinear	(	GridStorage &	storage,
		OperationStencilHierarchisation::IndexStencil &	surplusStencil,
		OperationStencilHierarchisation::IndexStencil &	neighborStencil,
		OperationStencilHierarchisation::WeightStencil &	weightStencil
	)

Constructor, must be bind to a grid.

Parameters

storage	the grid storage object of the the grid, on which the hierarchisation should be executed
surplusStencil	storage holding the grid point indices which have neighbors
neighborStencil	storage holding the grid point indices which are the neighbors
weightStencil	storage holding the weight in order to calculate the surplus at each node using it's neighbors

~StencilHierarchisationLinear()

sgpp::base::StencilHierarchisationLinear::~StencilHierarchisationLinear

(

)

Destructor.

Member Function Documentation

operator()()

void sgpp::base::StencilHierarchisationLinear::operator()	(	DataVector &	source,
		DataVector &	result,
		grid_iterator &	index,
		size_t	dim
	)

Implements operator() needed by the sweep class during the grid traversal.

This function is applied to the whole grid.

Parameters

source	this DataVector holds the node base coefficients of the function that should be applied to the sparse grid
result	this DataVector holds the linear base coefficients of the sparse grid's ansatz-functions
index	a iterator object of the grid
dim	current fixed dimension of the 'execution direction'

References rec().

rec()

void sgpp::base::StencilHierarchisationLinear::rec ( DataVector &  source, DataVector &  result, grid_iterator &  index, size_t  dim, int  seql, int  seqr  )

protected

Recursive hierarchisaton algorithm, this algorithms works in-place -> source should be equal to result.

Parameters

source	this DataVector holds the node base coefficients of the function that should be applied to the sparse grid
result	result this DataVector holds the linear base coefficients of the sparse grid's ansatz-functions
index	a iterator object of the grid
dim	current fixed dimension of the 'execution direction'
seql	left grid point index of the current region regarded in this step of the recursion
seqr	right grid point index of the current region regarded in this step of the recursion

References _neighborStencil, _surplusStencil, _weightStencil, python.statsfileInfo::f, sgpp::base::HashGridIterator::hint(), sgpp::base::HashGridStorage::isInvalidSequenceNumber(), sgpp::base::HashGridIterator::leftChild(), sgpp::base::HashGridIterator::seq(), sgpp::base::HashGridIterator::stepRight(), storage, and sgpp::base::HashGridIterator::up().

Referenced by operator()().

Member Data Documentation

_neighborStencil

OperationStencilHierarchisation::IndexStencil& sgpp::base::StencilHierarchisationLinear::_neighborStencil

protected

Referenced by rec().

_surplusStencil

OperationStencilHierarchisation::IndexStencil& sgpp::base::StencilHierarchisationLinear::_surplusStencil

protected

Referenced by rec().

_weightStencil

OperationStencilHierarchisation::WeightStencil& sgpp::base::StencilHierarchisationLinear::_weightStencil

protected

Referenced by rec().

storage

GridStorage& sgpp::base::StencilHierarchisationLinear::storage

protected

the grid object

Referenced by rec().

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

• base/src/sgpp/base/operation/hash/common/algorithm_sweep/StencilHierarchisationLinear.hpp
• base/src/sgpp/base/operation/hash/common/algorithm_sweep/StencilHierarchisationLinear.cpp