Iteration strategy that traverses cells and their face stencils. More...

#include <meshIterationStrategies.hpp>

Inheritance diagram for NeoN::la::CellBasedIterator:

Classes
struct	CellBasedData
	Pre-computed connectivity required for cell-based assembly. More...

Public Member Functions
	CellBasedIterator ()

std::string	name () const override
	Returns the strategy name.

size_t	size () const override
	Returns the number of iteration elements (cells or faces).

	~CellBasedIterator () override

std::shared_ptr< CellBasedData >	getCellBasedData ()
	Returns the pre-computed connectivity data, or nullptr if not yet initialised.

template<typename SparsityType >
void	setComputeCellBasedData (const UnstructuredMesh &mesh, std::shared_ptr< const SparsityType > sparsityPattern, std::shared_ptr< const la::FaceToMatrixAddress > faceToMatrixAddress)
	Computes and stores the cell-based connectivity data.

template<typename SparsityType >
std::shared_ptr< CellBasedData >	computeCellBasedData (const UnstructuredMesh &mesh, std::shared_ptr< const SparsityType > sparsityPattern, const std::shared_ptr< const la::FaceToMatrixAddress > faceToMatrixAddress)
	Builds and returns cell-based connectivity data without storing it.

Public Member Functions inherited from NeoN::la::MeshIterationStrategy
virtual	~MeshIterationStrategy ()

Public Attributes
std::shared_ptr< CellBasedData >	cellBasedIteratorData_

Detailed Description

Iteration strategy that traverses cells and their face stencils.

Pre-computes a cell-centric connectivity table (CellBasedData) so that each cell can independently gather all face contributions during assembly, which is better suited for GPU-parallel execution than the face-based approach.

Definition at line 89 of file meshIterationStrategies.hpp.

Constructor & Destructor Documentation

◆ CellBasedIterator()

NeoN::la::CellBasedIterator::CellBasedIterator ( )

◆ ~CellBasedIterator()

NeoN::la::CellBasedIterator::~CellBasedIterator ( )

inlineoverride

Definition at line 160 of file meshIterationStrategies.hpp.

Member Function Documentation

◆ computeCellBasedData()

template<typename SparsityType >

std::shared_ptr< CellBasedData > NeoN::la::CellBasedIterator::computeCellBasedData	(	const UnstructuredMesh &	mesh,
		std::shared_ptr< const SparsityType >	sparsityPattern,
		const std::shared_ptr< const la::FaceToMatrixAddress >	faceToMatrixAddress
	)

Builds and returns cell-based connectivity data without storing it.

Launches a parallel kernel that, for every cell, iterates over its face stencil and records the neighbour cell, the face sign, and the matrix column index for each face.

Template Parameters

SparsityType Sparsity pattern type (e.g. CsrSparsityPattern, CooSparsityPattern).

Parameters

mesh	The mesh providing owner/neighbour topology.
sparsityPattern	Sparsity pattern of the linear system.
faceToMatrixAddress	Mapping from faces to matrix row offsets.

Returns: Shared pointer to the newly allocated CellBasedData.

◆ getCellBasedData()

std::shared_ptr< CellBasedData > NeoN::la::CellBasedIterator::getCellBasedData ( )

Returns the pre-computed connectivity data, or nullptr if not yet initialised.

◆ name()

std::string NeoN::la::CellBasedIterator::name ( ) const

overridevirtual

Returns the strategy name.

Implements NeoN::la::MeshIterationStrategy.

◆ setComputeCellBasedData()

template<typename SparsityType >

void NeoN::la::CellBasedIterator::setComputeCellBasedData	(	const UnstructuredMesh &	mesh,
		std::shared_ptr< const SparsityType >	sparsityPattern,
		std::shared_ptr< const la::FaceToMatrixAddress >	faceToMatrixAddress
	)

Computes and stores the cell-based connectivity data.

Template Parameters

SparsityType Sparsity pattern type (e.g. CsrSparsityPattern, CooSparsityPattern).

Parameters

mesh	The mesh providing owner/neighbour topology.
sparsityPattern	Sparsity pattern of the linear system.
faceToMatrixAddress	Mapping from faces to matrix row offsets.

◆ size()

size_t NeoN::la::CellBasedIterator::size ( ) const

overridevirtual

Returns the number of iteration elements (cells or faces).

Implements NeoN::la::MeshIterationStrategy.

Member Data Documentation

◆ cellBasedIteratorData_

std::shared_ptr<CellBasedData> NeoN::la::CellBasedIterator::cellBasedIteratorData_

Definition at line 200 of file meshIterationStrategies.hpp.

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

/home/runner/work/NeoN/NeoN/include/NeoN/linearAlgebra/meshIterationStrategies.hpp

Classes

Public Member Functions

Public Attributes