#include <MatrixCache.hpp>

Inheritance diagram for polyfem::utils::SparseMatrixCache:

Collaboration diagram for polyfem::utils::SparseMatrixCache:

Public Member Functions
	SparseMatrixCache ()

	SparseMatrixCache (const size_t size)

	SparseMatrixCache (const size_t rows, const size_t cols)

	SparseMatrixCache (const MatrixCache &other)

	SparseMatrixCache (const SparseMatrixCache &other, const bool copy_main_cache_ptr=false)

std::unique_ptr< MatrixCache >	copy () const override

void	init (const size_t size) override
	set matrix to be size x size

void	init (const size_t rows, const size_t cols) override
	set matrix to be rows x cols

void	init (const MatrixCache &other) override
	set matrix to be a matrix of all zeros with same size as other

void	init (const SparseMatrixCache &other, const bool copy_main_cache_ptr=false)
	set matrix to be a matrix of all zeros with same size as other (potentially with the same main cache)

void	set_zero () override
	set matrix values to zero modifies tmp_, mat_, and values (setting all to zero)

void	reserve (const size_t size) override

size_t	entries_size () const override

size_t	capacity () const override

size_t	non_zeros () const override

size_t	triplet_count () const override

bool	is_sparse () const override

size_t	mapping_size () const

void	add_value (const int e, const int i, const int j, const double value) override
	e = element_index, i = global row_index, j = global column_index, value = value to add to matrix if the cache is yet to be constructed, save the row, column, and value to be added to the second cache in this case, modifies_ entries_ and second_cache_entries_ otherwise, save the value directly in the second cache in this case, modfies values_

StiffnessMatrix	get_matrix (const bool compute_mapping=true) override
	if the cache is yet to be constructed, save the cached (ordered) indices in inner_index_ and outer_index_ then fill in map and second_cache_ in this case, modifies inner_index_, outer_index_, map, and second_cache_ to reflect the matrix structure also empties second_cache_entries and sets values_ to zero otherwise, update mat_ directly using the cached indices and values_ in this case, modifies mat_ and sets values_ to zero

void	prune () override
	if caches have yet to be constructed, add the saved triplets to mat_ modifies tmp_ and mat_, also sets entries_ to be empty after writing its values to mat_

std::shared_ptr< MatrixCache >	operator+ (const MatrixCache &a) const override

std::shared_ptr< MatrixCache >	operator+ (const SparseMatrixCache &a) const

void	operator+= (const MatrixCache &o) override

void	operator+= (const SparseMatrixCache &o)

const StiffnessMatrix &	mat () const

const std::vector< Eigen::Triplet< double > > &	entries () const

Public Member Functions inherited from polyfem::utils::MatrixCache
	MatrixCache ()

virtual	~MatrixCache ()=default

bool	is_dense () const

Private Member Functions
const SparseMatrixCache *	main_cache () const

const std::vector< std::vector< std::pair< int, size_t > > > &	mapping () const

const std::vector< std::vector< int > > &	second_cache () const

Private Attributes
size_t	size_

StiffnessMatrix	tmp_

StiffnessMatrix	mat_

std::vector< Eigen::Triplet< double > >	entries_
	contains global matrix indices and corresponding value

std::vector< std::vector< std::pair< int, size_t > > >	mapping_
	maps row indices to column index/local index pairs

std::vector< int >	inner_index_

std::vector< int >	outer_index_
	saves inner/outer indices for sparse matrix

std::vector< double >	values_
	buffer for values (corresponds to inner/outer_index_ structure for sparse matrix)

const SparseMatrixCache *	main_cache_ = nullptr

std::vector< std::vector< int > >	second_cache_
	maps element index to local index

std::vector< std::vector< std::pair< int, int > > >	second_cache_entries_
	maps element indices to global matrix indices

int	current_e_ = -1

int	current_e_index_ = -1

Detailed Description

Definition at line 43 of file MatrixCache.hpp.

Constructor & Destructor Documentation

◆ SparseMatrixCache() [1/5]

polyfem::utils::SparseMatrixCache::SparseMatrixCache ( )

inline

Definition at line 47 of file MatrixCache.hpp.

◆ SparseMatrixCache() [2/5]

polyfem::utils::SparseMatrixCache::SparseMatrixCache ( const size_t size )

Definition at line 8 of file MatrixCache.cpp.

References init().

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◆ SparseMatrixCache() [3/5]

polyfem::utils::SparseMatrixCache::SparseMatrixCache	(	const size_t	rows,
		const size_t	cols
	)

Definition at line 13 of file MatrixCache.cpp.

References init().

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◆ SparseMatrixCache() [4/5]

polyfem::utils::SparseMatrixCache::SparseMatrixCache ( const MatrixCache & other )

Definition at line 18 of file MatrixCache.cpp.

References init().

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◆ SparseMatrixCache() [5/5]

polyfem::utils::SparseMatrixCache::SparseMatrixCache	(	const SparseMatrixCache &	other,
		const bool	copy_main_cache_ptr = `false`
	)

Definition at line 23 of file MatrixCache.cpp.

References init().

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Member Function Documentation

◆ add_value()

void polyfem::utils::SparseMatrixCache::add_value	(	const int	e,
		const int	i,
		const int	j,
		const double	value
	)

overridevirtual

e = element_index, i = global row_index, j = global column_index, value = value to add to matrix if the cache is yet to be constructed, save the row, column, and value to be added to the second cache in this case, modifies_ entries_ and second_cache_entries_ otherwise, save the value directly in the second cache in this case, modfies values_

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SparseMatrixCache() [1/5]

◆ SparseMatrixCache() [2/5]

◆ SparseMatrixCache() [3/5]

◆ SparseMatrixCache() [4/5]

◆ SparseMatrixCache() [5/5]

Member Function Documentation

◆ add_value()

◆ capacity()

◆ copy()

◆ entries()

◆ entries_size()

◆ get_matrix()

◆ init() [1/4]

◆ init() [2/4]

◆ init() [3/4]

◆ init() [4/4]

◆ is_sparse()

◆ main_cache()

◆ mapping()

◆ mapping_size()

◆ mat()

◆ non_zeros()

◆ operator+() [1/2]

◆ operator+() [2/2]

◆ operator+=() [1/2]

◆ operator+=() [2/2]

◆ prune()

◆ reserve()

◆ second_cache()

◆ set_zero()

◆ triplet_count()

Member Data Documentation

◆ current_e_

◆ current_e_index_

◆ entries_

◆ inner_index_

◆ main_cache_

◆ mapping_

◆ mat_

◆ outer_index_

◆ second_cache_

◆ second_cache_entries_

◆ size_

◆ tmp_

◆ values_