SparseMatrix Class Reference

Sparse matrix structure optimized for XC data access pattern. More...

#include <sparse_matrix.h>

List of all members.

Public Member Functions
	SparseMatrix (const SparsePattern &pattern_)
	Constructs a square matrix and preallocate according to the specified pattern.
	SparseMatrix (const SparsePattern &pattern_, const symmMatrix &m, const int *aoMap, std::vector< int > const &permutationHML)
	~SparseMatrix ()
void	print (const char *title) const
void	addSymmetrizedTo (symmMatrix &sMat, const int *aoMap, std::vector< int > const &permutationHML) const
	Assigns itself to a given hierarchic matrix.
void	add (int row, int col, ergo_real val)
	Adds given value to an element in given row and column.
ergo_real	at (int row, int col) const
Private Member Functions
void	createOffsets (const SparsePattern &pattern)
	Fills in offsets and his based on pattern.
Private Attributes
const SparsePattern &	pattern
ergo_real **	columns
int **	offsets
	for accelerated at() and add() methods.
int **	his
	for accelerated at() and add() methods.
int *	cnt
	for accelerated at() and add() methods.
int	n
Classes
class	Exception

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Detailed Description

Sparse matrix structure optimized for XC data access pattern.

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Constructor & Destructor Documentation

SparseMatrix::SparseMatrix

(

const SparsePattern &

pattern_

)

[explicit]

Constructs a square matrix and preallocate according to the specified pattern.

SparseMatrix::SparseMatrix	(	const SparsePattern &	pattern_,
		const symmMatrix &	m,
		const int *	aoMap,
		std::vector< int > const &	permutationHML
	)

SparseMatrix::~SparseMatrix

(

)

[inline]

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Member Function Documentation

void SparseMatrix::add	(	int	row,
		int	col,
		ergo_real	val
	)			[inline]

Adds given value to an element in given row and column.

Checking against intervals.end() is *terribly* expensive!!! Luckily, we do not have to do it.

void SparseMatrix::addSymmetrizedTo	(	symmMatrix &	sMat,
		const int *	aoMap,
		std::vector< int > const &	permutationHML
	)			const

Assigns itself to a given hierarchic matrix.

ergo_real SparseMatrix::at	(	int	row,
		int	col
	)			const [inline]

void SparseMatrix::createOffsets

(

const SparsePattern &

pattern

)

[private]

Fills in offsets and his based on pattern.

void SparseMatrix::print

(

const char *

title

)

const

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Member Data Documentation

int* SparseMatrix::cnt [private]

for accelerated at() and add() methods.

ergo_real** SparseMatrix::columns [private]

int** SparseMatrix::his [private]

for accelerated at() and add() methods.

int SparseMatrix::n [private]

int** SparseMatrix::offsets [private]

for accelerated at() and add() methods.

const SparsePattern& SparseMatrix::pattern [private]

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

• source/dft/sparse_matrix.h
• source/dft/sparse_matrix.cc

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