algebra::r_sparseMat Class Reference

Read-mode square sparse matrix. More...

#include <sparseMat.h>

Classes
struct	SparseVector

Public Member Functions
	r_sparseMat (const w_sparseMat &source)
	r_sparseMat (const MatrixShape &shape)
void	clear ()
void	add (int i, int j, double val)
void	print (std::ostream &flux=std::cout) const
double	operator() (const int i, const int j) const
template<typename T >
void	mult (std::vector< T > const &X, std::vector< T > &Y)
template<typename T >
void	build_diag_precond (std::vector< T > &D) const

Private Attributes
std::vector< SparseVector >	rows

Detailed Description

Read-mode square sparse matrix.

This is the main sparse matrix class, meant for efficiently computing matrix-vector products.

Constructor & Destructor Documentation

r_sparseMat() [1/2]

algebra::r_sparseMat::r_sparseMat ( const w_sparseMat &  source )

inline

Construct from a read-mode sparse matrix.

r_sparseMat() [2/2]

algebra::r_sparseMat::r_sparseMat ( const MatrixShape &  shape )

inline

Construct from a matrix shape. Initialize all stored values to zero.

Member Function Documentation

add()

void algebra::r_sparseMat::add ( int  i, int  j, double  val  )

inline

Add the provided value at position (i, j), which must belong to the shape. This method is thread-safe.

build_diag_precond()

template<typename T >

void algebra::r_sparseMat::build_diag_precond ( std::vector< T > &  D ) const

inline

Build a diagonal preconditioner D from this matrix.

clear()

void algebra::r_sparseMat::clear ( )

inline

Zero-out all elements, while preserving the shape.

mult()

template<typename T >

void algebra::r_sparseMat::mult ( std::vector< T > const &  X, std::vector< T > &  Y  )

inline

Y = this*X

operator()()

double algebra::r_sparseMat::operator() ( const int  i, const int  j  ) const

inline

Return the value at position (i, j).

print()

void algebra::r_sparseMat::print ( std::ostream &  flux = std::cout ) const

inline

Print to the provided stream.

Member Data Documentation

rows

std::vector<SparseVector> algebra::r_sparseMat::rows

private

Container for the matrix rows. Since SparseVector is not movable, this container cannot be resized.

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

• algebra/sparseMat.h