Base class of sparse matrices. More...

#include <spm.h>

Inheritance diagram for gridripper::math::SpM< TD >:

Public Member Functions
int	getNumRows () const
	Gets the number of rows.
int	getNumColumns () const
	Gets the number of columns.
virtual int	countNonzerosInRow (int row) const =0
	Gets the number of nonzeros in the specified row.
virtual void	gmv (TD y, TD alpha, const TD x, TD beta, const TD *b) const =0
	General matrix-vector operation.
virtual void	toDenseMatrix (TD *mat) const =0
	Converts the sparse matrix to a dense matrix.
Protected Member Functions
	SpM (int nrows, int ncols)
	Creates a sparse matrix with the specified number of rows.
void	resize (int nrows, int ncols)

Detailed Description

template<class TD>
class gridripper::math::SpM< TD >

Base class of sparse matrices.

Version:: 07/03/2009

Since:: 06/30/2009

Author:: Peter Csizmadia

Constructor & Destructor Documentation

template<class TD >

gridripper::math::SpM< TD >::SpM	(	int	nrows,
		int	ncols
	)			`[inline, protected]`

Creates a sparse matrix with the specified number of rows.

Parameters:

	nrows	the number of rows
	ncols	the number of columns

Member Function Documentation

template<class TD >

virtual int gridripper::math::SpM< TD >::countNonzerosInRow ( int row ) const [pure virtual]

Gets the number of nonzeros in the specified row.

Parameters:

row

the row index

Returns:: the number of nonzeros

Implemented in gridripper::math::DiaSpM< TD, TI >, gridripper::math::EllSpM< TD, TI >, gridripper::math::CooSpM< TD, TI >, and gridripper::math::CsrSpM< TD, TI >.

template<class TD >

int gridripper::math::SpM< TD >::getNumColumns ( ) const [inline]

Gets the number of columns.

Returns:: the number of columns

template<class TD >

int gridripper::math::SpM< TD >::getNumRows ( ) const [inline]

Gets the number of rows.

Returns:: the number of rows

template<class TD >

virtual void gridripper::math::SpM< TD >::gmv	(	TD *	y,
		TD	alpha,
		const TD *	x,
		TD	beta,
		const TD *	b
	)			const `[pure virtual]`

General matrix-vector operation.

Computes y = alpha*A*x + beta*b.

Parameters:

	y	the output vector
	alpha	scalar multiplier applied to A
	x	the x vector
	beta	scalar multiplier applied to b
	b	the b vector or NULL

Implemented in gridripper::math::DiaSpM< TD, TI >, gridripper::math::EllSpM< TD, TI >, gridripper::math::CooSpM< TD, TI >, and gridripper::math::CsrSpM< TD, TI >.

template<class TD >

virtual void gridripper::math::SpM< TD >::toDenseMatrix ( TD * mat ) const [pure virtual]

Converts the sparse matrix to a dense matrix.

Parameters:

mat

output array for the dense matrix

Implemented in gridripper::math::DiaSpM< TD, TI >, gridripper::math::EllSpM< TD, TI >, gridripper::math::CooSpM< TD, TI >, and gridripper::math::CsrSpM< TD, TI >.

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

/home/laszloa/SVN/GR/gridripper/include/gridripper/math/spm.h

gridripper::math::SpM< TD > Class Template Reference

Public Member Functions

Protected Member Functions

Detailed Description

template<class TD> class gridripper::math::SpM< TD >

Constructor & Destructor Documentation

Member Function Documentation

template<class TD>
class gridripper::math::SpM< TD >