Iterator to browse matrices from a specified folder. More...

#include <MatrixMarketIterator.h>

Public Types
typedef SparseMatrix< Scalar, ColMajor >	MatrixType

typedef Matrix< Scalar, Dynamic, 1 >	VectorType

Public Member Functions
bool	hasrefX ()

bool	hasRhs ()

bool	isFolderValid ()

std::string &	matname ()

MatrixType &	matrix ()

	MatrixMarketIterator (const std::string &folder)

	operator bool () const

MatrixMarketIterator &	operator++ ()

VectorType &	refX ()

VectorType &	rhs ()

int	sym ()

	~MatrixMarketIterator ()

Protected Member Functions
bool	Fileexists (std::string file)

void	Getnextvalidmatrix ()

Protected Attributes
struct dirent *	m_curs_id

std::string	m_folder

DIR *	m_folder_id

bool	m_hasrefX

bool	m_hasRhs

bool	m_isvalid

MatrixType	m_mat

bool	m_matIsLoaded

std::string	m_matname

VectorType	m_refX

VectorType	m_rhs

int	m_sym

Private Types
typedef NumTraits< Scalar >::Real	RealScalar

Detailed Description

template<typename Scalar>
class Eigen::MatrixMarketIterator< Scalar >

Iterator to browse matrices from a specified folder.

This is used to load all the matrices from a folder. The matrices should be in Matrix Market format It is assumed that the matrices are named as matname.mtx and matname_SPD.mtx if the matrix is Symmetric and positive definite (or Hermitian) The right hand side vectors are loaded as well, if they exist. They should be named as matname_b.mtx. Note that the right hand side for a SPD matrix is named as matname_SPD_b.mtx

Sometimes a reference solution is available. In this case, it should be named as matname_x.mtx

Sample code

Template Parameters

Scalar The scalar type

Definition at line 42 of file MatrixMarketIterator.h.

Member Typedef Documentation

template<typename Scalar>

typedef SparseMatrix<Scalar,ColMajor> Eigen::MatrixMarketIterator< Scalar >::MatrixType

Definition at line 47 of file MatrixMarketIterator.h.

template<typename Scalar>

typedef NumTraits<Scalar>::Real Eigen::MatrixMarketIterator< Scalar >::RealScalar

private

Definition at line 44 of file MatrixMarketIterator.h.

template<typename Scalar>

typedef Matrix<Scalar,Dynamic,1> Eigen::MatrixMarketIterator< Scalar >::VectorType

Definition at line 46 of file MatrixMarketIterator.h.

Constructor & Destructor Documentation

template<typename Scalar>

Eigen::MatrixMarketIterator< Scalar >::MatrixMarketIterator ( const std::string & folder )

inline

Definition at line 50 of file MatrixMarketIterator.h.

template<typename Scalar>

Eigen::MatrixMarketIterator< Scalar >::~MatrixMarketIterator ( )

inline

Definition at line 58 of file MatrixMarketIterator.h.

Member Function Documentation

template<typename Scalar>

bool Eigen::MatrixMarketIterator< Scalar >::Fileexists ( std::string file )

inlineprotected

Definition at line 173 of file MatrixMarketIterator.h.

template<typename Scalar>

void Eigen::MatrixMarketIterator< Scalar >::Getnextvalidmatrix ( )

inlineprotected

Definition at line 187 of file MatrixMarketIterator.h.

template<typename Scalar>

bool Eigen::MatrixMarketIterator< Scalar >::hasrefX ( )

inline

Definition at line 168 of file MatrixMarketIterator.h.

template<typename Scalar>

bool Eigen::MatrixMarketIterator< Scalar >::hasRhs ( )

inline

Definition at line 167 of file MatrixMarketIterator.h.

template<typename Scalar>

bool Eigen::MatrixMarketIterator< Scalar >::isFolderValid ( )

inline

Definition at line 169 of file MatrixMarketIterator.h.

template<typename Scalar>

std::string& Eigen::MatrixMarketIterator< Scalar >::matname ( )

inline

Definition at line 163 of file MatrixMarketIterator.h.

template<typename Scalar>

MatrixType& Eigen::MatrixMarketIterator< Scalar >::matrix ( )

inline

Return the sparse matrix corresponding to the current file

Definition at line 74 of file MatrixMarketIterator.h.

template<typename Scalar>

Eigen::MatrixMarketIterator< Scalar >::operator bool ( ) const

inline

Definition at line 71 of file MatrixMarketIterator.h.

template<typename Scalar>

MatrixMarketIterator& Eigen::MatrixMarketIterator< Scalar >::operator++ ( )

inline

Definition at line 63 of file MatrixMarketIterator.h.

template<typename Scalar>

VectorType& Eigen::MatrixMarketIterator< Scalar >::refX ( )

inline

Return a reference solution If it is not provided and if the right hand side is not available then refX is randomly generated such that A*refX = b where A and b are the matrix and the rhs. Note that when a rhs is provided, refX is not available

Definition at line 145 of file MatrixMarketIterator.h.

template<typename Scalar>

VectorType& Eigen::MatrixMarketIterator< Scalar >::rhs ( )

inline

Return the right hand side corresponding to the current matrix. If the rhs file is not provided, a random rhs is generated

Definition at line 113 of file MatrixMarketIterator.h.

template<typename Scalar>

int Eigen::MatrixMarketIterator< Scalar >::sym ( )

inline

Definition at line 165 of file MatrixMarketIterator.h.