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 ()
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

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 46 of file MatrixMarketIterator.h.

template<typename Scalar >

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

Definition at line 45 of file MatrixMarketIterator.h.

Constructor & Destructor Documentation

template<typename Scalar >

Eigen::MatrixMarketIterator< Scalar >::MatrixMarketIterator ( const std::string folder ) [inline]

Definition at line 49 of file MatrixMarketIterator.h.

template<typename Scalar >

Eigen::MatrixMarketIterator< Scalar >::~MatrixMarketIterator ( ) [inline]

Definition at line 60 of file MatrixMarketIterator.h.

Member Function Documentation

template<typename Scalar >

bool Eigen::MatrixMarketIterator< Scalar >::Fileexists ( std::string file ) [inline, protected]

Definition at line 158 of file MatrixMarketIterator.h.

template<typename Scalar >

void Eigen::MatrixMarketIterator< Scalar >::Getnextvalidmatrix ( ) [inline, protected]

Definition at line 172 of file MatrixMarketIterator.h.

template<typename Scalar >

bool Eigen::MatrixMarketIterator< Scalar >::hasrefX ( ) [inline]

Definition at line 154 of file MatrixMarketIterator.h.

template<typename Scalar >

bool Eigen::MatrixMarketIterator< Scalar >::hasRhs ( ) [inline]

Definition at line 153 of file MatrixMarketIterator.h.

template<typename Scalar >

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

Definition at line 149 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 76 of file MatrixMarketIterator.h.

template<typename Scalar >

Eigen::MatrixMarketIterator< Scalar >::operator bool ( ) const [inline]

Definition at line 73 of file MatrixMarketIterator.h.

template<typename Scalar >

MatrixMarketIterator& Eigen::MatrixMarketIterator< Scalar >::operator++ ( ) [inline]

Definition at line 65 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 133 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 101 of file MatrixMarketIterator.h.

template<typename Scalar >

int Eigen::MatrixMarketIterator< Scalar >::sym ( ) [inline]

Definition at line 151 of file MatrixMarketIterator.h.