A sparse direct supernodal Cholesky (LLT) factorization and solver based on the PaStiX library. More...

#include <PaStiXSupport.h>

Inheritance diagram for Eigen::PastixLDLT< _MatrixType, _UpLo >:

Public Types
enum	{ UpLo = _UpLo }

typedef PastixBase< PastixLDLT< MatrixType, _UpLo > >	Base

typedef Base::ColSpMatrix	ColSpMatrix

typedef _MatrixType	MatrixType

Public Types inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > >
typedef internal::pastix_traits< PastixLDLT< _MatrixType, _UpLo > >::MatrixType	_MatrixType

typedef SparseMatrix< Scalar, ColMajor >	ColSpMatrix

typedef MatrixType::Index	Index

typedef _MatrixType	MatrixType

typedef MatrixType::RealScalar	RealScalar

typedef MatrixType::Scalar	Scalar

typedef Matrix< Scalar, Dynamic, 1 >	Vector

Public Member Functions
void	analyzePattern (const MatrixType &matrix)

void	compute (const MatrixType &matrix)

void	factorize (const MatrixType &matrix)

	PastixLDLT ()

	PastixLDLT (const MatrixType &matrix)

Public Member Functions inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > >
bool	_solve (const MatrixBase< Rhs > &b, MatrixBase< Dest > &x) const

Index	cols () const

PastixLDLT< _MatrixType, _UpLo > &	derived ()

const PastixLDLT< _MatrixType, _UpLo > &	derived () const

Array< RealScalar, IPARM_SIZE, 1 > &	dparm ()

double &	dparm (int idxparam)

ComputationInfo	info () const
	Reports whether previous computation was successful. More...

Array< Index, IPARM_SIZE, 1 > &	iparm ()

int &	iparm (int idxparam)

	PastixBase ()

Index	rows () const

const internal::solve_retval< PastixBase, Rhs >	solve (const MatrixBase< Rhs > &b) const

const internal::sparse_solve_retval< PastixBase, Rhs >	solve (const SparseMatrixBase< Rhs > &b) const

	~PastixBase ()

Protected Member Functions
void	grabMatrix (const MatrixType &matrix, ColSpMatrix &out)

void	init ()

Protected Member Functions inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > >
void	analyzePattern (ColSpMatrix &mat)

void	clean ()

void	compute (ColSpMatrix &mat)

void	factorize (ColSpMatrix &mat)

void	init ()

Additional Inherited Members
Protected Attributes inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > >
int	m_analysisIsOk

int	m_comm

Matrix< double, DPARM_SIZE, 1 >	m_dparm

int	m_factorizationIsOk

ComputationInfo	m_info

int	m_initisOk

Matrix< Index, Dynamic, 1 >	m_invp

Matrix< int, IPARM_SIZE, 1 >	m_iparm

bool	m_isInitialized

pastix_data_t *	m_pastixdata

Matrix< Index, Dynamic, 1 >	m_perm

int	m_size

Detailed Description

template<typename _MatrixType, int _UpLo>
class Eigen::PastixLDLT< _MatrixType, _UpLo >

A sparse direct supernodal Cholesky (LLT) factorization and solver based on the PaStiX library.

This class is used to solve the linear systems A.X = B via a LDL^T supernodal Cholesky factorization available in the PaStiX library. The matrix A should be symmetric and positive definite WARNING Selfadjoint complex matrices are not supported in the current version of PaStiX The vectors or matrices X and B can be either dense or sparse

Template Parameters

MatrixType	the type of the sparse matrix A, it must be a SparseMatrix<>
UpLo	The part of the matrix to use : Lower or Upper. The default is Lower as required by PaStiX

See also: TutorialSparseDirectSolvers

Definition at line 25 of file PaStiXSupport.h.