Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ > Class Template Reference

A simplicial direct Cholesky (LDLT) factorization and solver based on Cholmod. More...

Inheritance diagram for Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >:

Public Types
typedef MatrixType_	MatrixType
Public Types inherited from Eigen::CholmodBase< MatrixType_, Lower, CholmodSimplicialLDLT< MatrixType_, Lower > >
enum
enum
typedef MatrixType	CholMatrixType
typedef MatrixType_	MatrixType
typedef MatrixType::RealScalar	RealScalar
typedef MatrixType::Scalar	Scalar
typedef MatrixType::StorageIndex	StorageIndex

Public Member Functions
	CholmodSimplicialLDLT ()
	CholmodSimplicialLDLT (const MatrixType &matrix)
	~CholmodSimplicialLDLT ()
Public Member Functions inherited from Eigen::CholmodBase< MatrixType_, Lower, CholmodSimplicialLDLT< MatrixType_, Lower > >
void	analyzePattern (const MatrixType &matrix)
cholmod_common &	cholmod ()
	CholmodBase ()
	CholmodBase (const MatrixType &matrix)
StorageIndex	cols () const
CholmodSimplicialLDLT< MatrixType_, Lower > &	compute (const MatrixType &matrix)
Scalar	determinant () const
void	dumpMemory (Stream &)
void	factorize (const MatrixType &matrix)
ComputationInfo	info () const
	Reports whether previous computation was successful. More...
Scalar	logDeterminant () const
StorageIndex	rows () const
CholmodSimplicialLDLT< MatrixType_, Lower > &	setShift (const RealScalar &offset)
	~CholmodBase ()
Public Member Functions inherited from Eigen::SparseSolverBase< Derived >
Derived &	derived ()
const Derived &	derived () const
template<typename Rhs >
const Solve< Derived, Rhs >	solve (const MatrixBase< Rhs > &b) const
template<typename Rhs >
const Solve< Derived, Rhs >	solve (const SparseMatrixBase< Rhs > &b) const
	SparseSolverBase ()
	SparseSolverBase (SparseSolverBase &&other)
	~SparseSolverBase ()

Protected Member Functions
void	init ()
Protected Member Functions inherited from Eigen::CholmodBase< MatrixType_, Lower, CholmodSimplicialLDLT< MatrixType_, Lower > >
CholmodSimplicialLDLT< MatrixType_, Lower > &	derived ()
const CholmodSimplicialLDLT< MatrixType_, Lower > &	derived () const

Private Types
typedef CholmodBase< MatrixType_, UpLo_, CholmodSimplicialLDLT >	Base

Private Attributes
cholmod_common	m_cholmod

Additional Inherited Members
Protected Types inherited from Eigen::CholmodBase< MatrixType_, Lower, CholmodSimplicialLDLT< MatrixType_, Lower > >
typedef SparseSolverBase< CholmodSimplicialLDLT< MatrixType_, Lower > >	Base
Protected Attributes inherited from Eigen::CholmodBase< MatrixType_, Lower, CholmodSimplicialLDLT< MatrixType_, Lower > >
int	m_analysisIsOk
cholmod_common	m_cholmod
cholmod_factor *	m_cholmodFactor
int	m_factorizationIsOk
ComputationInfo	m_info
bool	m_isInitialized
double	m_shiftOffset [2]
Protected Attributes inherited from Eigen::SparseSolverBase< Derived >
bool	m_isInitialized

Detailed Description

template<typename MatrixType_, int UpLo_ = Lower>
class Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >

A simplicial direct Cholesky (LDLT) factorization and solver based on Cholmod.

This class allows to solve for A.X = B sparse linear problems via a simplicial LDL^T Cholesky factorization using the Cholmod library. This simplicial variant is equivalent to Eigen's built-in SimplicialLDLT class. Therefore, it has little practical interest. The sparse matrix A must be selfadjoint and positive definite. 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 triangular part that will be used for the computations. It can be Lower or Upper. Default is Lower.

This class follows the sparse solver concept .

This class supports all kind of SparseMatrix<>: row or column major; upper, lower, or both; compressed or non compressed.

Warning

Only double precision real and complex scalar types are supported by Cholmod.

See also

Sparse solver concept, class CholmodSupernodalLLT, class SimplicialLDLT

Definition at line 530 of file CholmodSupport.h.

Member Typedef Documentation

Base

template<typename MatrixType_ , int UpLo_ = Lower>

typedef CholmodBase<MatrixType_, UpLo_, CholmodSimplicialLDLT> Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >::Base

private

Definition at line 532 of file CholmodSupport.h.

MatrixType

template<typename MatrixType_ , int UpLo_ = Lower>

typedef MatrixType_ Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >::MatrixType

Definition at line 537 of file CholmodSupport.h.

Constructor & Destructor Documentation

CholmodSimplicialLDLT() [1/2]

template<typename MatrixType_ , int UpLo_ = Lower>

Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >::CholmodSimplicialLDLT ( )

inline

Definition at line 539 of file CholmodSupport.h.

: Base() { init(); }

CholmodSimplicialLDLT() [2/2]

template<typename MatrixType_ , int UpLo_ = Lower>

Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >::CholmodSimplicialLDLT ( const MatrixType &  matrix )

inline

Definition at line 541 of file CholmodSupport.h.

                                                    : Base()
    {
      init();
      this->compute(matrix);
    }

~CholmodSimplicialLDLT()

template<typename MatrixType_ , int UpLo_ = Lower>

Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >::~CholmodSimplicialLDLT ( )

inline

Definition at line 547 of file CholmodSupport.h.

{}

Member Function Documentation

init()

template<typename MatrixType_ , int UpLo_ = Lower>

void Eigen::CholmodSimplicialLDLT< MatrixType_, UpLo_ >::init ( )

inlineprotected

Definition at line 549 of file CholmodSupport.h.

    {
      m_cholmod.final_asis = 1;
      m_cholmod.supernodal = CHOLMOD_SIMPLICIAL;
    }

Member Data Documentation

m_cholmod

template<typename MatrixType_ , int UpLo_ = Lower>

cholmod_common Eigen::CholmodBase< MatrixType_, UpLo_, Derived >::m_cholmod

mutableprivate

Definition at line 448 of file CholmodSupport.h.

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

• CholmodSupport.h