ILU / ILU(beta) preconditioner. More...

#include <ilu.h>

Inheritance diagram for ug::ILU< TAlgebra >:

Public Types
typedef TAlgebra	algebra_type
	Algebra type. More...

typedef IPreconditioner< TAlgebra >	base_type
	Base type. More...

typedef IPreconditioner< TAlgebra >::matrix_operator_type	matrix_operator_type
	Matrix Operator type. More...

typedef TAlgebra::matrix_type	matrix_type
	Matrix type. More...

typedef IOrderingAlgorithm< TAlgebra, ordering_container_type >	ordering_algo_type

typedef std::vector< size_t >	ordering_container_type
	Ordering type. More...

typedef TAlgebra::vector_type	vector_type
	Vector type. More...

Public Types inherited from ug::IPreconditioner< TAlgebra >
typedef TAlgebra	algebra_type
	Algebra type. More...

typedef MatrixOperator< matrix_type, vector_type >	matrix_operator_type
	Matrix Operator type. More...

typedef TAlgebra::matrix_type	matrix_type
	Matrix type. More...

typedef TAlgebra::vector_type	vector_type
	Vector type. More...

Public Types inherited from ug::ILinearIterator< TAlgebra::vector_type >
typedef TAlgebra::vector_type	codomain_function_type
	Range space. More...

typedef TAlgebra::vector_type	domain_function_type
	Domain space. More...

Public Types inherited from ug::DebugWritingObject< TAlgebra >
typedef TAlgebra	algebra_type
	type of algebra More...

typedef TAlgebra::matrix_type	matrix_type
	type of matrix More...

typedef TAlgebra::vector_type	vector_type
	type of vector More...

Public Types inherited from ug::VectorDebugWritingObject< TAlgebra::vector_type >
typedef TAlgebra::vector_type	vector_type
	type of vector More...

Public Member Functions
virtual SmartPtr< ILinearIterator< vector_type > >	clone ()
	Clone. More...

void	enable_consistent_interfaces (bool enable)
	enables consistent interfaces. More...

void	enable_overlap (bool enable)

	ILU (const ILU< TAlgebra > &parent)
	clone constructor More...

	ILU (double beta=0.0)

void	set_beta (double beta)
	set factor for \( ILU_{\beta} \) More...

void	set_disable_preprocessing (bool bDisable)
	disable preprocessing (if underlying matrix has not changed) More...

void	set_inversion_eps (number eps)
	sets the smallest allowed value for the Aii/Bi quotient More...

void	set_ordering_algorithm (SmartPtr< ordering_algo_type > ordering_algo)
	sets an ordering algorithm More...

void	set_sort (bool b)
	set cuthill-mckee sort on/off More...

void	set_sort_eps (number eps)
	sets the smallest allowed value for sorted factorization More...

virtual bool	supports_parallel () const
	returns if parallel solving is supported More...

virtual	~ILU ()
	Destructor. More...

Public Member Functions inherited from ug::IPreconditioner< TAlgebra >
virtual bool	apply (vector_type &c, const vector_type &d)
	compute new correction c = B*d More...

virtual bool	apply_update_defect (vector_type &c, vector_type &d)
	compute new correction c = Bd and update defect d:= d - Lc More...

SmartPtr< MatrixOperator< matrix_type, vector_type > >	approx_operator ()
	underlying matrix based operator used for the preconditioner More...

SmartPtr< MatrixOperator< matrix_type, vector_type > >	defect_operator ()
	underlying matrix based operator for calculation of defect More...

bool	init (SmartPtr< ILinearOperator< vector_type > > L)
	implements the ILinearIterator-interface for matrix based preconditioner More...

bool	init (SmartPtr< MatrixOperator< matrix_type, vector_type > > Op)
	initializes the preconditioner for a matrix based operator More...

	IPreconditioner ()
	default constructor More...

	IPreconditioner (const IPreconditioner< TAlgebra > &parent)
	clone constructor More...

	IPreconditioner (SmartPtr< IDebugWriter< algebra_type > > spDebugWriter)
	constructor setting debug writer More...

virtual void	set_approximation (SmartPtr< MatrixOperator< matrix_type, vector_type > > approx)

virtual	~IPreconditioner ()
	virtual destructor More...

Public Member Functions inherited from ug::ILinearIterator< TAlgebra::vector_type >
virtual std::string	config_string () const

SmartPtr< IDamping< TAlgebra::vector_type, TAlgebra::vector_type > >	damping ()
	returns the scaling More...

	ILinearIterator ()
	constructor More...

	ILinearIterator (const ILinearIterator< TAlgebra::vector_type, TAlgebra::vector_type > &parent)
	copy constructor More...

virtual bool	init (SmartPtr< ILinearOperator< TAlgebra::vector_type, TAlgebra::vector_type > > J, const TAlgebra::vector_type &u)=0
	initialize for operator J(u) and linearization point u More...

virtual bool	init (SmartPtr< ILinearOperator< TAlgebra::vector_type, TAlgebra::vector_type > > L)=0
	initialize for linear operator L More...

void	set_damp (number factor)
	sets the damping to a constant factor More...

void	set_damp (SmartPtr< IDamping< TAlgebra::vector_type, TAlgebra::vector_type > > spScaling)
	sets a scaling for the correction More...

virtual	~ILinearIterator ()
	virtual destructor More...

Public Member Functions inherited from ug::DebugWritingObject< TAlgebra >
SmartPtr< IDebugWriter< algebra_type > >	debug_writer ()
	returns the debug writer More...

ConstSmartPtr< IDebugWriter< algebra_type > >	debug_writer () const

bool	debug_writer_valid () const
	returns true if the debug writer is set More...

	DebugWritingObject ()

	DebugWritingObject (const DebugWritingObject< algebra_type > &parent)
	clone constructor More...

	DebugWritingObject (SmartPtr< IDebugWriter< algebra_type > > spDebugWriter)

virtual void	set_debug (SmartPtr< IDebugWriter< algebra_type > > spDebugWriter)
	set debug writer More...

virtual	~DebugWritingObject ()
	virtual destructor More...

Public Member Functions inherited from ug::VectorDebugWritingObject< TAlgebra::vector_type >
virtual void	set_debug (SmartPtr< IVectorDebugWriter< vector_type > > spDebugWriter)
	set debug writer More...

SmartPtr< IVectorDebugWriter< vector_type > >	vector_debug_writer ()
	returns the debug writer More...

ConstSmartPtr< IVectorDebugWriter< vector_type > >	vector_debug_writer () const

bool	vector_debug_writer_valid () const
	returns true if the debug writer is set More...

	VectorDebugWritingObject ()

	VectorDebugWritingObject (SmartPtr< IVectorDebugWriter< vector_type > > spDebugWriter)

void	write_debug (const vector_type &vec, const char *filename)
	writing debug output for a vector (if debug writer set) More...

virtual	~VectorDebugWritingObject ()
	virtual destructor More...

Protected Member Functions
void	apply_ordering ()

void	applyLU (vector_type &c, const vector_type &d, vector_type &tmp)

virtual bool	init (SmartPtr< ILinearOperator< vector_type > > J, const vector_type &u)
	implements the ILinearIterator-interface for matrix based preconditioner More...

bool	init (SmartPtr< ILinearOperator< vector_type > > L)

bool	init (SmartPtr< MatrixOperator< matrix_type, vector_type > > Op)

virtual const char *	name () const
	returns the name of iterator More...

virtual bool	postprocess ()
	Postprocess routine. More...

virtual bool	preprocess (SmartPtr< MatrixOperator< matrix_type, vector_type > > pOp)
	initializes the preconditioner More...

virtual bool	step (SmartPtr< MatrixOperator< matrix_type, vector_type > > pOp, vector_type &c, const vector_type &d)
	computes a new correction c = B*d More...

Protected Member Functions inherited from ug::DebugWritingObject< TAlgebra >
void	enter_debug_writer_section (const char *secDir)
	enters a debugging section More...

void	enter_debug_writer_section (std::string secDir)
	enters a debugging section More...

void	leave_debug_writer_section ()
	leaves a debugging section More...

void	write_debug (const matrix_type &mat, const char *filename)
	write debug output for a matrix (if debug writer set) More...

void	write_debug (const matrix_type &mat, std::string name)
	write debug output for a matrix (if debug writer set) More...

Protected Member Functions inherited from ug::VectorDebugWritingObject< TAlgebra::vector_type >
void	enter_vector_debug_writer_section (const char *secDir)
	enters a debugging section More...

void	enter_vector_debug_writer_section (std::string secDir)
	enters a debugging section More...

void	leave_vector_debug_writer_section ()
	leaves a debugging section More...

void	print_debugger_message (const char *msg)
	prints a debugger message (listing all the sections) More...

void	print_debugger_message (std::string msg)
	prints a debugger message (listing all the sections) More...

virtual void	write_debug (const vector_type &vec, std::string name)
	writing debug output for a vector (if debug writer set) More...

Protected Attributes
bool	m_bDisablePreprocessing
	whether or not to disable preprocessing More...

number	m_beta
	factor for ILU-beta More...

bool	m_bSortIsIdentity

vector_type	m_h
	help vector More...

matrix_type	m_ILU
	storage for factorization More...

number	m_invEps
	smallest allowed value for the Aii/Bi quotient More...

std::vector< size_t >	m_newIndex

vector_type	m_oC

vector_type	m_oD
	for overlaps only More...

ordering_container_type	m_old_ordering

std::vector< size_t >	m_oldIndex

ordering_container_type	m_ordering

SmartPtr< OverlapWriter< TAlgebra > >	m_overlapWriter

number	m_sortEps
	smallest allowed value for sorted factorization More...

SmartPtr< ordering_algo_type >	m_spOrderingAlgo
	for ordering algorithms More...

const vector_type *	m_u

bool	m_useConsistentInterfaces

bool	m_useOverlap

Protected Attributes inherited from ug::IPreconditioner< TAlgebra >
bool	m_bInit
	init flag indicating if init has been called More...

bool	m_bOtherApproxOperator

SmartPtr< MatrixOperator< matrix_type, vector_type > >	m_spApproxOperator
	underlying matrix based operator used for the preconditioner More...

SmartPtr< ILinearOperator< vector_type > >	m_spDefectOperator
	underlying matrix based operator for calculation of defect More...

Protected Attributes inherited from ug::ILinearIterator< TAlgebra::vector_type >
SmartPtr< IDamping< TAlgebra::vector_type, TAlgebra::vector_type > >	m_spDamping
	the scaling More...

Protected Attributes inherited from ug::DebugWritingObject< TAlgebra >
SmartPtr< IDebugWriter< algebra_type > >	m_spDebugWriter
	Debug Writer. More...

Protected Attributes inherited from ug::VectorDebugWritingObject< TAlgebra::vector_type >
SmartPtr< IVectorDebugWriter< vector_type > >	m_spVectorDebugWriter
	Debug Writer. More...

Private Member Functions
template<class T >
void	write_overlap_debug (const T &t, std::string name)

Detailed Description

template<typename TAlgebra>
class ug::ILU< TAlgebra >

ILU / ILU(beta) preconditioner.

Member Typedef Documentation

◆ algebra_type

template<typename TAlgebra >

typedef TAlgebra ug::ILU< TAlgebra >::algebra_type

Algebra type.

◆ base_type

template<typename TAlgebra >

typedef IPreconditioner<TAlgebra> ug::ILU< TAlgebra >::base_type

Base type.

◆ matrix_operator_type

template<typename TAlgebra >

typedef IPreconditioner<TAlgebra>::matrix_operator_type ug::ILU< TAlgebra >::matrix_operator_type

Matrix Operator type.

◆ matrix_type

template<typename TAlgebra >

typedef TAlgebra::matrix_type ug::ILU< TAlgebra >::matrix_type

Matrix type.

◆ ordering_algo_type

template<typename TAlgebra >

typedef IOrderingAlgorithm<TAlgebra, ordering_container_type> ug::ILU< TAlgebra >::ordering_algo_type

◆ ordering_container_type

template<typename TAlgebra >

typedef std::vector<size_t> ug::ILU< TAlgebra >::ordering_container_type

Ordering type.

◆ vector_type

template<typename TAlgebra >

typedef TAlgebra::vector_type ug::ILU< TAlgebra >::vector_type

Vector type.

Constructor & Destructor Documentation

◆ ILU() [1/2]

template<typename TAlgebra >

ug::ILU< TAlgebra >::ILU ( double beta = 0.0 )

inline

◆ ILU() [2/2]

template<typename TAlgebra >

ug::ILU< TAlgebra >::ILU ( const ILU< TAlgebra > & parent )

inline

clone constructor

◆ ~ILU()

template<typename TAlgebra >

virtual ug::ILU< TAlgebra >::~ILU ( )

inlinevirtual

Destructor.

Member Function Documentation

◆ apply_ordering()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::apply_ordering ( )

inlineprotected

References ug::get_clock_s(), ug::GetInversePermutation(), ug::ILU< TAlgebra >::m_bSortIsIdentity, ug::ILU< TAlgebra >::m_ILU, ug::ILU< TAlgebra >::m_old_ordering, ug::ILU< TAlgebra >::m_ordering, ug::ILU< TAlgebra >::m_spOrderingAlgo, ug::ILU< TAlgebra >::m_u, ug::ILU< TAlgebra >::m_useOverlap, ug::SetMatrixAsPermutation(), UG_LOG, and UG_THROW.

Referenced by ug::ILU< TAlgebra >::preprocess().

◆ applyLU()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::applyLU	(	vector_type &	c,
		const vector_type &	d,
		vector_type &	tmp
	)

inlineprotected

References ug::invert_L(), ug::invert_U(), ug::ILU< TAlgebra >::m_bSortIsIdentity, ug::ILU< TAlgebra >::m_ILU, ug::ILU< TAlgebra >::m_invEps, ug::ILU< TAlgebra >::m_old_ordering, ug::ILU< TAlgebra >::m_ordering, ug::ILU< TAlgebra >::m_spOrderingAlgo, ug::VectorDebugWritingObject< TAlgebra::vector_type >::print_debugger_message(), and ug::SetVectorAsPermutation().

Referenced by ug::ILU< TAlgebra >::step().

◆ clone()

template<typename TAlgebra >

virtual SmartPtr<ILinearIterator<vector_type> > ug::ILU< TAlgebra >::clone ( )

inlinevirtual

Clone.

Implements ug::ILinearIterator< TAlgebra::vector_type >.

References make_sp().

◆ enable_consistent_interfaces()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::enable_consistent_interfaces ( bool enable )

inline

enables consistent interfaces.

Connections between coefficients which lie in the same parallel interface are made consistent between processes.

References ug::ILU< TAlgebra >::m_useConsistentInterfaces.

◆ enable_overlap()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::enable_overlap ( bool enable )

inline

References ug::ILU< TAlgebra >::m_useOverlap.

◆ init() [1/3]

template<typename TAlgebra >

virtual bool ug::ILU< TAlgebra >::init	(	SmartPtr< ILinearOperator< vector_type > >	J,
		const vector_type &	u
	)

inlineprotectedvirtual

implements the ILinearIterator-interface for matrix based preconditioner

This method implements the ILinearIterator interface. It check if the passed linear operator is matrix based (otherwise this preconditioner can not be used for the linear operator). Then the request is forwarded to the implementation of matrix based operators.

Parameters

[in]	J	linear operator
[in]	u	linearization point

Returns: bool success flag

Reimplemented from ug::IPreconditioner< TAlgebra >.

References ug::IPreconditioner< TAlgebra >::init(), SmartPtr< T, FreePolicy >::invalid(), ug::ILU< TAlgebra >::m_u, ug::ILU< TAlgebra >::name(), and UG_THROW.

◆ init() [2/3]

template<typename TAlgebra >

bool ug::ILU< TAlgebra >::init ( SmartPtr< ILinearOperator< vector_type > > L )

inlineprotected

References ug::IPreconditioner< TAlgebra >::init(), SmartPtr< T, FreePolicy >::invalid(), ug::ILU< TAlgebra >::m_u, ug::ILU< TAlgebra >::name(), and UG_THROW.

◆ init() [3/3]

template<typename TAlgebra >

bool ug::ILU< TAlgebra >::init ( SmartPtr< MatrixOperator< matrix_type, vector_type > > Op )

inlineprotected

References ug::IPreconditioner< TAlgebra >::init(), and ug::ILU< TAlgebra >::m_u.

◆ name()

template<typename TAlgebra >

virtual const char* ug::ILU< TAlgebra >::name ( ) const

inlineprotectedvirtual

returns the name of iterator

This method returns the name of the iterator operator. This function is typically needed, when the iterator operator is used inside of another operator and some debug output should be printed

Returns: const char* name of inverse operator

Implements ug::IPreconditioner< TAlgebra >.

Referenced by ug::ILU< TAlgebra >::init(), and ug::ILU< TAlgebra >::write_overlap_debug().

◆ postprocess()

template<typename TAlgebra >

virtual bool ug::ILU< TAlgebra >::postprocess ( )

inlineprotectedvirtual

Postprocess routine.

Implements ug::IPreconditioner< TAlgebra >.

◆ preprocess()

template<typename TAlgebra >

virtual bool ug::ILU< TAlgebra >::preprocess ( SmartPtr< MatrixOperator< matrix_type, vector_type > > pOp )

inlineprotectedvirtual

initializes the preconditioner

This method is used to initialize the preconditioner. Usually, here are performed computationally expensive operations, that should only be computed once for an underlying matrix (e.g. LU factorization), while the preconditioner will by applied (using 'step'-method) several times.

Parameters

[in] mat underlying matrix (i.e. L in L*u = f)

Returns: bool success flag

Implements ug::IPreconditioner< TAlgebra >.

◆ set_beta()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::set_beta ( double beta )

inline

set factor for \( ILU_{\beta} \)

References ug::ILU< TAlgebra >::m_beta.

◆ set_disable_preprocessing()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::set_disable_preprocessing ( bool bDisable )

inline

disable preprocessing (if underlying matrix has not changed)

References ug::ILU< TAlgebra >::m_bDisablePreprocessing.

◆ set_inversion_eps()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::set_inversion_eps ( number eps )

inline

sets the smallest allowed value for the Aii/Bi quotient

References ug::ILU< TAlgebra >::m_invEps.

◆ set_ordering_algorithm()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::set_ordering_algorithm ( SmartPtr< ordering_algo_type > ordering_algo )

inline

sets an ordering algorithm

References ug::ILU< TAlgebra >::m_spOrderingAlgo.

◆ set_sort()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::set_sort ( bool b )

inline

set cuthill-mckee sort on/off

References ug::ILU< TAlgebra >::m_spOrderingAlgo, make_sp(), SPNULL, and UG_LOG.

◆ set_sort_eps()

template<typename TAlgebra >

void ug::ILU< TAlgebra >::set_sort_eps ( number eps )

inline

sets the smallest allowed value for sorted factorization

References ug::ILU< TAlgebra >::m_sortEps.

◆ step()

template<typename TAlgebra >

virtual bool ug::ILU< TAlgebra >::step	(	SmartPtr< MatrixOperator< matrix_type, vector_type > >	pOp,
		vector_type &	c,
		const vector_type &	d
	)

inlineprotectedvirtual

computes a new correction c = B*d

This method computes a new correction c = B*d. It can only be called, when the preprocess has been done.

Parameters

[in]	mat	underlying matrix (i.e. L in L*u = f)
[out]	c	correction
[in]	d	defect

Returns: bool success flag

Implements ug::IPreconditioner< TAlgebra >.

References ug::ILU< TAlgebra >::applyLU(), ug::ILU< TAlgebra >::m_h, ug::ILU< TAlgebra >::m_oC, ug::ILU< TAlgebra >::m_oD, ug::ILU< TAlgebra >::m_useConsistentInterfaces, ug::ILU< TAlgebra >::m_useOverlap, PROFILE_BEGIN_GROUP, ug::PST_ADDITIVE, ug::PST_CONSISTENT, ug::PST_UNIQUE, ug::SetLayoutValues(), ug::DebugWritingObject< TAlgebra >::write_debug(), and ug::ILU< TAlgebra >::write_overlap_debug().

◆ supports_parallel()

template<typename TAlgebra >

virtual bool ug::ILU< TAlgebra >::supports_parallel ( ) const

inlinevirtual

returns if parallel solving is supported

Implements ug::ILinearIterator< TAlgebra::vector_type >.

◆ write_overlap_debug()

template<typename TAlgebra >

template<class T >

void ug::ILU< TAlgebra >::write_overlap_debug	(	const T &	t,
		std::string	name
	)

inlineprivate

References ug::DebugWritingObject< TAlgebra >::debug_writer(), ug::ILU< TAlgebra >::m_overlapWriter, ug::ILU< TAlgebra >::m_useOverlap, ug::ILU< TAlgebra >::name(), and ug::DebugWritingObject< TAlgebra >::write_debug().

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::step().

Member Data Documentation

◆ m_bDisablePreprocessing

template<typename TAlgebra >

bool ug::ILU< TAlgebra >::m_bDisablePreprocessing

protected

whether or not to disable preprocessing

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::set_disable_preprocessing().

◆ m_beta

template<typename TAlgebra >

number ug::ILU< TAlgebra >::m_beta

protected

factor for ILU-beta

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::set_beta().

◆ m_bSortIsIdentity

template<typename TAlgebra >

bool ug::ILU< TAlgebra >::m_bSortIsIdentity

protected

Referenced by ug::ILU< TAlgebra >::apply_ordering(), and ug::ILU< TAlgebra >::applyLU().

◆ m_h

template<typename TAlgebra >

vector_type ug::ILU< TAlgebra >::m_h

protected

help vector

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::step().

◆ m_ILU

template<typename TAlgebra >

matrix_type ug::ILU< TAlgebra >::m_ILU

protected

storage for factorization

Referenced by ug::ILU< TAlgebra >::apply_ordering(), ug::ILU< TAlgebra >::applyLU(), and ug::ILU< TAlgebra >::preprocess().

◆ m_invEps

template<typename TAlgebra >

number ug::ILU< TAlgebra >::m_invEps

protected

smallest allowed value for the Aii/Bi quotient

Referenced by ug::ILU< TAlgebra >::applyLU(), and ug::ILU< TAlgebra >::set_inversion_eps().

◆ m_newIndex

template<typename TAlgebra >

std::vector<size_t> ug::ILU< TAlgebra >::m_newIndex

protected

◆ m_oC

template<typename TAlgebra >

vector_type ug::ILU< TAlgebra >::m_oC

protected

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::step().

◆ m_oD

template<typename TAlgebra >

vector_type ug::ILU< TAlgebra >::m_oD

protected

for overlaps only

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::step().

◆ m_old_ordering

template<typename TAlgebra >

ordering_container_type ug::ILU< TAlgebra >::m_old_ordering

protected

Referenced by ug::ILU< TAlgebra >::apply_ordering(), and ug::ILU< TAlgebra >::applyLU().

◆ m_oldIndex

template<typename TAlgebra >

std::vector<size_t> ug::ILU< TAlgebra >::m_oldIndex

protected

◆ m_ordering

template<typename TAlgebra >

ordering_container_type ug::ILU< TAlgebra >::m_ordering

protected

Referenced by ug::ILU< TAlgebra >::apply_ordering(), and ug::ILU< TAlgebra >::applyLU().

◆ m_overlapWriter

template<typename TAlgebra >

SmartPtr<OverlapWriter<TAlgebra> > ug::ILU< TAlgebra >::m_overlapWriter

protected

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::write_overlap_debug().

◆ m_sortEps

template<typename TAlgebra >

number ug::ILU< TAlgebra >::m_sortEps

protected

smallest allowed value for sorted factorization

Referenced by ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::set_sort_eps().

◆ m_spOrderingAlgo

template<typename TAlgebra >

SmartPtr<ordering_algo_type> ug::ILU< TAlgebra >::m_spOrderingAlgo

protected

for ordering algorithms

Referenced by ug::ILU< TAlgebra >::apply_ordering(), ug::ILU< TAlgebra >::applyLU(), ug::ILU< TAlgebra >::set_ordering_algorithm(), and ug::ILU< TAlgebra >::set_sort().

◆ m_u

template<typename TAlgebra >

const vector_type* ug::ILU< TAlgebra >::m_u

protected

Referenced by ug::ILU< TAlgebra >::apply_ordering(), and ug::ILU< TAlgebra >::init().

◆ m_useConsistentInterfaces

template<typename TAlgebra >

bool ug::ILU< TAlgebra >::m_useConsistentInterfaces

protected

Referenced by ug::ILU< TAlgebra >::enable_consistent_interfaces(), ug::ILU< TAlgebra >::preprocess(), and ug::ILU< TAlgebra >::step().

◆ m_useOverlap

template<typename TAlgebra >

bool ug::ILU< TAlgebra >::m_useOverlap

protected

Referenced by ug::ILU< TAlgebra >::apply_ordering(), ug::ILU< TAlgebra >::enable_overlap(), ug::ILU< TAlgebra >::preprocess(), ug::ILU< TAlgebra >::step(), and ug::ILU< TAlgebra >::write_overlap_debug().

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

ugbase/lib_algebra/operator/preconditioner/ilu.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Detailed Description

template<typename TAlgebra> class ug::ILU< TAlgebra >

Member Typedef Documentation

◆ algebra_type

◆ base_type

◆ matrix_operator_type

◆ matrix_type

◆ ordering_algo_type

◆ ordering_container_type

◆ vector_type

Constructor & Destructor Documentation

◆ ILU() [1/2]

◆ ILU() [2/2]

◆ ~ILU()

Member Function Documentation

◆ apply_ordering()

◆ applyLU()

◆ clone()

◆ enable_consistent_interfaces()

◆ enable_overlap()

◆ init() [1/3]

◆ init() [2/3]

◆ init() [3/3]

◆ name()

◆ postprocess()

◆ preprocess()

◆ set_beta()

◆ set_disable_preprocessing()

◆ set_inversion_eps()

◆ set_ordering_algorithm()

◆ set_sort()

◆ set_sort_eps()

◆ step()

◆ supports_parallel()

◆ write_overlap_debug()

Member Data Documentation

◆ m_bDisablePreprocessing

◆ m_beta

◆ m_bSortIsIdentity

◆ m_h

◆ m_ILU

◆ m_invEps

◆ m_newIndex

◆ m_oC

◆ m_oD

◆ m_old_ordering

◆ m_oldIndex

◆ m_ordering

◆ m_overlapWriter

◆ m_sortEps

◆ m_spOrderingAlgo

◆ m_u

◆ m_useConsistentInterfaces

◆ m_useOverlap

template<typename TAlgebra>
class ug::ILU< TAlgebra >