#include <block_gauss_seidel.h>

Inheritance diagram for ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >:

Public Types
typedef TAlgebra	algebra_type

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

typedef matrix_type::const_row_iterator	const_row_iterator

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

typedef TAlgebra::matrix_type	matrix_type

typedef matrix_type::value_type	smallmat_type

typedef vector_type::value_type	smallvec_type

typedef SparseBlockGaussSeidel2< TAlgebra, backward, forward >	this_type

typedef TAlgebra::vector_type	vector_type

Public Types inherited from ug::IBlockJacobiPreconditioner< TAlgebra >
typedef TAlgebra	algebra_type

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

typedef TAlgebra::matrix_type	matrix_type

typedef TAlgebra::vector_type	vector_type

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	set_depth (size_t d)

	SparseBlockGaussSeidel2 ()

	SparseBlockGaussSeidel2 (const this_type &parent)

	SparseBlockGaussSeidel2 (int depth)

Public Member Functions inherited from ug::IBlockJacobiPreconditioner< TAlgebra >
	IBlockJacobiPreconditioner ()

	IBlockJacobiPreconditioner (const IBlockJacobiPreconditioner &parent)

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...

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)
	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 >
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...

Public Attributes
std::map< size_t, SmartPtr< CPUAlgebra::matrix_type > >	Aloc

std::vector< std::vector< size_t > >	indices

size_t	m_depth

std::map< size_t, SmartPtr< ILUTPreconditioner< CPUAlgebra > > >	m_ilut

Protected Types
typedef matrix_type::value_type	block_type

typedef matrix_type::const_row_iterator	matrix_const_row_iterator

typedef matrix_type::row_iterator	matrix_row_iterator

Protected Member Functions
virtual bool	block_preprocess (matrix_type &A)

virtual bool	block_step (matrix_type &A, vector_type &c, const vector_type &d)

virtual std::string	config_string () const

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

virtual bool	postprocess ()
	cleans the operator More...

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

Protected Member Functions inherited from ug::IBlockJacobiPreconditioner< TAlgebra >
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...

Additional Inherited Members
Protected Attributes inherited from ug::IBlockJacobiPreconditioner< TAlgebra >
matrix_type	A

SmartPtr< vector_type >	m_spDtmp

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...

Detailed Description

template<typename TAlgebra, bool backward, bool forward>
class ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >

SparseBlockGaussSeidel experimental version a) can use bigger stencils since it uses SparseLU for solving blocks b) tries to use some overlapping blocks (BlockGaussSeidel always uses N blocks)

Member Typedef Documentation

◆ algebra_type

template<typename TAlgebra , bool backward, bool forward>

typedef TAlgebra ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::algebra_type

◆ base_type

template<typename TAlgebra , bool backward, bool forward>

typedef IBlockJacobiPreconditioner<TAlgebra> ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::base_type

Base type.

◆ block_type

template<typename TAlgebra , bool backward, bool forward>

typedef matrix_type::value_type ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_type

protected

◆ const_row_iterator

template<typename TAlgebra , bool backward, bool forward>

typedef matrix_type::const_row_iterator ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::const_row_iterator

◆ matrix_const_row_iterator

template<typename TAlgebra , bool backward, bool forward>

typedef matrix_type::const_row_iterator ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::matrix_const_row_iterator

protected

◆ matrix_operator_type

template<typename TAlgebra , bool backward, bool forward>

typedef IPreconditioner<TAlgebra>::matrix_operator_type ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::matrix_operator_type

Matrix Operator type.

◆ matrix_row_iterator

template<typename TAlgebra , bool backward, bool forward>

typedef matrix_type::row_iterator ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::matrix_row_iterator

protected

◆ matrix_type

template<typename TAlgebra , bool backward, bool forward>

typedef TAlgebra::matrix_type ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::matrix_type

◆ smallmat_type

template<typename TAlgebra , bool backward, bool forward>

typedef matrix_type::value_type ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::smallmat_type

◆ smallvec_type

template<typename TAlgebra , bool backward, bool forward>

typedef vector_type::value_type ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::smallvec_type

◆ this_type

template<typename TAlgebra , bool backward, bool forward>

typedef SparseBlockGaussSeidel2<TAlgebra, backward, forward> ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::this_type

◆ vector_type

template<typename TAlgebra , bool backward, bool forward>

typedef TAlgebra::vector_type ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::vector_type

Constructor & Destructor Documentation

◆ SparseBlockGaussSeidel2() [1/3]

template<typename TAlgebra , bool backward, bool forward>

ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::SparseBlockGaussSeidel2 ( )

inline

References ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_depth.

◆ SparseBlockGaussSeidel2() [2/3]

template<typename TAlgebra , bool backward, bool forward>

ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::SparseBlockGaussSeidel2 ( int depth )

inline

References ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_depth.

◆ SparseBlockGaussSeidel2() [3/3]

template<typename TAlgebra , bool backward, bool forward>

ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::SparseBlockGaussSeidel2 ( const this_type & parent )

inline

References ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_depth.

Member Function Documentation

◆ block_preprocess()

template<typename TAlgebra , bool backward, bool forward>

virtual bool ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_preprocess ( matrix_type & A )

inlineprotectedvirtual

Implements ug::IBlockJacobiPreconditioner< TAlgebra >.

References ug::IBlockJacobiPreconditioner< TAlgebra >::A, ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::Aloc, ug::cgraph::begin_row(), ug::CreateStrongConnectionGraphForSystems(), ug::cgraph::end_row(), ug::GetSliceSparse(), ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::indices, ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_ilut, make_sp(), num_rows(), PRINT_VECTOR, PROGRESS_FINISH, PROGRESS_START, ug::cgraph::resize(), ug::cgraph::set_connection(), ug::cgraph::size(), UG_COND_THROW, and UG_LOG.

◆ block_step()

template<typename TAlgebra , bool backward, bool forward>

virtual bool ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_step	(	matrix_type &	A,
		vector_type &	c,
		const vector_type &	d
	)

inlineprotectedvirtual

Implements ug::IBlockJacobiPreconditioner< TAlgebra >.

References ug::IBlockJacobiPreconditioner< TAlgebra >::A, ug::GetBlockGSCorrectionILUT(), ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::indices, ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_ilut, PROGRESS_FINISH, PROGRESS_START, PROGRESS_UPDATE, and ug::PST_CONSISTENT.

◆ clone()

template<typename TAlgebra , bool backward, bool forward>

virtual SmartPtr<ILinearIterator<vector_type> > ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::clone ( )

inlinevirtual

clone

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

References make_sp().

◆ config_string()

template<typename TAlgebra , bool backward, bool forward>

virtual std::string ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::config_string ( ) const

inlineprotectedvirtual

Reimplemented from ug::ILinearIterator< TAlgebra::vector_type >.

References ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_depth.

◆ name()

template<typename TAlgebra , bool backward, bool forward>

virtual const char* ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::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 >.

◆ postprocess()

template<typename TAlgebra , bool backward, bool forward>

virtual bool ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::postprocess ( )

inlineprotectedvirtual

cleans the operator

Reimplemented from ug::IBlockJacobiPreconditioner< TAlgebra >.

◆ set_depth()

template<typename TAlgebra , bool backward, bool forward>

void ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::set_depth ( size_t d )

inline

References ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_depth.

◆ supports_parallel()

template<typename TAlgebra , bool backward, bool forward>

virtual bool ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::supports_parallel ( ) const

inlineprotectedvirtual

returns if parallel solving is supported

Reimplemented from ug::IBlockJacobiPreconditioner< TAlgebra >.

Member Data Documentation

◆ Aloc

template<typename TAlgebra , bool backward, bool forward>

std::map<size_t, SmartPtr<CPUAlgebra::matrix_type> > ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::Aloc

Referenced by ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_preprocess().

◆ indices

template<typename TAlgebra , bool backward, bool forward>

std::vector<std::vector<size_t> > ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::indices

Referenced by ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_preprocess(), and ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_step().

◆ m_depth

template<typename TAlgebra , bool backward, bool forward>

size_t ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_depth

Referenced by ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::config_string(), ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::set_depth(), and ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::SparseBlockGaussSeidel2().

◆ m_ilut

template<typename TAlgebra , bool backward, bool forward>

std::map<size_t, SmartPtr<ILUTPreconditioner<CPUAlgebra> > > ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::m_ilut

Referenced by ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_preprocess(), and ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >::block_step().

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

ugbase/lib_algebra/operator/preconditioner/block_gauss_seidel.h

Public Types

Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Additional Inherited Members

Detailed Description

template<typename TAlgebra, bool backward, bool forward> class ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >

Member Typedef Documentation

◆ algebra_type

◆ base_type

◆ block_type

◆ const_row_iterator

◆ matrix_const_row_iterator

◆ matrix_operator_type

◆ matrix_row_iterator

◆ matrix_type

◆ smallmat_type

◆ smallvec_type

◆ this_type

◆ vector_type

Constructor & Destructor Documentation

◆ SparseBlockGaussSeidel2() [1/3]

◆ SparseBlockGaussSeidel2() [2/3]

◆ SparseBlockGaussSeidel2() [3/3]

Member Function Documentation

◆ block_preprocess()

◆ block_step()

◆ clone()

◆ config_string()

◆ name()

◆ postprocess()

◆ set_depth()

◆ supports_parallel()

Member Data Documentation

◆ Aloc

◆ indices

◆ m_depth

◆ m_ilut

template<typename TAlgebra, bool backward, bool forward>
class ug::SparseBlockGaussSeidel2< TAlgebra, backward, forward >