Class that encapsulates Ifpack smoothers. More...

#include <MueLu_IfpackSmoother.hpp>

Inheritance diagram for MueLu::IfpackSmoother< Node >:

Public Member Functions
void	SetParameterList (const Teuchos::ParameterList &paramList)
	Set parameters from a parameter list and return with default values. More...

Public Member Functions inherited from MueLu::SmootherPrototype< double, int, int, Node >
	SmootherPrototype ()
	/Destructors. More...

virtual	~SmootherPrototype ()

bool	IsSetup () const
	Get the state of a smoother prototype. More...

void	IsSetup (bool const &ToF)
	Set the state of a smoother prototype. More...

virtual void	CallBuild (Level &) const

virtual void	CallDeclareInput (Level &requestedLevel) const

Public Member Functions inherited from MueLu::SmootherBase< Scalar, LocalOrdinal, GlobalOrdinal, Node >
	SmootherBase ()

virtual	~SmootherBase ()

Public Member Functions inherited from MueLu::BaseClass
virtual	~BaseClass ()
	Destructor. More...

Public Member Functions inherited from MueLu::VerboseObject
VerbLevel	GetVerbLevel () const
	Get the verbosity level. More...

void	SetVerbLevel (const VerbLevel verbLevel)
	Set the verbosity level of this object. More...

int	GetProcRankVerbose () const
	Get proc rank used for printing. Do not use this information for any other purpose. More...

int	SetProcRankVerbose (int procRank) const
	Set proc rank used for printing. More...

bool	IsPrint (MsgType type, int thisProcRankOnly=-1) const
	Find out whether we need to print out information for a specific message type. More...

Teuchos::FancyOStream &	GetOStream (MsgType type, int thisProcRankOnly=0) const
	Get an output stream for outputting the input message type. More...

Teuchos::FancyOStream &	GetBlackHole () const

	VerboseObject ()

virtual	~VerboseObject ()
	Destructor. More...

Public Member Functions inherited from Teuchos::VerboseObject< VerboseObject >
	VerboseObject (const EVerbosityLevel verbLevel=VERB_DEFAULT, const RCP< FancyOStream > &oStream=Teuchos::null)

virtual const VerboseObject &	setVerbLevel (const EVerbosityLevel verbLevel) const

virtual const VerboseObject &	setOverridingVerbLevel (const EVerbosityLevel verbLevel) const

virtual EVerbosityLevel	getVerbLevel () const

TEUCHOSPARAMETERLIST_LIB_DLL_EXPORT RCP< const ParameterList >	getValidVerboseObjectSublist ()

TEUCHOSPARAMETERLIST_LIB_DLL_EXPORT void	setupVerboseObjectSublist (ParameterList *paramList)

TEUCHOSPARAMETERLIST_LIB_DLL_EXPORT void	readVerboseObjectSublist (ParameterList paramList, RCP< FancyOStream > oStream, EVerbosityLevel *verbLevel)

void	readVerboseObjectSublist (ParameterList paramList, VerboseObject< ObjectType > verboseObject)

Public Member Functions inherited from Teuchos::VerboseObjectBase
virtual	~VerboseObjectBase ()

	VerboseObjectBase (const RCP< FancyOStream > &oStream=Teuchos::null)

virtual const VerboseObjectBase &	setOStream (const RCP< FancyOStream > &oStream) const

virtual const VerboseObjectBase &	setOverridingOStream (const RCP< FancyOStream > &oStream) const

virtual VerboseObjectBase &	setLinePrefix (const std::string &linePrefix)

virtual RCP< FancyOStream >	getOStream () const

virtual RCP< FancyOStream >	getOverridingOStream () const

virtual std::string	getLinePrefix () const

virtual OSTab	getOSTab (const int tabs=1, const std::string &linePrefix="") const

Public Member Functions inherited from MueLu::Describable
virtual	~Describable ()
	Destructor. More...

virtual std::string	ShortClassName () const
	Return the class name of the object, without template parameters and without namespace. More...

virtual void	describe (Teuchos::FancyOStream &out_arg, const VerbLevel verbLevel=Default) const

void	describe (Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const
	Print the object with some verbosity level to an FancyOStream object. More...

Public Member Functions inherited from Teuchos::Describable
void	describe (std::ostream &out, const EVerbosityLevel verbLevel=verbLevel_default) const

	LabeledObject ()

virtual	~LabeledObject ()

virtual void	setObjectLabel (const std::string &objectLabel)

virtual std::string	getObjectLabel () const

DescribableStreamManipulatorState	describe (const Describable &describable, const EVerbosityLevel verbLevel=Describable::verbLevel_default)

std::ostream &	operator<< (std::ostream &os, const DescribableStreamManipulatorState &d)

Public Member Functions inherited from MueLu::Factory
void	EnableMultipleCallCheck () const
	Constructor. More...

void	DisableMultipleCallCheck () const

void	ResetDebugData () const

Public Member Functions inherited from MueLu::FactoryBase
	FactoryBase ()
	Constructor. More...

virtual	~FactoryBase ()
	Destructor. More...

int	GetID () const
	return unique factory id More...

Public Member Functions inherited from MueLu::FactoryAcceptor
virtual	~FactoryAcceptor ()

virtual void	SetFactory (const std::string &varName, const RCP< const FactoryBase > &factory)=0
	Configuration. More...

virtual const RCP< const FactoryBase >	GetFactory (const std::string &varName) const =0

Public Member Functions inherited from MueLu::ParameterListAcceptorImpl
	ParameterListAcceptorImpl ()

virtual	~ParameterListAcceptorImpl ()=default

virtual const Teuchos::ParameterList &	GetParameterList () const

void	SetParameter (const std::string &name, const ParameterEntry &entry)
	Set a parameter directly as a ParameterEntry. More...

const ParameterEntry &	GetParameter (const std::string &name) const
	Retrieves a const entry with the name name. More...

virtual void	GetDocumentation (std::ostream &os) const

Public Member Functions inherited from MueLu::ParameterListAcceptor
	ParameterListAcceptor ()

virtual	~ParameterListAcceptor ()=default

virtual Teuchos::RCP< const Teuchos::ParameterList >	GetValidParameterList () const =0
	Return a const parameter list of valid parameters that setParameterList() will accept. More...

Private Types
typedef double	Scalar

typedef int	LocalOrdinal

typedef int	GlobalOrdinal

Private Member Functions
void	SetPrecParameters (const Teuchos::ParameterList &list=Teuchos::ParameterList()) const

Private Attributes
std::string	type_
	ifpack-specific key phrase that denote smoother type More...

LO	overlap_
	overlap when using the smoother in additive Schwarz mode More...

RCP< Matrix >	A_
	Matrix. Not used directly, but held inside of prec_. So we have to keep an RCP pointer to it! More...

RCP< Ifpack_Preconditioner >	prec_
	pointer to Ifpack solver object More...

Constructors / destructors
	IfpackSmoother (std::string const &type, Teuchos::ParameterList const &paramList=Teuchos::ParameterList(), LO const &overlap=0)
	Constructor. More...

virtual	~IfpackSmoother ()
	Destructor. More...

void	DeclareInput (Level &currentLevel) const
	Input. More...

Computational methods.
void	Setup (Level &currentLevel)
	Set up the smoother. More...

void	Apply (MultiVector &X, const MultiVector &B, bool InitialGuessIsZero=false) const
	Apply the preconditioner. More...

Utilities
RCP< SmootherPrototype >	Copy () const

Overridden from Teuchos::Describable
std::string	description () const
	Return a simple one-line description of this object. More...

void	print (Teuchos::FancyOStream &out, const VerbLevel verbLevel=Default) const
	Print the object with some verbosity level to an FancyOStream object. More...

size_t	getNodeSmootherComplexity () const
	Get a rough estimate of cost per iteration. More...

Additional Inherited Members
Public Types inherited from MueLu::SmootherPrototype< double, int, int, Node >
typedef double	scalar_type

typedef int	local_ordinal_type

typedef int	global_ordinal_type

typedef Node	node_type

Public Types inherited from MueLu::SmootherBase< Scalar, LocalOrdinal, GlobalOrdinal, Node >
typedef Scalar	scalar_type

typedef LocalOrdinal	local_ordinal_type

typedef GlobalOrdinal	global_ordinal_type

typedef Node	node_type

Static Public Member Functions inherited from MueLu::VerboseObject
static void	SetMueLuOStream (const Teuchos::RCP< Teuchos::FancyOStream > &mueluOStream)

static Teuchos::RCP < Teuchos::FancyOStream >	GetMueLuOStream ()

static void	SetDefaultVerbLevel (const VerbLevel defaultVerbLevel)
	Set the default (global) verbosity level. More...

static VerbLevel	GetDefaultVerbLevel ()
	Get the default (global) verbosity level. More...

Static Public Member Functions inherited from Teuchos::VerboseObject< VerboseObject >
static void	setDefaultVerbLevel (const EVerbosityLevel defaultVerbLevel)

static EVerbosityLevel	getDefaultVerbLevel ()

Static Public Member Functions inherited from Teuchos::VerboseObjectBase
static void	setDefaultOStream (const RCP< FancyOStream > &defaultOStream)

static RCP< FancyOStream >	getDefaultOStream ()

Static Public Member Functions inherited from MueLu::Factory
static void	EnableMultipleCheckGlobally ()

static void	DisableMultipleCheckGlobally ()

Static Public Attributes inherited from Teuchos::Describable
static const EVerbosityLevel	verbLevel_default

Protected Member Functions inherited from Teuchos::VerboseObject< VerboseObject >
void	initializeVerboseObject (const EVerbosityLevel verbLevel=VERB_DEFAULT, const RCP< FancyOStream > &oStream=Teuchos::null)

Protected Member Functions inherited from Teuchos::VerboseObjectBase
void	initializeVerboseObjectBase (const RCP< FancyOStream > &oStream=Teuchos::null)

virtual void	informUpdatedVerbosityState () const

Detailed Description

template<class Node = typename SmootherPrototype<double,int,int>::node_type>
class MueLu::IfpackSmoother< Node >

Class that encapsulates Ifpack smoothers.

This class creates an Ifpack preconditioner factory. The factory creates a smoother based on the type and ParameterList passed into the constructor. See the constructor for more information.

Definition at line 76 of file MueLu_IfpackSmoother.hpp.

Member Typedef Documentation

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

typedef double MueLu::IfpackSmoother< Node >::Scalar

private

Definition at line 77 of file MueLu_IfpackSmoother.hpp.

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

typedef int MueLu::IfpackSmoother< Node >::LocalOrdinal

private

Definition at line 78 of file MueLu_IfpackSmoother.hpp.

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

typedef int MueLu::IfpackSmoother< Node >::GlobalOrdinal

private

Definition at line 79 of file MueLu_IfpackSmoother.hpp.

Constructor & Destructor Documentation

template<class Node >

MueLu::IfpackSmoother< Node >::IfpackSmoother	(	std::string const &	type,
		Teuchos::ParameterList const &	paramList = `Teuchos::ParameterList()`,
		LO const &	overlap = `0`
	)

Constructor.

The options passed into IfpackSmoother are those given in the Ifpack user's manual.

Parameters

type	smoother type
list	options for the particular smoother (e.g., fill factor or damping parameter)

Here is how to select some of the most common smoothers.

Gauss-Seidel
type = point relaxation stand-alone
parameter list options
relaxation: type = Gauss-Seidel
relaxation: damping factor
symmetric Gauss-Seidel
type = point relaxation stand-alone
parameter list options
relaxation: type = symmetric Gauss-Seidel
relaxation: damping factor
Chebyshev
type = Chebyshev
parameter list options
chebyshev: ratio eigenvalue
chebyshev: min eigenvalue
chebyshev: max eigenvalue
chebyshev: degree
chebyshev: zero starting solution (defaults to true)
ILU
type = ILU
parameter list options
fact: level-of-fill

Definition at line 62 of file MueLu_IfpackSmoother.cpp.

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

virtual MueLu::IfpackSmoother< Node >::~IfpackSmoother ( )

inlinevirtual

Destructor.

Definition at line 125 of file MueLu_IfpackSmoother.hpp.

Member Function Documentation

template<class Node >

void MueLu::IfpackSmoother< Node >::SetParameterList ( const Teuchos::ParameterList & paramList )

virtual

Set parameters from a parameter list and return with default values.

Reimplemented from MueLu::ParameterListAcceptorImpl.

Definition at line 69 of file MueLu_IfpackSmoother.cpp.

template<class Node >

void MueLu::IfpackSmoother< Node >::DeclareInput ( Level & currentLevel ) const

virtual

Input.

Implements MueLu::SmootherPrototype< double, int, int, Node >.

Definition at line 113 of file MueLu_IfpackSmoother.cpp.

template<class Node >

void MueLu::IfpackSmoother< Node >::Setup ( Level & currentLevel )

virtual

Set up the smoother.

This creates the underlying Ifpack smoother object, copies any parameter list options supplied to the constructor to the Ifpack object, and computes the preconditioner.

Implements MueLu::SmootherPrototype< double, int, int, Node >.

Definition at line 128 of file MueLu_IfpackSmoother.cpp.

template<class Node >

void MueLu::IfpackSmoother< Node >::Apply	(	MultiVector &	X,
		const MultiVector &	B,
		bool	InitialGuessIsZero = `false`
	)		const

virtual

Apply the preconditioner.

Solves the linear system AX=B using the constructed smoother.

Parameters

X	initial guess
B	right-hand side
InitialGuessIsZero	(optional) If false, some work can be avoided. Whether this actually saves any work depends on the underlying Ifpack implementation.

Implements MueLu::SmootherBase< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 260 of file MueLu_IfpackSmoother.cpp.

template<class Node >

RCP< MueLu::SmootherPrototype< double, int, int, Node > > MueLu::IfpackSmoother< Node >::Copy ( ) const

virtual

Implements MueLu::SmootherPrototype< double, int, int, Node >.

Definition at line 298 of file MueLu_IfpackSmoother.cpp.

template<class Node >

std::string MueLu::IfpackSmoother< Node >::description ( ) const

virtual

Return a simple one-line description of this object.

Reimplemented from MueLu::Describable.

Definition at line 305 of file MueLu_IfpackSmoother.cpp.

template<class Node >

void MueLu::IfpackSmoother< Node >::print	(	Teuchos::FancyOStream &	out,
		const VerbLevel	verbLevel = `Default`
	)		const

Print the object with some verbosity level to an FancyOStream object.

Definition at line 319 of file MueLu_IfpackSmoother.cpp.

template<class Node >

size_t MueLu::IfpackSmoother< Node >::getNodeSmootherComplexity ( ) const

virtual

Get a rough estimate of cost per iteration.

Implements MueLu::SmootherBase< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 347 of file MueLu_IfpackSmoother.cpp.

template<class Node >

void MueLu::IfpackSmoother< Node >::SetPrecParameters ( const Teuchos::ParameterList & list = Teuchos::ParameterList() ) const

private

Definition at line 80 of file MueLu_IfpackSmoother.cpp.

Member Data Documentation

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

std::string MueLu::IfpackSmoother< Node >::type_

private

ifpack-specific key phrase that denote smoother type

Definition at line 189 of file MueLu_IfpackSmoother.hpp.

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

LO MueLu::IfpackSmoother< Node >::overlap_

private

overlap when using the smoother in additive Schwarz mode

Definition at line 192 of file MueLu_IfpackSmoother.hpp.

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

RCP<Matrix> MueLu::IfpackSmoother< Node >::A_

private

Matrix. Not used directly, but held inside of prec_. So we have to keep an RCP pointer to it!

Definition at line 195 of file MueLu_IfpackSmoother.hpp.

template<class Node = typename SmootherPrototype<double,int,int>::node_type>

RCP<Ifpack_Preconditioner> MueLu::IfpackSmoother< Node >::prec_

private

pointer to Ifpack solver object

Definition at line 199 of file MueLu_IfpackSmoother.hpp.

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

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Constructors / destructors

Computational methods.

Utilities

Overridden from Teuchos::Describable

Additional Inherited Members

Detailed Description

template<class Node = typename SmootherPrototype<double,int,int>::node_type> class MueLu::IfpackSmoother< Node >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class Node = typename SmootherPrototype<double,int,int>::node_type>
class MueLu::IfpackSmoother< Node >