Prolongator factory performing semi-coarsening. More...

#include <MueLu_SemiCoarsenPFactory_decl.hpp>

Inheritance diagram for MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >:

Public Member Functions
RCP< const ParameterList >	GetValidParameterList () const
	Return a const parameter list of valid parameters that setParameterList() will accept. More...

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

virtual	~PFactory ()
	Destructor. More...

void	setRestrictionMode (bool bRestrictionMode=false)

bool	isRestrictionModeSet ()
	returns restrictionMode flag More...

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

virtual	~TwoLevelFactoryBase ()
	Destructor. More...

virtual void	CallDeclareInput (Level &requestedLevel) const

virtual void	CallBuild (Level &requestedLevel) const

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

void	DisableMultipleCallCheck () const

void	ResetDebugData () const

	Factory ()
	Constructor. More...

virtual	~Factory ()
	Destructor. More...

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

const RCP< const FactoryBase >	GetFactory (const std::string &varName) const
	Default implementation of FactoryAcceptor::GetFactory() More...

RCP< ParameterList >	RemoveFactoriesFromList (const ParameterList &list) 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::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

virtual std::string	description () const
	Return a simple one-line description of this object. More...

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::FactoryAcceptor
virtual	~FactoryAcceptor ()

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

virtual	~ParameterListAcceptorImpl ()=default

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

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

Private Member Functions
LO	FindCpts (LO const PtsPerLine, LO const CoarsenRate, LO const Thin, LO **LayerCpts) const

LO	MakeSemiCoarsenP (LO const Ntotal, LO const nz, LO const CoarsenRate, LO const LayerId[], LO const VertLineId[], LO const DofsPerNode, RCP< Matrix > &Amat, RCP< Matrix > &P, RCP< const Map > &coarseMap, const RCP< MultiVector > fineNullspace, RCP< MultiVector > &coarseNullspace, RCP< Matrix > &R, bool buildRestriction, bool doLinear) const

void	RevertToPieceWiseConstant (RCP< Matrix > &P, LO BlkSize) const

Private Attributes
bool	bTransferCoordinates_

Constructors/Destructors.
	SemiCoarsenPFactory ()
	Constructor. More...

virtual	~SemiCoarsenPFactory ()
	Destructor. More...

void	DeclareInput (Level &fineLevel, Level &coarseLevel) const
	Input. More...

Build methods.
void	Build (Level &fineLevel, Level &coarseLevel) const
	Build an object with this factory. More...

void	BuildP (Level &fineLevel, Level &coarseLevel) const
	Abstract Build method. More...

Additional Inherited Members
Static Public Member Functions inherited from MueLu::Factory
static void	EnableTimerSync ()

static void	DisableTimerSync ()

static void	EnableMultipleCheckGlobally ()

static void	DisableMultipleCheckGlobally ()

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

static void	SetMueLuOFileStream (const std::string &filename)

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 Attributes inherited from Teuchos::Describable
static const EVerbosityLevel	verbLevel_default

Protected Member Functions inherited from MueLu::Factory
void	Input (Level &level, const std::string &varName) const

void	Input (Level &level, const std::string &varName, const std::string &varParamName) const

template<class T >
T	Get (Level &level, const std::string &varName) const

template<class T >
T	Get (Level &level, const std::string &varName, const std::string &varParamName) const

template<class T >
void	Set (Level &level, const std::string &varName, const T &data) const

template<class T >
bool	IsType (Level &level, const std::string &varName) const

bool	IsAvailable (Level &level, const std::string &varName) const

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

Protected Attributes inherited from MueLu::PFactory
bool	restrictionMode_

Static Protected Attributes inherited from MueLu::Factory
static bool	timerSync_ = false

Detailed Description

template<class Scalar = DefaultScalar, class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>
class MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >

Prolongator factory performing semi-coarsening.

The semi-coarsening is performed along user-provided "vertical lines" (in z-direction). The line detection algorithm can be found in the LineDetectionFactory. Usually, the SemiCoarsenPFactory is used together with the TogglePFactory and a second TentativePFactory which allows to dynamically switch from semi-coarsening to aggregation-based coarsening (or any other compatible coarsening algorithm).

Input/output of SemiCoarsenPFactory

User parameters of SemiCoarsenPFactory

Parameter	type	default	validated	requested	description
A	Factory	null	*	*	Generating factory of the matrix A used during the prolongator smoothing process
Nullspace	Factory	null	*	*	Generating factory of the nullspace. The SemiCoarsenPFactory provides a coarse version of the given Nullspace.
Coordinates	Factory	NoFactory	*	*	Generating factory for coorindates. The coordinates are expected to be provided on the finest level using the NoFactory mechanism. The coordinates are used to determine the number of z-layers if not otherwise provided by the user.
LineDetection_VertLineIds	Factory	null	*	*	Generating factory for LineDetection information. Usually provided by the LineDetectionFactory. Array with vertical line ids for all nodes on current processor.
LineDetection_Layers	Factory	null	*	*	Generating factory for LineDetection information. Usually provided by the LineDetectionFactory. Array with layer id for all nodes on current processor.
CoarseNumZLayers	Factory	null	*	*	Generating factory for LineDetection information. Usually provided by the LineDetectionFactory. Number of remaining z-layers after semi-coarsening.

| semicoarsen: coarsen rate | int | * | * | | Coarsening rate along vertical lines (2 corresponds to classical semicoarsening. Values > 2 for more aggressive coarsening). |

The * in the master.xml column denotes that the parameter is defined in the master.xml file.
The * in the validated column means that the parameter is declared in the list of valid input parameters (see SemiCoarsenPFactory::GetValidParameters).
The * in the requested column states that the data is requested as input with all dependencies (see SemiCoarsenPFactory::DeclareInput).

Variables provided by SemiCoarsenPFactory

After SemiCoarsenPFactory::Build the following data is available (if requested)

Parameter	generated by	description
P	SemiCoarsenPFactory	Prolongator
Nullspace	SemiCoarsenPFactory	Coarse nullspace (the fine level nullspace information is coarsened using P to generate a coarse version of the nullspace. No scaling is applied.
NumZLayers	NoFactory	Number of z layers after coarsening. Necessary input for LineDetectionFactory. Useful input for TogglePFactory.

Definition at line 74 of file MueLu_SemiCoarsenPFactory_decl.hpp.

Constructor & Destructor Documentation

template<class Scalar = DefaultScalar, class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::SemiCoarsenPFactory ( )

inline

Constructor.

Definition at line 83 of file MueLu_SemiCoarsenPFactory_decl.hpp.

template<class Scalar = DefaultScalar, class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

virtual MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::~SemiCoarsenPFactory ( )

inlinevirtual

Destructor.

Definition at line 87 of file MueLu_SemiCoarsenPFactory_decl.hpp.

Member Function Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

RCP< const ParameterList > MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::GetValidParameterList ( ) const

virtual

Return a const parameter list of valid parameters that setParameterList() will accept.

Also define the default values of parameters according to the input parameter list.

Reimplemented from MueLu::Factory.

Definition at line 32 of file MueLu_SemiCoarsenPFactory_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::DeclareInput	(	Level &	fineLevel,
		Level &	coarseLevel
	)		const

virtual

Input.

Implements MueLu::TwoLevelFactoryBase.

Definition at line 53 of file MueLu_SemiCoarsenPFactory_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::Build	(	Level &	fineLevel,
		Level &	coarseLevel
	)		const

virtual

Build an object with this factory.

Implements MueLu::TwoLevelFactoryBase.

Definition at line 84 of file MueLu_SemiCoarsenPFactory_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::BuildP	(	Level &	fineLevel,
		Level &	coarseLevel
	)		const

virtual

Abstract Build method.

Implements MueLu::PFactory.

Definition at line 89 of file MueLu_SemiCoarsenPFactory_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

LocalOrdinal MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::FindCpts	(	LO const	PtsPerLine,
		LO const	CoarsenRate,
		LO const	Thin,
		LO **	LayerCpts
	)		const

private

Definition at line 247 of file MueLu_SemiCoarsenPFactory_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

LocalOrdinal MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::MakeSemiCoarsenP	(	LO const	Ntotal,
		LO const	nz,
		LO const	CoarsenRate,
		LO const	LayerId[],
		LO const	VertLineId[],
		LO const	DofsPerNode,
		RCP< Matrix > &	Amat,
		RCP< Matrix > &	P,
		RCP< const Map > &	coarseMap,
		const RCP< MultiVector >	fineNullspace,
		RCP< MultiVector > &	coarseNullspace,
		RCP< Matrix > &	R,
		bool	buildRestriction,
		bool	doLinear
	)		const

private

Definition at line 305 of file MueLu_SemiCoarsenPFactory_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >

void MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::RevertToPieceWiseConstant	(	RCP< Matrix > &	P,
		LO	BlkSize
	)		const

private

Definition at line 950 of file MueLu_SemiCoarsenPFactory_def.hpp.

Member Data Documentation

template<class Scalar = DefaultScalar, class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>

bool MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >::bTransferCoordinates_

mutableprivate

Definition at line 115 of file MueLu_SemiCoarsenPFactory_decl.hpp.

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

Public Member Functions

Private Member Functions

Private Attributes

Constructors/Destructors.

Build methods.

Additional Inherited Members

Detailed Description

template<class Scalar = DefaultScalar, class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode> class MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >

Input/output of SemiCoarsenPFactory

User parameters of SemiCoarsenPFactory

Variables provided by SemiCoarsenPFactory

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class Scalar = DefaultScalar, class LocalOrdinal = DefaultLocalOrdinal, class GlobalOrdinal = DefaultGlobalOrdinal, class Node = DefaultNode>
class MueLu::SemiCoarsenPFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >