Factory for building the matrix-free tentative restrictor. More...

#include <MueLu_MatrixFreeTentativePFactory_decl.hpp>

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

Public Types
typedef LocalOrdinal	local_ordinal_type

typedef GlobalOrdinal	global_ordinal_type

typedef Node::execution_space	execution_space

typedef Kokkos::RangePolicy < local_ordinal_type, execution_space >	range_type

typedef Node	node_type

typedef Teuchos::ScalarTraits < Scalar >::coordinateType	real_type

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
	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::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 ()

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 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

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

virtual	~MatrixFreeTentativePFactory ()
	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	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 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_

Detailed Description

template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
class MueLu::MatrixFreeTentativePFactory< Scalar, LocalOrdinal, GlobalOrdinal, Node >

Factory for building the matrix-free tentative restrictor.

Factory for creating the matrix-free tentative restrictor. Nullspace vectors are split across aggregates so that they have local support. The vectors with local support are factored via LAPACK QR. The Q becomes the tentative prolongator, and the R becomes the coarse nullspace.

Note that the MatrixFreeTentativePFactory also creates the coarse null space vectors, that is, it serves as generating factory for the Nullspace vectors on the coarse levels. To feed in the near null space vectors on the finest level one has to use the NullspaceFactory.

Input/output of MatrixFreeTentativePFactory

User parameters of MatrixFreeTentativePFactory

Parameter	type	default	validated	requested	description
Aggregates	Factory	null	*	*	Generating factory of the aggregates (of type "Aggregates" produced, e.g., by the UncoupledAggregationFactory)
Nullspace	Factory	null	*	*	Generating factory of the fine nullspace vectors (of type "MultiVector"). In the default case the same instance of the MatrixFreeTentativePFactory is also the generating factory for the null space vectors (on the next coarser levels). Therefore, it is recommended to declare the MatrixFreeTentativePFactory to be the generating factory of the "Nullspace" variable globally using the FactoryManager object! For defining the near null space vectors on the finest level one should use the NullspaceFactory.
UnAmalgamationInfo	Factory	null	*	*	Generating factory of UnAmalgamationInfo. This data (of type "AmalgamationInfo") is produced by the AmalgamationFactory class. The default option should be fine for most standard cases though.
CoarseMap	Factory	null	*	*	Generating factory of the coarse map. The map generates the coarse domain map of the prolongation operator. The default choice should be fine as long as you do not wish some offset in the domain map (e.g. for block operators in multiphysics problems). The data is generated by the CoarseMapFactory.

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 MatrixFreeTentativePFactory::GetValidParameters).
The * in the requested column states that the data is requested as input with all dependencies (see MatrixFreeTentativePFactory::DeclareInput).

Variables provided by MatrixFreeTentativePFactory

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

Parameter	generated by	description
R	MatrixFreeTentativePFactory	Non-smoothed "tentative" prolongation operator (with piece-wise constant transfer operator basis functions)
Nullspace	MatrixFreeTentativePFactory	Coarse near null space vectors. Please also check the documentation of the NullspaceFactory for the special dependency tree of the "Nullspace" variable throughout all multigrid levels.