Dune::Amg::LevelTransferPolicy< FO, CO > Class Template Reference

Abstract base class for transfer between levels and creation of the coarse level system. More...

#include <dune/istl/paamg/twolevelmethod.hh>

Public Types
typedef FO	FineOperatorType
	The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
typedef FineOperatorType::range_type	FineRangeType
	The type of the range of the fine level operator.
typedef FineOperatorType::domain_type	FineDomainType
	The type of the domain of the fine level operator.
typedef CO	CoarseOperatorType
	The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
typedef CoarseOperatorType::range_type	CoarseRangeType
	The type of the range of the coarse level operator.
typedef CoarseOperatorType::domain_type	CoarseDomainType
	The type of the domain of the coarse level operator.

Public Member Functions
std::shared_ptr< CoarseOperatorType > &	getCoarseLevelOperator ()
	Get the coarse level operator. More...
CoarseRangeType &	getCoarseLevelRhs ()
	Get the coarse level right hand side. More...
CoarseDomainType &	getCoarseLevelLhs ()
	Get the coarse level left hand side. More...
virtual void	moveToCoarseLevel (const FineRangeType &fineRhs)=0
	Transfers the data to the coarse level. More...
virtual void	moveToFineLevel (FineDomainType &fineLhs)=0
	Updates the fine level linear system after the correction of the coarse levels system. More...
virtual void	createCoarseLevelSystem (const FineOperatorType &fineOperator)=0
	Algebraically creates the coarse level system. More...
virtual LevelTransferPolicy *	clone () const =0
	Clone the current object.
virtual	~LevelTransferPolicy ()
	Destructor.

Protected Attributes
CoarseRangeType	rhs_
	The coarse level rhs.
CoarseDomainType	lhs_
	The coarse level lhs.
std::shared_ptr< CoarseOperatorType >	operator_
	the coarse level linear operator.

Detailed Description

template<class FO, class CO>
class Dune::Amg::LevelTransferPolicy< FO, CO >

Abstract base class for transfer between levels and creation of the coarse level system.

Template Parameters

FO	The type of the linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
CO	The type of the linear operator of the coarse level system. Has to be derived from AssembledLinearOperator.

Member Function Documentation

createCoarseLevelSystem()

template<class FO , class CO >

virtual void Dune::Amg::LevelTransferPolicy< FO, CO >::createCoarseLevelSystem ( const FineOperatorType &  fineOperator )

pure virtual

Algebraically creates the coarse level system.

After returning from this function the coarse level operator can be accessed using getCoarseLevelOperator().

Parameters

fineOperator

The operator of the fine level system.

Implemented in Dune::Amg::AggregationLevelTransferPolicy< O, C >.

Referenced by Dune::Amg::TwoLevelMethod< FO, CSP, S >::TwoLevelMethod().

getCoarseLevelLhs()

template<class FO , class CO >

CoarseDomainType & Dune::Amg::LevelTransferPolicy< FO, CO >::getCoarseLevelLhs ( )

inline

Get the coarse level left hand side.

Returns

The coarse level leftt hand side.

References Dune::Amg::LevelTransferPolicy< FO, CO >::lhs_.

getCoarseLevelOperator()

template<class FO , class CO >

std::shared_ptr< CoarseOperatorType > & Dune::Amg::LevelTransferPolicy< FO, CO >::getCoarseLevelOperator ( )

inline

Get the coarse level operator.

Returns

A shared pointer to the coarse level system.

References Dune::Amg::LevelTransferPolicy< FO, CO >::operator_.

getCoarseLevelRhs()

template<class FO , class CO >

CoarseRangeType & Dune::Amg::LevelTransferPolicy< FO, CO >::getCoarseLevelRhs ( )

inline

Get the coarse level right hand side.

Returns

The coarse level right hand side.

References Dune::Amg::LevelTransferPolicy< FO, CO >::rhs_.

moveToCoarseLevel()

template<class FO , class CO >

virtual void Dune::Amg::LevelTransferPolicy< FO, CO >::moveToCoarseLevel ( const FineRangeType &  fineRhs )

pure virtual

Transfers the data to the coarse level.

Restricts the residual to the right hand side of the coarse level system and initialies the left hand side of the coarse level system. These can afterwards be accessed usinf getCoarseLevelRhs() and getCoarseLevelLhs().

Parameters

fineDefect

The current residual of the fine level system.

moveToFineLevel()

template<class FO , class CO >

virtual void Dune::Amg::LevelTransferPolicy< FO, CO >::moveToFineLevel ( FineDomainType &  fineLhs )

pure virtual

Updates the fine level linear system after the correction of the coarse levels system.

After returning from this function the coarse level correction will have been added to fine level system.

Parameters

[in,out]

fineLhs

The left hand side of the fine level to update with the coarse level correction.

Implemented in Dune::Amg::AggregationLevelTransferPolicy< O, C >.

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

• dune/istl/paamg/twolevelmethod.hh