Dune::Amg::AggregationLevelTransferPolicy< O, C > Class Template Reference

A LeveTransferPolicy that used aggregation to construct the coarse level system. More...

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

Public Types
typedef O	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 O	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
void	createCoarseLevelSystem (const O &fineOperator)
	Algebraically creates the coarse level system. More...
void	moveToFineLevel (typename FatherType::FineDomainType &fineLhs)
	Updates the fine level linear system after the correction of the coarse levels system. More...
AggregationLevelTransferPolicy *	clone () const
	Clone the current object.
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...

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 O, class C>
class Dune::Amg::AggregationLevelTransferPolicy< O, C >

A LeveTransferPolicy that used aggregation to construct the coarse level system.

Template Parameters

O	The type of the fine and coarse level operator.
C	The criterion that describes the aggregation procedure.

Member Function Documentation

createCoarseLevelSystem()

template<class O , class C >

void Dune::Amg::AggregationLevelTransferPolicy< O, C >::createCoarseLevelSystem ( const O &  fineOperator )

inlinevirtual

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.

Implements Dune::Amg::LevelTransferPolicy< O, O >.

References Dune::Amg::LevelTransferPolicy< O, O >::lhs_, Dune::Amg::PropertiesGraph< G, VP, EP, VM, EM >::maxVertex(), Dune::Amg::LevelTransferPolicy< O, O >::operator_, and Dune::Amg::LevelTransferPolicy< O, O >::rhs_.

getCoarseLevelLhs()

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

inlineinherited

Get the coarse level left hand side.

Returns

The coarse level leftt hand side.

getCoarseLevelOperator()

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

inlineinherited

Get the coarse level operator.

Returns

A shared pointer to the coarse level system.

getCoarseLevelRhs()

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

inlineinherited

Get the coarse level right hand side.

Returns

The coarse level right hand side.

moveToCoarseLevel()

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

pure virtualinherited

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 O , class C >

void Dune::Amg::AggregationLevelTransferPolicy< O, C >::moveToFineLevel ( typename FatherType::FineDomainType &  fineLhs )

inlinevirtual

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.

Implements Dune::Amg::LevelTransferPolicy< O, O >.

References Dune::Amg::LevelTransferPolicy< O, O >::lhs_.

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

• dune/istl/paamg/twolevelmethod.hh