DUNE-FEM (unstable)
twolevelmethod.hh
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1// SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
171 std::cout<<"no aggregates="<<noAggregates<<" iso="<<isoAggregates<<" one="<<oneAggregates<<" skipped="<<skippedAggregates<<std::endl;
194 productBuilder.calculate(fineOperator.getmat(), *aggregatesMap_, *matrix_, pinfo, OverlapFlags());
276 void apply(X& x, X& b, [[maybe_unused]] double reduction, [[maybe_unused]] InverseOperatorResult& res) override
The AMG preconditioner.
Class providing information about the mapping of the vertices onto aggregates.
Definition: aggregates.hh:560
A LeveTransferPolicy that used aggregation to construct the coarse level system.
Definition: twolevelmethod.hh:143
AggregationLevelTransferPolicy * clone() const
Clone the current object.
Definition: twolevelmethod.hh:214
void moveToFineLevel(typename FatherType::FineDomainType &fineLhs)
Updates the fine level linear system after the correction of the coarse levels system.
Definition: twolevelmethod.hh:207
void createCoarseLevelSystem(const O &fineOperator)
Algebraically creates the coarse level system.
Definition: twolevelmethod.hh:154
Class representing the properties of an edge in the matrix graph.
Definition: dependency.hh:39
Abstract base class for transfer between levels and creation of the coarse level system.
Definition: twolevelmethod.hh:38
CO CoarseOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:57
virtual void moveToCoarseLevel(const FineRangeType &fineRhs)=0
Transfers the data to the coarse level.
FineOperatorType::range_type FineRangeType
The type of the range of the fine level operator.
Definition: twolevelmethod.hh:48
virtual void createCoarseLevelSystem(const FineOperatorType &fineOperator)=0
Algebraically creates the coarse level system.
CoarseOperatorType::range_type CoarseRangeType
The type of the range of the coarse level operator.
Definition: twolevelmethod.hh:61
virtual ~LevelTransferPolicy()
Destructor.
Definition: twolevelmethod.hh:124
CoarseDomainType lhs_
The coarse level lhs.
Definition: twolevelmethod.hh:130
virtual LevelTransferPolicy * clone() const =0
Clone the current object.
CoarseDomainType & getCoarseLevelLhs()
Get the coarse level left hand side.
Definition: twolevelmethod.hh:87
std::shared_ptr< CoarseOperatorType > operator_
the coarse level linear operator.
Definition: twolevelmethod.hh:132
CoarseRangeType rhs_
The coarse level rhs.
Definition: twolevelmethod.hh:128
virtual void moveToFineLevel(FineDomainType &fineLhs)=0
Updates the fine level linear system after the correction of the coarse levels system.
std::shared_ptr< CoarseOperatorType > & getCoarseLevelOperator()
Get the coarse level operator.
Definition: twolevelmethod.hh:70
CoarseRangeType & getCoarseLevelRhs()
Get the coarse level right hand side.
Definition: twolevelmethod.hh:78
FO FineOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:44
CoarseOperatorType::domain_type CoarseDomainType
The type of the domain of the coarse level operator.
Definition: twolevelmethod.hh:65
FineOperatorType::domain_type FineDomainType
The type of the domain of the fine level operator.
Definition: twolevelmethod.hh:52
A policy class for solving the coarse level system using one step of AMG.
Definition: twolevelmethod.hh:234
OneStepAMGCoarseSolverPolicy(const SmootherArgs &args, const Criterion &c)
Constructs the coarse solver policy.
Definition: twolevelmethod.hh:253
AMGInverseOperator CoarseLevelSolver
The type of solver constructed for the coarse level.
Definition: twolevelmethod.hh:315
OneStepAMGCoarseSolverPolicy(const OneStepAMGCoarseSolverPolicy &other)
Copy constructor.
Definition: twolevelmethod.hh:257
O::range_type X
The type of the range and domain of the operator.
Definition: twolevelmethod.hh:239
C Criterion
The type of the crition used for the aggregation within AMG.
Definition: twolevelmethod.hh:241
Dune::Amg::SmootherTraits< S >::Arguments SmootherArgs
The type of the arguments used for constructing the smoother.
Definition: twolevelmethod.hh:245
O Operator
The type of the linear operator used.
Definition: twolevelmethod.hh:237
AMG< Operator, X, Smoother > AMGType
The type of the AMG construct on the coarse level.
Definition: twolevelmethod.hh:247
CoarseLevelSolver * createCoarseLevelSolver(P &transferPolicy)
Constructs a coarse level solver.
Definition: twolevelmethod.hh:325
S Smoother
The type of the smoother used in AMG.
Definition: twolevelmethod.hh:243
Attaches properties to the edges and vertices of a graph.
Definition: graph.hh:978
VertexDescriptor maxVertex() const
Get the maximal vertex descriptor.
Definition: twolevelmethod.hh:353
CoarseOperatorType::range_type CoarseRangeType
The type of the range of the coarse level operator.
Definition: twolevelmethod.hh:380
FineOperatorType::domain_type FineDomainType
The type of the domain of the fine level operator.
Definition: twolevelmethod.hh:371
FO FineOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:363
CoarseLevelSolverPolicy::CoarseLevelSolver CoarseLevelSolver
The type of the coarse level solver.
Definition: twolevelmethod.hh:358
CSP CoarseLevelSolverPolicy
The type of the policy for constructing the coarse level solver.
Definition: twolevelmethod.hh:356
CoarseOperatorType::domain_type CoarseDomainType
The type of the domain of the coarse level operator.
Definition: twolevelmethod.hh:384
TwoLevelMethod(const FineOperatorType &op, std::shared_ptr< SmootherType > smoother, const LevelTransferPolicy< FineOperatorType, CoarseOperatorType > &policy, CoarseLevelSolverPolicy &coarsePolicy, std::size_t preSteps=1, std::size_t postSteps=1)
Constructs a two level method.
Definition: twolevelmethod.hh:404
SolverCategory::Category category() const override
Category of the preconditioner (see SolverCategory::Category)
Definition: twolevelmethod.hh:466
FineOperatorType::range_type FineRangeType
The type of the range of the fine level operator.
Definition: twolevelmethod.hh:367
CSP::Operator CoarseOperatorType
The linear operator of the finel level system. Has to be derived from AssembledLinearOperator.
Definition: twolevelmethod.hh:376
S SmootherType
The type of the fine level smoother.
Definition: twolevelmethod.hh:388
Class representing a node in the matrix graph.
Definition: dependency.hh:126
virtual void apply(X &x, X &b, InverseOperatorResult &res)=0
Apply inverse operator,.
Adapter to turn a random access iterator into a property map.
Definition: propertymap.hh:108
The negation of a set. An item is contained in the set if and only if it is not contained in the nega...
Definition: enumset.hh:96
Base class for matrix free definition of preconditioners.
Definition: preconditioner.hh:33
Provides a class for building the galerkin product based on a aggregation scheme.
SmootherTraits< Smoother >::Arguments SmootherArgs
The argument type for the construction of the smoother.
Definition: amg.hh:101
Operator Operator
The matrix operator type.
Definition: amg.hh:74
void presmooth(LevelContext &levelContext, size_t steps)
Apply pre smoothing on the current level.
Definition: smoother.hh:406
void postsmooth(LevelContext &levelContext, size_t steps)
Apply post smoothing on the current level.
Definition: smoother.hh:428
Define general, extensible interface for operators. The available implementation wraps a matrix.
Define general, extensible interface for inverse operators.
The default class for the smoother arguments.
Definition: smoother.hh:38
A property map that applies the identity function to integers.
Definition: propertymap.hh:293
Statistics about the application of an inverse operator.
Definition: solver.hh:50
@ sequential
Category for sequential solvers.
Definition: solvercategory.hh:25
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