DUNE-FEM (unstable)
kamg.hh
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1// SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
272 ksolvers.push_back(std::shared_ptr<KAmgTwoGrid<Amg> >(new KAmgTwoGrid<Amg>(amg, std::shared_ptr<InverseOperator<Domain,Range> >())));
280 std::shared_ptr<InverseOperator<Domain,Range> >(new KrylovSolver(*matrix, *(scalarproducts.back()),
The AMG preconditioner.
LevelIterator< Hierarchy< ParallelInformation, Allocator >, ParallelInformation > Iterator
Type of the mutable iterator.
Definition: hierarchy.hh:220
Amg::SmootherArgs SmootherArgs
The type of the arguments for construction of the smoothers.
Definition: kamg.hh:153
Amg::ParallelInformation ParallelInformation
the type of the parallelinformation to use.
Definition: kamg.hh:151
Amg::CoarseSolver CoarseSolver
The type of the coarse solver.
Definition: kamg.hh:149
Amg::OperatorHierarchy OperatorHierarchy
The type of the hierarchy of operators.
Definition: kamg.hh:147
Amg::ScalarProduct ScalarProduct
The type of the scalar product.
Definition: kamg.hh:163
Amg::Operator Operator
the type of the lineatr operator.
Definition: kamg.hh:155
Amg::ParallelInformationHierarchy ParallelInformationHierarchy
The type of the hierarchy of parallel information.
Definition: kamg.hh:161
virtual SolverCategory::Category category() const
Category of the preconditioner (see SolverCategory::Category)
Definition: kamg.hh:166
K KrylovSolver
The type of the Krylov solver for the cycle.
Definition: kamg.hh:145
void pre(typename AMG::Domain &x, typename AMG::Range &b)
Prepare the preconditioner.
Definition: kamg.hh:58
KAmgTwoGrid(AMG &amg, std::shared_ptr< InverseOperator< Domain, Range > > coarseSolver)
Constructor.
Definition: kamg.hh:53
virtual SolverCategory::Category category() const
Category of the preconditioner (see SolverCategory::Category)
Definition: kamg.hh:41
void setLevelContext(std::shared_ptr< typename AMG::LevelContext > p)
Set the level context pointer.
Definition: kamg.hh:104
InverseOperator< Domain, Range > * coarseSolver()
Get a pointer to the coarse grid solver.
Definition: kamg.hh:95
void apply(typename AMG::Domain &v, const typename AMG::Range &d)
Apply one step of the preconditioner to the system A(v)=d.
Definition: kamg.hh:66
The hierarchies build by the coarsening process.
Definition: matrixhierarchy.hh:61
Generalized preconditioned conjugate gradient solver.
Definition: solvers.hh:1307
An abstract operator Interface class for Operators. Operators are applied to Functions and the result...
Definition: operator.hh:238
Base class for matrix free definition of preconditioners.
Definition: preconditioner.hh:33
Base class for scalar product and norm computation.
Definition: scalarproducts.hh:52
void apply(Domain &v, const Range &d)
Apply one step of the preconditioner to the system A(v)=d.
Definition: kamg.hh:300
KAMG(OperatorHierarchy &matrices, CoarseSolver &coarseSolver, const SmootherArgs &smootherArgs, const Parameters &parms, std::size_t maxLevelKrylovSteps=3, double minDefectReduction=1e-1)
Construct a new amg with a specific coarse solver.
Definition: kamg.hh:233
SmootherTraits< Smoother >::Arguments SmootherArgs
The argument type for the construction of the smoother.
Definition: amg.hh:101
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
virtual SolverCategory::Category category() const
Category of the preconditioner (see SolverCategory::Category)
Definition: amg.hh:195
PI ParallelInformation
The type of the parallel information. Either OwnerOverlapCommunication or another type describing the...
Definition: amg.hh:81
Define general preconditioner interface.
Statistics about the application of an inverse operator.
Definition: solver.hh:50
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