dune-pdelab 2.7-git
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#include <dune/pdelab/backend/istl/seq_amg_dg_backend.hh>
Public Types | |
typedef DGPrec::domain_type | X |
typedef DGPrec::range_type | Y |
typedef CGPrec::domain_type | CGX |
typedef CGPrec::range_type | CGY |
Public Member Functions | |
SolverCategory::Category | category () const override |
SeqDGAMGPrec (DGMatrix &dgmatrix_, DGPrec &dgprec_, CGPrec &cgprec_, P &p_, int n1_, int n2_) | |
Constructor. | |
virtual void | pre (X &x, Y &b) override |
Prepare the preconditioner. | |
virtual void | apply (X &x, const Y &b) override |
Apply the precondioner. | |
virtual void | post (X &x) override |
Clean up. | |
An ISTL preconditioner for DG based on AMG applied to CG subspace
The template parameters are: DGMatrix BCRSMatrix assembled with DG DGPrec preconditioner to be used for DG CGPrec preconditioner to be used on CG subspace P BCRSMatrix for grid transfer
typedef CGPrec::domain_type Dune::PDELab::SeqDGAMGPrec< DGMatrix, DGPrec, CGPrec, P >::CGX |
typedef CGPrec::range_type Dune::PDELab::SeqDGAMGPrec< DGMatrix, DGPrec, CGPrec, P >::CGY |
typedef DGPrec::domain_type Dune::PDELab::SeqDGAMGPrec< DGMatrix, DGPrec, CGPrec, P >::X |
typedef DGPrec::range_type Dune::PDELab::SeqDGAMGPrec< DGMatrix, DGPrec, CGPrec, P >::Y |
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inline |
Constructor.
Constructor gets all parameters to operate the prec.
A | The matrix to operate on. |
n | The number of iterations to perform. |
w | The relaxation factor. |
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inlineoverridevirtual |
Apply the precondioner.
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inlineoverride |
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inlineoverridevirtual |
Clean up.
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inlineoverridevirtual |
Prepare the preconditioner.