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MueLu_UzawaSmoother_decl.hpp
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46
47#ifndef MUELU_UZAWASMOOTHER_DECL_HPP_
48#define MUELU_UZAWASMOOTHER_DECL_HPP_
49
50
51#include "MueLu_ConfigDefs.hpp"
52
53#include <Teuchos_ParameterList.hpp>
54
55//Xpetra
56#include <Xpetra_MapExtractor_fwd.hpp>
57#include <Xpetra_MultiVectorFactory_fwd.hpp>
58#include <Xpetra_CrsMatrixWrap_fwd.hpp>
59#include <Xpetra_Matrix_fwd.hpp>
60
61//MueLu
63#include "MueLu_SmootherPrototype.hpp"
69
74
75namespace MueLu {
76
83 template <class Scalar = SmootherPrototype<>::scalar_type,
87 class UzawaSmoother : public SmootherPrototype<Scalar,LocalOrdinal,GlobalOrdinal,Node>
88 {
89 typedef Xpetra::MapExtractor<Scalar, LocalOrdinal, GlobalOrdinal, Node> MapExtractorClass;
90
91#undef MUELU_UZAWASMOOTHER_SHORT
93
94 public:
95
97
98
99 RCP<const ParameterList> GetValidParameterList() const;
100
101 void DeclareInput(Level &currentLevel) const;
102
107 void SetVelocityPredictionFactoryManager(RCP<FactoryManager> FactManager);
108
113 void SetSchurCompFactoryManager(RCP<FactoryManager> FactManager);
114
119 void AddFactoryManager(RCP<const FactoryManagerBase> FactManager, int pos);
120
122
124
125
128 void Setup(Level &currentLevel);
129
135 void Apply(MultiVector &X, MultiVector const &B, bool InitialGuessIsZero = false) const;
137
138 RCP<SmootherPrototype> Copy() const;
139
141
142
144 std::string description() const;
145
147 //using MueLu::Describable::describe; // overloading, not hiding
148 void print(Teuchos::FancyOStream &out, const VerbLevel verbLevel = Default) const;
149
151 size_t getNodeSmootherComplexity() const;
152
154
155 private:
156
158 std::string type_ = "Uzawa";
159
160 RCP<const FactoryBase> AFact_;
161
163 RCP<Matrix> A_ = Teuchos::null; //<! internal blocked operator "A" generated by AFact_
164
165 RCP<const MapExtractorClass> rangeMapExtractor_;
166 RCP<const MapExtractorClass> domainMapExtractor_;
167
169 Teuchos::RCP<Vector> diagFinv_;
170 Teuchos::RCP<Matrix> F_;
171 Teuchos::RCP<Matrix> G_;
172 Teuchos::RCP<Matrix> D_;
173 Teuchos::RCP<Matrix> Z_;
174
175 Teuchos::RCP<SmootherBase> velPredictSmoo_;
176 Teuchos::RCP<SmootherBase> schurCompSmoo_;
177
184 std::vector<Teuchos::RCP<const FactoryManagerBase> > FactManager_;
185
186 }; // class UzawaSmoother
187
188} // namespace MueLu
189
190#define MUELU_UZAWASMOOTHER_SHORT
191
192#endif /* MUELU_UZAWASMOOTHER_DECL_HPP_ */
MueLu::DefaultLocalOrdinal LocalOrdinal
MueLu::DefaultGlobalOrdinal GlobalOrdinal
MueLu::DefaultNode Node
Class that holds all level-specific information.
Base class for smoother prototypes.
Block triangle Uzawa smoother for 2x2 block matrices.
RCP< Matrix > A_
block operator
RCP< SmootherPrototype > Copy() const
void Setup(Level &currentLevel)
Setup routine.
std::vector< Teuchos::RCP< const FactoryManagerBase > > FactManager_
Vector of internal factory managers.
RCP< const ParameterList > GetValidParameterList() const
Input.
Teuchos::RCP< Matrix > D_
divergence operator
void AddFactoryManager(RCP< const FactoryManagerBase > FactManager, int pos)
Add a factory manager at a specific position.
void Apply(MultiVector &X, MultiVector const &B, bool InitialGuessIsZero=false) const
Apply the Braess Sarazin smoother.
Teuchos::RCP< Matrix > Z_
pressure stabilization term or null block
std::string description() const
Return a simple one-line description of this object.
Teuchos::RCP< SmootherBase > velPredictSmoo_
smoother for velocity prediction
void SetSchurCompFactoryManager(RCP< FactoryManager > FactManager)
Set factory manager for internal SchurComplement handling.
Teuchos::RCP< SmootherBase > schurCompSmoo_
smoother for SchurComplement equation
std::string type_
smoother type
RCP< const MapExtractorClass > domainMapExtractor_
domain map extractor (from A_ generated by AFact)
Teuchos::RCP< Matrix > G_
pressure gradient operator
void print(Teuchos::FancyOStream &out, const VerbLevel verbLevel=Default) const
Print the object with some verbosity level to an FancyOStream object.
void DeclareInput(Level &currentLevel) const
Input.
size_t getNodeSmootherComplexity() const
Get a rough estimate of cost per iteration.
void SetVelocityPredictionFactoryManager(RCP< FactoryManager > FactManager)
Set factory manager for internal velocity prediction.
RCP< const FactoryBase > AFact_
A Factory.
Xpetra::MapExtractor< Scalar, LocalOrdinal, GlobalOrdinal, Node > MapExtractorClass
Teuchos::RCP< Matrix > F_
fluid operator
Teuchos::RCP< Vector > diagFinv_
matrices
RCP< const MapExtractorClass > rangeMapExtractor_
range map extractor (from A_ generated by AFact)
Namespace for MueLu classes and methods.