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MueLu_CoalesceDropFactory_decl.hpp
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46 #ifndef MUELU_COALESCEDROPFACTORY_DECL_HPP
47 #define MUELU_COALESCEDROPFACTORY_DECL_HPP
48 
49 #include <Xpetra_Matrix_fwd.hpp>
52 #include <Xpetra_Vector_fwd.hpp>
55 #include <Xpetra_CrsGraph_fwd.hpp>
56 #include <Xpetra_CrsGraphFactory.hpp> //TODO
58 #include <Xpetra_Map_fwd.hpp>
59 
60 #include "MueLu_ConfigDefs.hpp"
63 #include "MueLu_Utilities_fwd.hpp"
64 
65 #include "MueLu_Level_fwd.hpp"
66 #include "MueLu_GraphBase.hpp"
67 #include "MueLu_Graph_fwd.hpp"
68 #include "MueLu_LWGraph_fwd.hpp"
73 
74 namespace MueLu {
75 
131  template <class Scalar = double,
132  class LocalOrdinal = int,
133  class GlobalOrdinal = LocalOrdinal,
136 #undef MUELU_COALESCEDROPFACTORY_SHORT
137 #include "MueLu_UseShortNames.hpp"
138 
139  public:
140 
142 
143 
146 
148  virtual ~CoalesceDropFactory() { }
149 
151 
153 
155 
156 
157  void DeclareInput(Level &currentLevel) const;
158 
161 
163 
164  void Build(Level &currentLevel) const; // Build
165 
166  private:
167 
168  // pre-drop function
169  mutable
171 
173  void MergeRows(const Matrix& A, const LO row, Array<LO>& cols, const Array<LO>& translation) const;
174  void MergeRowsWithDropping(const Matrix& A, const LO row, const ArrayRCP<const SC>& ghostedDiagVals, SC threshold, Array<LO>& cols, const Array<LO>& translation) const;
175  }; //class CoalesceDropFactory
176 
177 } //namespace MueLu
178 
179 #define MUELU_COALESCEDROPFACTORY_SHORT
180 #endif // MUELU_COALESCEDROPFACTORY_DECL_HPP
RCP< const ParameterList > GetValidParameterList() const
Return a const parameter list of valid parameters that setParameterList() will accept.
RCP< PreDropFunctionBaseClass > predrop_
LocalOrdinal LO
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
void Build(Level &currentLevel) const
Build an object with this factory.
void DeclareInput(Level &currentLevel) const
Input.
void SetPreDropFunction(const RCP< MueLu::PreDropFunctionBaseClass< Scalar, LocalOrdinal, GlobalOrdinal, Node > > &predrop)
set predrop function
void MergeRows(const Matrix &A, const LO row, Array< LO > &cols, const Array< LO > &translation) const
Method to merge rows of matrix for systems of PDEs.
Factory for creating a graph base on a given matrix.
Scalar SC
void MergeRowsWithDropping(const Matrix &A, const LO row, const ArrayRCP< const SC > &ghostedDiagVals, SC threshold, Array< LO > &cols, const Array< LO > &translation) const
Base class for factories that use one level (currentLevel).