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MueLu_CGSolver_decl.hpp
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46 #ifndef MUELU_CGSOLVER_DECL_HPP
47 #define MUELU_CGSOLVER_DECL_HPP
48 
49 #include <Xpetra_Matrix_fwd.hpp>
50 #include <Xpetra_MultiVector_fwd.hpp>
51 #include <Xpetra_CrsMatrixWrap_fwd.hpp>
52 #include <Xpetra_CrsMatrixFactory_fwd.hpp>
53 
54 #include "MueLu_ConfigDefs.hpp"
55 #include "MueLu_SolverBase.hpp"
56 #include "MueLu_Constraint_fwd.hpp"
57 #include "MueLu_Utilities_fwd.hpp"
58 
59 namespace MueLu {
60 
76  template <class Scalar = DefaultScalar,
79  class Node = DefaultNode>
80  class CGSolver : public SolverBase<Scalar, LocalOrdinal, GlobalOrdinal, Node> {
81 #undef MUELU_CGSOLVER_SHORT
82 #include "MueLu_UseShortNames.hpp"
83 
84  public:
86 
87 
91  CGSolver(size_t Its);
92 
94 
96 
97 
99  void Iterate(const Matrix& A, const Constraint& C, const Matrix& P0, RCP<Matrix>& P) const;
100 
102 
103  private:
104  size_t nIts_;
105  };
106 
107 } // namespace MueLu
108 
109 #define MUELU_CGSOLVER_SHORT
110 #endif // MUELU_CGSOLVER_DECL_HPP
MueLu::DefaultLocalOrdinal LocalOrdinal
KokkosClassic::DefaultNode::DefaultNodeType DefaultNode
Implements conjugate gradient algorithm for energy-minimization.
Constraint space information for the potential prolongator.
MueLu::DefaultNode Node
void Iterate(const Matrix &A, const Constraint &C, const Matrix &P0, RCP< Matrix > &P) const
Iterate.
MueLu::DefaultScalar Scalar
MueLu::DefaultGlobalOrdinal GlobalOrdinal
size_t nIts_
Number of performed iterations.
Base class for energy-minimization iterative solvers.