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MueLu_EpetraOperator.hpp
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46 #ifndef MUELU_EPETRAOPERATOR_HPP
47 #define MUELU_EPETRAOPERATOR_HPP
48 
50 
51 #include <Epetra_Operator.h>
52 #include "MueLu_Hierarchy.hpp"
53 //TODO: Kokkos headers
54 
55 #if defined(HAVE_MUELU_SERIAL) and defined(HAVE_MUELU_EPETRA)
56 
57 namespace MueLu {
58 
63  class EpetraOperator : public Epetra_Operator {
64  typedef double SC;
65  typedef int LO;
66  typedef int GO;
67  typedef Xpetra::EpetraNode NO;
68 
69  typedef Xpetra::Matrix<SC,LO,GO,NO> Matrix;
70  typedef MueLu::Hierarchy<SC,LO,GO,NO> Hierarchy;
71  typedef MueLu::Utilities<SC,LO,GO,NO> Utils;
72 
73  public:
74 
76 
77 
79  EpetraOperator(const RCP<Hierarchy>& H) : Hierarchy_(H) { }
80 
82  virtual ~EpetraOperator() { }
83 
85 
86  int SetUseTranspose(bool /* UseTransposeBool */) { return -1; }
87 
89 
90 
92 
100  int Apply(const Epetra_MultiVector& /* X */, Epetra_MultiVector& /* Y */) const { return -1; }
101 
103 
114  int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
115 
117  /* Returns the quantity \f$ \| A \|_\infty\f$ such that
118  \f[\| A \|_\infty = \max_{1\lei\lem} \sum_{j=1}^n |a_{ij}| \f].
119 
120  \warning This method must not be called unless HasNormInf() returns true.
121  */
122  double NormInf() const { return 0; }
124 
126 
127 
129  const char * Label() const { return "MueLu::Hierarchy"; }
130 
132  bool UseTranspose() const { return false; }
133 
135  bool HasNormInf() const { return 0; }
136 
138  const Epetra_Comm & Comm() const;
139 
141  const Epetra_Map & OperatorDomainMap() const;
142 
144  const Epetra_Map & OperatorRangeMap() const;
145 
147 
149 
150 
152  RCP<Hierarchy> GetHierarchy() const { return Hierarchy_; }
153 
155 
156 
157  private:
158 
159  RCP<Hierarchy> Hierarchy_;
160 
161  };
162 
163 } // namespace
164 
165 #endif // HAVE_MUELU_EPETRA and HAVE_MUELU_SERIAL
166 
167 #endif // MUELU_EPETRAOPERATOR_HPP
Kokkos::Compat::KokkosSerialWrapperNode EpetraNode
MueLu utility class.
Provides methods to build a multigrid hierarchy and apply multigrid cycles.