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MueLu_TpetraOperator_def.hpp
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46 
47 #ifndef MUELU_TPETRAOPERATOR_DEF_HPP
48 #define MUELU_TPETRAOPERATOR_DEF_HPP
49 
50 #include "MueLu_ConfigDefs.hpp"
51 
52 #ifdef HAVE_MUELU_TPETRA
53 
54 #include <Xpetra_Matrix.hpp>
55 #include <Xpetra_CrsMatrixWrap.hpp>
56 #include <Xpetra_BlockedCrsMatrix.hpp>
57 #include <Xpetra_TpetraMultiVector.hpp>
58 
60 #include "MueLu_Hierarchy.hpp"
61 #include "MueLu_Utilities.hpp"
62 
63 
64 namespace MueLu {
65 
66 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
67 Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
69  typedef Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> Matrix;
70 
71  RCP<Matrix> A = Hierarchy_->GetLevel(0)->template Get<RCP<Matrix> >("A");
72  return Xpetra::toTpetraNonZero(A->getDomainMap());
73 }
74 
75 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
76 Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > TpetraOperator<Scalar,LocalOrdinal,GlobalOrdinal,Node>::getRangeMap() const {
77  typedef Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> Matrix;
78 
79  RCP<Matrix> A = Hierarchy_->GetLevel(0)->template Get<RCP<Matrix> >("A");
80  return Xpetra::toTpetraNonZero(A->getRangeMap());
81 }
82 
83 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
84 void TpetraOperator<Scalar,LocalOrdinal,GlobalOrdinal,Node>::apply(const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& X,
85  Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& Y,
86  Teuchos::ETransp mode, Scalar alpha, Scalar beta) const {
87  typedef Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
88  typedef Xpetra::TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> XTMV;
89 
90  try {
91  TMV& temp_x = const_cast<TMV &>(X);
92  const XTMV tX(rcpFromRef(temp_x));
93  XTMV tY(rcpFromRef(Y));
94 
95  tY.putScalar(Teuchos::ScalarTraits<Scalar>::zero());
96  Hierarchy_->Iterate(tX, tY, 1, true);
97 
98  } catch (std::exception& e) {
99  //FIXME add message and rethrow
100  std::cerr << "Caught an exception in MueLu::TpetraOperator::ApplyInverse():" << std::endl
101  << e.what() << std::endl;
102  }
103 }
104 
105 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
107  return false;
108 }
109 
110 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
111 RCP<MueLu::Hierarchy<Scalar, LocalOrdinal, GlobalOrdinal, Node> >
113  return Hierarchy_;
114 }
115 
116 } // namespace
117 #endif //ifdef HAVE_MUELU_TPETRA
118 
119 #endif //ifdef MUELU_TPETRAOPERATOR_DEF_HPP
bool hasTransposeApply() const
Indicates whether this operator supports applying the adjoint operator.
Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getRangeMap() const
Returns the Tpetra::Map object associated with the range of this operator.
Namespace for MueLu classes and methods.
Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getDomainMap() const
Returns the Tpetra::Map object associated with the domain of this operator.
RCP< MueLu::Hierarchy< Scalar, LocalOrdinal, GlobalOrdinal, Node > > GetHierarchy() const
Direct access to the underlying MueLu::Hierarchy.
void apply(const Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &X, Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &Y, Teuchos::ETransp mode=Teuchos::NO_TRANS, Scalar alpha=Teuchos::ScalarTraits< Scalar >::one(), Scalar beta=Teuchos::ScalarTraits< Scalar >::one()) const
Returns in Y the result of a Tpetra::Operator applied to a Tpetra::MultiVector X. ...