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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_BlockedMap.hpp>
55 #include <Xpetra_Matrix.hpp>
56 #include <Xpetra_CrsMatrixWrap.hpp>
59 
61 #include "MueLu_Hierarchy.hpp"
62 #include "MueLu_Utilities.hpp"
63 
64 
65 namespace MueLu {
66 
67 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
73 
74  RCP<Matrix> A = Hierarchy_->GetLevel(0)->template Get<RCP<Matrix> >("A");
75  RCP<const Map> domainMap = A->getDomainMap();
76  RCP<const BlockedMap> bDomainMap = Teuchos::rcp_dynamic_cast<const BlockedMap>(domainMap);
77  if(bDomainMap.is_null() == false) {
78  return Xpetra::toTpetraNonZero(bDomainMap->getFullMap());
79  }
80  return Xpetra::toTpetraNonZero(A->getDomainMap());
81 }
82 
83 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
88 
89  RCP<Matrix> A = Hierarchy_->GetLevel(0)->template Get<RCP<Matrix> >("A");
90  RCP<const Map> rangeMap = A->getRangeMap();
91  RCP<const BlockedMap> bRangeMap = Teuchos::rcp_dynamic_cast<const BlockedMap>(rangeMap);
92  if(bRangeMap.is_null() == false) {
93  return Xpetra::toTpetraNonZero(bRangeMap->getFullMap());
94  }
95  return Xpetra::toTpetraNonZero(A->getRangeMap());
96 }
97 
98 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
99 void TpetraOperator<Scalar,LocalOrdinal,GlobalOrdinal,Node>::apply(const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& X,
100  Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& Y,
101  Teuchos::ETransp mode, Scalar alpha, Scalar beta) const {
102  typedef Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
104 
105  try {
106  TMV& temp_x = const_cast<TMV &>(X);
107  const XTMV tX(rcpFromRef(temp_x));
108  XTMV tY(rcpFromRef(Y));
109 
110  tY.putScalar(Teuchos::ScalarTraits<Scalar>::zero());
111  Hierarchy_->Iterate(tX, tY, 1, true);
112 
113  } catch (std::exception& e) {
114  std::cerr << "MueLu::TpetraOperator::apply : detected an exception" << std::endl
115  << e.what() << std::endl;
116  throw;
117  }
118 }
119 
120 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
122  return false;
123 }
124 
125 template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
128  return Hierarchy_;
129 }
130 
131 } // namespace
132 #endif //ifdef HAVE_MUELU_TPETRA
133 
134 #endif //ifdef MUELU_TPETRAOPERATOR_DEF_HPP
Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getDomainMap() const
Returns the Tpetra::Map object associated with the domain of this operator.
const RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > toTpetraNonZero(const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map)
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.
bool is_null() const
RCP< MueLu::Hierarchy< Scalar, LocalOrdinal, GlobalOrdinal, Node > > GetHierarchy() const
Direct access to the underlying MueLu::Hierarchy.
bool hasTransposeApply() const
Indicates whether this operator supports applying the adjoint operator.
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. ...