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MueLu_TpetraOperator_def.hpp
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5// MueLu: A package for multigrid based preconditioning
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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>
57#include <Xpetra_BlockedCrsMatrix.hpp>
58#include <Xpetra_Operator.hpp>
59#include <Xpetra_TpetraMultiVector.hpp>
60
62#include "MueLu_Hierarchy.hpp"
63#include "MueLu_Utilities.hpp"
64
65
66namespace MueLu {
67
68template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
69Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
71 typedef Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> Matrix;
72 typedef Xpetra::Map<LocalOrdinal, GlobalOrdinal, Node> Map;
73 typedef Xpetra::BlockedMap<LocalOrdinal, GlobalOrdinal, Node> BlockedMap;
74
75 RCP<const Map> domainMap;
76 if(!Hierarchy_.is_null()) domainMap = Hierarchy_->GetLevel(0)->template Get<RCP<Matrix> >("A")->getDomainMap();
77 else domainMap = Operator_->getDomainMap();
78
79
80 RCP<const BlockedMap> bDomainMap = Teuchos::rcp_dynamic_cast<const BlockedMap>(domainMap);
81 if(bDomainMap.is_null() == false) {
82 return Xpetra::toTpetraNonZero(bDomainMap->getFullMap());
83 }
84 return Xpetra::toTpetraNonZero(domainMap);
86
87template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
88Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > TpetraOperator<Scalar,LocalOrdinal,GlobalOrdinal,Node>::getRangeMap() const {
89 typedef Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> Matrix;
90 typedef Xpetra::Map<LocalOrdinal, GlobalOrdinal, Node> Map;
91 typedef Xpetra::BlockedMap<LocalOrdinal, GlobalOrdinal, Node> BlockedMap;
92
93
94 RCP<const Map> rangeMap;
95 if(!Hierarchy_.is_null()) rangeMap = Hierarchy_->GetLevel(0)->template Get<RCP<Matrix> >("A")->getRangeMap();
96 else rangeMap = Operator_->getRangeMap();
97
98 RCP<const BlockedMap> bRangeMap = Teuchos::rcp_dynamic_cast<const BlockedMap>(rangeMap);
99 if(bRangeMap.is_null() == false) {
100 return Xpetra::toTpetraNonZero(bRangeMap->getFullMap());
101 }
102 return Xpetra::toTpetraNonZero(rangeMap);
103}
104
105template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
106void TpetraOperator<Scalar,LocalOrdinal,GlobalOrdinal,Node>::apply(const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& X,
107 Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>& Y,
108 Teuchos::ETransp mode, Scalar /* alpha */, Scalar /* beta */) const {
109 typedef Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
110 typedef Xpetra::TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> XTMV;
112 TEUCHOS_TEST_FOR_EXCEPTION(mode!=Teuchos::NO_TRANS,std::logic_error,"MueLu::TpetraOperator does not support applying the adjoint operator");
113
114 try {
115 TMV& temp_x = const_cast<TMV &>(X);
116 const XTMV tX(rcpFromRef(temp_x));
117 XTMV tY(rcpFromRef(Y));
118
119 if(!Hierarchy_.is_null())
120 Hierarchy_->Iterate(tX, tY, 1, true);
121 else
122 Operator_->apply(tX, tY);
123
124 } catch (std::exception& e) {
125 std::cerr << "MueLu::TpetraOperator::apply : detected an exception" << std::endl
126 << e.what() << std::endl;
127 throw;
128 }
129}
130
131template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
135
136template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
137RCP<MueLu::Hierarchy<Scalar, LocalOrdinal, GlobalOrdinal, Node> >
141
142template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
143RCP<Xpetra::Operator<Scalar, LocalOrdinal, GlobalOrdinal, Node> >
147
148} // namespace
149#endif //ifdef HAVE_MUELU_TPETRA
150
151#endif //ifdef MUELU_TPETRAOPERATOR_DEF_HPP
MueLu::DefaultScalar Scalar
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.
Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getRangeMap() const
Returns the Tpetra::Map object associated with the range of this operator.
RCP< Xpetra::Operator< Scalar, LocalOrdinal, GlobalOrdinal, Node > > GetOperator() const
Direct access to the underlying MueLu::Operator.
bool hasTransposeApply() const
Indicates whether this operator supports applying the adjoint operator.
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.
Namespace for MueLu classes and methods.