43 #ifndef IFPACK2_SPARSITYFILTER_DECL_HPP 44 #define IFPACK2_SPARSITYFILTER_DECL_HPP 46 #include "Ifpack2_ConfigDefs.hpp" 47 #include "Ifpack2_Details_RowMatrix.hpp" 48 #include "Teuchos_ScalarTraits.hpp" 81 template<
class MatrixType>
85 typedef typename MatrixType::scalar_type Scalar;
86 typedef typename MatrixType::local_ordinal_type LocalOrdinal;
87 typedef typename MatrixType::global_ordinal_type GlobalOrdinal;
88 typedef typename MatrixType::node_type Node;
89 typedef typename Teuchos::ScalarTraits<Scalar>::magnitudeType magnitudeType;
90 typedef Tpetra::RowMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> row_matrix_type;
91 typedef typename row_matrix_type::mag_type mag_type;
93 static_assert(std::is_same<MatrixType, row_matrix_type>::value,
"Ifpack2::SparsityFilter: The template parameter MatrixType must be a Tpetra::RowMatrix specialization. Please don't use Tpetra::CrsMatrix (a subclass of Tpetra::RowMatrix) here anymore.");
100 explicit SparsityFilter (
const Teuchos::RCP<const row_matrix_type>& Matrix,
101 size_t AllowedNumEntries,
102 LocalOrdinal AllowedBandwidth = -Teuchos::ScalarTraits<LocalOrdinal>::one());
111 virtual Teuchos::RCP<const Teuchos::Comm<int> >
getComm()
const;
115 virtual Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
getRowMap()
const;
118 virtual Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
getColMap()
const;
121 virtual Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
getDomainMap()
const;
124 virtual Teuchos::RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
getRangeMap()
const;
127 virtual Teuchos::RCP<const Tpetra::RowGraph<LocalOrdinal,GlobalOrdinal,Node> >
getGraph()
const;
196 const Teuchos::ArrayView<GlobalOrdinal> &Indices,
197 const Teuchos::ArrayView<Scalar> &Values,
198 size_t &NumEntries)
const;
212 const Teuchos::ArrayView<LocalOrdinal> &Indices,
213 const Teuchos::ArrayView<Scalar> &Values,
214 size_t &NumEntries)
const ;
227 Teuchos::ArrayView<const GlobalOrdinal> &indices,
228 Teuchos::ArrayView<const Scalar> &values)
const;
241 Teuchos::ArrayView<const LocalOrdinal> &indices,
242 Teuchos::ArrayView<const Scalar> &values)
const;
247 virtual void getLocalDiagCopy(Tpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &diag)
const;
263 virtual void leftScale(
const Tpetra::Vector<Scalar, LocalOrdinal, GlobalOrdinal, Node>& x);
274 virtual void rightScale(
const Tpetra::Vector<Scalar, LocalOrdinal, GlobalOrdinal, Node>& x);
288 virtual void apply(
const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &X,
289 Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &Y,
290 Teuchos::ETransp mode = Teuchos::NO_TRANS,
291 Scalar alpha = Teuchos::ScalarTraits<Scalar>::one(),
292 Scalar beta = Teuchos::ScalarTraits<Scalar>::zero())
const;
301 Teuchos::RCP<const Tpetra::RowMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node> > A_;
304 size_t AllowedNumEntries_;
306 LocalOrdinal AllowedBandwidth_;
312 size_t MaxNumEntries_;
314 size_t MaxNumEntriesA_;
316 std::vector<size_t> NumEntries_;
318 mutable Teuchos::Array<LocalOrdinal> Indices_;
320 mutable Teuchos::Array<Scalar> Values_;
virtual void getLocalDiagCopy(Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &diag) const
Get a copy of the diagonal entries owned by this node, with local row indices.
Definition: Ifpack2_SparsityFilter_def.hpp:364
virtual size_t getNodeNumCols() const
Returns the number of columns needed to apply the forward operator on this node, i.e., the number of elements listed in the column map.
Definition: Ifpack2_SparsityFilter_def.hpp:193
virtual size_t getGlobalMaxNumRowEntries() const
Returns the maximum number of entries across all rows/columns on all nodes.
Definition: Ifpack2_SparsityFilter_def.hpp:235
All Ifpack2 implementations of Tpetra::RowMatrix must inherit from this class.
Definition: Ifpack2_Details_RowMatrix.hpp:63
virtual global_size_t getGlobalNumRows() const
Returns the number of global rows in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:171
virtual void getGlobalRowCopy(GlobalOrdinal GlobalRow, const Teuchos::ArrayView< GlobalOrdinal > &Indices, const Teuchos::ArrayView< Scalar > &Values, size_t &NumEntries) const
Extract a list of entries in a specified global row of this matrix. Put into pre-allocated storage...
Definition: Ifpack2_SparsityFilter_def.hpp:277
virtual bool supportsRowViews() const
Returns true if RowViews are supported.
Definition: Ifpack2_SparsityFilter_def.hpp:436
virtual ~SparsityFilter()
Destructor.
Definition: Ifpack2_SparsityFilter_def.hpp:109
virtual bool hasColMap() const
Indicates whether this matrix has a well-defined column map.
Definition: Ifpack2_SparsityFilter_def.hpp:249
virtual Teuchos::RCP< const Teuchos::Comm< int > > getComm() const
Returns the communicator.
Definition: Ifpack2_SparsityFilter_def.hpp:113
SparsityFilter(const Teuchos::RCP< const row_matrix_type > &Matrix, size_t AllowedNumEntries, LocalOrdinal AllowedBandwidth=-Teuchos::ScalarTraits< LocalOrdinal >::one())
Constructor.
Definition: Ifpack2_SparsityFilter_def.hpp:57
virtual size_t getNumEntriesInGlobalRow(GlobalOrdinal globalRow) const
Returns the current number of entries on this node in the specified global row.
Definition: Ifpack2_SparsityFilter_def.hpp:221
virtual bool isGloballyIndexed() const
If matrix indices are in the global range, this function returns true. Otherwise, this function retur...
Definition: Ifpack2_SparsityFilter_def.hpp:263
virtual bool isLocallyIndexed() const
If matrix indices are in the local range, this function returns true. Otherwise, this function return...
Definition: Ifpack2_SparsityFilter_def.hpp:256
virtual void getLocalRowView(LocalOrdinal DropRow, Teuchos::ArrayView< const LocalOrdinal > &indices, Teuchos::ArrayView< const Scalar > &values) const
Extract a const, non-persisting view of local indices in a specified row of the matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:355
virtual size_t getNodeMaxNumRowEntries() const
Returns the maximum number of entries across all rows/columns on this node.
Definition: Ifpack2_SparsityFilter_def.hpp:242
virtual bool hasTransposeApply() const
Indicates whether this operator supports applying the adjoint operator.
Definition: Ifpack2_SparsityFilter_def.hpp:429
virtual bool isFillComplete() const
Returns true if fillComplete() has been called.
Definition: Ifpack2_SparsityFilter_def.hpp:270
Drop entries of a matrix, based on the sparsity pattern.
Definition: Ifpack2_SparsityFilter_decl.hpp:82
virtual mag_type getFrobeniusNorm() const
Returns the Frobenius norm of the matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:443
virtual GlobalOrdinal getIndexBase() const
Returns the index base for global indices for this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:200
virtual global_size_t getGlobalNumEntries() const
Returns the global number of entries in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:207
virtual size_t getNumEntriesInLocalRow(LocalOrdinal localRow) const
Returns the current number of entries on this node in the specified local row.
Definition: Ifpack2_SparsityFilter_def.hpp:228
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getRangeMap() const
Returns the Map that describes the range distribution in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:154
virtual 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 >::zero()) const
Computes the operator-multivector application.
Definition: Ifpack2_SparsityFilter_def.hpp:386
virtual void getGlobalRowView(GlobalOrdinal GlobalRow, Teuchos::ArrayView< const GlobalOrdinal > &indices, Teuchos::ArrayView< const Scalar > &values) const
Extract a const, non-persisting view of global indices in a specified row of the matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:346
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getRowMap() const
Returns the Map that describes the row distribution in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:124
virtual void getLocalRowCopy(LocalOrdinal DropRow, const Teuchos::ArrayView< LocalOrdinal > &Indices, const Teuchos::ArrayView< Scalar > &Values, size_t &NumEntries) const
Extract a list of entries in a specified local row of the graph. Put into storage allocated by callin...
Definition: Ifpack2_SparsityFilter_def.hpp:287
virtual void rightScale(const Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &x)
Scales the RowMatrix on the right with the Vector x.
Definition: Ifpack2_SparsityFilter_def.hpp:379
virtual void leftScale(const Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &x)
Scales the RowMatrix on the left with the Vector x.
Definition: Ifpack2_SparsityFilter_def.hpp:372
virtual global_size_t getGlobalNumCols() const
Returns the number of global columns in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:178
Preconditioners and smoothers for Tpetra sparse matrices.
Definition: Ifpack2_AdditiveSchwarz_decl.hpp:73
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getDomainMap() const
Returns the Map that describes the domain distribution in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:144
virtual Teuchos::RCP< const Tpetra::RowGraph< LocalOrdinal, GlobalOrdinal, Node > > getGraph() const
Returns the RowGraph associated with this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:164
virtual size_t getNodeNumEntries() const
Returns the local number of entries in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:214
virtual size_t getNodeNumRows() const
Returns the number of rows owned on the calling node.
Definition: Ifpack2_SparsityFilter_def.hpp:185
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getColMap() const
Returns the Map that describes the column distribution in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:134