43 #ifndef IFPACK2_SPARSITYFILTER_DECL_HPP
44 #define IFPACK2_SPARSITYFILTER_DECL_HPP
46 #include "Ifpack2_ConfigDefs.hpp"
47 #include "Ifpack2_Details_RowMatrix.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 MatrixType::global_inds_host_view_type global_inds_host_view_type;
90 typedef typename MatrixType::local_inds_host_view_type local_inds_host_view_type;
91 typedef typename MatrixType::values_host_view_type values_host_view_type;
93 typedef typename MatrixType::nonconst_global_inds_host_view_type nonconst_global_inds_host_view_type;
94 typedef typename MatrixType::nonconst_local_inds_host_view_type nonconst_local_inds_host_view_type;
95 typedef typename MatrixType::nonconst_values_host_view_type nonconst_values_host_view_type;
98 typedef Tpetra::RowMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> row_matrix_type;
99 typedef typename row_matrix_type::mag_type mag_type;
101 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.");
109 size_t AllowedNumEntries,
208 nonconst_global_inds_host_view_type &Indices,
209 nonconst_values_host_view_type &Values,
210 size_t& NumEntries)
const;
226 nonconst_local_inds_host_view_type &Indices,
227 nonconst_values_host_view_type &Values,
228 size_t& NumEntries)
const;
242 global_inds_host_view_type &indices,
243 values_host_view_type &values)
const;
257 local_inds_host_view_type & indices,
258 values_host_view_type & values)
const;
263 virtual void getLocalDiagCopy(Tpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &diag)
const;
279 virtual void leftScale(
const Tpetra::Vector<Scalar, LocalOrdinal, GlobalOrdinal, Node>& x);
290 virtual void rightScale(
const Tpetra::Vector<Scalar, LocalOrdinal, GlobalOrdinal, Node>& x);
304 virtual void apply(
const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &X,
305 Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &Y,
320 size_t AllowedNumEntries_;
322 LocalOrdinal AllowedBandwidth_;
328 size_t MaxNumEntries_;
330 size_t MaxNumEntriesA_;
332 std::vector<size_t> NumEntries_;
334 mutable nonconst_local_inds_host_view_type Indices_;
336 mutable nonconst_values_host_view_type Values_;
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:395
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 bool hasTransposeApply() const
Indicates whether this operator supports applying the adjoint operator.
Definition: Ifpack2_SparsityFilter_def.hpp:439
virtual size_t getLocalMaxNumRowEntries() const
Returns the maximum number of entries across all rows/columns on this node.
Definition: Ifpack2_SparsityFilter_def.hpp:242
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 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
All Ifpack2 implementations of Tpetra::RowMatrix must inherit from this class.
Definition: Ifpack2_Details_RowMatrix.hpp:63
virtual void getLocalRowCopy(LocalOrdinal LocalRow, nonconst_local_inds_host_view_type &Indices, nonconst_values_host_view_type &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:295
virtual size_t getLocalNumEntries() const
Returns the local number of entries in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:214
virtual void getGlobalRowView(GlobalOrdinal GlobalRow, global_inds_host_view_type &indices, values_host_view_type &values) const
Extract a const, non-persisting view of global indices in a specified row of the matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:355
virtual GlobalOrdinal getIndexBase() const
Returns the index base for global indices for this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:200
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
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:373
virtual LocalOrdinal getBlockSize() const
The number of degrees of freedom per mesh point.
Definition: Ifpack2_SparsityFilter_def.hpp:249
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:270
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 bool isLocallyIndexed() const
If matrix indices are in the local range, this function returns true. Otherwise, this function return...
Definition: Ifpack2_SparsityFilter_def.hpp:263
virtual ~SparsityFilter()
Destructor.
Definition: Ifpack2_SparsityFilter_def.hpp:109
virtual global_size_t getGlobalNumRows() const
Returns the number of global rows in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:171
virtual size_t getLocalNumCols() 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 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 global_size_t getGlobalNumCols() const
Returns the number of global columns in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:178
virtual bool hasColMap() const
Indicates whether this matrix has a well-defined column map.
Definition: Ifpack2_SparsityFilter_def.hpp:256
virtual mag_type getFrobeniusNorm() const
Returns the Frobenius norm of the matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:453
Drop entries of a matrix, based on the sparsity pattern.
Definition: Ifpack2_SparsityFilter_decl.hpp:82
virtual size_t getGlobalMaxNumRowEntries() const
Returns the maximum number of entries across all rows/columns on all nodes.
Definition: Ifpack2_SparsityFilter_def.hpp:235
virtual void getLocalRowView(LocalOrdinal LocalRow, local_inds_host_view_type &indices, values_host_view_type &values) const
Extract a const, non-persisting view of local indices in a specified row of the matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:364
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 global_size_t getGlobalNumEntries() const
Returns the global number of entries in this matrix.
Definition: Ifpack2_SparsityFilter_def.hpp:207
virtual bool isFillComplete() const
Returns true if fillComplete() has been called.
Definition: Ifpack2_SparsityFilter_def.hpp:277
virtual void getGlobalRowCopy(GlobalOrdinal GlobalRow, nonconst_global_inds_host_view_type &Indices, nonconst_values_host_view_type &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:285
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:388
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:381
virtual bool supportsRowViews() const
Returns true if RowViews are supported.
Definition: Ifpack2_SparsityFilter_def.hpp:446
virtual size_t getLocalNumRows() const
Returns the number of rows owned on the calling node.
Definition: Ifpack2_SparsityFilter_def.hpp:185