43 #ifndef IFPACK2_DIAGONALFILTER_DEF_HPP
44 #define IFPACK2_DIAGONALFILTER_DEF_HPP
45 #include "Ifpack2_DiagonalFilter_decl.hpp"
48 #include "Teuchos_Comm.hpp"
49 #include "Tpetra_Map.hpp"
50 #include "Tpetra_MultiVector.hpp"
51 #include "Tpetra_Vector.hpp"
56 template<
class MatrixType>
62 AbsoluteThreshold_(AbsoluteThreshold),
63 RelativeThreshold_(RelativeThreshold)
66 val_=
Teuchos::rcp(
new Tpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node>(A_->getRowMap()));
76 A_->getLocalRowCopy(MyRow,Indices,Values,NumEntries);
78 for (
size_t i = 0 ; i < NumEntries ; ++i) {
79 if ((
size_t)Indices[i] == MyRow) {
87 val_->replaceLocalValue (MyRow, Values[i] * (RelativeThreshold_ - 1) +
88 AbsoluteThreshold_ * mysign);
95 template<
class MatrixType>
98 template<
class MatrixType>
101 return A_->getComm();
105 template<
class MatrixType>
106 Teuchos::RCP<
const Tpetra::Map<
typename MatrixType::local_ordinal_type,
107 typename MatrixType::global_ordinal_type,
108 typename MatrixType::node_type> >
111 return A_->getRowMap();
114 template<
class MatrixType>
115 Teuchos::RCP<
const Tpetra::Map<
typename MatrixType::local_ordinal_type,
116 typename MatrixType::global_ordinal_type,
117 typename MatrixType::node_type> >
120 return A_->getColMap();
123 template<
class MatrixType>
124 Teuchos::RCP<
const Tpetra::Map<
typename MatrixType::local_ordinal_type,
125 typename MatrixType::global_ordinal_type,
126 typename MatrixType::node_type> >
129 return A_->getDomainMap();
132 template<
class MatrixType>
133 Teuchos::RCP<
const Tpetra::Map<
typename MatrixType::local_ordinal_type,
134 typename MatrixType::global_ordinal_type,
135 typename MatrixType::node_type> >
138 return A_->getRangeMap();
141 template<
class MatrixType>
142 Teuchos::RCP<
const Tpetra::RowGraph<
typename MatrixType::local_ordinal_type,
143 typename MatrixType::global_ordinal_type,
144 typename MatrixType::node_type> >
147 return A_->getGraph();
150 template<
class MatrixType>
153 return A_->getGlobalNumRows();
156 template<
class MatrixType>
159 return A_->getGlobalNumCols();
162 template<
class MatrixType>
165 return A_->getLocalNumRows();
168 template<
class MatrixType>
171 return A_->getLocalNumCols();
174 template<
class MatrixType>
177 return A_->getIndexBase();
180 template<
class MatrixType>
183 return A_->getGlobalNumEntries();
186 template<
class MatrixType>
189 return A_->getLocalNumEntries();
192 template<
class MatrixType>
195 return A_->getNumEntriesInGlobalRow(globalRow);
198 template<
class MatrixType>
201 return A_->getNumEntriesInLocalRow(localRow);
204 template<
class MatrixType>
207 return A_->getGlobalMaxNumRowEntries();
210 template<
class MatrixType>
213 return A_->getLocalMaxNumRowEntries();
216 template<
class MatrixType>
219 return A_->getBlockSize();
222 template<
class MatrixType>
225 return A_->hasColMap();
228 template<
class MatrixType>
231 return A_->isLocallyIndexed();
234 template<
class MatrixType>
237 return A_->isGloballyIndexed();
240 template<
class MatrixType>
243 return A_->isFillComplete();
246 template<
class MatrixType>
249 nonconst_global_inds_host_view_type &Indices,
250 nonconst_values_host_view_type &Values,
251 size_t& NumEntries)
const
255 LocalOrdinal LocalRow=getRowMap()->getLocalElement(GlobalRow);
257 A_->getGlobalRowCopy(GlobalRow, Indices,Values,NumEntries);
259 if (pos_[LocalRow] != -1)
260 Values[pos_[LocalRow]] += myvals[LocalRow];
264 template<
class MatrixType>
267 nonconst_local_inds_host_view_type &Indices,
268 nonconst_values_host_view_type &Values,
269 size_t& NumEntries)
const
273 A_->getLocalRowCopy(LocalRow, Indices,Values,NumEntries);
275 if (pos_[LocalRow] != -1)
276 Values[pos_[LocalRow]] += myvals[LocalRow];
280 template<
class MatrixType>
282 global_inds_host_view_type &,
283 values_host_view_type &)
const
285 throw std::runtime_error(
"Ifpack2::DiagonalFilter: does not support getGlobalRowView.");
289 template<
class MatrixType>
291 local_inds_host_view_type & ,
292 values_host_view_type & )
const
294 throw std::runtime_error(
"Ifpack2::DiagonalFilter: does not support getLocalRowView.");
298 template<
class MatrixType>
303 return A_->getLocalDiagCopy(diag);
306 template<
class MatrixType>
309 throw std::runtime_error(
"Ifpack2::DiagonalFilter does not support leftScale.");
312 template<
class MatrixType>
315 throw std::runtime_error(
"Ifpack2::DiagonalFilter does not support rightScale.");
318 template<
class MatrixType>
320 apply (
const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &X,
321 Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &Y,
330 A_->apply(X,Y,mode,alpha,beta);
331 Y.elementWiseMultiply(one,*val_,X,one);
334 template<
class MatrixType>
337 return A_->hasTransposeApply();
340 template<
class MatrixType>
346 template<
class MatrixType>
349 throw std::runtime_error(
"Ifpack2::DiagonalFilter does not implement getFrobeniusNorm.");
354 #define IFPACK2_DIAGONALFILTER_INSTANT(S,LO,GO,N) \
355 template class Ifpack2::DiagonalFilter< Tpetra::RowMatrix<S, LO, GO, N> >;
virtual mag_type getFrobeniusNorm() const
Returns the Frobenius norm of the matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:347
virtual Teuchos::RCP< const Teuchos::Comm< int > > getComm() const
Returns the communicator.
Definition: Ifpack2_DiagonalFilter_def.hpp:99
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_DiagonalFilter_def.hpp:320
virtual global_size_t getGlobalNumRows() const
Returns the number of global rows in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:151
virtual global_size_t getGlobalNumEntries() const
Returns the global number of entries in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:181
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_DiagonalFilter_def.hpp:248
virtual LocalOrdinal getBlockSize() const
The number of degrees of freedom per mesh point.
Definition: Ifpack2_DiagonalFilter_def.hpp:217
virtual ~DiagonalFilter()
Destructor.
Definition: Ifpack2_DiagonalFilter_def.hpp:96
virtual size_t getLocalNumEntries() const
Returns the local number of entries in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:187
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_DiagonalFilter_def.hpp:169
virtual bool hasTransposeApply() const
Indicates whether this operator supports applying the adjoint operator.
Definition: Ifpack2_DiagonalFilter_def.hpp:335
virtual size_t getGlobalMaxNumRowEntries() const
Returns the maximum number of entries across all rows/columns on all nodes.
Definition: Ifpack2_DiagonalFilter_def.hpp:205
TEUCHOS_DEPRECATED RCP< T > rcp(T *p, Dealloc_T dealloc, bool owns_mem)
virtual GlobalOrdinal getIndexBase() const
Returns the index base for global indices for this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:175
virtual bool isGloballyIndexed() const
If matrix indices are in the global range, this function returns true. Otherwise, this function retur...
Definition: Ifpack2_DiagonalFilter_def.hpp:235
virtual void leftScale(const Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &x)
Scales the RowMatrix on the left with the Vector x.
Definition: Ifpack2_DiagonalFilter_def.hpp:307
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_DiagonalFilter_def.hpp:266
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getRowMap() const
Returns the Map that describes the row distribution in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:109
virtual bool hasColMap() const
Indicates whether this matrix has a well-defined column map.
Definition: Ifpack2_DiagonalFilter_def.hpp:223
virtual void rightScale(const Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &x)
Scales the RowMatrix on the right with the Vector x.
Definition: Ifpack2_DiagonalFilter_def.hpp:313
virtual size_t getLocalNumRows() const
Returns the number of rows owned on the calling node.
Definition: Ifpack2_DiagonalFilter_def.hpp:163
virtual Teuchos::RCP< const Tpetra::RowGraph< LocalOrdinal, GlobalOrdinal, Node > > getGraph() const
Returns the RowGraph associated with this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:145
virtual bool isFillComplete() const
Returns true if fillComplete() has been called.
Definition: Ifpack2_DiagonalFilter_def.hpp:241
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_DiagonalFilter_def.hpp:299
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_DiagonalFilter_def.hpp:281
virtual bool isLocallyIndexed() const
If matrix indices are in the local range, this function returns true. Otherwise, this function return...
Definition: Ifpack2_DiagonalFilter_def.hpp:229
DiagonalFilter(const Teuchos::RCP< const Tpetra::RowMatrix< Scalar, LocalOrdinal, GlobalOrdinal, Node > > &Matrix, magnitudeType AbsoluteThreshold, magnitudeType RelativeThreshold)
Constructor.
Definition: Ifpack2_DiagonalFilter_def.hpp:58
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getRangeMap() const
Returns the Map that describes the range distribution in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:136
virtual global_size_t getGlobalNumCols() const
Returns the number of global columns in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:157
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getDomainMap() const
Returns the Map that describes the domain distribution in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:127
virtual size_t getLocalMaxNumRowEntries() const
Returns the maximum number of entries across all rows/columns on this node.
Definition: Ifpack2_DiagonalFilter_def.hpp:211
virtual Teuchos::RCP< const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > > getColMap() const
Returns the Map that describes the column distribution in this matrix.
Definition: Ifpack2_DiagonalFilter_def.hpp:118
virtual size_t getNumEntriesInGlobalRow(GlobalOrdinal globalRow) const
Returns the current number of entries on this node in the specified global row.
Definition: Ifpack2_DiagonalFilter_def.hpp:193
virtual size_t getNumEntriesInLocalRow(LocalOrdinal localRow) const
Returns the current number of entries on this node in the specified local row.
Definition: Ifpack2_DiagonalFilter_def.hpp:199
virtual bool supportsRowViews() const
Returns true if RowViews are supported.
Definition: Ifpack2_DiagonalFilter_def.hpp:341
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_DiagonalFilter_def.hpp:290