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Ifpack2_Hiptmair_decl.hpp
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42 
46 
47 #ifndef IFPACK2_HIPTMAIR_DECL_HPP
48 #define IFPACK2_HIPTMAIR_DECL_HPP
49 
51 #include <type_traits>
52 
53 namespace Teuchos {
54  class ParameterList; // forward declaration
55 }
56 
57 namespace Ifpack2 {
58 
69  template<class MatrixType>
70  class Hiptmair :
71  virtual public Ifpack2::Preconditioner<typename MatrixType::scalar_type,
72  typename MatrixType::local_ordinal_type,
73  typename MatrixType::global_ordinal_type,
74  typename MatrixType::node_type>
75  {
76  public:
77  // \name Public typedefs
79 
81  typedef typename MatrixType::scalar_type scalar_type;
82 
84  typedef typename MatrixType::local_ordinal_type local_ordinal_type;
85 
87  typedef typename MatrixType::global_ordinal_type global_ordinal_type;
88 
90  typedef typename MatrixType::node_type node_type;
91 
94 
96  typedef Tpetra::RowMatrix<scalar_type,
100 
101  static_assert(std::is_same<MatrixType, row_matrix_type>::value, "Ifpack2::Hiptmair: The template parameter MatrixType must be a Tpetra::RowMatrix specialization. Please don't use Tpetra::CrsMatrix (a subclass of Tpetra::RowMatrix) here anymore. The constructor can take either a RowMatrix or a CrsMatrix just fine.");
102 
108 
110  // \name Constructors and Destructors
112 
117 
119  virtual ~Hiptmair ();
120 
122 
124 
134  void setParameters (const Teuchos::ParameterList& params);
135 
137  void initialize ();
138 
140  inline bool isInitialized () const {
141  return IsInitialized_;
142  }
143 
145  void compute ();
146 
148  inline bool isComputed() const {
149  return IsComputed_;
150  }
151 
153 
155 
157  void
158  apply (const Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type>& X,
159  Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type>& Y,
163 
164  void
165  applyHiptmairSmoother(const Tpetra::MultiVector<typename MatrixType::scalar_type,
166  typename MatrixType::local_ordinal_type,
167  typename MatrixType::global_ordinal_type,
168  typename MatrixType::node_type>& X,
169  Tpetra::MultiVector<typename MatrixType::scalar_type,
170  typename MatrixType::local_ordinal_type,
171  typename MatrixType::global_ordinal_type,
172  typename MatrixType::node_type>& Y) const;
173 
176 
179 
181  bool hasTransposeApply() const;
182 
184 
186 
189 
192 
194  int getNumInitialize() const;
195 
197  int getNumCompute() const;
198 
200  int getNumApply() const;
201 
203  double getInitializeTime() const;
204 
206  double getComputeTime() const;
207 
209  double getApplyTime() const;
210 
212 
213 
215  std::string description() const;
216 
219 
221 
222  private:
225 
227  Hiptmair (const Hiptmair<MatrixType>& RHS);
228 
230  Hiptmair<MatrixType>& operator= (const Hiptmair<MatrixType>& RHS);
231 
233  // A - matrix in primary space
234  // PtAP - matrix in auxiliary space
235  // P - prolongator matrix
237 
239  std::string precType1_, precType2_, preOrPost_;
240 
242  bool ZeroStartingSolution_;
243 
245  Teuchos::ParameterList precList1_, precList2_;
246 
248  bool IsInitialized_;
250  bool IsComputed_;
252  int NumInitialize_;
254  int NumCompute_;
256  mutable int NumApply_;
258  double InitializeTime_;
260  double ComputeTime_;
262  mutable double ApplyTime_;
264  Teuchos::RCP<prec_type> ifpack2_prec1_, ifpack2_prec2_;
265  };
266 
267 } // namespace Ifpack2
268 
269 #endif // IFPACK2_HIPTMAIR_DECL_HPP
void initialize()
Do any initialization that depends on the input matrix&#39;s structure.
Definition: Ifpack2_Hiptmair_def.hpp:210
MatrixType::local_ordinal_type local_ordinal_type
The type of local indices in the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:84
MatrixType::scalar_type scalar_type
The type of the entries of the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:81
double getComputeTime() const
Returns the time spent in Compute().
Definition: Ifpack2_Hiptmair_def.hpp:198
Teuchos::RCP< const Teuchos::Comm< int > > getComm() const
Returns the operator&#39;s communicator.
Definition: Ifpack2_Hiptmair_def.hpp:125
bool hasTransposeApply() const
Whether this object&#39;s apply() method can apply the transpose (or conjugate transpose, if applicable).
Definition: Ifpack2_Hiptmair_def.hpp:166
bool isInitialized() const
Return true if initialize() completed successfully, else false.
Definition: Ifpack2_Hiptmair_decl.hpp:140
void describe(Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const
Print the object with some verbosity level to an FancyOStream object.
Definition: Ifpack2_Hiptmair_def.hpp:428
double getApplyTime() const
Returns the time spent in apply().
Definition: Ifpack2_Hiptmair_def.hpp:204
void setParameters(const Teuchos::ParameterList &params)
Set the preconditioner&#39;s parameters.
Definition: Ifpack2_Hiptmair_def.hpp:84
Tpetra::RowMatrix< scalar_type, local_ordinal_type, global_ordinal_type, node_type > row_matrix_type
Type of the Tpetra::RowMatrix specialization that this class uses.
Definition: Ifpack2_Hiptmair_decl.hpp:99
Teuchos::RCP< const Tpetra::RowMatrix< scalar_type, local_ordinal_type, global_ordinal_type, node_type > > getMatrix() const
Returns a reference to the matrix to be preconditioned.
Definition: Ifpack2_Hiptmair_def.hpp:136
Teuchos::RCP< const Tpetra::Map< local_ordinal_type, global_ordinal_type, node_type > > getRangeMap() const
Tpetra::Map representing the range of this operator.
Definition: Ifpack2_Hiptmair_def.hpp:155
Teuchos::ScalarTraits< scalar_type >::magnitudeType magnitude_type
The type of the magnitude (absolute value) of a matrix entry.
Definition: Ifpack2_Hiptmair_decl.hpp:93
MatrixType::global_ordinal_type global_ordinal_type
The type of global indices in the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:87
int getNumApply() const
Returns the number of calls to apply().
Definition: Ifpack2_Hiptmair_def.hpp:186
Wrapper for Hiptmair smoothers.
Definition: Ifpack2_Hiptmair_decl.hpp:70
Hiptmair(const Teuchos::RCP< const row_matrix_type > &A, const Teuchos::RCP< const row_matrix_type > &PtAP, const Teuchos::RCP< const row_matrix_type > &P)
Constructor that takes 3 Tpetra matrices.
Definition: Ifpack2_Hiptmair_def.hpp:57
int getNumCompute() const
Returns the number of calls to Compute().
Definition: Ifpack2_Hiptmair_def.hpp:180
int getNumInitialize() const
Returns the number of calls to Initialize().
Definition: Ifpack2_Hiptmair_def.hpp:174
MatrixType::node_type node_type
The Node type used by the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:90
Interface for all Ifpack2 preconditioners.
Definition: Ifpack2_Preconditioner.hpp:107
bool isComputed() const
Return true if compute() completed successfully, else false.
Definition: Ifpack2_Hiptmair_decl.hpp:148
void compute()
Do any initialization that depends on the input matrix&#39;s values.
Definition: Ifpack2_Hiptmair_def.hpp:247
static const EVerbosityLevel verbLevel_default
virtual ~Hiptmair()
Destructor.
Definition: Ifpack2_Hiptmair_def.hpp:81
std::string description() const
Return a simple one-line description of this object.
Definition: Ifpack2_Hiptmair_def.hpp:398
Teuchos::RCP< const Tpetra::Map< local_ordinal_type, global_ordinal_type, node_type > > getDomainMap() const
Tpetra::Map representing the domain of this operator.
Definition: Ifpack2_Hiptmair_def.hpp:143
Ifpack2::Preconditioner< scalar_type, local_ordinal_type, global_ordinal_type, node_type > prec_type
Type of the Ifpack2::Preconditioner specialization from which this class inherits.
Definition: Ifpack2_Hiptmair_decl.hpp:101
double getInitializeTime() const
Returns the time spent in Initialize().
Definition: Ifpack2_Hiptmair_def.hpp:192
void apply(const Tpetra::MultiVector< scalar_type, local_ordinal_type, global_ordinal_type, node_type > &X, Tpetra::MultiVector< scalar_type, local_ordinal_type, global_ordinal_type, node_type > &Y, Teuchos::ETransp mode=Teuchos::NO_TRANS, scalar_type alpha=Teuchos::ScalarTraits< scalar_type >::one(), scalar_type beta=Teuchos::ScalarTraits< scalar_type >::zero()) const
Apply the preconditioner to X, putting the result in Y.
Definition: Ifpack2_Hiptmair_def.hpp:273