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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 "Tpetra_Map_fwd.hpp"
52 #include <type_traits>
53 
54 namespace Teuchos {
55  class ParameterList; // forward declaration
56 }
57 
58 namespace Ifpack2 {
59 
70  template<class MatrixType>
71  class Hiptmair :
72  virtual public Ifpack2::Preconditioner<typename MatrixType::scalar_type,
73  typename MatrixType::local_ordinal_type,
74  typename MatrixType::global_ordinal_type,
75  typename MatrixType::node_type>
76  {
77  public:
78  // \name Public typedefs
80 
82  typedef typename MatrixType::scalar_type scalar_type;
83 
85  typedef typename MatrixType::local_ordinal_type local_ordinal_type;
86 
88  typedef typename MatrixType::global_ordinal_type global_ordinal_type;
89 
91  typedef typename MatrixType::node_type node_type;
92 
95 
97  typedef Tpetra::RowMatrix<scalar_type,
101 
102  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.");
103 
109 
111  // \name Constructors and Destructors
113 
118 
120  virtual ~Hiptmair ();
121 
123 
125 
135  void setParameters (const Teuchos::ParameterList& params);
136 
138  void initialize ();
139 
141  inline bool isInitialized () const {
142  return IsInitialized_;
143  }
144 
146  void compute ();
147 
149  inline bool isComputed() const {
150  return IsComputed_;
151  }
152 
154 
156 
158  void
159  apply (const Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type>& X,
160  Tpetra::MultiVector<scalar_type,local_ordinal_type,global_ordinal_type,node_type>& Y,
164 
165  void
166  applyHiptmairSmoother(const Tpetra::MultiVector<typename MatrixType::scalar_type,
167  typename MatrixType::local_ordinal_type,
168  typename MatrixType::global_ordinal_type,
169  typename MatrixType::node_type>& X,
170  Tpetra::MultiVector<typename MatrixType::scalar_type,
171  typename MatrixType::local_ordinal_type,
172  typename MatrixType::global_ordinal_type,
173  typename MatrixType::node_type>& Y) const;
174 
177 
180 
182  bool hasTransposeApply() const;
183 
185 
187 
190 
193 
195  int getNumInitialize() const;
196 
198  int getNumCompute() const;
199 
201  int getNumApply() const;
202 
204  double getInitializeTime() const;
205 
207  double getComputeTime() const;
208 
210  double getApplyTime() const;
211 
213 
214 
216  std::string description() const;
217 
220 
222 
223  private:
226 
228  Hiptmair (const Hiptmair<MatrixType>& RHS);
229 
231  Hiptmair<MatrixType>& operator= (const Hiptmair<MatrixType>& RHS);
232 
234  // A - matrix in primary space
235  // PtAP - matrix in auxiliary space
236  // P - prolongator matrix
238 
240  std::string precType1_, precType2_, preOrPost_;
241 
243  bool ZeroStartingSolution_;
244 
246  Teuchos::ParameterList precList1_, precList2_;
247 
249  bool IsInitialized_;
251  bool IsComputed_;
253  int NumInitialize_;
255  int NumCompute_;
257  mutable int NumApply_;
259  double InitializeTime_;
261  double ComputeTime_;
263  mutable double ApplyTime_;
265  Teuchos::RCP<prec_type> ifpack2_prec1_, ifpack2_prec2_;
266  };
267 
268 } // namespace Ifpack2
269 
270 #endif // IFPACK2_HIPTMAIR_DECL_HPP
void initialize()
Do any initialization that depends on the input matrix&#39;s structure.
Definition: Ifpack2_Hiptmair_def.hpp:211
MatrixType::local_ordinal_type local_ordinal_type
The type of local indices in the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:85
MatrixType::scalar_type scalar_type
The type of the entries of the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:82
double getComputeTime() const
Returns the time spent in Compute().
Definition: Ifpack2_Hiptmair_def.hpp:199
Teuchos::RCP< const Teuchos::Comm< int > > getComm() const
Returns the operator&#39;s communicator.
Definition: Ifpack2_Hiptmair_def.hpp:126
bool hasTransposeApply() const
Whether this object&#39;s apply() method can apply the transpose (or conjugate transpose, if applicable).
Definition: Ifpack2_Hiptmair_def.hpp:167
bool isInitialized() const
Return true if initialize() completed successfully, else false.
Definition: Ifpack2_Hiptmair_decl.hpp:141
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:425
double getApplyTime() const
Returns the time spent in apply().
Definition: Ifpack2_Hiptmair_def.hpp:205
void setParameters(const Teuchos::ParameterList &params)
Set the preconditioner&#39;s parameters.
Definition: Ifpack2_Hiptmair_def.hpp:85
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:100
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:137
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:156
Teuchos::ScalarTraits< scalar_type >::magnitudeType magnitude_type
The type of the magnitude (absolute value) of a matrix entry.
Definition: Ifpack2_Hiptmair_decl.hpp:94
MatrixType::global_ordinal_type global_ordinal_type
The type of global indices in the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:88
int getNumApply() const
Returns the number of calls to apply().
Definition: Ifpack2_Hiptmair_def.hpp:187
Wrapper for Hiptmair smoothers.
Definition: Ifpack2_Hiptmair_decl.hpp:71
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:58
int getNumCompute() const
Returns the number of calls to Compute().
Definition: Ifpack2_Hiptmair_def.hpp:181
int getNumInitialize() const
Returns the number of calls to Initialize().
Definition: Ifpack2_Hiptmair_def.hpp:175
MatrixType::node_type node_type
The Node type used by the input MatrixType.
Definition: Ifpack2_Hiptmair_decl.hpp:91
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:149
void compute()
Do any initialization that depends on the input matrix&#39;s values.
Definition: Ifpack2_Hiptmair_def.hpp:248
static const EVerbosityLevel verbLevel_default
virtual ~Hiptmair()
Destructor.
Definition: Ifpack2_Hiptmair_def.hpp:82
std::string description() const
Return a simple one-line description of this object.
Definition: Ifpack2_Hiptmair_def.hpp:395
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:144
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:102
double getInitializeTime() const
Returns the time spent in Initialize().
Definition: Ifpack2_Hiptmair_def.hpp:193
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:274