43 #ifndef IFPACK_POINTRELAXATION_H 44 #define IFPACK_POINTRELAXATION_H 46 #include "Ifpack_ConfigDefs.h" 47 #include "Ifpack_Preconditioner.h" 49 #include "Epetra_Vector.h" 50 #include "Epetra_Time.h" 51 #include "Epetra_RowMatrix.h" 52 #include "Epetra_Import.h" 54 #include "Teuchos_RefCountPtr.hpp" 156 UseTranspose_ = UseTranspose_in;
207 virtual const char * Label()
const 209 return(Label_.c_str());
215 return(UseTranspose_);
237 return(IsInitialized_);
259 virtual double Condest(
const Ifpack_CondestType CT = Ifpack_Cheap,
260 const int MaxIters = 1550,
261 const double Tol = 1e-9,
274 virtual std::ostream&
Print(std::ostream & os)
const;
283 return(NumInitialize_);
295 return(NumApplyInverse_);
301 return(InitializeTime_);
307 return(ComputeTime_);
313 return(ApplyInverseTime_);
325 return(ComputeFlops_);
331 return(ApplyInverseFlops_);
387 virtual void SetLabel();
409 mutable int NumApplyInverse_;
411 double InitializeTime_;
415 mutable double ApplyInverseTime_;
417 double ComputeFlops_;
419 mutable double ApplyInverseFlops_;
426 double DampingFactor_;
435 bool ComputeCondest_;
440 double MinDiagonalValue_;
449 long long NumGlobalRows_;
451 long long NumGlobalNonzeros_;
453 Teuchos::RefCountPtr<const Epetra_RowMatrix> Matrix_;
455 Teuchos::RefCountPtr<Epetra_Import> Importer_;
457 mutable Teuchos::RefCountPtr<Epetra_Vector> Diagonal_;
459 Teuchos::RefCountPtr<Epetra_Time> Time_;
463 bool ZeroStartingSolution_;
472 int NumLocalSmoothingIndices_;
474 int * LocalSmoothingIndices_;
482 #endif // IFPACK_POINTRELAXATION_H virtual double ComputeTime() const
Returns the time spent in Compute().
virtual bool UseTranspose() const
Returns the current UseTranspose setting.
virtual const Epetra_Map & OperatorRangeMap() const
Returns the Epetra_Map object associated with the range of this operator.
virtual double Condest() const
Returns the condition number estimate, or -1.0 if not computed.
virtual double ApplyInverseTime() const
Returns the time spent in ApplyInverse().
virtual double InitializeTime() const
Returns the time spent in Initialize().
virtual int SetUseTranspose(bool UseTranspose_in)
virtual int ApplyInverse(const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
Applies the preconditioner to X, returns the result in Y.
Ifpack_PointRelaxation(const Epetra_RowMatrix *Matrix)
Ifpack_PointRelaxation constructor with given Epetra_RowMatrix.
virtual int SetParameters(Teuchos::ParameterList &List)
Sets all the parameters for the preconditioner.
virtual bool HasNormInf() const
Returns true if the this object can provide an approximate Inf-norm, false otherwise.
virtual int Apply(const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
Applies the matrix to an Epetra_MultiVector.
virtual const Epetra_RowMatrix & Matrix() const
Returns a pointer to the matrix to be preconditioned.
virtual const Epetra_Comm & Comm() const
Returns a pointer to the Epetra_Comm communicator associated with this operator.
virtual int NumCompute() const
Returns the number of calls to Compute().
Ifpack_Preconditioner: basic class for preconditioning in Ifpack.
virtual bool IsInitialized() const
Returns true if the preconditioner has been successfully initialized, false otherwise.
Ifpack_PointRelaxation: a class to define point relaxation preconditioners of for Epetra_RowMatrix's...
virtual int Compute()
Computes the preconditioners.
virtual int Initialize()
Computes all it is necessary to initialize the preconditioner.
virtual int NumInitialize() const
Returns the number of calls to Initialize().
virtual double NormInf() const
Returns the infinity norm of the global matrix (not implemented)
virtual std::ostream & Print(std::ostream &os) const
Prints object to an output stream.
virtual const Epetra_Map & OperatorDomainMap() const
Returns the Epetra_Map object associated with the domain of this operator.
virtual bool IsComputed() const
Returns true if the preconditioner has been successfully computed.
virtual double ComputeFlops() const
Returns the number of flops in the computation phase.
virtual int NumApplyInverse() const
Returns the number of calls to ApplyInverse().
virtual ~Ifpack_PointRelaxation()
Destructor.
virtual double ApplyInverseFlops() const
Returns the number of flops for the application of the preconditioner.
virtual double InitializeFlops() const
Returns the number of flops in the initialization phase.