46 #include "Ifpack_ConfigDefs.h"
47 #include "Ifpack_Preconditioner.h"
49 #ifdef HAVE_IFPACK_EPETRAEXT
50 #include "Ifpack_Condest.h"
52 #include "Epetra_CompObject.h"
53 #include "Epetra_MultiVector.h"
54 #include "Epetra_Vector.h"
55 #include "Epetra_CrsGraph.h"
56 #include "Epetra_CrsMatrix.h"
57 #include "Epetra_BlockMap.h"
58 #include "Epetra_Map.h"
59 #include "Epetra_Object.h"
60 #include "Epetra_Comm.h"
61 #include "Epetra_CrsMatrix.h"
62 #include "Epetra_Time.h"
63 #include "Teuchos_RefCountPtr.hpp"
103 return(IsInitialized_);
137 int SetUseTranspose(
bool UseTranspose_in) {UseTranspose_ = UseTranspose_in;
return(0);};
145 return(Multiply(
false,X,Y));
168 double Condest(
const Ifpack_CondestType CT = Ifpack_Cheap,
169 const int MaxIters = 1550,
170 const double Tol = 1e-9,
183 const char*
Label()
const {
return(Label_);}
186 int SetLabel(
const char* Label_in)
188 strcpy(Label_,Label_in);
193 double NormInf()
const {
return(0.0);};
217 virtual std::ostream&
Print(std::ostream& os)
const;
222 return(NumInitialize_);
234 return(NumApplyInverse_);
240 return(InitializeTime_);
246 return(ComputeTime_);
252 return(ApplyInverseTime_);
263 return(ComputeFlops_);
268 return(ApplyInverseFlops_);
277 Ifpack_IHSS(
const Ifpack_IHSS& RHS) :
282 Ifpack_IHSS& operator=(
const Ifpack_IHSS& )
304 #ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
305 int NumGlobalRows()
const {
return(A_->NumGlobalRows());};
309 int NumGlobalCols()
const {
return(A_->NumGlobalCols());};
311 long long NumGlobalRows64()
const {
return(A_->NumGlobalRows64());};
312 long long NumGlobalCols64()
const {
return(A_->NumGlobalCols64());};
315 int NumMyRows()
const {
return(A_->NumMyRows());};
318 int NumMyCols()
const {
return(A_->NumMyCols());};
321 int PowerMethod(
Epetra_Operator * Op,
const int MaximumIterations,
double& lambda_max);
333 Teuchos::RefCountPtr<Epetra_CrsMatrix> A_;
334 Teuchos::RefCountPtr<Epetra_RowMatrix> Aherm_;
335 Teuchos::RefCountPtr<Epetra_RowMatrix> Askew_;
336 Teuchos::RefCountPtr<Ifpack_Preconditioner> Pherm_;
337 Teuchos::RefCountPtr<Ifpack_Preconditioner> Pskew_;
339 Teuchos::ParameterList List_;
370 mutable int NumApplyInverse_;
372 double InitializeTime_;
376 mutable double ApplyInverseTime_;
378 double ComputeFlops_;
380 mutable double ApplyInverseFlops_;
388 #pragma message("No EpetraEXT")
390 #warning "No EpetraEXT"
virtual int NumInitialize() const =0
Returns the number of calls to Initialize().
virtual int SetUseTranspose(bool UseTranspose)=0
virtual double ComputeTime() const =0
Returns the time spent in Compute().
virtual double ComputeFlops() const =0
Returns the number of flops in the computation phase.
virtual double ApplyInverseTime() const =0
Returns the time spent in ApplyInverse().
virtual double ApplyInverseFlops() const =0
Returns the number of flops in the application of the preconditioner.
virtual const Epetra_RowMatrix & Matrix() const =0
Returns a pointer to the matrix to be preconditioned.
virtual bool IsInitialized() const =0
Returns true if the preconditioner has been successfully initialized, false otherwise.
virtual std::ostream & Print(std::ostream &os) const =0
Prints basic information on iostream. This function is used by operator<<.
virtual const Epetra_Map & OperatorDomainMap() const =0
virtual const char * Label() const =0
virtual int Initialize()=0
Computes all it is necessary to initialize the preconditioner.
virtual double InitializeTime() const =0
Returns the time spent in Initialize().
virtual int Apply(const Epetra_MultiVector &X, Epetra_MultiVector &Y) const =0
virtual const Epetra_Map & OperatorRangeMap() const =0
virtual const Epetra_Comm & Comm() const =0
virtual int SetParameters(Teuchos::ParameterList &List)=0
Sets all parameters for the preconditioner.
virtual double Condest() const =0
Returns the computed condition number estimate, or -1.0 if not computed.
virtual bool UseTranspose() const =0
Ifpack_ScalingType enumerable type.
Ifpack_Preconditioner: basic class for preconditioning in Ifpack.
virtual int ApplyInverse(const Epetra_MultiVector &X, Epetra_MultiVector &Y) const =0
Applies the preconditioner to vector X, returns the result in Y.
virtual double InitializeFlops() const =0
Returns the number of flops in the initialization phase.
virtual bool HasNormInf() const =0
virtual int NumCompute() const =0
Returns the number of calls to Compute().
virtual double NormInf() const =0
virtual bool IsComputed() const =0
Returns true if the preconditioner has been successfully computed, false otherwise.
virtual int Compute()=0
Computes all it is necessary to apply the preconditioner.
virtual int NumApplyInverse() const =0
Returns the number of calls to ApplyInverse().