Ifpack_Euclid.h

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//       Ifpack: Object-Oriented Algebraic Preconditioner Package
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#ifndef IFPACK_EUCLID_H
#define IFPACK_EUCLID_H
 
#include "Ifpack_ConfigDefs.h"
#ifdef HAVE_EUCLID
 
#include "Ifpack_Condest.h"
#include "Ifpack_ScalingType.h"
#include "Epetra_CompObject.h"
#include "Epetra_MultiVector.h"
#include "Epetra_Vector.h"
#include "Epetra_CrsGraph.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_BlockMap.h"
#include "Epetra_Map.h"
#include "Epetra_Object.h"
#include "Epetra_Comm.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_Time.h"
#include "Teuchos_RefCountPtr.hpp"
#include "Teuchos_ParameterList.hpp"
#include "Epetra_MpiComm.h"
 
#include "Mem_dh.h"
#include "io_dh.h"
#include "TimeLog_dh.h"
#include "Parser_dh.h"
#include "Euclid_dh.h"
 
namespace Teuchos {
  class ParameterList;
}
 
 
  //The other files that were modified for Trilinos are getRow.c, call_epetra.{cpp,h}.
 
class Ifpack_Euclid: public Epetra_Object, public Epetra_CompObject, public virtual Epetra_Operator {
 
  friend std::ostream& operator << (std::ostream& os, const Ifpack_Euclid& A);
 
public:
  // @{ Constructors and destructors.
  Ifpack_Euclid(Epetra_CrsMatrix* A);
 
  ~Ifpack_Euclid(){ Destroy();}
 
  // @}
  // @{ Construction methods
 
  int Initialize();
 
  bool IsInitialized() const{ return(IsInitialized_);}
 
 
  int Compute();
 
  bool IsComputed() const{ return(IsComputed_);}
 
 
 
  int SetParameters(Teuchos::ParameterList& parameterlist);
 
 
  int SetParameter(std::string name, int Value);
 
 
  int SetParameter(std::string name, double Value);
 
  int SetUseTranspose(bool UseTranspose_in) {UseTranspose_ = UseTranspose_in; return(0);};
  // @}
 
  // @{ Mathematical functions.
  // Applies the matrix to X, returns the result in Y.
  int Apply(const Epetra_MultiVector& X,
               Epetra_MultiVector& Y) const{ return(Multiply(false,X,Y));}
 
 
  int Multiply(bool Trans, const Epetra_MultiVector& X, Epetra_MultiVector& Y) const{ return A_->Multiply(Trans, X, Y); }
 
 
  int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
  double Condest(const Ifpack_CondestType CT = Ifpack_Cheap,  const int MaxIters = 1550,
                 const double Tol = 1e-9, Epetra_RowMatrix* Matrix_in = 0);
 
  double Condest() const{ return(Condest_);}
 
  // @}
  // @{ Query methods
 
  const char* Label() const {return(Label_);}
 
  void SetLabel(const char* Label_in){ strcpy(Label_,Label_in);}
 
  const Epetra_Map &OperatorDomainMap() const{return A_->DomainMap();}
 
  const Epetra_Map &OperatorRangeMap() const{return A_->RangeMap();}
 
  double NormInf() const {return(0.0);};
 
  bool HasNormInf() const {return(false);};
 
  bool UseTranspose() const {return(UseTranspose_);};
 
  const Epetra_Comm & Comm() const{return(A_->Comm());};
 
  const Epetra_CrsMatrix& Matrix() const{ return(*A_);}
 
  virtual int NumInitialize() const{ return(NumInitialize_);}
 
  virtual int NumCompute() const{ return(NumCompute_);}
 
  virtual int NumApplyInverse() const{ return(NumApplyInverse_);}
 
  virtual double InitializeTime() const{ return(InitializeTime_);}
 
  virtual double ComputeTime() const{ return(ComputeTime_);}
 
  virtual double ApplyInverseTime() const{ return(ApplyInverseTime_);}
 
  virtual double InitializeFlops() const{ return(0.0);}
 
  virtual double ComputeFlops() const{ return(ComputeFlops_);}
 
  virtual double ApplyInverseFlops() const{ return(ApplyInverseFlops_);}
 
private:
 
  // @}
  // @{ Private methods
 
  Ifpack_Euclid(const Ifpack_Euclid& RHS) : Time_(RHS.Comm()){}
 
  Ifpack_Euclid& operator=(const Ifpack_Euclid& RHS){ return(*this);}
 
  void Destroy();
 
  MPI_Comm GetMpiComm() const{ return (dynamic_cast<const Epetra_MpiComm*>(&A_->Comm()))->GetMpiComm();}
 
  int CallEuclid(double *x, double *y) const;
 
 
  int Solve(bool Trans, const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
  int NumGlobalRows() const {return(A_->NumGlobalRows());};
 
  int NumGlobalCols() const {return(A_->NumGlobalCols());};
 
  int NumMyRows() const {return(A_->NumMyRows());};
 
  int NumMyCols() const {return(A_->NumMyCols());};
 
  // @}
  // @{ Internal data
 
  Teuchos::RefCountPtr<Epetra_CrsMatrix> A_;
  Teuchos::ParameterList List_;
  bool UseTranspose_;
  double Condest_;
  bool IsInitialized_;
  bool IsComputed_;
  char Label_[160];
  int NumInitialize_;
  int NumCompute_;
  mutable int NumApplyInverse_;
  double InitializeTime_;
  double ComputeTime_;
  mutable double ApplyInverseTime_;
  double ComputeFlops_;
  mutable double ApplyInverseFlops_;
  mutable Epetra_Time Time_;
  Euclid_dh eu;
  int SetLevel_;
  int SetBJ_;
  int SetStats_;
  int SetMem_;
  double SetSparse_;
  int SetRowScale_;
  double SetILUT_;
};
 
std::ostream& operator << (std::ostream& os, const Ifpack_Euclid& A);
 
#endif // HAVE_EUCLID
#endif /* IFPACK_EUCLID_H */