Ifpack_Preconditioner.h

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//       Ifpack: Object-Oriented Algebraic Preconditioner Package
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#ifndef IFPACK_PRECONDITIONER_H
#define IFPACK_PRECONDITIONER_H

#include "Ifpack_ConfigDefs.h"
#include "Ifpack_CondestType.h"
#include "Epetra_Object.h"
#include "Epetra_Operator.h"
#include "Teuchos_ParameterList.hpp"
class Epetra_RowMatrix;


class Ifpack_Preconditioner : public Epetra_Operator {

public:

  virtual int SetParameters(Teuchos::ParameterList& List) = 0;

  virtual int Initialize() = 0;

  virtual bool IsInitialized() const = 0;

  virtual int Compute() = 0;

  virtual bool IsComputed() const = 0;

  virtual double Condest(const Ifpack_CondestType CT = Ifpack_Cheap,
                         const int MaxIters = 1550,
                         const double Tol = 1e-9,
                         Epetra_RowMatrix* Matrix = 0) = 0;

  virtual double Condest() const = 0;

  virtual int ApplyInverse(const Epetra_MultiVector& X,
                           Epetra_MultiVector& Y) const = 0;

  virtual const Epetra_RowMatrix& Matrix() const = 0;

  virtual int NumInitialize() const = 0;

  virtual int NumCompute() const = 0;

  virtual int NumApplyInverse() const = 0;

  virtual double InitializeTime() const = 0;

  virtual double ComputeTime() const = 0;

  virtual double ApplyInverseTime() const = 0;

  virtual double InitializeFlops() const = 0;

  virtual double ComputeFlops() const = 0;

  virtual double ApplyInverseFlops() const = 0;

  virtual std::ostream& Print(std::ostream& os) const = 0;

};

inline std::ostream& operator<<(std::ostream& os, const Ifpack_Preconditioner& obj)
{
  return(obj.Print(os));
}

#endif // IFPACK_PRECONDITIONER_H