precond.h

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/*
 * Kurt Garloff <K.Garloff@Phys.TUE.NL>, 08/2000
 * $Id: precond.h,v 1.4.2.8 2019/05/28 11:13:02 garloff Exp $
 */

#ifndef TBCI_SOLVER_PRECOND_H
#define TBCI_SOLVER_PRECOND_H

#include "tbci/basics.h"
#include "tbci/vector.h"
#include "tbci/matrix_sig.h"
#if !defined(NO_GD) && !defined(AUTO_DECL)
# include "precond_gd.h"
#endif

NAMESPACE_TBCI

template <typename T> class BdMatrix;

template <typename T, typename MatrixType = BdMatrix<T> >
class Preconditioner_Sig
{
public:
        Preconditioner_Sig ()  {}
        /*virtual*/ Preconditioner_Sig (const MatrixType &)/* = 0*/;
        virtual ~Preconditioner_Sig ()  {}

        // update-Funktion
        virtual void update (const MatrixType &) = 0;

        // Solve-Funktionen
        virtual /*inline*/ TVector<T> solve (const Vector<T> &) const = 0;
        virtual /*inline*/ TVector<T> solve (TVector<T>) const = 0;

        virtual /*inline*/ TVector<T> transSolve (const Vector<T> &) const = 0;
        virtual /*inline*/ TVector<T> transSolve (     TVector<T>) const = 0;
};

NAMESPACE_END

#endif /* TBCI_SOLVER_PRECOND_H */