CoupledPreconditioner.h

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#ifndef HEX_ECS_COUPLED_PRECONDITIONER_H
#define HEX_ECS_COUPLED_PRECONDITIONER_H

// --------------------------------------------------------------------------------- //

#include "NoPreconditioner.h"

// --------------------------------------------------------------------------------- //

class CoupledPreconditioner : public NoPreconditioner
{
    public:
        
        // run-time selection mechanism
        preconditionerRunTimeSelectionDefinitions(CoupledPreconditioner, "coupled")
        
        // default constructor needed by the RTS mechanism
        CoupledPreconditioner () {}
        
        // constructor
        CoupledPreconditioner
        (
            CommandLine  const & cmd,
            InputFile    const & inp,
            Parallel     const & par,
            AngularBasis const & ang,
            Bspline const & bspline_inner,
            Bspline const & bspline_full,
            Bspline const & bspline_panel_x,
            Bspline const & bspline_panel_y
        ) : NoPreconditioner
            (
                cmd, inp, par, ang,
                bspline_inner,
                bspline_full,
                bspline_panel_x,
                bspline_panel_y
            )
        {}
        
        // preconditioner description
        virtual std::string description () const;
        
        // reuse parent definitions
        using NoPreconditioner::setup;
        using NoPreconditioner::rhs;
        using NoPreconditioner::multiply;
        
        // declare own definitions
        virtual void update (Real E);
        virtual void precondition (BlockArray<Complex> const & r, BlockArray<Complex> & z) const;
        virtual void finish ();
    
    protected:
    
        // LU factorization data.
        LUftData data_;
        
        // LU factorization.
        std::shared_ptr<LUft> lu_;
        
        // Workspace used for the solution.
        mutable cArray X, Y;
};

// --------------------------------------------------------------------------------- //

#endif // HEX_ECS_COUPLED_PRECONDITIONER_H