BiCGStabSmoother.H

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// DFMartin, Sun, May 5, 2002

#ifndef _BICGSTABSMOOTHER_H_
#define _BICGSTABSMOOTHER_H_

#include <iostream>
#include <cmath>
#include "SPACE.H"
#include <cstdlib>

#include "REAL.H"
#include "IntVect.H"
#include "Box.H"
#include "DisjointBoxLayout.H"
#include "LevelData.H"
#include "FArrayBox.H"
#include "ProblemDomain.H"

#include "BaseBottomSmoother.H"


class BiCGStabSmoother: public BaseBottomSmoother
{
public:
  BiCGStabSmoother();

  virtual ~BiCGStabSmoother();


  virtual BaseBottomSmoother* new_bottomSmoother() const;

  void setMaxIter(int a_maxIter);


  void setSolverTol(Real a_solverTol);


  void setEnableRestart(bool a_enableRestart);


  void setVerbose(bool a_verbose);


  virtual void doBottomSmooth(LevelData<FArrayBox>&       a_phi,
                              const LevelData<FArrayBox>& a_rhs,
                              LevelOp*                    a_levelopPtr);

  virtual void setConvergenceMetric(Real a_metric, int a_comp);

protected:
  int m_maxIter;

  Vector<Real> m_convergenceMetrics;

  Real m_solverTol;

  Real m_small;

  Real m_convergeSmall;

  bool m_enableRestart;

  bool m_verbose;
};

#endif

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