---

HelmholtzOp.H

Go to the documentation of this file.

/*   _______              __
    / ___/ /  ___  __ _  / /  ___
   / /__/ _ \/ _ \/  V \/ _ \/ _ \
   \___/_//_/\___/_/_/_/_.__/\___/
*/
// CHOMBO Copyright (c) 2000-2004, The Regents of the University of
// California, through Lawrence Berkeley National Laboratory (subject to
// receipt of any required approvals from U.S. Dept. of Energy).  All
// rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// (1) Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// (2) Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// (3) Neither the name of Lawrence Berkeley National Laboratory, U.S.
// Dept. of Energy nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// You are under no obligation whatsoever to provide any bug fixes,
// patches, or upgrades to the features, functionality or performance of
// the source code ("Enhancements") to anyone; however, if you choose to
// make your Enhancements available either publicly, or directly to
// Lawrence Berkeley National Laboratory, without imposing a separate
// written license agreement for such Enhancements, then you hereby grant
// the following license: a non-exclusive, royalty-free perpetual license
// to install, use, modify, prepare derivative works, incorporate into
// other computer software, distribute, and sublicense such Enhancements or
// derivative works thereof, in binary and source code form.
//
// TRADEMARKS. Product and company names mentioned herein may be the
// trademarks of their respective owners.  Any rights not expressly granted
// herein are reserved.
//

// DTGraves, Weds, July 21, 1999

#ifndef _HELMHOLTZOP_H_
#define _HELMHOLTZOP_H_

#include <iostream>
#include <cmath>
#include <cassert>
#include <cstdlib>

#include "REAL.H"
#include "IntVect.H"
#include "Box.H"
#include "DisjointBoxLayout.H"
#include "FArrayBox.H"
#include "QuadCFInterp.H"
#include "Copier.H"

#include "GhostBC.H"
#include "LevelOp.H"
#include "CFIVS.H"
#include "BaseBottomSmoother.H"
#include "BaseHelmholtzOp.H"


class HelmholtzOp: public BaseHelmholtzOp
{
public:
  void setHelmCoeff(Real a_helmcoeff);


  void scaleHelmCoeff(Real a_scale);

  void setAlpha(Real a_alpha);


  void scaleAlpha(Real a_scale);

  void scaleBeta(Real a_scale);


  LevelOp* new_levelop() const;


  void define(const DisjointBoxLayout& a_grids,
              const DisjointBoxLayout* a_baseBAPtr,
              Real                     a_dxLevel,
              int                      a_refRatio,
              const Box&               a_domain,
              bool                     a_homogeneousOnly= false,
              int                      a_ncomp = 1);


  void define(
              const DisjointBoxLayout& a_grids,
              const DisjointBoxLayout* a_baseBAPtr,
              Real                     a_dxLevel,
              int                      a_refRatio,
              const ProblemDomain&     a_domain,
              bool                     a_homogeneousOnly= false,
              int                      a_ncomp = 1);


  void define(const LevelOp* a_opfine,
              int            a_refToFine);

  HelmholtzOp();

  ~HelmholtzOp();


  void smooth(LevelData<FArrayBox>&       a_phi,
              const LevelData<FArrayBox>& a_rhs);


  virtual void levelPreconditioner(LevelData<FArrayBox>&       a_phihat,
                                   const LevelData<FArrayBox>& a_rhshat);


  void applyOpI(
                LevelData<FArrayBox>& phi,
                const LevelData<FArrayBox>* phiCoarse,
                LevelData<FArrayBox>& LOfPhi
                );


  void applyOpIcfHphys(
                       LevelData<FArrayBox>& phi,
                       const LevelData<FArrayBox>* phiCoarse,
                       LevelData<FArrayBox>& LOfPhi
                       );


  void applyOpH(
                LevelData<FArrayBox>& phi,
                LevelData<FArrayBox>& LOfPhi
                );


  void applyOpHcfIphys(
                       LevelData<FArrayBox>& phi,
                       LevelData<FArrayBox>& LOfPhi
                       );


  void CFInterp(
                LevelData<FArrayBox>& phi,
                const LevelData<FArrayBox>& phiCoarse
                );


  void homogeneousCFInterp(LevelData<FArrayBox>& phi);


  void setDomainGhostBC(const DomainGhostBC& a_dombcin);


  void setBottomSmoother(const BaseBottomSmoother& a_bottomSmoother);


  void
  homogeneousCFInterp(LevelData<FArrayBox>& phif,
                      const DataIndex& a_datIndex,
                      int idir,
                      Side::LoHiSide hiorlo);


  void bottomSmoother(LevelData<FArrayBox>& phi,
                      const LevelData<FArrayBox>& rhs);

  bool isDefined() const;


  void getFlux(
               FArrayBox& flux,
               const FArrayBox& data,
               const DataIndex& a_datInd,
               int dir);

  virtual void setConvergenceMetric(Real a_metric, int a_comp);

protected:
  DomainGhostBC m_domghostbc;

  ProblemDomain m_domain;

  DisjointBoxLayout m_grids;

  Copier m_exchangeCopier;

  DisjointBoxLayout m_baseBA;

  int m_refRatio;

  Real m_dxLevel;

  Real m_dxCrse;

  int m_ncomp;

  QuadCFInterp m_quadCFI;


  BaseBottomSmoother* m_bottomSmootherPtr;

  bool m_isDefined;

  bool m_isBCDefined;

  bool m_ihcfiEnabled;

  bool m_hcoeffDefined;

  LayoutData<CFIVS> m_loCFIVS[SpaceDim];
  LayoutData<CFIVS> m_hiCFIVS[SpaceDim];

  Real m_helmCoeff;

  Real m_alphaCoeff;

private:
  void levelGSRB(LevelData<FArrayBox>&       a_phi,
                 const LevelData<FArrayBox>& a_rhs);

//  void interpOnIVS(LevelData<FArrayBox>& a_phif,
//                   const FArrayBox&      a_phistar,
//                   const DataIndex&      a_datInd,
//                   const int             a_idir,
//                   const Side::LoHiSide  a_hiorlo,
//                   const IntVectSet&     a_interpIVS);

  void interpOnIVSHomo(LevelData<FArrayBox>& a_phif,
                       const DataIndex&      a_datInd,
                       const int             a_idir,
                       const Side::LoHiSide  a_hiorlo,
                       const IntVectSet&     a_interpIVS);

  void clearMemory();

  void setDefaultValues();
};

#endif

---