petsc_diff_solver.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2019 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
 
#ifndef LIBMESH_PETSC_DIFF_SOLVER_H
#define LIBMESH_PETSC_DIFF_SOLVER_H
 
#include "libmesh/libmesh_common.h"
 
#ifdef LIBMESH_HAVE_PETSC
 
// Local includes
#include "libmesh/diff_solver.h"
#include "libmesh/petsc_macro.h"
#include "libmesh/petsc_dm_wrapper.h"
 
// PETSc includes
#ifdef I
# define LIBMESH_SAW_I
#endif
#include <petscsnes.h>
#ifndef LIBMESH_SAW_I
# undef I // Avoid complex.h contamination
#endif
 
namespace libMesh
{
 
class PetscDiffSolver : public DiffSolver
{
public:
  explicit
  PetscDiffSolver (sys_type & system);
 
  virtual ~PetscDiffSolver ();
 
  typedef DiffSolver Parent;
 
  virtual void reinit () override;
 
  virtual void init () override;
 
  void clear ();
 
  virtual unsigned int solve () override;
 
protected:
 
  SNES _snes;
 
#if !PETSC_VERSION_LESS_THAN(3,7,3)
#if defined(LIBMESH_ENABLE_AMR) && defined(LIBMESH_HAVE_METAPHYSICL)
  PetscDMWrapper _dm_wrapper;
#endif
#endif
 
private:
 
  void setup_petsc_data();
};
 
} // namespace libMesh
 
#endif // #ifdef LIBMESH_HAVE_PETSC
 
#endif // LIBMESH_PETSC_DIFF_SOLVER_H