petsc_diff_solver.h
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1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2014 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
3 
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License, or (at your option) any later version.
8 
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
13 
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 
18 
19 
20 #ifndef LIBMESH_PETSC_DIFF_SOLVER_H
21 #define LIBMESH_PETSC_DIFF_SOLVER_H
22 
23 #include "libmesh/libmesh_common.h"
24 
25 #ifdef LIBMESH_HAVE_PETSC
26 
27 // Local includes
28 #include "libmesh/diff_solver.h"
29 #include "libmesh/petsc_macro.h"
30 
31 // PETSc includes
32 EXTERN_C_FOR_PETSC_BEGIN
33 # include <petscsnes.h>
34 EXTERN_C_FOR_PETSC_END
35 
36 // C++ includes
37 
38 namespace libMesh
39 {
40 
52 // ------------------------------------------------------------
53 // Solver class definition
55 {
56 public:
61  explicit
63 
67  virtual ~PetscDiffSolver ();
68 
69  typedef DiffSolver Parent;
70 
75  virtual void reinit ();
76 
81  void init ();
82 
87  void clear ();
88 
94  virtual unsigned int solve ();
95 
96 protected:
97 
101  SNES _snes;
102 };
103 
104 } // namespace libMesh
105 
106 #endif // #ifdef LIBMESH_HAVE_PETSC
107 
108 #endif // LIBMESH_PETSC_DIFF_SOLVER_H

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