shell_matrix.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_SHELL_MATRIX_H
21 #define LIBMESH_SHELL_MATRIX_H
22 
23 
24 // Local includes
25 #include "libmesh/libmesh_common.h"
27 #include "libmesh/libmesh.h"
28 #include "libmesh/id_types.h"
30 
31 namespace libMesh
32 {
33 
34 // forward declarations
35 template <typename T> class NumericVector;
36 
37 
46 template <typename T>
47 class ShellMatrix : public ReferenceCountedObject<ShellMatrix<T> >,
48  public ParallelObject
49 {
50 public:
54  ShellMatrix (const Parallel::Communicator &comm_in
55  LIBMESH_CAN_DEFAULT_TO_COMMWORLD);
56 
60  virtual ~ShellMatrix ();
61 
66  virtual numeric_index_type m () const = 0;
67 
72  virtual numeric_index_type n () const = 0;
73 
78  virtual void vector_mult (NumericVector<T>& dest,
79  const NumericVector<T>& arg) const = 0;
80 
84  virtual void vector_mult_add (NumericVector<T>& dest,
85  const NumericVector<T>& arg) const = 0;
86 
90  virtual void get_diagonal (NumericVector<T>& dest) const = 0;
91 
92 };
93 
94 
95 
96 //-----------------------------------------------------------------------
97 // ShellMatrix inline members
98 template <typename T>
99 inline
101  ParallelObject(comm_in)
102 {}
103 
104 
105 
106 template <typename T>
107 inline
109 {}
110 
111 
112 } // namespace libMesh
113 
114 
115 #endif // LIBMESH_SHELL_MATRIX_H

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