transient_system.h
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1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2018 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_TRANSIENT_SYSTEM_H
21 #define LIBMESH_TRANSIENT_SYSTEM_H
22 
23 // Local Includes
24 #include "libmesh/system.h"
25 #include "libmesh/libmesh_config.h"
26 
27 namespace libMesh
28 {
29 
30 // Forward declarations
31 class LinearImplicitSystem;
32 class NonlinearImplicitSystem;
33 class ExplicitSystem;
34 #ifdef LIBMESH_HAVE_SLEPC
35 class EigenSystem;
36 #endif
37 
50 template <class Base>
51 class TransientSystem : public Base
52 {
53 public:
54 
60  const std::string & name,
61  const unsigned int number);
62 
66  virtual ~TransientSystem ();
67 
72 
76  sys_type & system () { return *this; }
77 
82  virtual void clear () libmesh_override;
83 
89  virtual std::string system_type () const libmesh_override;
90 
91 
92  //-----------------------------------------------------------------
93  // access to the solution data fields
94 
99  Number old_solution (const dof_id_type global_dof_number) const;
100 
105  Number older_solution (const dof_id_type global_dof_number) const;
106 
113  std::unique_ptr<NumericVector<Number>> old_local_solution;
114 
121  std::unique_ptr<NumericVector<Number>> older_local_solution;
122 
123 
124 protected:
125 
131  virtual void re_update () libmesh_override;
132 
133 private:
134 
138  virtual void add_old_vectors ();
139 };
140 
141 
142 
143 // -----------------------------------------------------------
144 // Useful typedefs
150 #ifdef LIBMESH_HAVE_SLEPC
152 #endif
153 
154 
155 
156 // ------------------------------------------------------------
157 // TransientSystem inline methods
158 template <class Base>
159 inline
161 {
162  std::string type = "Transient";
163  type += Base::system_type ();
164 
165  return type;
166 }
167 
168 
169 
170 } // namespace libMesh
171 
172 
173 
174 
175 #endif // LIBMESH_TRANSIENT_SYSTEM_H
std::string name(const ElemQuality q)
Definition: elem_quality.C:39
Manages multiples systems of equations.
Number older_solution(const dof_id_type global_dof_number) const
TransientSystem< Base > sys_type
TransientSystem< EigenSystem > TransientEigenSystem
virtual void add_old_vectors()
virtual void re_update() libmesh_override
std::unique_ptr< NumericVector< Number > > old_local_solution
Used for solving transient systems of equations.
TransientSystem(EquationSystems &es, const std::string &name, const unsigned int number)
Used for solving nonlinear implicit systems of equations.
std::unique_ptr< NumericVector< Number > > older_local_solution
virtual void clear() libmesh_override
Number old_solution(const dof_id_type global_dof_number) const
virtual std::string system_type() const libmesh_override
Used for solving explicit systems of equations.
uint8_t dof_id_type
Definition: id_types.h:64