Reference documentation for deal.II version GIT c14369f203 2023-10-01 07:40:02+00:00
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mg_base.cc
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1 // ---------------------------------------------------------------------
2 //
3 // Copyright (C) 1999 - 2021 by the deal.II authors
4 //
5 // This file is part of the deal.II library.
6 //
7 // The deal.II library is free software; you can use it, redistribute
8 // it, and/or modify it under the terms of the GNU Lesser General
9 // Public License as published by the Free Software Foundation; either
10 // version 2.1 of the License, or (at your option) any later version.
11 // The full text of the license can be found in the file LICENSE.md at
12 // the top level directory of deal.II.
13 //
14 // ---------------------------------------------------------------------
15 
24 #include <deal.II/lac/vector.h>
25 
27 
28 
30 
31 
32 template <typename VectorType>
33 void
35  VectorType &u,
36  const VectorType &rhs) const
37 {
38  u = typename VectorType::value_type(0.);
39  smooth(level, u, rhs);
40 }
41 
42 
43 
44 template <typename VectorType>
45 void
47  VectorType &dst,
48  const VectorType &src) const
49 {
50  VectorType temp;
51  temp.reinit(dst, true);
52 
53  this->prolongate(to_level, temp, src);
54 
55  dst += temp;
56 }
57 
58 
59 // Explicit instantiations
60 
61 #include "mg_base.inst"
62 
virtual void apply(const unsigned int level, VectorType &u, const VectorType &rhs) const
Definition: mg_base.cc:34
virtual void prolongate_and_add(const unsigned int to_level, VectorType &dst, const VectorType &src) const
Definition: mg_base.cc:46
#define DEAL_II_NAMESPACE_OPEN
Definition: config.h:477
#define DEAL_II_NAMESPACE_CLOSE
Definition: config.h:478
unsigned int level
Definition: grid_out.cc:4617