libmesh解析
本工作只是尝试解析原libmesh的代码,供学习使用
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sparse_shell_matrix.C
浏览该文件的文档.
1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2023 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 // Local includes
21 #include "libmesh/sparse_shell_matrix.h"
22 
23 namespace libMesh
24 {
25 
26 template <typename T>
28  const NumericVector<T> & arg) const
29 {
30  _m.vector_mult(dest,arg);
31 }
32 
33 
34 
35 template <typename T>
37  const NumericVector<T> & arg) const
38 {
39  _m.vector_mult_add(dest,arg);
40 }
41 
42 
43 
44 //------------------------------------------------------------------
45 // Explicit instantiations
46 template class LIBMESH_EXPORT SparseShellMatrix<Number>;
47 
48 } // namespace libMesh
virtual void vector_mult(NumericVector< T > &dest, const NumericVector< T > &arg) const override
将矩阵与参数arg相乘,并将结果存储在dest中。
提供了不同线性代数库的向量存储方案的统一接口。
Definition: dof_map.h:67
virtual void vector_mult_add(NumericVector< T > &dest, const NumericVector< T > &arg) const override
将矩阵与参数arg相乘,然后将结果添加到dest中。
允许将任何SparseMatrix对象用作壳矩阵的类。