1 //=====================================================
2 // File   :  action_matrix_matrix_product.hh
3 // Author :  L. Plagne <laurent.plagne@edf.fr)>
4 // Copyright (C) EDF R&D,  lun sep 30 14:23:19 CEST 2002
5 //=====================================================
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License
9 // as published by the Free Software Foundation; either version 2
10 // of the License, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19 //
20 #ifndef ACTION_TRISOLVE_MATRIX_PRODUCT
21 #define ACTION_TRISOLVE_MATRIX_PRODUCT
22 #include "utilities.h"
23 #include "STL_interface.hh"
24 #include <string>
25 #include "init/init_function.hh"
26 #include "init/init_vector.hh"
27 #include "init/init_matrix.hh"
28 
29 using namespace std;
30 
31 template<class Interface>
32 class Action_trisolve_matrix {
33 
34 public :
35 
36   // Ctor
37 
Action_trisolve_matrix(int size)38   Action_trisolve_matrix( int size ):_size(size)
39   {
40     MESSAGE("Action_trisolve_matrix Ctor");
41 
42     // STL matrix and vector initialization
43 
44     init_matrix<pseudo_random>(A_stl,_size);
45     init_matrix<pseudo_random>(B_stl,_size);
46     init_matrix<null_function>(X_stl,_size);
47     init_matrix<null_function>(resu_stl,_size);
48 
49     for (int j=0; j<_size; ++j)
50     {
51       for (int i=0; i<j; ++i)
52         A_stl[j][i] = 0;
53       A_stl[j][j] += 3;
54     }
55 
56     // generic matrix and vector initialization
57 
58     Interface::matrix_from_stl(A_ref,A_stl);
59     Interface::matrix_from_stl(B_ref,B_stl);
60     Interface::matrix_from_stl(X_ref,X_stl);
61 
62     Interface::matrix_from_stl(A,A_stl);
63     Interface::matrix_from_stl(B,B_stl);
64     Interface::matrix_from_stl(X,X_stl);
65 
66     _cost = 0;
67     for (int j=0; j<_size; ++j)
68     {
69       _cost += 2*j + 1;
70     }
71     _cost *= _size;
72   }
73 
74   // invalidate copy ctor
75 
Action_trisolve_matrix(const Action_trisolve_matrix &)76   Action_trisolve_matrix( const  Action_trisolve_matrix & )
77   {
78     INFOS("illegal call to Action_trisolve_matrix Copy Ctor");
79     exit(0);
80   }
81 
82   // Dtor
83 
~Action_trisolve_matrix(void)84   ~Action_trisolve_matrix( void ){
85 
86     MESSAGE("Action_trisolve_matrix Dtor");
87 
88     // deallocation
89 
90     Interface::free_matrix(A,_size);
91     Interface::free_matrix(B,_size);
92     Interface::free_matrix(X,_size);
93 
94     Interface::free_matrix(A_ref,_size);
95     Interface::free_matrix(B_ref,_size);
96     Interface::free_matrix(X_ref,_size);
97 
98   }
99 
100   // action name
101 
name(void)102   static inline std::string name( void )
103   {
104     return "trisolve_matrix_"+Interface::name();
105   }
106 
nb_op_base(void)107   double nb_op_base( void ){
108     return _cost;
109   }
110 
initialize(void)111   inline void initialize( void ){
112 
113     Interface::copy_matrix(A_ref,A,_size);
114     Interface::copy_matrix(B_ref,B,_size);
115     Interface::copy_matrix(X_ref,X,_size);
116 
117   }
118 
calculate(void)119   inline void calculate( void ) {
120       Interface::trisolve_lower_matrix(A,B,X,_size);
121   }
122 
check_result(void)123   void check_result( void ){
124 
125     // calculation check
126 
127 //     Interface::matrix_to_stl(X,resu_stl);
128 //
129 //     STL_interface<typename Interface::real_type>::matrix_matrix_product(A_stl,B_stl,X_stl,_size);
130 //
131 //     typename Interface::real_type error=
132 //       STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl);
133 //
134 //     if (error>1.e-6){
135 //       INFOS("WRONG CALCULATION...residual=" << error);
136 // //       exit(1);
137 //     }
138 
139   }
140 
141 private :
142 
143   typename Interface::stl_matrix A_stl;
144   typename Interface::stl_matrix B_stl;
145   typename Interface::stl_matrix X_stl;
146   typename Interface::stl_matrix resu_stl;
147 
148   typename Interface::gene_matrix A_ref;
149   typename Interface::gene_matrix B_ref;
150   typename Interface::gene_matrix X_ref;
151 
152   typename Interface::gene_matrix A;
153   typename Interface::gene_matrix B;
154   typename Interface::gene_matrix X;
155 
156   int _size;
157   double _cost;
158 
159 };
160 
161 
162 #endif
163 
164 
165 
166