1 //=====================================================
2 // File   :  action_matrix_vector_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_MATRIX_VECTOR_PRODUCT
21 #define ACTION_MATRIX_VECTOR_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_matrix_vector_product {
33 
34 public :
35 
36   // Ctor
37 
Action_matrix_vector_product(int size)38   BTL_DONT_INLINE Action_matrix_vector_product( int size ):_size(size)
39   {
40     MESSAGE("Action_matrix_vector_product Ctor");
41 
42     // STL matrix and vector initialization
43 
44     init_matrix<pseudo_random>(A_stl,_size);
45     init_vector<pseudo_random>(B_stl,_size);
46     init_vector<null_function>(X_stl,_size);
47     init_vector<null_function>(resu_stl,_size);
48 
49     // generic matrix and vector initialization
50 
51     Interface::matrix_from_stl(A_ref,A_stl);
52     Interface::matrix_from_stl(A,A_stl);
53     Interface::vector_from_stl(B_ref,B_stl);
54     Interface::vector_from_stl(B,B_stl);
55     Interface::vector_from_stl(X_ref,X_stl);
56     Interface::vector_from_stl(X,X_stl);
57 
58   }
59 
60   // invalidate copy ctor
61 
Action_matrix_vector_product(const Action_matrix_vector_product &)62   Action_matrix_vector_product( const  Action_matrix_vector_product & )
63   {
64     INFOS("illegal call to Action_matrix_vector_product Copy Ctor");
65     exit(1);
66   }
67 
68   // Dtor
69 
~Action_matrix_vector_product(void)70   BTL_DONT_INLINE ~Action_matrix_vector_product( void ){
71 
72     MESSAGE("Action_matrix_vector_product Dtor");
73 
74     // deallocation
75 
76     Interface::free_matrix(A,_size);
77     Interface::free_vector(B);
78     Interface::free_vector(X);
79 
80     Interface::free_matrix(A_ref,_size);
81     Interface::free_vector(B_ref);
82     Interface::free_vector(X_ref);
83 
84   }
85 
86   // action name
87 
name(void)88   static inline std::string name( void )
89   {
90     return "matrix_vector_" + Interface::name();
91   }
92 
nb_op_base(void)93   double nb_op_base( void ){
94     return 2.0*_size*_size;
95   }
96 
initialize(void)97   BTL_DONT_INLINE  void initialize( void ){
98 
99     Interface::copy_matrix(A_ref,A,_size);
100     Interface::copy_vector(B_ref,B,_size);
101     Interface::copy_vector(X_ref,X,_size);
102 
103   }
104 
calculate(void)105   BTL_DONT_INLINE void calculate( void ) {
106       BTL_ASM_COMMENT("#begin matrix_vector_product");
107       Interface::matrix_vector_product(A,B,X,_size);
108       BTL_ASM_COMMENT("end matrix_vector_product");
109   }
110 
check_result(void)111   BTL_DONT_INLINE void check_result( void ){
112 
113     // calculation check
114 
115     Interface::vector_to_stl(X,resu_stl);
116 
117     STL_interface<typename Interface::real_type>::matrix_vector_product(A_stl,B_stl,X_stl,_size);
118 
119     typename Interface::real_type error=
120       STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl);
121 
122     if (error>1.e-5){
123       INFOS("WRONG CALCULATION...residual=" << error);
124       exit(0);
125     }
126 
127   }
128 
129 private :
130 
131   typename Interface::stl_matrix A_stl;
132   typename Interface::stl_vector B_stl;
133   typename Interface::stl_vector X_stl;
134   typename Interface::stl_vector resu_stl;
135 
136   typename Interface::gene_matrix A_ref;
137   typename Interface::gene_vector B_ref;
138   typename Interface::gene_vector X_ref;
139 
140   typename Interface::gene_matrix A;
141   typename Interface::gene_vector B;
142   typename Interface::gene_vector X;
143 
144 
145   int _size;
146 
147 };
148 
149 
150 #endif
151 
152 
153 
154