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
29using namespace std;
30
31template<class Interface>
32class Action_matrix_vector_product {
33
34public :
35
36  // Ctor
37
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
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
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
88  static inline std::string name( void )
89  {
90    return "matrix_vector_" + Interface::name();
91  }
92
93  double nb_op_base( void ){
94    return 2.0*_size*_size;
95  }
96
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
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
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
129private :
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