1//=====================================================
2// File   :  action_ata_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_ATA_PRODUCT
21#define ACTION_ATA_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_ata_product {
33
34public :
35
36  // Ctor
37
38  Action_ata_product( int size ):_size(size)
39  {
40    MESSAGE("Action_ata_product Ctor");
41
42    // STL matrix and vector initialization
43
44    init_matrix<pseudo_random>(A_stl,_size);
45    init_matrix<null_function>(X_stl,_size);
46    init_matrix<null_function>(resu_stl,_size);
47
48    // generic matrix and vector initialization
49
50    Interface::matrix_from_stl(A_ref,A_stl);
51    Interface::matrix_from_stl(X_ref,X_stl);
52
53    Interface::matrix_from_stl(A,A_stl);
54    Interface::matrix_from_stl(X,X_stl);
55
56  }
57
58  // invalidate copy ctor
59
60  Action_ata_product( const  Action_ata_product & )
61  {
62    INFOS("illegal call to Action_ata_product Copy Ctor");
63    exit(0);
64  }
65
66  // Dtor
67
68  ~Action_ata_product( void ){
69
70    MESSAGE("Action_ata_product Dtor");
71
72    // deallocation
73
74    Interface::free_matrix(A,_size);
75    Interface::free_matrix(X,_size);
76
77    Interface::free_matrix(A_ref,_size);
78    Interface::free_matrix(X_ref,_size);
79
80  }
81
82  // action name
83
84  static inline std::string name( void )
85  {
86    return "ata_"+Interface::name();
87  }
88
89  double nb_op_base( void ){
90    return 2.0*_size*_size*_size;
91  }
92
93  inline void initialize( void ){
94
95    Interface::copy_matrix(A_ref,A,_size);
96    Interface::copy_matrix(X_ref,X,_size);
97
98  }
99
100  inline void calculate( void ) {
101
102      Interface::ata_product(A,X,_size);
103
104  }
105
106  void check_result( void ){
107    if (_size>128) return;
108    // calculation check
109
110    Interface::matrix_to_stl(X,resu_stl);
111
112    STL_interface<typename Interface::real_type>::ata_product(A_stl,X_stl,_size);
113
114    typename Interface::real_type error=
115      STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl);
116
117    if (error>1.e-6){
118      INFOS("WRONG CALCULATION...residual=" << error);
119      exit(1);
120    }
121
122  }
123
124private :
125
126  typename Interface::stl_matrix A_stl;
127  typename Interface::stl_matrix X_stl;
128  typename Interface::stl_matrix resu_stl;
129
130  typename Interface::gene_matrix A_ref;
131  typename Interface::gene_matrix X_ref;
132
133  typename Interface::gene_matrix A;
134  typename Interface::gene_matrix X;
135
136
137  int _size;
138
139};
140
141
142#endif
143
144
145
146