1//=====================================================
2// File   :  action_matrix_matrix_product_bis.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_MATRIX_PRODUCT_BIS
21#define ACTION_MATRIX_MATRIX_PRODUCT_BIS
22#include "utilities.h"
23#include "STL_interface.hh"
24#include "STL_timer.hh"
25#include <string>
26#include "init_function.hh"
27#include "init_vector.hh"
28#include "init_matrix.hh"
29
30using namespace std;
31
32template<class Interface>
33class Action_matrix_matrix_product_bis {
34
35public :
36
37  static inline std::string name( void )
38  {
39    return "matrix_matrix_"+Interface::name();
40  }
41
42  static double nb_op_base(int size){
43    return 2.0*size*size*size;
44  }
45
46  static double calculate( int nb_calc, int size ) {
47
48    // STL matrix and vector initialization
49
50    typename Interface::stl_matrix A_stl;
51    typename Interface::stl_matrix B_stl;
52    typename Interface::stl_matrix X_stl;
53
54    init_matrix<pseudo_random>(A_stl,size);
55    init_matrix<pseudo_random>(B_stl,size);
56    init_matrix<null_function>(X_stl,size);
57
58    // generic matrix and vector initialization
59
60    typename Interface::gene_matrix A_ref;
61    typename Interface::gene_matrix B_ref;
62    typename Interface::gene_matrix X_ref;
63
64    typename Interface::gene_matrix A;
65    typename Interface::gene_matrix B;
66    typename Interface::gene_matrix X;
67
68
69    Interface::matrix_from_stl(A_ref,A_stl);
70    Interface::matrix_from_stl(B_ref,B_stl);
71    Interface::matrix_from_stl(X_ref,X_stl);
72
73    Interface::matrix_from_stl(A,A_stl);
74    Interface::matrix_from_stl(B,B_stl);
75    Interface::matrix_from_stl(X,X_stl);
76
77
78    // STL_timer utilities
79
80    STL_timer chronos;
81
82    // Baseline evaluation
83
84    chronos.start_baseline(nb_calc);
85
86    do {
87
88      Interface::copy_matrix(A_ref,A,size);
89      Interface::copy_matrix(B_ref,B,size);
90      Interface::copy_matrix(X_ref,X,size);
91
92
93      //      Interface::matrix_matrix_product(A,B,X,size); This line must be commented !!!!
94    }
95    while(chronos.check());
96
97    chronos.report(true);
98
99    // Time measurement
100
101    chronos.start(nb_calc);
102
103    do {
104
105      Interface::copy_matrix(A_ref,A,size);
106      Interface::copy_matrix(B_ref,B,size);
107      Interface::copy_matrix(X_ref,X,size);
108
109      Interface::matrix_matrix_product(A,B,X,size); // here it is not commented !!!!
110    }
111    while(chronos.check());
112
113    chronos.report(true);
114
115    double time=chronos.calculated_time/2000.0;
116
117    // calculation check
118
119    typename Interface::stl_matrix resu_stl(size);
120
121    Interface::matrix_to_stl(X,resu_stl);
122
123    STL_interface<typename Interface::real_type>::matrix_matrix_product(A_stl,B_stl,X_stl,size);
124
125    typename Interface::real_type error=
126      STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl);
127
128    if (error>1.e-6){
129      INFOS("WRONG CALCULATION...residual=" << error);
130      exit(1);
131    }
132
133    // deallocation and return time
134
135    Interface::free_matrix(A,size);
136    Interface::free_matrix(B,size);
137    Interface::free_matrix(X,size);
138
139    Interface::free_matrix(A_ref,size);
140    Interface::free_matrix(B_ref,size);
141    Interface::free_matrix(X_ref,size);
142
143    return time;
144  }
145
146};
147
148
149#endif
150
151
152
153