• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 //=====================================================
2 // File   :  STL_interface.hh
3 // Author :  L. Plagne <laurent.plagne@edf.fr)>
4 // Copyright (C) EDF R&D,  lun sep 30 14:23:24 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 STL_INTERFACE_HH
21 #define STL_INTERFACE_HH
22 #include <string>
23 #include <vector>
24 #include "utilities.h"
25 
26 using namespace std;
27 
28 template<class real>
29 class STL_interface{
30 
31 public :
32 
33   typedef real real_type ;
34 
35   typedef std::vector<real>  stl_vector;
36   typedef std::vector<stl_vector > stl_matrix;
37 
38   typedef stl_matrix gene_matrix;
39 
40   typedef stl_vector gene_vector;
41 
name(void)42   static inline std::string name( void )
43   {
44     return "STL";
45   }
46 
free_matrix(gene_matrix &,int)47   static void free_matrix(gene_matrix & /*A*/, int /*N*/){}
48 
free_vector(gene_vector &)49   static void free_vector(gene_vector & /*B*/){}
50 
matrix_from_stl(gene_matrix & A,stl_matrix & A_stl)51   static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){
52     A = A_stl;
53   }
54 
vector_from_stl(gene_vector & B,stl_vector & B_stl)55   static inline void vector_from_stl(gene_vector & B, stl_vector & B_stl){
56     B = B_stl;
57   }
58 
vector_to_stl(gene_vector & B,stl_vector & B_stl)59   static inline void vector_to_stl(gene_vector & B, stl_vector & B_stl){
60     B_stl = B ;
61   }
62 
63 
matrix_to_stl(gene_matrix & A,stl_matrix & A_stl)64   static inline void matrix_to_stl(gene_matrix & A, stl_matrix & A_stl){
65     A_stl = A ;
66   }
67 
copy_vector(const gene_vector & source,gene_vector & cible,int N)68   static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){
69     for (int i=0;i<N;i++){
70       cible[i]=source[i];
71     }
72   }
73 
74 
copy_matrix(const gene_matrix & source,gene_matrix & cible,int N)75   static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){
76     for (int i=0;i<N;i++)
77       for (int j=0;j<N;j++)
78         cible[i][j]=source[i][j];
79   }
80 
81 //   static inline void ata_product(const gene_matrix & A, gene_matrix & X, int N)
82 //   {
83 //     real somme;
84 //     for (int j=0;j<N;j++){
85 //       for (int i=0;i<N;i++){
86 //         somme=0.0;
87 //         for (int k=0;k<N;k++)
88 //           somme += A[i][k]*A[j][k];
89 //         X[j][i]=somme;
90 //       }
91 //     }
92 //   }
93 
aat_product(const gene_matrix & A,gene_matrix & X,int N)94   static inline void aat_product(const gene_matrix & A, gene_matrix & X, int N)
95   {
96     real somme;
97     for (int j=0;j<N;j++){
98       for (int i=0;i<N;i++){
99         somme=0.0;
100         if(i>=j)
101         {
102           for (int k=0;k<N;k++){
103             somme+=A[k][i]*A[k][j];
104           }
105           X[j][i]=somme;
106         }
107       }
108     }
109   }
110 
111 
matrix_matrix_product(const gene_matrix & A,const gene_matrix & B,gene_matrix & X,int N)112   static inline void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N)
113   {
114     real somme;
115     for (int j=0;j<N;j++){
116       for (int i=0;i<N;i++){
117         somme=0.0;
118         for (int k=0;k<N;k++)
119           somme+=A[k][i]*B[j][k];
120         X[j][i]=somme;
121       }
122     }
123   }
124 
matrix_vector_product(gene_matrix & A,gene_vector & B,gene_vector & X,int N)125   static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N)
126   {
127     real somme;
128     for (int i=0;i<N;i++){
129       somme=0.0;
130       for (int j=0;j<N;j++)
131         somme+=A[j][i]*B[j];
132       X[i]=somme;
133     }
134   }
135 
symv(gene_matrix & A,gene_vector & B,gene_vector & X,int N)136   static inline void symv(gene_matrix & A, gene_vector & B, gene_vector & X, int N)
137   {
138     for (int j=0; j<N; ++j)
139       X[j] = 0;
140     for (int j=0; j<N; ++j)
141     {
142       real t1 = B[j];
143       real t2 = 0;
144       X[j] += t1 * A[j][j];
145       for (int i=j+1; i<N; ++i) {
146         X[i] += t1 * A[j][i];
147         t2 += A[j][i] * B[i];
148       }
149       X[j] += t2;
150     }
151   }
152 
syr2(gene_matrix & A,gene_vector & B,gene_vector & X,int N)153   static inline void syr2(gene_matrix & A, gene_vector & B, gene_vector & X, int N)
154   {
155     for (int j=0; j<N; ++j)
156     {
157       for (int i=j; i<N; ++i)
158         A[j][i] += B[i]*X[j] + B[j]*X[i];
159     }
160   }
161 
ger(gene_matrix & A,gene_vector & X,gene_vector & Y,int N)162   static inline void ger(gene_matrix & A, gene_vector & X, gene_vector & Y, int N)
163   {
164     for (int j=0; j<N; ++j)
165     {
166       for (int i=j; i<N; ++i)
167         A[j][i] += X[i]*Y[j];
168     }
169   }
170 
atv_product(gene_matrix & A,gene_vector & B,gene_vector & X,int N)171   static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N)
172   {
173     real somme;
174     for (int i=0;i<N;i++){
175       somme = 0.0;
176       for (int j=0;j<N;j++)
177         somme += A[i][j]*B[j];
178       X[i] = somme;
179     }
180   }
181 
axpy(real coef,const gene_vector & X,gene_vector & Y,int N)182   static inline void axpy(real coef, const gene_vector & X, gene_vector & Y, int N){
183     for (int i=0;i<N;i++)
184       Y[i]+=coef*X[i];
185   }
186 
axpby(real a,const gene_vector & X,real b,gene_vector & Y,int N)187   static inline void axpby(real a, const gene_vector & X, real b, gene_vector & Y, int N){
188     for (int i=0;i<N;i++)
189       Y[i] = a*X[i] + b*Y[i];
190   }
191 
trisolve_lower(const gene_matrix & L,const gene_vector & B,gene_vector & X,int N)192   static inline void trisolve_lower(const gene_matrix & L, const gene_vector & B, gene_vector & X, int N){
193     copy_vector(B,X,N);
194     for(int i=0; i<N; ++i)
195     {
196       X[i] /= L[i][i];
197       real tmp = X[i];
198       for (int j=i+1; j<N; ++j)
199         X[j] -= tmp * L[i][j];
200     }
201   }
202 
norm_diff(const stl_vector & A,const stl_vector & B)203   static inline real norm_diff(const stl_vector & A, const stl_vector & B)
204   {
205     int N=A.size();
206     real somme=0.0;
207     real somme2=0.0;
208 
209     for (int i=0;i<N;i++){
210       real diff=A[i]-B[i];
211       somme+=diff*diff;
212       somme2+=A[i]*A[i];
213     }
214     return somme/somme2;
215   }
216 
norm_diff(const stl_matrix & A,const stl_matrix & B)217   static inline real norm_diff(const stl_matrix & A, const stl_matrix & B)
218   {
219     int N=A[0].size();
220     real somme=0.0;
221     real somme2=0.0;
222 
223     for (int i=0;i<N;i++){
224       for (int j=0;j<N;j++){
225         real diff=A[i][j] - B[i][j];
226         somme += diff*diff;
227         somme2 += A[i][j]*A[i][j];
228       }
229     }
230 
231     return somme/somme2;
232   }
233 
display_vector(const stl_vector & A)234   static inline void display_vector(const stl_vector & A)
235   {
236     int N=A.size();
237     for (int i=0;i<N;i++){
238       INFOS("A["<<i<<"]="<<A[i]<<endl);
239     }
240   }
241 
242 };
243 
244 #endif
245