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