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      1 //=====================================================
      2 // File   :  action_syr2.hh
      3 // Author :  L. Plagne <laurent.plagne (at) 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_SYR2
     21 #define ACTION_SYR2
     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_syr2 {
     33 
     34 public :
     35 
     36   // Ctor
     37 
     38   BTL_DONT_INLINE Action_syr2( int size ):_size(size)
     39   {
     40     // STL matrix and vector initialization
     41     typename Interface::stl_matrix tmp;
     42     init_matrix<pseudo_random>(A_stl,_size);
     43     init_vector<pseudo_random>(B_stl,_size);
     44     init_vector<pseudo_random>(X_stl,_size);
     45     init_vector<null_function>(resu_stl,_size);
     46 
     47     // generic matrix and vector initialization
     48     Interface::matrix_from_stl(A_ref,A_stl);
     49     Interface::matrix_from_stl(A,A_stl);
     50     Interface::vector_from_stl(B_ref,B_stl);
     51     Interface::vector_from_stl(B,B_stl);
     52     Interface::vector_from_stl(X_ref,X_stl);
     53     Interface::vector_from_stl(X,X_stl);
     54   }
     55 
     56   // invalidate copy ctor
     57   Action_syr2( const  Action_syr2 & )
     58   {
     59     INFOS("illegal call to Action_syr2 Copy Ctor");
     60     exit(1);
     61   }
     62 
     63   // Dtor
     64   BTL_DONT_INLINE ~Action_syr2( void ){
     65     Interface::free_matrix(A,_size);
     66     Interface::free_vector(B);
     67     Interface::free_vector(X);
     68     Interface::free_matrix(A_ref,_size);
     69     Interface::free_vector(B_ref);
     70     Interface::free_vector(X_ref);
     71   }
     72 
     73   // action name
     74 
     75   static inline std::string name( void )
     76   {
     77     return "syr2_" + Interface::name();
     78   }
     79 
     80   double nb_op_base( void ){
     81     return 2.0*_size*_size;
     82   }
     83 
     84   BTL_DONT_INLINE  void initialize( void ){
     85     Interface::copy_matrix(A_ref,A,_size);
     86     Interface::copy_vector(B_ref,B,_size);
     87     Interface::copy_vector(X_ref,X,_size);
     88   }
     89 
     90   BTL_DONT_INLINE void calculate( void ) {
     91       BTL_ASM_COMMENT("#begin syr2");
     92       Interface::syr2(A,B,X,_size);
     93       BTL_ASM_COMMENT("end syr2");
     94   }
     95 
     96   BTL_DONT_INLINE void check_result( void ){
     97     // calculation check
     98     Interface::vector_to_stl(X,resu_stl);
     99 
    100     STL_interface<typename Interface::real_type>::syr2(A_stl,B_stl,X_stl,_size);
    101 
    102     typename Interface::real_type error=
    103       STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl);
    104 
    105     if (error>1.e-3){
    106       INFOS("WRONG CALCULATION...residual=" << error);
    107 //       exit(0);
    108     }
    109 
    110   }
    111 
    112 private :
    113 
    114   typename Interface::stl_matrix A_stl;
    115   typename Interface::stl_vector B_stl;
    116   typename Interface::stl_vector X_stl;
    117   typename Interface::stl_vector resu_stl;
    118 
    119   typename Interface::gene_matrix A_ref;
    120   typename Interface::gene_vector B_ref;
    121   typename Interface::gene_vector X_ref;
    122 
    123   typename Interface::gene_matrix A;
    124   typename Interface::gene_vector B;
    125   typename Interface::gene_vector X;
    126 
    127 
    128   int _size;
    129 
    130 };
    131 
    132 
    133 #endif
    134