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      1 //=====================================================
      2 // File   :  action_symv.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_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 
     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 
     60   Action_symv( const  Action_symv & )
     61   {
     62     INFOS("illegal call to Action_symv Copy Ctor");
     63     exit(1);
     64   }
     65 
     66   // Dtor
     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 
     78   static inline std::string name( void )
     79   {
     80     return "symv_" + Interface::name();
     81   }
     82 
     83   double nb_op_base( void ){
     84     return 2.0*_size*_size;
     85   }
     86 
     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 
     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 
    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