1 //===================================================== 2 // File : action_axpby.hh 3 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr> 4 //===================================================== 5 // 6 // This program is free software; you can redistribute it and/or 7 // modify it under the terms of the GNU General Public License 8 // as published by the Free Software Foundation; either version 2 9 // of the License, or (at your option) any later version. 10 // 11 // This program is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 // You should have received a copy of the GNU General Public License 16 // along with this program; if not, write to the Free Software 17 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 // 19 #ifndef ACTION_AXPBY 20 #define ACTION_AXPBY 21 #include "utilities.h" 22 #include "STL_interface.hh" 23 #include <string> 24 #include "init/init_function.hh" 25 #include "init/init_vector.hh" 26 #include "init/init_matrix.hh" 27 28 using namespace std; 29 30 template<class Interface> 31 class Action_axpby { 32 33 public : 34 35 // Ctor Action_axpby(int size)36 Action_axpby( int size ):_size(size),_alpha(0.5),_beta(0.95) 37 { 38 MESSAGE("Action_axpby Ctor"); 39 40 // STL vector initialization 41 init_vector<pseudo_random>(X_stl,_size); 42 init_vector<pseudo_random>(Y_stl,_size); 43 init_vector<null_function>(resu_stl,_size); 44 45 // generic matrix and vector initialization 46 Interface::vector_from_stl(X_ref,X_stl); 47 Interface::vector_from_stl(Y_ref,Y_stl); 48 49 Interface::vector_from_stl(X,X_stl); 50 Interface::vector_from_stl(Y,Y_stl); 51 } 52 53 // invalidate copy ctor Action_axpby(const Action_axpby &)54 Action_axpby( const Action_axpby & ) 55 { 56 INFOS("illegal call to Action_axpby Copy Ctor"); 57 exit(1); 58 } 59 60 // Dtor ~Action_axpby(void)61 ~Action_axpby( void ){ 62 MESSAGE("Action_axpby Dtor"); 63 64 // deallocation 65 Interface::free_vector(X_ref); 66 Interface::free_vector(Y_ref); 67 68 Interface::free_vector(X); 69 Interface::free_vector(Y); 70 } 71 72 // action name name(void)73 static inline std::string name( void ) 74 { 75 return "axpby_"+Interface::name(); 76 } 77 nb_op_base(void)78 double nb_op_base( void ){ 79 return 3.0*_size; 80 } 81 initialize(void)82 inline void initialize( void ){ 83 Interface::copy_vector(X_ref,X,_size); 84 Interface::copy_vector(Y_ref,Y,_size); 85 } 86 calculate(void)87 inline void calculate( void ) { 88 BTL_ASM_COMMENT("mybegin axpby"); 89 Interface::axpby(_alpha,X,_beta,Y,_size); 90 BTL_ASM_COMMENT("myend axpby"); 91 } 92 check_result(void)93 void check_result( void ){ 94 if (_size>128) return; 95 // calculation check 96 Interface::vector_to_stl(Y,resu_stl); 97 98 STL_interface<typename Interface::real_type>::axpby(_alpha,X_stl,_beta,Y_stl,_size); 99 100 typename Interface::real_type error= 101 STL_interface<typename Interface::real_type>::norm_diff(Y_stl,resu_stl); 102 103 if (error>1.e-6){ 104 INFOS("WRONG CALCULATION...residual=" << error); 105 exit(2); 106 } 107 } 108 109 private : 110 111 typename Interface::stl_vector X_stl; 112 typename Interface::stl_vector Y_stl; 113 typename Interface::stl_vector resu_stl; 114 115 typename Interface::gene_vector X_ref; 116 typename Interface::gene_vector Y_ref; 117 118 typename Interface::gene_vector X; 119 typename Interface::gene_vector Y; 120 121 typename Interface::real_type _alpha; 122 typename Interface::real_type _beta; 123 124 int _size; 125 }; 126 127 #endif 128