[136] | 1 | //=====================================================
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| 2 | // File : action_axpby.hh
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| 3 | // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
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| 4 | //=====================================================
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| 5 | //
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| 6 | // This program is free software; you can redistribute it and/or
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| 7 | // modify it under the terms of the GNU General Public License
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| 8 | // as published by the Free Software Foundation; either version 2
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| 9 | // of the License, or (at your option) any later version.
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| 10 | //
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| 11 | // This program is distributed in the hope that it will be useful,
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| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | // GNU General Public License for more details.
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| 15 | // You should have received a copy of the GNU General Public License
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| 16 | // along with this program; if not, write to the Free Software
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| 17 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 18 | //
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| 19 | #ifndef ACTION_AXPBY
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| 20 | #define ACTION_AXPBY
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| 21 | #include "utilities.h"
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| 22 | #include "STL_interface.hh"
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| 23 | #include <string>
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| 24 | #include "init/init_function.hh"
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| 25 | #include "init/init_vector.hh"
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| 26 | #include "init/init_matrix.hh"
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| 27 |
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| 28 | using namespace std;
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| 29 |
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| 30 | template<class Interface>
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| 31 | class Action_axpby {
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| 32 |
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| 33 | public :
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| 34 |
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| 35 | // Ctor
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| 36 | Action_axpby( int size ):_size(size),_alpha(0.5),_beta(0.95)
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| 37 | {
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| 38 | MESSAGE("Action_axpby Ctor");
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| 39 |
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| 40 | // STL vector initialization
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| 41 | init_vector<pseudo_random>(X_stl,_size);
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| 42 | init_vector<pseudo_random>(Y_stl,_size);
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| 43 | init_vector<null_function>(resu_stl,_size);
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| 44 |
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| 45 | // generic matrix and vector initialization
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| 46 | Interface::vector_from_stl(X_ref,X_stl);
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| 47 | Interface::vector_from_stl(Y_ref,Y_stl);
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| 48 |
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| 49 | Interface::vector_from_stl(X,X_stl);
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| 50 | Interface::vector_from_stl(Y,Y_stl);
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| 51 | }
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| 52 |
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| 53 | // invalidate copy ctor
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| 54 | Action_axpby( const Action_axpby & )
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| 55 | {
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| 56 | INFOS("illegal call to Action_axpby Copy Ctor");
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| 57 | exit(1);
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| 58 | }
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| 59 |
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| 60 | // Dtor
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| 61 | ~Action_axpby( void ){
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| 62 | MESSAGE("Action_axpby Dtor");
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| 63 |
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| 64 | // deallocation
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| 65 | Interface::free_vector(X_ref);
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| 66 | Interface::free_vector(Y_ref);
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| 67 |
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| 68 | Interface::free_vector(X);
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| 69 | Interface::free_vector(Y);
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| 70 | }
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| 71 |
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| 72 | // action name
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| 73 | static inline std::string name( void )
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| 74 | {
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| 75 | return "axpby_"+Interface::name();
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| 76 | }
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| 77 |
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| 78 | double nb_op_base( void ){
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| 79 | return 3.0*_size;
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| 80 | }
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| 81 |
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| 82 | inline void initialize( void ){
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| 83 | Interface::copy_vector(X_ref,X,_size);
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| 84 | Interface::copy_vector(Y_ref,Y,_size);
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| 85 | }
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| 86 |
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| 87 | inline void calculate( void ) {
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| 88 | BTL_ASM_COMMENT("mybegin axpby");
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| 89 | Interface::axpby(_alpha,X,_beta,Y,_size);
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| 90 | BTL_ASM_COMMENT("myend axpby");
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| 91 | }
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| 92 |
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| 93 | void check_result( void ){
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| 94 | if (_size>128) return;
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| 95 | // calculation check
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| 96 | Interface::vector_to_stl(Y,resu_stl);
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| 97 |
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| 98 | STL_interface<typename Interface::real_type>::axpby(_alpha,X_stl,_beta,Y_stl,_size);
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| 99 |
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| 100 | typename Interface::real_type error=
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| 101 | STL_interface<typename Interface::real_type>::norm_diff(Y_stl,resu_stl);
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| 102 |
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| 103 | if (error>1.e-6){
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| 104 | INFOS("WRONG CALCULATION...residual=" << error);
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| 105 | exit(2);
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| 106 | }
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| 107 | }
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| 108 |
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| 109 | private :
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| 110 |
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| 111 | typename Interface::stl_vector X_stl;
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| 112 | typename Interface::stl_vector Y_stl;
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| 113 | typename Interface::stl_vector resu_stl;
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| 114 |
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| 115 | typename Interface::gene_vector X_ref;
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| 116 | typename Interface::gene_vector Y_ref;
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| 117 |
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| 118 | typename Interface::gene_vector X;
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| 119 | typename Interface::gene_vector Y;
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| 120 |
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| 121 | typename Interface::real_type _alpha;
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| 122 | typename Interface::real_type _beta;
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| 123 |
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| 124 | int _size;
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| 125 | };
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| 126 |
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| 127 | #endif
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