1 //===================================================== 2 // File : action_lu_decomp.hh 3 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud (at) 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_PARTIAL_LU 20 #define ACTION_PARTIAL_LU 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_partial_lu { 32 33 public : 34 35 // Ctor 36 37 Action_partial_lu( int size ):_size(size) 38 { 39 MESSAGE("Action_partial_lu Ctor"); 40 41 // STL vector initialization 42 init_matrix<pseudo_random>(X_stl,_size); 43 init_matrix<null_function>(C_stl,_size); 44 45 // make sure X is invertible 46 for (int i=0; i<_size; ++i) 47 X_stl[i][i] = X_stl[i][i] * 1e2 + 1; 48 49 // generic matrix and vector initialization 50 Interface::matrix_from_stl(X_ref,X_stl); 51 Interface::matrix_from_stl(X,X_stl); 52 Interface::matrix_from_stl(C,C_stl); 53 54 _cost = 2.0*size*size*size/3.0 + size*size; 55 } 56 57 // invalidate copy ctor 58 59 Action_partial_lu( const Action_partial_lu & ) 60 { 61 INFOS("illegal call to Action_partial_lu Copy Ctor"); 62 exit(1); 63 } 64 65 // Dtor 66 67 ~Action_partial_lu( void ){ 68 69 MESSAGE("Action_partial_lu Dtor"); 70 71 // deallocation 72 Interface::free_matrix(X_ref,_size); 73 Interface::free_matrix(X,_size); 74 Interface::free_matrix(C,_size); 75 } 76 77 // action name 78 79 static inline std::string name( void ) 80 { 81 return "partial_lu_decomp_"+Interface::name(); 82 } 83 84 double nb_op_base( void ){ 85 return _cost; 86 } 87 88 inline void initialize( void ){ 89 Interface::copy_matrix(X_ref,X,_size); 90 } 91 92 inline void calculate( void ) { 93 Interface::partial_lu_decomp(X,C,_size); 94 } 95 96 void check_result( void ){ 97 // calculation check 98 // Interface::matrix_to_stl(C,resu_stl); 99 100 // STL_interface<typename Interface::real_type>::lu_decomp(X_stl,C_stl,_size); 101 // 102 // typename Interface::real_type error= 103 // STL_interface<typename Interface::real_type>::norm_diff(C_stl,resu_stl); 104 // 105 // if (error>1.e-6){ 106 // INFOS("WRONG CALCULATION...residual=" << error); 107 // exit(0); 108 // } 109 110 } 111 112 private : 113 114 typename Interface::stl_matrix X_stl; 115 typename Interface::stl_matrix C_stl; 116 117 typename Interface::gene_matrix X_ref; 118 typename Interface::gene_matrix X; 119 typename Interface::gene_matrix C; 120 121 int _size; 122 double _cost; 123 }; 124 125 #endif 126
