| //===================================================== |
| // File : action_trisolve.hh |
| // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr> |
| //===================================================== |
| // |
| // This program is free software; you can redistribute it and/or |
| // modify it under the terms of the GNU General Public License |
| // as published by the Free Software Foundation; either version 2 |
| // of the License, or (at your option) any later version. |
| // |
| // This program is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| // |
| #ifndef ACTION_TRISOLVE |
| #define ACTION_TRISOLVE |
| #include "utilities.h" |
| #include "STL_interface.hh" |
| #include <string> |
| #include "init/init_function.hh" |
| #include "init/init_vector.hh" |
| #include "init/init_matrix.hh" |
| |
| using namespace std; |
| |
| template<class Interface> |
| class Action_trisolve { |
| |
| public : |
| |
| // Ctor |
| |
| Action_trisolve( int size ):_size(size) |
| { |
| MESSAGE("Action_trisolve Ctor"); |
| |
| // STL vector initialization |
| init_matrix<pseudo_random>(L_stl,_size); |
| init_vector<pseudo_random>(B_stl,_size); |
| init_vector<null_function>(X_stl,_size); |
| for (int j=0; j<_size; ++j) |
| { |
| for (int i=0; i<j; ++i) |
| L_stl[j][i] = 0; |
| L_stl[j][j] += 3; |
| } |
| |
| init_vector<null_function>(resu_stl,_size); |
| |
| // generic matrix and vector initialization |
| Interface::matrix_from_stl(L,L_stl); |
| Interface::vector_from_stl(X,X_stl); |
| Interface::vector_from_stl(B,B_stl); |
| |
| _cost = 0; |
| for (int j=0; j<_size; ++j) |
| { |
| _cost += 2*j + 1; |
| } |
| } |
| |
| // invalidate copy ctor |
| |
| Action_trisolve( const Action_trisolve & ) |
| { |
| INFOS("illegal call to Action_trisolve Copy Ctor"); |
| exit(1); |
| } |
| |
| // Dtor |
| |
| ~Action_trisolve( void ){ |
| |
| MESSAGE("Action_trisolve Dtor"); |
| |
| // deallocation |
| Interface::free_matrix(L,_size); |
| Interface::free_vector(B); |
| Interface::free_vector(X); |
| } |
| |
| // action name |
| |
| static inline std::string name( void ) |
| { |
| return "trisolve_vector_"+Interface::name(); |
| } |
| |
| double nb_op_base( void ){ |
| return _cost; |
| } |
| |
| inline void initialize( void ){ |
| //Interface::copy_vector(X_ref,X,_size); |
| } |
| |
| inline void calculate( void ) { |
| Interface::trisolve_lower(L,B,X,_size); |
| } |
| |
| void check_result(){ |
| if (_size>128) return; |
| // calculation check |
| Interface::vector_to_stl(X,resu_stl); |
| |
| STL_interface<typename Interface::real_type>::trisolve_lower(L_stl,B_stl,X_stl,_size); |
| |
| typename Interface::real_type error= |
| STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl); |
| |
| if (error>1.e-4){ |
| INFOS("WRONG CALCULATION...residual=" << error); |
| exit(2); |
| } //else INFOS("CALCULATION OK...residual=" << error); |
| |
| } |
| |
| private : |
| |
| typename Interface::stl_matrix L_stl; |
| typename Interface::stl_vector X_stl; |
| typename Interface::stl_vector B_stl; |
| typename Interface::stl_vector resu_stl; |
| |
| typename Interface::gene_matrix L; |
| typename Interface::gene_vector X; |
| typename Interface::gene_vector B; |
| |
| int _size; |
| double _cost; |
| }; |
| |
| #endif |