129 lines
3.1 KiB
C++
129 lines
3.1 KiB
C++
|
//=====================================================
|
||
|
|
// File : action_cholesky.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_CHOLESKY
|
||
|
|
#define ACTION_CHOLESKY
|
||
|
|
#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_cholesky {
|
||
|
|
|
||
|
|
public :
|
||
|
|
|
||
|
|
// Ctor
|
||
|
|
|
||
|
|
Action_cholesky( int size ):_size(size)
|
||
|
|
{
|
||
|
|
MESSAGE("Action_cholesky Ctor");
|
||
|
|
|
||
|
|
// STL mat/vec initialization
|
||
|
|
init_matrix_symm<pseudo_random>(X_stl,_size);
|
||
|
|
init_matrix<null_function>(C_stl,_size);
|
||
|
|
|
||
|
|
// make sure X is invertible
|
||
|
|
for (int i=0; i<_size; ++i)
|
||
|
|
X_stl[i][i] = std::abs(X_stl[i][i]) * 1e2 + 100;
|
||
|
|
|
||
|
|
// generic matrix and vector initialization
|
||
|
|
Interface::matrix_from_stl(X_ref,X_stl);
|
||
|
|
Interface::matrix_from_stl(X,X_stl);
|
||
|
|
Interface::matrix_from_stl(C,C_stl);
|
||
|
|
|
||
|
|
_cost = 0;
|
||
|
|
for (int j=0; j<_size; ++j)
|
||
|
|
{
|
||
|
|
double r = std::max(_size - j -1,0);
|
||
|
|
_cost += 2*(r*j+r+j);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// invalidate copy ctor
|
||
|
|
|
||
|
|
Action_cholesky( const Action_cholesky & )
|
||
|
|
{
|
||
|
|
INFOS("illegal call to Action_cholesky Copy Ctor");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Dtor
|
||
|
|
|
||
|
|
~Action_cholesky( void ){
|
||
|
|
|
||
|
|
MESSAGE("Action_cholesky Dtor");
|
||
|
|
|
||
|
|
// deallocation
|
||
|
|
Interface::free_matrix(X_ref,_size);
|
||
|
|
Interface::free_matrix(X,_size);
|
||
|
|
Interface::free_matrix(C,_size);
|
||
|
|
}
|
||
|
|
|
||
|
|
// action name
|
||
|
|
|
||
|
|
static inline std::string name( void )
|
||
|
|
{
|
||
|
|
return "cholesky_"+Interface::name();
|
||
|
|
}
|
||
|
|
|
||
|
|
double nb_op_base( void ){
|
||
|
|
return _cost;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void initialize( void ){
|
||
|
|
Interface::copy_matrix(X_ref,X,_size);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void calculate( void ) {
|
||
|
|
Interface::cholesky(X,C,_size);
|
||
|
|
}
|
||
|
|
|
||
|
|
void check_result( void ){
|
||
|
|
// calculation check
|
||
|
|
// STL_interface<typename Interface::real_type>::cholesky(X_stl,C_stl,_size);
|
||
|
|
//
|
||
|
|
// typename Interface::real_type error=
|
||
|
|
// STL_interface<typename Interface::real_type>::norm_diff(C_stl,resu_stl);
|
||
|
|
//
|
||
|
|
// if (error>1.e-6){
|
||
|
|
// INFOS("WRONG CALCULATION...residual=" << error);
|
||
|
|
// exit(0);
|
||
|
|
// }
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
private :
|
||
|
|
|
||
|
|
typename Interface::stl_matrix X_stl;
|
||
|
|
typename Interface::stl_matrix C_stl;
|
||
|
|
|
||
|
|
typename Interface::gene_matrix X_ref;
|
||
|
|
typename Interface::gene_matrix X;
|
||
|
|
typename Interface::gene_matrix C;
|
||
|
|
|
||
|
|
int _size;
|
||
|
|
double _cost;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|