mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-27 07:29:52 +08:00
128 lines
3.3 KiB
C++
128 lines
3.3 KiB
C++
//=====================================================
|
|
// File : action_axpby.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_AXPBY
|
|
#define ACTION_AXPBY
|
|
#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_axpby {
|
|
|
|
public :
|
|
|
|
// Ctor
|
|
Action_axpby( int size ):_size(size),_alpha(0.5),_beta(0.95)
|
|
{
|
|
MESSAGE("Action_axpby Ctor");
|
|
|
|
// STL vector initialization
|
|
init_vector<pseudo_random>(X_stl,_size);
|
|
init_vector<pseudo_random>(Y_stl,_size);
|
|
init_vector<null_function>(resu_stl,_size);
|
|
|
|
// generic matrix and vector initialization
|
|
Interface::vector_from_stl(X_ref,X_stl);
|
|
Interface::vector_from_stl(Y_ref,Y_stl);
|
|
|
|
Interface::vector_from_stl(X,X_stl);
|
|
Interface::vector_from_stl(Y,Y_stl);
|
|
}
|
|
|
|
// invalidate copy ctor
|
|
Action_axpby( const Action_axpby & )
|
|
{
|
|
INFOS("illegal call to Action_axpby Copy Ctor");
|
|
exit(1);
|
|
}
|
|
|
|
// Dtor
|
|
~Action_axpby( void ){
|
|
MESSAGE("Action_axpby Dtor");
|
|
|
|
// deallocation
|
|
Interface::free_vector(X_ref);
|
|
Interface::free_vector(Y_ref);
|
|
|
|
Interface::free_vector(X);
|
|
Interface::free_vector(Y);
|
|
}
|
|
|
|
// action name
|
|
static inline std::string name( void )
|
|
{
|
|
return "axpby_"+Interface::name();
|
|
}
|
|
|
|
double nb_op_base( void ){
|
|
return 3.0*_size;
|
|
}
|
|
|
|
inline void initialize( void ){
|
|
Interface::copy_vector(X_ref,X,_size);
|
|
Interface::copy_vector(Y_ref,Y,_size);
|
|
}
|
|
|
|
inline void calculate( void ) {
|
|
BTL_ASM_COMMENT("mybegin axpby");
|
|
Interface::axpby(_alpha,X,_beta,Y,_size);
|
|
BTL_ASM_COMMENT("myend axpby");
|
|
}
|
|
|
|
void check_result( void ){
|
|
if (_size>128) return;
|
|
// calculation check
|
|
Interface::vector_to_stl(Y,resu_stl);
|
|
|
|
STL_interface<typename Interface::real_type>::axpby(_alpha,X_stl,_beta,Y_stl,_size);
|
|
|
|
typename Interface::real_type error=
|
|
STL_interface<typename Interface::real_type>::norm_diff(Y_stl,resu_stl);
|
|
|
|
if (error>1.e-6){
|
|
INFOS("WRONG CALCULATION...residual=" << error);
|
|
exit(2);
|
|
}
|
|
}
|
|
|
|
private :
|
|
|
|
typename Interface::stl_vector X_stl;
|
|
typename Interface::stl_vector Y_stl;
|
|
typename Interface::stl_vector resu_stl;
|
|
|
|
typename Interface::gene_vector X_ref;
|
|
typename Interface::gene_vector Y_ref;
|
|
|
|
typename Interface::gene_vector X;
|
|
typename Interface::gene_vector Y;
|
|
|
|
typename Interface::real_type _alpha;
|
|
typename Interface::real_type _beta;
|
|
|
|
int _size;
|
|
};
|
|
|
|
#endif
|