128 lines
3.3 KiB
C++
128 lines
3.3 KiB
C++
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//=====================================================
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// File : action_axpby.hh
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// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
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//=====================================================
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#ifndef ACTION_AXPBY
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#define ACTION_AXPBY
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#include "utilities.h"
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#include "STL_interface.hh"
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#include <string>
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#include "init/init_function.hh"
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#include "init/init_vector.hh"
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#include "init/init_matrix.hh"
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using namespace std;
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template<class Interface>
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class Action_axpby {
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public :
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// Ctor
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Action_axpby( int size ):_size(size),_alpha(0.5),_beta(0.95)
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{
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MESSAGE("Action_axpby Ctor");
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// STL vector initialization
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init_vector<pseudo_random>(X_stl,_size);
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init_vector<pseudo_random>(Y_stl,_size);
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init_vector<null_function>(resu_stl,_size);
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// generic matrix and vector initialization
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Interface::vector_from_stl(X_ref,X_stl);
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Interface::vector_from_stl(Y_ref,Y_stl);
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Interface::vector_from_stl(X,X_stl);
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Interface::vector_from_stl(Y,Y_stl);
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}
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// invalidate copy ctor
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Action_axpby( const Action_axpby & )
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{
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INFOS("illegal call to Action_axpby Copy Ctor");
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exit(1);
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}
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// Dtor
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~Action_axpby( void ){
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MESSAGE("Action_axpby Dtor");
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// deallocation
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Interface::free_vector(X_ref);
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Interface::free_vector(Y_ref);
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Interface::free_vector(X);
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Interface::free_vector(Y);
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}
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// action name
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static inline std::string name( void )
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{
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return "axpby_"+Interface::name();
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}
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double nb_op_base( void ){
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return 3.0*_size;
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}
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inline void initialize( void ){
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Interface::copy_vector(X_ref,X,_size);
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Interface::copy_vector(Y_ref,Y,_size);
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}
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inline void calculate( void ) {
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BTL_ASM_COMMENT("mybegin axpby");
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Interface::axpby(_alpha,X,_beta,Y,_size);
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BTL_ASM_COMMENT("myend axpby");
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}
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void check_result( void ){
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if (_size>128) return;
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// calculation check
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Interface::vector_to_stl(Y,resu_stl);
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STL_interface<typename Interface::real_type>::axpby(_alpha,X_stl,_beta,Y_stl,_size);
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typename Interface::real_type error=
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STL_interface<typename Interface::real_type>::norm_diff(Y_stl,resu_stl);
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if (error>1.e-6){
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INFOS("WRONG CALCULATION...residual=" << error);
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exit(2);
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}
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}
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private :
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typename Interface::stl_vector X_stl;
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typename Interface::stl_vector Y_stl;
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typename Interface::stl_vector resu_stl;
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typename Interface::gene_vector X_ref;
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typename Interface::gene_vector Y_ref;
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typename Interface::gene_vector X;
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typename Interface::gene_vector Y;
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typename Interface::real_type _alpha;
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typename Interface::real_type _beta;
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int _size;
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};
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#endif
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