1 | //=====================================================
|
---|
2 | // File : action_axpby.hh
|
---|
3 | // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@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_AXPBY
|
---|
20 | #define ACTION_AXPBY
|
---|
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_axpby {
|
---|
32 |
|
---|
33 | public :
|
---|
34 |
|
---|
35 | // Ctor
|
---|
36 | Action_axpby( int size ):_size(size),_alpha(0.5),_beta(0.95)
|
---|
37 | {
|
---|
38 | MESSAGE("Action_axpby Ctor");
|
---|
39 |
|
---|
40 | // STL vector initialization
|
---|
41 | init_vector<pseudo_random>(X_stl,_size);
|
---|
42 | init_vector<pseudo_random>(Y_stl,_size);
|
---|
43 | init_vector<null_function>(resu_stl,_size);
|
---|
44 |
|
---|
45 | // generic matrix and vector initialization
|
---|
46 | Interface::vector_from_stl(X_ref,X_stl);
|
---|
47 | Interface::vector_from_stl(Y_ref,Y_stl);
|
---|
48 |
|
---|
49 | Interface::vector_from_stl(X,X_stl);
|
---|
50 | Interface::vector_from_stl(Y,Y_stl);
|
---|
51 | }
|
---|
52 |
|
---|
53 | // invalidate copy ctor
|
---|
54 | Action_axpby( const Action_axpby & )
|
---|
55 | {
|
---|
56 | INFOS("illegal call to Action_axpby Copy Ctor");
|
---|
57 | exit(1);
|
---|
58 | }
|
---|
59 |
|
---|
60 | // Dtor
|
---|
61 | ~Action_axpby( void ){
|
---|
62 | MESSAGE("Action_axpby Dtor");
|
---|
63 |
|
---|
64 | // deallocation
|
---|
65 | Interface::free_vector(X_ref);
|
---|
66 | Interface::free_vector(Y_ref);
|
---|
67 |
|
---|
68 | Interface::free_vector(X);
|
---|
69 | Interface::free_vector(Y);
|
---|
70 | }
|
---|
71 |
|
---|
72 | // action name
|
---|
73 | static inline std::string name( void )
|
---|
74 | {
|
---|
75 | return "axpby_"+Interface::name();
|
---|
76 | }
|
---|
77 |
|
---|
78 | double nb_op_base( void ){
|
---|
79 | return 3.0*_size;
|
---|
80 | }
|
---|
81 |
|
---|
82 | inline void initialize( void ){
|
---|
83 | Interface::copy_vector(X_ref,X,_size);
|
---|
84 | Interface::copy_vector(Y_ref,Y,_size);
|
---|
85 | }
|
---|
86 |
|
---|
87 | inline void calculate( void ) {
|
---|
88 | BTL_ASM_COMMENT("mybegin axpby");
|
---|
89 | Interface::axpby(_alpha,X,_beta,Y,_size);
|
---|
90 | BTL_ASM_COMMENT("myend axpby");
|
---|
91 | }
|
---|
92 |
|
---|
93 | void check_result( void ){
|
---|
94 | if (_size>128) return;
|
---|
95 | // calculation check
|
---|
96 | Interface::vector_to_stl(Y,resu_stl);
|
---|
97 |
|
---|
98 | STL_interface<typename Interface::real_type>::axpby(_alpha,X_stl,_beta,Y_stl,_size);
|
---|
99 |
|
---|
100 | typename Interface::real_type error=
|
---|
101 | STL_interface<typename Interface::real_type>::norm_diff(Y_stl,resu_stl);
|
---|
102 |
|
---|
103 | if (error>1.e-6){
|
---|
104 | INFOS("WRONG CALCULATION...residual=" << error);
|
---|
105 | exit(2);
|
---|
106 | }
|
---|
107 | }
|
---|
108 |
|
---|
109 | private :
|
---|
110 |
|
---|
111 | typename Interface::stl_vector X_stl;
|
---|
112 | typename Interface::stl_vector Y_stl;
|
---|
113 | typename Interface::stl_vector resu_stl;
|
---|
114 |
|
---|
115 | typename Interface::gene_vector X_ref;
|
---|
116 | typename Interface::gene_vector Y_ref;
|
---|
117 |
|
---|
118 | typename Interface::gene_vector X;
|
---|
119 | typename Interface::gene_vector Y;
|
---|
120 |
|
---|
121 | typename Interface::real_type _alpha;
|
---|
122 | typename Interface::real_type _beta;
|
---|
123 |
|
---|
124 | int _size;
|
---|
125 | };
|
---|
126 |
|
---|
127 | #endif
|
---|