action_cholesky.hh
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1 //=====================================================
2 // File : action_cholesky.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_CHOLESKY
20 #define ACTION_CHOLESKY
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>
32 
33 public :
34 
35  // Ctor
36 
37  Action_cholesky( int size ):_size(size)
38  {
39  MESSAGE("Action_cholesky Ctor");
40 
41  // STL mat/vec initialization
42  init_matrix_symm<pseudo_random>(X_stl,_size);
43  init_matrix<null_function>(C_stl,_size);
44 
45  // make sure X is invertible
46  for (int i=0; i<_size; ++i)
47  X_stl[i][i] = std::abs(X_stl[i][i]) * 1e2 + 100;
48 
49  // generic matrix and vector initialization
50  Interface::matrix_from_stl(X_ref,X_stl);
51  Interface::matrix_from_stl(X,X_stl);
52  Interface::matrix_from_stl(C,C_stl);
53 
54  _cost = 0;
55  for (int j=0; j<_size; ++j)
56  {
57  double r = std::max(_size - j -1,0);
58  _cost += 2*(r*j+r+j);
59  }
60  }
61 
62  // invalidate copy ctor
63 
65  {
66  INFOS("illegal call to Action_cholesky Copy Ctor");
67  exit(1);
68  }
69 
70  // Dtor
71 
73 
74  MESSAGE("Action_cholesky Dtor");
75 
76  // deallocation
77  Interface::free_matrix(X_ref,_size);
78  Interface::free_matrix(X,_size);
79  Interface::free_matrix(C,_size);
80  }
81 
82  // action name
83 
84  static inline std::string name( void )
85  {
86  return "cholesky_"+Interface::name();
87  }
88 
89  double nb_op_base( void ){
90  return _cost;
91  }
92 
93  inline void initialize( void ){
94  Interface::copy_matrix(X_ref,X,_size);
95  }
96 
97  inline void calculate( void ) {
98  Interface::cholesky(X,C,_size);
99  }
100 
101  void check_result( void ){
102  // calculation check
103 // STL_interface<typename Interface::real_type>::cholesky(X_stl,C_stl,_size);
104 //
105 // typename Interface::real_type error=
106 // STL_interface<typename Interface::real_type>::norm_diff(C_stl,resu_stl);
107 //
108 // if (error>1.e-6){
109 // INFOS("WRONG CALCULATION...residual=" << error);
110 // exit(0);
111 // }
112 
113  }
114 
115 private :
116 
117  typename Interface::stl_matrix X_stl;
118  typename Interface::stl_matrix C_stl;
119 
120  typename Interface::gene_matrix X_ref;
121  typename Interface::gene_matrix X;
122  typename Interface::gene_matrix C;
123 
124  int _size;
125  double _cost;
126 };
127 
128 #endif
void calculate(void)
#define max(a, b)
Definition: datatypes.h:20
Action_cholesky(const Action_cholesky &)
void check_result(void)
void initialize(void)
Interface::gene_matrix X
Definition: BFloat16.h:88
Interface::gene_matrix X_ref
Interface::gene_matrix C
Scalar Scalar int size
Definition: benchVecAdd.cpp:17
Interface::stl_matrix C_stl
Action_cholesky(int size)
Interface::stl_matrix X_stl
double nb_op_base(void)
Matrix< Scalar, Dynamic, Dynamic > C
Definition: bench_gemm.cpp:50
void cholesky(const MatrixType &m)
static std::string name(void)
void copy_matrix(MatrixType &m)
#define X
Definition: icosphere.cpp:20
#define abs(x)
Definition: datatypes.h:17
std::ptrdiff_t j


gtsam
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autogenerated on Tue Jul 4 2023 02:33:53