action_trisolve.hh
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1 //=====================================================
2 // File : action_trisolve.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_TRISOLVE
20 #define ACTION_TRISOLVE
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_trisolve( int size ):_size(size)
38  {
39  MESSAGE("Action_trisolve Ctor");
40 
41  // STL vector initialization
42  init_matrix<pseudo_random>(L_stl,_size);
43  init_vector<pseudo_random>(B_stl,_size);
44  init_vector<null_function>(X_stl,_size);
45  for (int j=0; j<_size; ++j)
46  {
47  for (int i=0; i<j; ++i)
48  L_stl[j][i] = 0;
49  L_stl[j][j] += 3;
50  }
51 
52  init_vector<null_function>(resu_stl,_size);
53 
54  // generic matrix and vector initialization
55  Interface::matrix_from_stl(L,L_stl);
56  Interface::vector_from_stl(X,X_stl);
57  Interface::vector_from_stl(B,B_stl);
58 
59  _cost = 0;
60  for (int j=0; j<_size; ++j)
61  {
62  _cost += 2*j + 1;
63  }
64  }
65 
66  // invalidate copy ctor
67 
69  {
70  INFOS("illegal call to Action_trisolve Copy Ctor");
71  exit(1);
72  }
73 
74  // Dtor
75 
77 
78  MESSAGE("Action_trisolve Dtor");
79 
80  // deallocation
81  Interface::free_matrix(L,_size);
82  Interface::free_vector(B);
83  Interface::free_vector(X);
84  }
85 
86  // action name
87 
88  static inline std::string name( void )
89  {
90  return "trisolve_vector_"+Interface::name();
91  }
92 
93  double nb_op_base( void ){
94  return _cost;
95  }
96 
97  inline void initialize( void ){
98  //Interface::copy_vector(X_ref,X,_size);
99  }
100 
101  inline void calculate( void ) {
102  Interface::trisolve_lower(L,B,X,_size);
103  }
104 
105  void check_result(){
106  if (_size>128) return;
107  // calculation check
108  Interface::vector_to_stl(X,resu_stl);
109 
111 
112  typename Interface::real_type error=
114 
115  if (error>1.e-4){
116  INFOS("WRONG CALCULATION...residual=" << error);
117  exit(2);
118  } //else INFOS("CALCULATION OK...residual=" << error);
119 
120  }
121 
122 private :
123 
124  typename Interface::stl_matrix L_stl;
125  typename Interface::stl_vector X_stl;
126  typename Interface::stl_vector B_stl;
127  typename Interface::stl_vector resu_stl;
128 
129  typename Interface::gene_matrix L;
130  typename Interface::gene_vector X;
131  typename Interface::gene_vector B;
132 
133  int _size;
134  double _cost;
135 };
136 
137 #endif
Interface::stl_matrix L_stl
Matrix< SCALARB, Dynamic, Dynamic, opt_B > B
Definition: bench_gemm.cpp:49
static void trisolve_lower(const gene_matrix &L, const gene_vector &B, gene_vector &X, int N)
void calculate(void)
MatrixXd L
Definition: LLT_example.cpp:6
Definition: BFloat16.h:88
Action_trisolve(int size)
static std::string name(void)
Scalar Scalar int size
Definition: benchVecAdd.cpp:17
Interface::gene_vector B
Interface::stl_vector X_stl
Action_trisolve(const Action_trisolve &)
Interface::gene_vector X
Array< double, 1, 3 > e(1./3., 0.5, 2.)
Interface::stl_vector B_stl
Interface::stl_vector resu_stl
Interface::gene_matrix L
static double error
Definition: testRot3.cpp:37
static real norm_diff(const stl_vector &A, const stl_vector &B)
void initialize(void)
#define X
Definition: icosphere.cpp:20
std::ptrdiff_t j
double nb_op_base(void)


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autogenerated on Tue Jul 4 2023 02:33:53