BornAgain  1.19.0
Simulate and fit neutron and x-ray scattering at grazing incidence
Kernel.h
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1 // ************************************************************************************************
2 //
3 // BornAgain: simulate and fit reflection and scattering
4 //
5 //! @file Fit/Kernel/Kernel.h
6 //! @brief Defines class Kernel.
7 //!
8 //! @homepage http://www.bornagainproject.org
9 //! @license GNU General Public License v3 or higher (see COPYING)
10 //! @copyright Forschungszentrum Jülich GmbH 2018
11 //! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
12 //
13 // ************************************************************************************************
14 
15 #ifdef SWIG
16 #error no need to expose this header to Swig
17 #endif
18 
19 #ifndef USER_API
20 #ifndef BORNAGAIN_FIT_KERNEL_KERNEL_H
21 #define BORNAGAIN_FIT_KERNEL_KERNEL_H
22 
24 #include "Fit/Minimizer/Types.h"
26 #include <functional>
27 #include <memory>
28 #include <vector>
29 
30 class IMinimizer;
31 
32 namespace mumufit {
33 
34 //! A main class to run fitting.
35 //! @ingroup fitting
36 
37 class Kernel {
38 public:
39  Kernel();
41 
42  void setMinimizer(const std::string& minimizerName, const std::string& algorithmName = "",
43  const std::string& options = "");
44 
45  void setMinimizer(IMinimizer* minimizer);
46 
47  MinimizerResult minimize(fcn_scalar_t fcn, const Parameters& parameters);
48  MinimizerResult minimize(fcn_residual_t fcn, const Parameters& parameters);
49 
50 private:
51  void setParameters(const Parameters& parameters);
52 
54  std::unique_ptr<IMinimizer> m_minimizer;
56 };
57 
58 } // namespace mumufit
59 
60 #endif // BORNAGAIN_FIT_KERNEL_KERNEL_H
61 #endif // USER_API
Defines class MinimizerResult.
Defines common types for fitting library.
std::function< double(const mumufit::Parameters &)> fcn_scalar_t
Definition: Types.h:39
std::function< std::vector< double >(const mumufit::Parameters &)> fcn_residual_t
Definition: Types.h:40
Defines WallclockTimer class.
Abstract base class for all kind minimizers.
Definition: IMinimizer.h:30
A timer for measuring real (wall-clock) time spent between 'start' and 'stop' commands.
A main class to run fitting.
Definition: Kernel.h:37
Parameters m_parameters
Definition: Kernel.h:53
WallclockTimer m_timer
Definition: Kernel.h:55
void setMinimizer(const std::string &minimizerName, const std::string &algorithmName="", const std::string &options="")
Definition: Kernel.cpp:33
void setParameters(const Parameters &parameters)
Definition: Kernel.cpp:72
MinimizerResult minimize(fcn_scalar_t fcn, const Parameters &parameters)
Definition: Kernel.cpp:44
std::unique_ptr< IMinimizer > m_minimizer
Definition: Kernel.h:54
Result of minimization round.
A collection of fit parameters.
Definition: Parameters.h:26
The multi-library, multi-algorithm fit wrapper library.