SubproblemWorker Class Reference

Class daughter of Worker Class, build and manage a subproblem. More...

#include <SubproblemWorker.h>

Inheritance diagram for SubproblemWorker:

Public Member Functions
	SubproblemWorker (Logger logger)
	SubproblemWorker (VariableMap const &variable_map, const std::filesystem::path &path_to_mps, double const &slave_weight, const std::string &solver_name, const int log_level, SolverLogManager &solver_log_manager, Logger logger)
	Constructor of a Worker Slave.
void	get_solution (PlainData::Variables &vars) const
	Return the solutions values of a problem.
void	fix_to (Point const &x0) const
	Fix a set of variables to constant in a problem.
void	get_subgradient (Point &s) const
	Get LP solution value of a problem.
Public Member Functions inherited from Worker
	Worker (Logger logger)
void	init (VariableMap const &variable_map, const std::filesystem::path &path_to_mps, std::string const &solver_name, int log_level, SolverLogManager &solver_log_manager)
	Initialization of a problem.
void	get_value (double &lb) const
	Return the optimal value of a problem.
void	get_splex_num_of_ite_last (int &result) const
	Get the number of iteration needed to solve a problem.
void	free ()
	Free the problem.
void	write_basis (const std::filesystem::path &filename) const
virtual SolverAbstract::Ptr	solver () const
void	solve (int &lp_status, const std::string &outputroot, const std::string &output_master_mps_file_name, Writer writer) const
	Method to solve a problem.
int	RowIndex (const std::string &row_name) const
void	ChangeRhs (int id_row, double val) const
void	GetRhs (double *val, int id_row) const
void	AddRows (std::vector< char > const &qrtype_p, std::vector< double > const &rhs_p, std::vector< double > const &range_p, std::vector< int > const &mstart_p, std::vector< int > const &mclind_p, std::vector< double > const &dmatval_p, const std::vector< std::string > &row_names) const
int	Getnrows () const
	Returns the number of rows (constraints)
int	Getncols () const

Additional Inherited Members
Public Attributes inherited from Worker
std::filesystem::path	_path_to_mps
VariableMap	_name_to_id
Int2Str	_id_to_name
SolverAbstract::Ptr	_solver
bool	_is_master = false
Logger	logger_

Detailed Description

Class daughter of Worker Class, build and manage a subproblem.

Class daughter of Worker Class, build and manage a master problem.

Constructor & Destructor Documentation

SubproblemWorker()

SubproblemWorker::SubproblemWorker	(	VariableMap const &	variable_map,
		const std::filesystem::path &	path_to_mps,
		double const &	slave_weight,
		const std::string &	solver_name,
		const int	log_level,
		SolverLogManager &	solver_log_manager,
		Logger	logger
	)

Constructor of a Worker Slave.

Parameters

variable_map	: Map of linking each variable of the problem to its id
problem_name	: Name of the problem

Member Function Documentation

fix_to()

void SubproblemWorker::fix_to

(

Point const &

x0

)

const

Fix a set of variables to constant in a problem.

Method to set variables in a problem by fixing their bounds

Parameters

x0	: Set of variables to fix

get_solution()

void SubproblemWorker::get_solution

(

PlainData::Variables &

vars

)

const

Return the solutions values of a problem.

Parameters

lb	: reference to a map

get_subgradient()

void SubproblemWorker::get_subgradient

(

Point &

s

)

const

Get LP solution value of a problem.

Parameters

s	: Empty point which receives the solution

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The documentation for this class was generated from the following files:

• src/cpp/benders/benders_core/include/SubproblemWorker.h
• src/cpp/benders/benders_core/SubproblemWorker.cpp