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

#include <SubproblemWorker.h>

Inheritance diagram for SubproblemWorker:

Public Member Functions
	SubproblemWorker (const VariableMap &variable_map, double slave_weight, const std::string &solver_name, int log_level, const SolverLogManager &solver_log_manager, Logger logger, ProblemsFormat format, IBendersProblemProvider *benders_problem_provider, double cut_coefficient_tolerance)
	Constructor of a Worker Slave.

std::vector< double >	get_solution () const
	Return the solutions values of a problem.

void	fix_to (const Point &x0) const
	Fix a set of variables to constant in a problem.

void	get_subgradient (Point &subgradient) const
	Get LP solution value of a problem.

	Worker (VariableMap variable_map, Logger logger, double cut_coefficient_tolerance)

Public Member Functions inherited from Worker
	Worker (VariableMap variable_map, Logger logger, double cut_coefficient_tolerance)

void	init (const std::string &solver_name, int log_level, const SolverLogManager &solver_log_manager, ProblemsFormat format, IBendersProblemProvider *benders_problem_provider)
	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 std::shared_ptr< SolverAbstract >	solver () const

void	solve (int &lp_status, const std::string &outputroot, const std::string &output_master_mps_file_name, std::shared_ptr< Output::OutputWriter > 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 (const std::vector< char > &qrtype_p, const std::vector< double > &rhs_p, const std::vector< double > &range_p, const std::vector< int > &mstart_p, const std::vector< int > &mclind_p, const std::vector< double > &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	_base_filename

VariableMap	_name_to_id

Int2Str	_id_to_name

std::shared_ptr< SolverAbstract >	_solver = nullptr

bool	_is_master = false

Logger	logger_

Protected Member Functions inherited from Worker
void	roundIfWithinTolerance (std::vector< double > &values, int first, int last) const

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	(	const VariableMap &	variable_map,
		double	slave_weight,
		const std::string &	solver_name,
		int	log_level,
		const SolverLogManager &	solver_log_manager,
		Logger	logger,
		ProblemsFormat	format,
		IBendersProblemProvider *	benders_problem_provider,
		double	cut_coefficient_tolerance )

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 ( const Point & 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()

std::vector< double > SubproblemWorker::get_solution ( ) const

Return the solutions values of a problem.

Parameters

lb	: reference to a map

◆ get_subgradient()

void SubproblemWorker::get_subgradient ( Point & subgradient ) const

Get LP solution value of a problem.

Parameters

s	: Empty point which receives the solution

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

src/cpp/benders/benders_core/include/antares-xpansion/benders/benders_core/SubproblemWorker.h
src/cpp/benders/benders_core/SubproblemWorker.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SubproblemWorker()

Member Function Documentation

◆ fix_to()

◆ get_solution()

◆ get_subgradient()