RelaxationSolver Class Reference

A base class for defining a relaxation-based solver. More...

#include <relaxopt.h>

Inheritance diagram for RelaxationSolver:

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Collaboration diagram for RelaxationSolver:

[legend]

List of all members.

Public Member Functions
	RelaxationSolver (Pointer< MinlpProblem > orig_prob_, bool is_gams_prob=false, double closeval_tol_=0., Pointer< dvector > diam_=NULL, Pointer< Param > param_=NULL, Pointer< ostream > out_solver_p_=out_out_p, Pointer< ostream > out_solver_log_p_=out_log_p)
void	set_split_prob (Pointer< MinlpProblem > split_prob_)
virtual void	set_reform (Pointer< Reformulation > reform_)
void	set_convex_prob (Pointer< MinlpProblem > convex_prob_)
void	set_linear_relax (Pointer< LinearRelax > linear_relax_)
void	set_upper_bound (double upper_bound)
void	set_levelcut_handler (Pointer< LevelCutHandler > levelcuts_)
void	set_MINLPData (Pointer< MINLPData > minlpdata_)
Public Attributes
set< SolCandidate >	sol_cand
double	lower_bound
Protected Member Functions
void	make_sub_prob (Pointer< MinlpProblem > &out, Pointer< MinlpProblem > in, Pointer< MinlpNode > node)
pair< int, bool >	locopt_NLP (dvector &start)
pair< int, bool >	locopt_NLP (dvector &start, dvector &sol_point)
virtual bool	add_sol_candidate (const dvector &x)
void	clean_sub_problems ()
Protected Attributes
Pointer< Param >	param
	Parameters.
Pointer< MinlpProblem >	orig_prob
	The original problem.
Pointer< MinlpProblem >	split_prob
	The block seperable formulation of the original problem.
Pointer< MinlpProblem >	convex_prob
	The convexified (quadratic) decomposed problem.
Pointer< LinearRelax >	linear_relax
	The linear relaxation.
Pointer< Reformulation >	reform
	The reformulated problems.
Pointer< MINLPData >	minlpdata
Pointer< LevelCutHandler >	levelcuts
bool	is_gams_prob
int	last_impr_iter
int	point_conversion_warnings
double	sol_cand_closeval_tol
Pointer< dvector >	sol_cand_diam
Private Attributes
Pointer< LocOpt >	LocOpt_NLP
Friends
class	PartitionHeu
class	MinlpNode

---

Detailed Description

A base class for defining a relaxation-based solver.

Definition at line 24 of file relaxopt.h.

---

Constructor & Destructor Documentation

RelaxationSolver::RelaxationSolver	(	Pointer< MinlpProblem >	orig_prob_,
		bool	is_gams_prob = false,
		double	closeval_tol_ = 0.,
		Pointer< dvector >	diam_ = NULL,
		Pointer< Param >	param_ = NULL,
		Pointer< ostream >	out_solver_p_ = out_out_p,
		Pointer< ostream >	out_solver_log_p_ = out_log_p
	)

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Member Function Documentation

void RelaxationSolver::make_sub_prob	(	Pointer< MinlpProblem > &	out,
		Pointer< MinlpProblem >	in,
		Pointer< MinlpNode >	node
	)			[protected]

pair<int, bool> RelaxationSolver::locopt_NLP

(

dvector &

start

)

[protected]

pair<int, bool> RelaxationSolver::locopt_NLP	(	dvector &	start,
		dvector &	sol_point
	)			[protected]

virtual bool RelaxationSolver::add_sol_candidate

(

const dvector &

x

)

[protected, virtual]

Reimplemented in MinlpBCP.

void RelaxationSolver::clean_sub_problems

(

)

[inline, protected]

Reimplemented in MinlpBCP.

Definition at line 71 of file relaxopt.h.

void RelaxationSolver::set_split_prob

(

Pointer< MinlpProblem >

split_prob_

)

[inline]

Definition at line 85 of file relaxopt.h.

virtual void RelaxationSolver::set_reform

(

Pointer< Reformulation >

reform_

)

[inline, virtual]

Reimplemented in MinlpBCP, LagHeu2, and LagHeu2b.

Definition at line 89 of file relaxopt.h.

void RelaxationSolver::set_convex_prob

(

Pointer< MinlpProblem >

convex_prob_

)

[inline]

Definition at line 93 of file relaxopt.h.

void RelaxationSolver::set_linear_relax

(

Pointer< LinearRelax >

linear_relax_

)

[inline]

Reimplemented in MinlpBCP, and LagHeu.

Definition at line 97 of file relaxopt.h.

void RelaxationSolver::set_upper_bound

(

double

upper_bound

)

[inline]

Definition at line 101 of file relaxopt.h.

void RelaxationSolver::set_levelcut_handler

(

Pointer< LevelCutHandler >

levelcuts_

)

[inline]

Definition at line 105 of file relaxopt.h.

void RelaxationSolver::set_MINLPData

(

Pointer< MINLPData >

minlpdata_

)

[inline]

Reimplemented in MinlpBCP.

Definition at line 109 of file relaxopt.h.

---

Friends And Related Function Documentation

friend class PartitionHeu [friend]

Definition at line 25 of file relaxopt.h.

friend class MinlpNode [friend]

Reimplemented in MinlpBCP.

Definition at line 26 of file relaxopt.h.

---

Member Data Documentation

Pointer<LocOpt> RelaxationSolver::LocOpt_NLP [private]

Definition at line 28 of file relaxopt.h.

Pointer<Param> RelaxationSolver::param [protected]

Parameters.

Definition at line 33 of file relaxopt.h.

Pointer<MinlpProblem> RelaxationSolver::orig_prob [protected]

The original problem.

Definition at line 37 of file relaxopt.h.

Pointer<MinlpProblem> RelaxationSolver::split_prob [protected]

The block seperable formulation of the original problem.

Definition at line 41 of file relaxopt.h.

Pointer<MinlpProblem> RelaxationSolver::convex_prob [protected]

The convexified (quadratic) decomposed problem.

Definition at line 45 of file relaxopt.h.

Pointer<LinearRelax> RelaxationSolver::linear_relax [protected]

The linear relaxation.

Definition at line 49 of file relaxopt.h.

Pointer<Reformulation> RelaxationSolver::reform [protected]

The reformulated problems.

Definition at line 53 of file relaxopt.h.

Pointer<MINLPData> RelaxationSolver::minlpdata [protected]

Definition at line 55 of file relaxopt.h.

Pointer<LevelCutHandler> RelaxationSolver::levelcuts [protected]

Definition at line 57 of file relaxopt.h.

bool RelaxationSolver::is_gams_prob [protected]

Definition at line 59 of file relaxopt.h.

int RelaxationSolver::last_impr_iter [protected]

Definition at line 61 of file relaxopt.h.

int RelaxationSolver::point_conversion_warnings [protected]

Definition at line 62 of file relaxopt.h.

double RelaxationSolver::sol_cand_closeval_tol [protected]

Definition at line 73 of file relaxopt.h.

Pointer<dvector> RelaxationSolver::sol_cand_diam [protected]

Definition at line 74 of file relaxopt.h.

set<SolCandidate> RelaxationSolver::sol_cand

Definition at line 77 of file relaxopt.h.

double RelaxationSolver::lower_bound

Definition at line 79 of file relaxopt.h.

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

• relaxopt.h