idol::ReducedCostFixing< NodeInfoT >::Strategy Class Reference

Inheritance diagram for idol::ReducedCostFixing< NodeInfoT >::Strategy:

Collaboration diagram for idol::ReducedCostFixing< NodeInfoT >::Strategy:

Protected Member Functions
void	operator() (CallbackEvent t_event) override
virtual void	initialize ()
virtual void	log_after_termination ()
void	add_user_cut (const TempCtr &t_cut)
void	add_lazy_cut (const TempCtr &t_cut)
void	add_local_variable_branching (const Var &t_var, CtrType t_type, double t_rhs)
const Node< NodeInfoT > &	node () const
const Model &	relaxation () const
const Model &	original_model () const
void	submit_heuristic_solution (NodeInfoT *t_info)
void	submit_bound (double t_bound)
const SideEffectRegistry &	side_effect_registry () const
const Timer &	time () const
double	best_bound () const
double	best_obj () const
void	terminate ()

Detailed Description

template<class NodeInfoT = idol::DefaultNodeInfo>
class idol::ReducedCostFixing< NodeInfoT >::Strategy

Definition at line 17 of file ReducedCostFixing.h.

Member Function Documentation

add_lazy_cut()

template<class NodeInfoT >

void idol::BranchAndBoundCallback< NodeInfoT >::add_lazy_cut ( const TempCtr &  t_cut )

protectedinherited

Adds a lazy cut to the relaxation

Parameters

t_cut

the cut to be added

Definition at line 286 of file BranchAndBoundCallback.h.

add_local_variable_branching()

template<class NodeInfoT >

void idol::BranchAndBoundCallback< NodeInfoT >::add_local_variable_branching ( const Var &  t_var, CtrType  t_type, double  t_rhs  )

protectedinherited

Definition at line 220 of file BranchAndBoundCallback.h.

add_user_cut()

template<class NodeInfoT >

void idol::BranchAndBoundCallback< NodeInfoT >::add_user_cut ( const TempCtr &  t_cut )

protectedinherited

Adds a user cut to the relaxation

Parameters

t_cut

the cut to be added

Definition at line 292 of file BranchAndBoundCallback.h.

best_bound()

template<class NodeInfoT >

double idol::BranchAndBoundCallback< NodeInfoT >::best_bound ( ) const

protectedinherited

Definition at line 232 of file BranchAndBoundCallback.h.

best_obj()

template<class NodeInfoT >

double idol::BranchAndBoundCallback< NodeInfoT >::best_obj ( ) const

protectedinherited

Definition at line 226 of file BranchAndBoundCallback.h.

initialize()

template<class NodeInfoT >

virtual void idol::BranchAndBoundCallback< NodeInfoT >::initialize ( )

inlineprotectedvirtualinherited

This method is called at the very beginning of the Branch-and-Bound algorithm

Reimplemented in idol::Cuts::KnapsackCover< NodeInfoT >::Strategy.

Definition at line 139 of file BranchAndBoundCallback.h.

log_after_termination()

template<class NodeInfoT >

virtual void idol::BranchAndBoundCallback< NodeInfoT >::log_after_termination ( )

inlineprotectedvirtualinherited

Definition at line 147 of file BranchAndBoundCallback.h.

node()

template<class NodeInfoT >

const idol::Node< NodeInfoT > & idol::BranchAndBoundCallback< NodeInfoT >::node ( ) const

protectedinherited

Returns the node which is currently explored

Returns

the node which is currently explored

Definition at line 280 of file BranchAndBoundCallback.h.

operator()()

template<class NodeInfoT = idol::DefaultNodeInfo>

void idol::ReducedCostFixing< NodeInfoT >::Strategy::operator() ( CallbackEvent  t_event )

inlineoverrideprotectedvirtual

This method is left for the user to write and consists in the main execution block of the callback.

Parameters

t_event

The event triggering the callback

Implements idol::BranchAndBoundCallback< NodeInfoT >.

Definition at line 20 of file ReducedCostFixing.h.

original_model()

template<class NodeInfoT >

const idol::Model & idol::BranchAndBoundCallback< NodeInfoT >::original_model ( ) const

protectedinherited

Returns the original model from which the branch-and-bound algorithm started (i.e., the original non-relaxed model)

Returns

the original model

Definition at line 268 of file BranchAndBoundCallback.h.

relaxation()

template<class NodeInfoT >

const idol::Model & idol::BranchAndBoundCallback< NodeInfoT >::relaxation ( ) const

protectedinherited

Returns the current node's model being solved

Returns

the current node's model being solved

Definition at line 274 of file BranchAndBoundCallback.h.

side_effect_registry()

template<class NodeInfoT >

const idol::SideEffectRegistry & idol::BranchAndBoundCallback< NodeInfoT >::side_effect_registry ( ) const

protectedinherited

Returns the side effect registry

Returns

the side effect registry

Definition at line 244 of file BranchAndBoundCallback.h.

submit_bound()

template<class NodeInfoT >

void idol::BranchAndBoundCallback< NodeInfoT >::submit_bound ( double  t_bound )

protectedinherited

Submits a new proven bound.

The given bound is set as best bound if and only if it improves the current best bound.

Parameters

t_bound

a proven bound

Definition at line 256 of file BranchAndBoundCallback.h.

submit_heuristic_solution()

template<class NodeInfoT >

void idol::BranchAndBoundCallback< NodeInfoT >::submit_heuristic_solution ( NodeInfoT *  t_info )

protectedinherited

Submits a new solution to the branch-and-bound tree algorithm.

The solution is checked for validity according to the branch-and-bound tree branching rule and is set as incumbent if and only if it is valid and improves the current best objective.

Parameters

t_info

a node information storing the solution

Definition at line 262 of file BranchAndBoundCallback.h.

terminate()

template<class NodeInfoT >

void idol::BranchAndBoundCallback< NodeInfoT >::terminate ( )

protectedinherited

Definition at line 238 of file BranchAndBoundCallback.h.

time()

template<class NodeInfoT >

const idol::Timer & idol::BranchAndBoundCallback< NodeInfoT >::time ( ) const

protectedinherited

Definition at line 250 of file BranchAndBoundCallback.h.