OR-Tools  8.2
LocalSearchProfiler

Detailed Description

Definition at line 3619 of file local_search.cc.

Public Member Functions

 LocalSearchProfiler (Solver *solver)
 
std::string DebugString () const override
 
void RestartSearch () override
 Restart the search. More...
 
void ExitSearch () override
 End of the search. More...
 
LocalSearchStatistics ExportToLocalSearchStatistics () const
 
std::string PrintOverview () const
 
void BeginOperatorStart () override
 Local search operator events. More...
 
void EndOperatorStart () override
 
void BeginMakeNextNeighbor (const LocalSearchOperator *op) override
 
void EndMakeNextNeighbor (const LocalSearchOperator *op, bool neighbor_found, const Assignment *delta, const Assignment *deltadelta) override
 
void BeginFilterNeighbor (const LocalSearchOperator *op) override
 
void EndFilterNeighbor (const LocalSearchOperator *op, bool neighbor_found) override
 
void BeginAcceptNeighbor (const LocalSearchOperator *op) override
 
void EndAcceptNeighbor (const LocalSearchOperator *op, bool neighbor_found) override
 
void BeginFiltering (const LocalSearchFilter *filter) override
 
void EndFiltering (const LocalSearchFilter *filter, bool reject) override
 
void Install () override
 Install itself on the solver. More...
 
virtual void EnterSearch ()
 Beginning of the search. More...
 
virtual void BeginNextDecision (DecisionBuilder *const b)
 Before calling DecisionBuilder::Next. More...
 
virtual void EndNextDecision (DecisionBuilder *const b, Decision *const d)
 After calling DecisionBuilder::Next, along with the returned decision. More...
 
virtual void ApplyDecision (Decision *const d)
 Before applying the decision. More...
 
virtual void RefuteDecision (Decision *const d)
 Before refuting the decision. More...
 
virtual void AfterDecision (Decision *const d, bool apply)
 Just after refuting or applying the decision, apply is true after Apply. More...
 
virtual void BeginFail ()
 Just when the failure occurs. More...
 
virtual void EndFail ()
 After completing the backtrack. More...
 
virtual void BeginInitialPropagation ()
 Before the initial propagation. More...
 
virtual void EndInitialPropagation ()
 After the initial propagation. More...
 
virtual bool AcceptSolution ()
 This method is called when a solution is found. More...
 
virtual bool AtSolution ()
 This method is called when a valid solution is found. More...
 
virtual void NoMoreSolutions ()
 When the search tree is finished. More...
 
virtual bool LocalOptimum ()
 When a local optimum is reached. More...
 
virtual bool AcceptDelta (Assignment *delta, Assignment *deltadelta)
 
virtual void AcceptNeighbor ()
 After accepting a neighbor during local search. More...
 
virtual void AcceptUncheckedNeighbor ()
 After accepting an unchecked neighbor during local search. More...
 
virtual bool IsUncheckedSolutionLimitReached ()
 Returns true if the limit of solutions has been reached including unchecked solutions. More...
 
Solversolver () const
 
virtual void PeriodicCheck ()
 Periodic call to check limits in long running methods. More...
 
virtual int ProgressPercent ()
 Returns a percentage representing the propress of the search before reaching limits. More...
 
virtual void Accept (ModelVisitor *const visitor) const
 Accepts the given model visitor. More...
 

Static Public Attributes

static constexpr int kNoProgress = -1
 

Constructor & Destructor Documentation

◆ LocalSearchProfiler()

LocalSearchProfiler ( Solver solver)
inlineexplicit

Definition at line 3621 of file local_search.cc.

Member Function Documentation

◆ Accept()

void Accept ( ModelVisitor *const  visitor) const
virtualinherited

Accepts the given model visitor.

Reimplemented in OptimizeVar, and RegularLimit.

Definition at line 2890 of file constraint_solver.cc.

◆ AcceptDelta()

bool AcceptDelta ( Assignment delta,
Assignment deltadelta 
)
virtualinherited

Reimplemented in OptimizeVar.

Definition at line 2884 of file constraint_solver.cc.

◆ AcceptNeighbor()

void AcceptNeighbor ( )
virtualinherited

After accepting a neighbor during local search.

Definition at line 2887 of file constraint_solver.cc.

◆ AcceptSolution()

bool AcceptSolution ( )
virtualinherited

This method is called when a solution is found.

It asserts whether the solution is valid. A value of false indicates that the solution should be discarded.

Reimplemented in OptimizeVar.

Definition at line 2880 of file constraint_solver.cc.

◆ AcceptUncheckedNeighbor()

void AcceptUncheckedNeighbor ( )
virtualinherited

After accepting an unchecked neighbor during local search.

Reimplemented in SearchLog.

Definition at line 2888 of file constraint_solver.cc.

◆ AfterDecision()

void AfterDecision ( Decision *const  d,
bool  apply 
)
virtualinherited

Just after refuting or applying the decision, apply is true after Apply.

This is called only if the Apply() or Refute() methods have not failed.

Definition at line 2875 of file constraint_solver.cc.

◆ ApplyDecision()

void ApplyDecision ( Decision *const  d)
virtualinherited

Before applying the decision.

Reimplemented in SearchLog.

Definition at line 2873 of file constraint_solver.cc.

◆ AtSolution()

bool AtSolution ( )
virtualinherited

This method is called when a valid solution is found.

If the return value is true, then search will resume after. If the result is false, then search will stop there.

Reimplemented in OptimizeVar, ImprovementSearchLimit, and SearchLog.

Definition at line 2881 of file constraint_solver.cc.

◆ BeginAcceptNeighbor()

void BeginAcceptNeighbor ( const LocalSearchOperator op)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3780 of file local_search.cc.

◆ BeginFail()

void BeginFail ( )
virtualinherited

Just when the failure occurs.

Reimplemented in SearchLog, and DemonProfiler.

Definition at line 2876 of file constraint_solver.cc.

◆ BeginFiltering()

void BeginFiltering ( const LocalSearchFilter filter)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3787 of file local_search.cc.

◆ BeginFilterNeighbor()

void BeginFilterNeighbor ( const LocalSearchOperator op)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3773 of file local_search.cc.

◆ BeginInitialPropagation()

void BeginInitialPropagation ( )
virtualinherited

Before the initial propagation.

Reimplemented in SearchLog.

Definition at line 2878 of file constraint_solver.cc.

◆ BeginMakeNextNeighbor()

void BeginMakeNextNeighbor ( const LocalSearchOperator op)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3760 of file local_search.cc.

◆ BeginNextDecision()

void BeginNextDecision ( DecisionBuilder *const  b)
virtualinherited

Before calling DecisionBuilder::Next.

Reimplemented in SearchLimit, and OptimizeVar.

Definition at line 2870 of file constraint_solver.cc.

◆ BeginOperatorStart()

void BeginOperatorStart ( )
inlineoverridevirtual

Local search operator events.

Implements LocalSearchMonitor.

Definition at line 3758 of file local_search.cc.

◆ DebugString()

std::string DebugString ( ) const
inlineoverridevirtual

Reimplemented from LocalSearchMonitor.

Definition at line 3622 of file local_search.cc.

◆ EndAcceptNeighbor()

void EndAcceptNeighbor ( const LocalSearchOperator op,
bool  neighbor_found 
)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3781 of file local_search.cc.

◆ EndFail()

void EndFail ( )
virtualinherited

After completing the backtrack.

Definition at line 2877 of file constraint_solver.cc.

◆ EndFiltering()

void EndFiltering ( const LocalSearchFilter filter,
bool  reject 
)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3791 of file local_search.cc.

◆ EndFilterNeighbor()

void EndFilterNeighbor ( const LocalSearchOperator op,
bool  neighbor_found 
)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3774 of file local_search.cc.

◆ EndInitialPropagation()

void EndInitialPropagation ( )
virtualinherited

After the initial propagation.

Reimplemented in SearchLog.

Definition at line 2879 of file constraint_solver.cc.

◆ EndMakeNextNeighbor()

void EndMakeNextNeighbor ( const LocalSearchOperator op,
bool  neighbor_found,
const Assignment delta,
const Assignment deltadelta 
)
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3766 of file local_search.cc.

◆ EndNextDecision()

void EndNextDecision ( DecisionBuilder *const  b,
Decision *const  d 
)
virtualinherited

After calling DecisionBuilder::Next, along with the returned decision.

Reimplemented in SymmetryManager.

Definition at line 2871 of file constraint_solver.cc.

◆ EndOperatorStart()

void EndOperatorStart ( )
inlineoverridevirtual

Implements LocalSearchMonitor.

Definition at line 3759 of file local_search.cc.

◆ EnterSearch()

void EnterSearch ( )
virtualinherited

Beginning of the search.

Reimplemented in SolutionCollector, OptimizeVar, SearchLimit, and SearchLog.

Definition at line 2867 of file constraint_solver.cc.

◆ ExitSearch()

void ExitSearch ( )
inlineoverridevirtual

End of the search.

Reimplemented from SearchMonitor.

Definition at line 3627 of file local_search.cc.

◆ ExportToLocalSearchStatistics()

LocalSearchStatistics ExportToLocalSearchStatistics ( ) const
inline

Definition at line 3633 of file local_search.cc.

◆ Install()

void Install ( )
inlineoverridevirtual

Install itself on the solver.

Reimplemented from LocalSearchMonitor.

Definition at line 3799 of file local_search.cc.

◆ IsUncheckedSolutionLimitReached()

virtual bool IsUncheckedSolutionLimitReached ( )
inlinevirtualinherited

Returns true if the limit of solutions has been reached including unchecked solutions.

Reimplemented in RegularLimit.

Definition at line 3706 of file constraint_solver.h.

◆ LocalOptimum()

bool LocalOptimum ( )
virtualinherited

When a local optimum is reached.

If 'true' is returned, the last solution is discarded and the search proceeds with the next one.

Definition at line 2883 of file constraint_solver.cc.

◆ NoMoreSolutions()

void NoMoreSolutions ( )
virtualinherited

When the search tree is finished.

Reimplemented in SearchLog.

Definition at line 2882 of file constraint_solver.cc.

◆ PeriodicCheck()

void PeriodicCheck ( )
virtualinherited

Periodic call to check limits in long running methods.

Reimplemented in SearchLimit.

Definition at line 2889 of file constraint_solver.cc.

◆ PrintOverview()

std::string PrintOverview ( ) const
inline

Definition at line 3687 of file local_search.cc.

◆ ProgressPercent()

virtual int ProgressPercent ( )
inlinevirtualinherited

Returns a percentage representing the propress of the search before reaching limits.

Reimplemented in RegularLimit.

Definition at line 3715 of file constraint_solver.h.

◆ RefuteDecision()

void RefuteDecision ( Decision *const  d)
virtualinherited

Before refuting the decision.

Reimplemented in OptimizeVar, SearchLimit, SearchLog, and SymmetryManager.

Definition at line 2874 of file constraint_solver.cc.

◆ RestartSearch()

void RestartSearch ( )
inlineoverridevirtual

Restart the search.

Reimplemented from SearchMonitor.

Definition at line 3623 of file local_search.cc.

◆ solver()

Solver * solver ( ) const
inlineinherited

Definition at line 3708 of file constraint_solver.h.

Member Data Documentation

◆ kNoProgress

constexpr int kNoProgress = -1
staticconstexprinherited

Definition at line 3637 of file constraint_solver.h.


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