BlisHeuristic Class Reference

Heuristic base class. More...

#include <BlisHeuristic.h>

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List of all members.

Public Member Functions

 BlisHeuristic ()
 Default Constructor.
 BlisHeuristic (BlisModel *model, const char *name, int strategy)
 Useful constructor.
virtual ~BlisHeuristic ()
 Distructor.
 BlisHeuristic (const BlisHeuristic &rhs)
 Copy constructor.
virtual void setModel (BlisModel *model)
 update model (This is needed if cliques update matrix etc).



virtual void setStrategy (int strategy)
 Get/set strategy.
virtual int strategy ()
 Get/set strategy.
virtual BlisHeuristicclone () const =0
 Clone a heuristic.
virtual bool searchSolution (double &objectiveValue, double *newSolution)=0
 returns 0 if no solution, 1 if valid solution with better objective value than one passed in Sets solution values if good, sets objective value This is called after cuts have been added - so can not add cuts
virtual int searchSolution (double &objectiveValue, double *newSolution, OsiCuts &cs)
 returns 0 if no solution, 1 if valid solution, -1 if just returning an estimate of best possible solution with better objective value than one passed in Sets solution values if good, sets objective value (only if nonzero code) This is called at same time as cut generators - so can add cuts Default is do nothing
int numSolutions ()
 Number of solutions found.
double time ()
 Cpu time used.
int calls ()
 Cpu time used.

Protected Attributes

BlisModelmodel_
 Pointer to the model.
char * name_
 Heuristics name.
int strategy_
 When to call findSolution() routine.
int numSolutions_
 Number of solutions found.
double time_
 Used CPU/User time.
int calls_
 The times of calling this heuristic.

Private Member Functions

BlisHeuristicoperator= (const BlisHeuristic &rhs)
 Illegal Assignment operator.

Detailed Description

Heuristic base class.

Definition at line 46 of file BlisHeuristic.h.


Constructor & Destructor Documentation

BlisHeuristic::BlisHeuristic (  )  [inline]

Default Constructor.

Definition at line 81 of file BlisHeuristic.h.

BlisHeuristic::BlisHeuristic ( BlisModel model,
const char *  name,
int  strategy 
) [inline]

Useful constructor.

Definition at line 91 of file BlisHeuristic.h.

virtual BlisHeuristic::~BlisHeuristic (  )  [inline, virtual]

Distructor.

Definition at line 106 of file BlisHeuristic.h.

BlisHeuristic::BlisHeuristic ( const BlisHeuristic rhs  )  [inline]

Copy constructor.

Definition at line 109 of file BlisHeuristic.h.


Member Function Documentation

BlisHeuristic& BlisHeuristic::operator= ( const BlisHeuristic rhs  )  [private]

Illegal Assignment operator.

Reimplemented in BlisHeurRound.

virtual void BlisHeuristic::setModel ( BlisModel model  )  [inline, virtual]

update model (This is needed if cliques update matrix etc).

Reimplemented in BlisHeurRound.

Definition at line 119 of file BlisHeuristic.h.

virtual void BlisHeuristic::setStrategy ( int  strategy  )  [inline, virtual]

Get/set strategy.

Definition at line 123 of file BlisHeuristic.h.

virtual int BlisHeuristic::strategy (  )  [inline, virtual]

Get/set strategy.

Definition at line 124 of file BlisHeuristic.h.

virtual BlisHeuristic* BlisHeuristic::clone (  )  const [pure virtual]

Clone a heuristic.

Implemented in BlisHeurRound.

virtual bool BlisHeuristic::searchSolution ( double &  objectiveValue,
double *  newSolution 
) [pure virtual]

returns 0 if no solution, 1 if valid solution with better objective value than one passed in Sets solution values if good, sets objective value This is called after cuts have been added - so can not add cuts

Implemented in BlisHeurRound.

virtual int BlisHeuristic::searchSolution ( double &  objectiveValue,
double *  newSolution,
OsiCuts cs 
) [inline, virtual]

returns 0 if no solution, 1 if valid solution, -1 if just returning an estimate of best possible solution with better objective value than one passed in Sets solution values if good, sets objective value (only if nonzero code) This is called at same time as cut generators - so can add cuts Default is do nothing

Definition at line 146 of file BlisHeuristic.h.

int BlisHeuristic::numSolutions (  )  [inline]

Number of solutions found.

Definition at line 151 of file BlisHeuristic.h.

double BlisHeuristic::time (  )  [inline]

Cpu time used.

Definition at line 154 of file BlisHeuristic.h.

int BlisHeuristic::calls (  )  [inline]

Cpu time used.

Definition at line 157 of file BlisHeuristic.h.


Member Data Documentation

Pointer to the model.

Definition at line 56 of file BlisHeuristic.h.

char* BlisHeuristic::name_ [protected]

Heuristics name.

Definition at line 59 of file BlisHeuristic.h.

int BlisHeuristic::strategy_ [protected]

When to call findSolution() routine.

-2: disable -1: just root 0: automatically decided by BLIS any positive integer: the node interval between the call

Definition at line 67 of file BlisHeuristic.h.

Number of solutions found.

Definition at line 70 of file BlisHeuristic.h.

double BlisHeuristic::time_ [protected]

Used CPU/User time.

Definition at line 73 of file BlisHeuristic.h.

int BlisHeuristic::calls_ [protected]

The times of calling this heuristic.

Definition at line 76 of file BlisHeuristic.h.


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

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