#include <BonHeuristicDive.hpp>
Inheritance diagram for Bonmin::HeuristicDive:


Public Member Functions | |
| HeuristicDive () | |
| Default constructor. | |
| HeuristicDive (BonminSetup *setup) | |
| Constructor with setup. | |
| HeuristicDive (const HeuristicDive ©) | |
| Copy constructor. | |
| ~HeuristicDive () | |
| Destructor. | |
| HeuristicDive & | operator= (const HeuristicDive &rhs) |
| Assignment operator. | |
| virtual CbcHeuristic * | clone () const =0 |
| Clone. | |
| virtual void | resetModel (CbcModel *model) |
| Resets stuff if model changes. | |
| virtual void | setSetup (BonminSetup *setup) |
| Change setup used for heuristic. | |
| void | setPercentageToFix (double value) |
| Set percentage of integer variables to fix at bounds. | |
| virtual int | solution (double &solutionValue, double *betterSolution) |
| Performs heuristic. | |
| virtual void | setInternalVariables (TMINLP2TNLP *minlp)=0 |
| sets internal variables | |
| virtual void | selectVariableToBranch (TMINLP2TNLP *minlp, const vector< int > &integerColumns, const double *newSolution, int &bestColumn, int &bestRound)=0 |
| If bestColumn = -1, it means that no variable was found. | |
Protected Attributes | |
| BonminSetup * | setup_ |
| Setup to use for local searches (will make copies). | |
| double | percentageToFix_ |
| Percentage of integer variables to fix at bounds. | |
Private Attributes | |
| int | howOften_ |
| How often to do (code can change). | |
Definition at line 18 of file BonHeuristicDive.hpp.
| Bonmin::HeuristicDive::HeuristicDive | ( | ) |
| Bonmin::HeuristicDive::HeuristicDive | ( | BonminSetup * | setup | ) |
| Bonmin::HeuristicDive::HeuristicDive | ( | const HeuristicDive & | copy | ) |
| Bonmin::HeuristicDive::~HeuristicDive | ( | ) | [inline] |
| HeuristicDive & Bonmin::HeuristicDive::operator= | ( | const HeuristicDive & | rhs | ) |
Assignment operator.
Definition at line 55 of file BonHeuristicDive.cpp.
References howOften_, percentageToFix_, and setup_.
Referenced by Bonmin::HeuristicDiveVectorLength::operator=(), and Bonmin::HeuristicDiveFractional::operator=().
| virtual CbcHeuristic* Bonmin::HeuristicDive::clone | ( | ) | const [pure virtual] |
| virtual void Bonmin::HeuristicDive::resetModel | ( | CbcModel * | model | ) | [inline, virtual] |
| virtual void Bonmin::HeuristicDive::setSetup | ( | BonminSetup * | setup | ) | [inline, virtual] |
Change setup used for heuristic.
Reimplemented in Bonmin::HeuristicDiveFractional, and Bonmin::HeuristicDiveVectorLength.
Definition at line 45 of file BonHeuristicDive.hpp.
References setup_.
Referenced by Bonmin::HeuristicDiveVectorLength::setSetup(), and Bonmin::HeuristicDiveFractional::setSetup().
| void Bonmin::HeuristicDive::setPercentageToFix | ( | double | value | ) | [inline] |
Set percentage of integer variables to fix at bounds.
Definition at line 51 of file BonHeuristicDive.hpp.
References percentageToFix_.
| int Bonmin::HeuristicDive::solution | ( | double & | solutionValue, | |
| double * | betterSolution | |||
| ) | [virtual] |
Performs heuristic.
Definition at line 67 of file BonHeuristicDive.cpp.
References Bonmin::adjustPrimalTolerance(), Bonmin::B_BB, Bonmin::OsiTMINLPInterface::clone(), Bonmin::TMINLP::CONTINUOUS, Bonmin::TMINLP2TNLP::get_nlp_info(), Bonmin::BonminSetup::getAlgorithm(), howOften_, Bonmin::OsiTMINLPInterface::initialSolve(), Bonmin::isNlpFeasible(), Bonmin::BabSetupBase::nonlinearSolver(), percentageToFix_, Bonmin::OsiTMINLPInterface::problem(), selectVariableToBranch(), setInternalVariables(), and setup_.
| virtual void Bonmin::HeuristicDive::setInternalVariables | ( | TMINLP2TNLP * | minlp | ) | [pure virtual] |
sets internal variables
Implemented in Bonmin::HeuristicDiveFractional, and Bonmin::HeuristicDiveVectorLength.
Referenced by solution().
| virtual void Bonmin::HeuristicDive::selectVariableToBranch | ( | TMINLP2TNLP * | minlp, | |
| const vector< int > & | integerColumns, | |||
| const double * | newSolution, | |||
| int & | bestColumn, | |||
| int & | bestRound | |||
| ) | [pure virtual] |
If bestColumn = -1, it means that no variable was found.
Implemented in Bonmin::HeuristicDiveFractional, and Bonmin::HeuristicDiveVectorLength.
Referenced by solution().
BonminSetup* Bonmin::HeuristicDive::setup_ [protected] |
Setup to use for local searches (will make copies).
Definition at line 71 of file BonHeuristicDive.hpp.
Referenced by operator=(), setSetup(), and solution().
double Bonmin::HeuristicDive::percentageToFix_ [protected] |
Percentage of integer variables to fix at bounds.
Definition at line 74 of file BonHeuristicDive.hpp.
Referenced by operator=(), setPercentageToFix(), and solution().
int Bonmin::HeuristicDive::howOften_ [private] |
How often to do (code can change).
Definition at line 78 of file BonHeuristicDive.hpp.
Referenced by operator=(), and solution().
1.4.7