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CglAllDifferent Class Reference

AllDifferent Cut Generator Class This has a number of sets. More...

#include <CglAllDifferent.hpp>

+ Inheritance diagram for CglAllDifferent:
+ Collaboration diagram for CglAllDifferent:

Public Member Functions

Generate Cuts
virtual void generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo())
 This fixes (or reduces bounds) on sets of all different variables. More...
 
Constructors and destructors
 CglAllDifferent ()
 Default constructor. More...
 
 CglAllDifferent (int numberSets, const int *starts, const int *which)
 Useful constructot. More...
 
 CglAllDifferent (const CglAllDifferent &)
 Copy constructor. More...
 
virtual CglCutGeneratorclone () const
 Clone. More...
 
CglAllDifferentoperator= (const CglAllDifferent &rhs)
 Assignment operator. More...
 
virtual ~CglAllDifferent ()
 Destructor. More...
 
virtual std::string generateCpp (FILE *fp)
 Create C++ lines to get to current state. More...
 
virtual void refreshSolver (OsiSolverInterface *solver)
 This can be used to refresh any inforamtion. More...
 
virtual bool mayGenerateRowCutsInTree () const
 Returns true if may generate Row cuts in tree (rather than root node). More...
 
Sets and Gets
void setLogLevel (int value)
 Set log level. More...
 
int getLogLevel () const
 Get log level. More...
 
void setMaxLook (int value)
 Set Maximum number of sets to look at at once. More...
 
int getMaxLook () const
 Get Maximum number of sets to look at at once. More...
 
- Public Member Functions inherited from CglCutGenerator
 CglCutGenerator ()
 Default constructor. More...
 
 CglCutGenerator (const CglCutGenerator &)
 Copy constructor. More...
 
CglCutGeneratoroperator= (const CglCutGenerator &rhs)
 Assignment operator. More...
 
virtual ~CglCutGenerator ()
 Destructor. More...
 
int getAggressiveness () const
 Get Aggressiveness - 0 = neutral, 100 is normal root node. More...
 
void setAggressiveness (int value)
 Set Aggressiveness - 0 = neutral, 100 is normal root node. More...
 
void setGlobalCuts (bool trueOrFalse)
 Set whether can do global cuts. More...
 
bool canDoGlobalCuts () const
 Say whether can do global cuts. More...
 
virtual bool needsOptimalBasis () const
 Return true if needs optimal basis to do cuts. More...
 
virtual int maximumLengthOfCutInTree () const
 Return maximum length of cut in tree. More...
 

Private Attributes

Private member data
int numberSets_
 Number of sets. More...
 
int numberDifferent_
 Total number of variables in all different sets. More...
 
int maxLook_
 Maximum number of sets to look at at once. More...
 
int logLevel_
 Log level - 0 none, 1 - a bit, 2 - more details. More...
 
int * start_
 Start of each set. More...
 
int * which_
 Members (0,1,....) not as in original model. More...
 
int * originalWhich_
 Original members. More...
 

Additional Inherited Members

- Public Attributes inherited from CglCutGenerator
int aggressive_
 Aggressiveness - 0 = neutral, 100 is normal root node. More...
 
bool canDoGlobalCuts_
 True if can do global cuts i.e. no general integers. More...
 

Detailed Description

AllDifferent Cut Generator Class This has a number of sets.

All the members in each set are general integer variables which have to be different from all others in the set.

At present this only generates column cuts

At present it is very primitive compared to proper CSP implementations

Definition at line 20 of file CglAllDifferent.hpp.

Constructor & Destructor Documentation

CglAllDifferent::CglAllDifferent ( )

Default constructor.

CglAllDifferent::CglAllDifferent ( int  numberSets,
const int *  starts,
const int *  which 
)

Useful constructot.

CglAllDifferent::CglAllDifferent ( const CglAllDifferent )

Copy constructor.

virtual CglAllDifferent::~CglAllDifferent ( )
virtual

Destructor.

Member Function Documentation

virtual void CglAllDifferent::generateCuts ( const OsiSolverInterface si,
OsiCuts cs,
const CglTreeInfo  info = CglTreeInfo() 
)
virtual

This fixes (or reduces bounds) on sets of all different variables.

Implements CglCutGenerator.

virtual CglCutGenerator* CglAllDifferent::clone ( ) const
virtual

Clone.

Implements CglCutGenerator.

CglAllDifferent& CglAllDifferent::operator= ( const CglAllDifferent rhs)

Assignment operator.

virtual std::string CglAllDifferent::generateCpp ( FILE *  fp)
virtual

Create C++ lines to get to current state.

Reimplemented from CglCutGenerator.

virtual void CglAllDifferent::refreshSolver ( OsiSolverInterface solver)
virtual

This can be used to refresh any inforamtion.

Reimplemented from CglCutGenerator.

virtual bool CglAllDifferent::mayGenerateRowCutsInTree ( ) const
inlinevirtual

Returns true if may generate Row cuts in tree (rather than root node).

Used so know if matrix will change in tree. Really meant so column cut generators can still be active without worrying code. Default is true

Reimplemented from CglCutGenerator.

Definition at line 69 of file CglAllDifferent.hpp.

void CglAllDifferent::setLogLevel ( int  value)
inline

Set log level.

Definition at line 75 of file CglAllDifferent.hpp.

int CglAllDifferent::getLogLevel ( ) const
inline

Get log level.

Definition at line 78 of file CglAllDifferent.hpp.

void CglAllDifferent::setMaxLook ( int  value)
inline

Set Maximum number of sets to look at at once.

Definition at line 81 of file CglAllDifferent.hpp.

int CglAllDifferent::getMaxLook ( ) const
inline

Get Maximum number of sets to look at at once.

Definition at line 84 of file CglAllDifferent.hpp.

Member Data Documentation

int CglAllDifferent::numberSets_
private

Number of sets.

Definition at line 100 of file CglAllDifferent.hpp.

int CglAllDifferent::numberDifferent_
private

Total number of variables in all different sets.

Definition at line 102 of file CglAllDifferent.hpp.

int CglAllDifferent::maxLook_
private

Maximum number of sets to look at at once.

Definition at line 104 of file CglAllDifferent.hpp.

int CglAllDifferent::logLevel_
private

Log level - 0 none, 1 - a bit, 2 - more details.

Definition at line 106 of file CglAllDifferent.hpp.

int* CglAllDifferent::start_
private

Start of each set.

Definition at line 108 of file CglAllDifferent.hpp.

int* CglAllDifferent::which_
private

Members (0,1,....) not as in original model.

Definition at line 110 of file CglAllDifferent.hpp.

int* CglAllDifferent::originalWhich_
private

Original members.

Definition at line 112 of file CglAllDifferent.hpp.


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