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CglTreeProbingInfo Class Reference

#include <CglTreeInfo.hpp>

+ Inheritance diagram for CglTreeProbingInfo:
+ Collaboration diagram for CglTreeProbingInfo:

Public Member Functions

 CglTreeProbingInfo ()
 Default constructor. More...
 
 CglTreeProbingInfo (const OsiSolverInterface *model)
 Constructor from model. More...
 
 CglTreeProbingInfo (const CglTreeProbingInfo &)
 Copy constructor. More...
 
virtual CglTreeInfoclone () const
 Clone. More...
 
CglTreeProbingInfooperator= (const CglTreeProbingInfo &rhs)
 Assignment operator. More...
 
virtual ~CglTreeProbingInfo ()
 Destructor. More...
 
OsiSolverInterfaceanalyze (const OsiSolverInterface &si, int createSolver=0, int numberExtraCliques=0, const int *starts=NULL, const CliqueEntry *entries=NULL, const char *type=NULL)
 
virtual bool fixes (int variable, int toValue, int fixedVariable, bool fixedToLower)
 Take action if cut generator can fix a variable (toValue -1 for down, +1 for up) Returns true if still room, false if not. More...
 
virtual int initializeFixing (const OsiSolverInterface *model)
 Initalizes fixing arrays etc - returns >0 if we want to save info 0 if we don't and -1 if is to be used. More...
 
int fixColumns (OsiSolverInterface &si) const
 Fix entries in a solver using implications. More...
 
int fixColumns (int iColumn, int value, OsiSolverInterface &si) const
 Fix entries in a solver using implications for one variable. More...
 
int packDown ()
 Packs down entries. More...
 
void generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info) const
 Generate cuts from implications. More...
 
CliqueEntryfixEntries ()
 Entries for fixing variables. More...
 
int * toZero ()
 Starts of integer variable going to zero. More...
 
int * toOne ()
 Starts of integer variable going to one. More...
 
int * integerVariable () const
 List of 0-1 integer variables. More...
 
int * backward () const
 Backward look up. More...
 
int numberVariables () const
 Number of variables. More...
 
int numberIntegers () const
 Number of 0-1 variables. More...
 
- Public Member Functions inherited from CglTreeInfo
 CglTreeInfo ()
 Default constructor. More...
 
 CglTreeInfo (const CglTreeInfo &)
 Copy constructor. More...
 
CglTreeInfooperator= (const CglTreeInfo &rhs)
 Assignment operator. More...
 
virtual ~CglTreeInfo ()
 Destructor. More...
 

Protected Attributes

CliqueEntryfixEntry_
 Entries for fixing variables. More...
 
int * toZero_
 Starts of integer variable going to zero. More...
 
int * toOne_
 Starts of integer variable going to one. More...
 
int * integerVariable_
 List of 0-1 integer variables. More...
 
int * backward_
 Backward look up. More...
 
int * fixingEntry_
 Entries for fixing variable when collecting. More...
 
int numberVariables_
 Number of variables. More...
 
int numberIntegers_
 Number of 0-1 variables. More...
 
int maximumEntries_
 Maximum number in fixEntry_. More...
 
int numberEntries_
 Number entries in fixingEntry_ (and fixEntry_) or -2 if correct style. More...
 

Private Member Functions

void convert ()
 Converts to ordered. More...
 

Additional Inherited Members

- Public Attributes inherited from CglTreeInfo
int level
 The level of the search tree node. More...
 
int pass
 How many times the cut generator was already invoked in this search tree node. More...
 
int formulation_rows
 The number of rows in the original formulation. More...
 
int options
 Options 1 - treat costed integers as important 2 - switch off some stuff as variables semi-integer 4 - set global cut flag if at root node 8 - set global cut flag if at root node and first pass 16 - set global cut flag and make cuts globally valid 32 - last round of cuts did nothing - maybe be more aggressive 64 - in preprocessing stage 128 - looks like solution 256 - want alternate cuts 512 - in sub tree (i.e. More...
 
bool inTree
 Set true if in tree (to avoid ambiguity at first branch) More...
 
OsiRowCut ** strengthenRow
 Replacement array. More...
 
CoinThreadRandomrandomNumberGenerator
 Optional pointer to thread specific random number generator. More...
 

Detailed Description

Definition at line 85 of file CglTreeInfo.hpp.

Constructor & Destructor Documentation

CglTreeProbingInfo::CglTreeProbingInfo ( )

Default constructor.

CglTreeProbingInfo::CglTreeProbingInfo ( const OsiSolverInterface model)

Constructor from model.

CglTreeProbingInfo::CglTreeProbingInfo ( const CglTreeProbingInfo )

Copy constructor.

virtual CglTreeProbingInfo::~CglTreeProbingInfo ( )
virtual

Destructor.

Member Function Documentation

virtual CglTreeInfo* CglTreeProbingInfo::clone ( ) const
virtual

Clone.

Reimplemented from CglTreeInfo.

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

Assignment operator.

OsiSolverInterface* CglTreeProbingInfo::analyze ( const OsiSolverInterface si,
int  createSolver = 0,
int  numberExtraCliques = 0,
const int *  starts = NULL,
const CliqueEntry entries = NULL,
const char *  type = NULL 
)
virtual bool CglTreeProbingInfo::fixes ( int  variable,
int  toValue,
int  fixedVariable,
bool  fixedToLower 
)
virtual

Take action if cut generator can fix a variable (toValue -1 for down, +1 for up) Returns true if still room, false if not.

Reimplemented from CglTreeInfo.

virtual int CglTreeProbingInfo::initializeFixing ( const OsiSolverInterface model)
virtual

Initalizes fixing arrays etc - returns >0 if we want to save info 0 if we don't and -1 if is to be used.

Reimplemented from CglTreeInfo.

int CglTreeProbingInfo::fixColumns ( OsiSolverInterface si) const

Fix entries in a solver using implications.

int CglTreeProbingInfo::fixColumns ( int  iColumn,
int  value,
OsiSolverInterface si 
) const

Fix entries in a solver using implications for one variable.

int CglTreeProbingInfo::packDown ( )

Packs down entries.

void CglTreeProbingInfo::generateCuts ( const OsiSolverInterface si,
OsiCuts cs,
const CglTreeInfo  info 
) const

Generate cuts from implications.

CliqueEntry* CglTreeProbingInfo::fixEntries ( )
inline

Entries for fixing variables.

Definition at line 126 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::toZero ( )
inline

Starts of integer variable going to zero.

Definition at line 129 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::toOne ( )
inline

Starts of integer variable going to one.

Definition at line 132 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::integerVariable ( ) const
inline

List of 0-1 integer variables.

Definition at line 135 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::backward ( ) const
inline

Backward look up.

Definition at line 138 of file CglTreeInfo.hpp.

int CglTreeProbingInfo::numberVariables ( ) const
inline

Number of variables.

Definition at line 141 of file CglTreeInfo.hpp.

int CglTreeProbingInfo::numberIntegers ( ) const
inline

Number of 0-1 variables.

Definition at line 144 of file CglTreeInfo.hpp.

void CglTreeProbingInfo::convert ( )
private

Converts to ordered.

Member Data Documentation

CliqueEntry* CglTreeProbingInfo::fixEntry_
protected

Entries for fixing variables.

Definition at line 151 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::toZero_
protected

Starts of integer variable going to zero.

Definition at line 153 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::toOne_
protected

Starts of integer variable going to one.

Definition at line 155 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::integerVariable_
protected

List of 0-1 integer variables.

Definition at line 157 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::backward_
protected

Backward look up.

Definition at line 159 of file CglTreeInfo.hpp.

int* CglTreeProbingInfo::fixingEntry_
protected

Entries for fixing variable when collecting.

Definition at line 161 of file CglTreeInfo.hpp.

int CglTreeProbingInfo::numberVariables_
protected

Number of variables.

Definition at line 163 of file CglTreeInfo.hpp.

int CglTreeProbingInfo::numberIntegers_
protected

Number of 0-1 variables.

Definition at line 165 of file CglTreeInfo.hpp.

int CglTreeProbingInfo::maximumEntries_
protected

Maximum number in fixEntry_.

Definition at line 167 of file CglTreeInfo.hpp.

int CglTreeProbingInfo::numberEntries_
protected

Number entries in fixingEntry_ (and fixEntry_) or -2 if correct style.

Definition at line 169 of file CglTreeInfo.hpp.


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