Holds information for recreating a subproblem by incremental change from the parent. More...

#include <CbcPartialNodeInfo.hpp>

Inheritance diagram for CbcPartialNodeInfo:

Collaboration diagram for CbcPartialNodeInfo:

Public Member Functions
virtual void	applyToModel (CbcModel model, CoinWarmStartBasis &basis, CbcCountRowCut **addCuts, int &currentNumberCuts) const
	Modify model according to information at node.
virtual int	applyBounds (int iColumn, double &lower, double &upper, int force)
	Just apply bounds to one variable - force means overwrite by lower,upper (1=>infeasible)
virtual CbcNodeInfo *	buildRowBasis (CoinWarmStartBasis &basis) const
	Builds up row basis backwards (until original model).
	CbcPartialNodeInfo ()
	CbcPartialNodeInfo (CbcNodeInfo parent, CbcNode owner, int numberChangedBounds, const int variables, const double boundChanges, const CoinWarmStartDiff *basisDiff)
	CbcPartialNodeInfo (const CbcPartialNodeInfo &)
	~CbcPartialNodeInfo ()
virtual CbcNodeInfo *	clone () const
	Clone.
const CoinWarmStartDiff *	basisDiff () const
	Basis diff information.
const int *	variables () const
	Which variable (top bit if upper bound changing)
const double *	newBounds () const
int	numberChangedBounds () const
	Number of bound changes.
	CbcNodeInfo ()
	Default Constructor.
	CbcNodeInfo (const CbcNodeInfo &)
	Copy constructor.
	CbcNodeInfo (CbcNodeInfo parent, CbcNode owner)
	Construct with parent and owner.
virtual	~CbcNodeInfo ()
	Destructor.
virtual void	allBranchesGone ()
	Called when number branches left down to zero.
void	increment (int amount=1)
	Increment number of references.
int	decrement (int amount=1)
	Decrement number of references and return number left.
void	initializeInfo (int number)
	Initialize reference counts.
int	numberBranchesLeft () const
	Return number of branches left in object.
void	setNumberBranchesLeft (int value)
	Set number of branches left in object.
int	numberPointingToThis () const
	Return number of objects pointing to this.
void	setNumberPointingToThis (int number)
	Set number of objects pointing to this.
void	incrementNumberPointingToThis ()
	Increment number of objects pointing to this.
int	branchedOn ()
	Say one branch taken.
void	throwAway ()
	Say thrown away.
CbcNodeInfo *	parent () const
	Parent of this.
void	nullParent ()
	Set parent null.
void	addCuts (OsiCuts &cuts, int numberToBranch, int numberPointingToThis)
void	addCuts (int numberCuts, CbcCountRowCut **cuts, int numberToBranch)
void	deleteCuts (int numberToDelete, CbcCountRowCut **cuts)
	Delete cuts (decrements counts) Slow unless cuts in same order as saved.
void	deleteCuts (int numberToDelete, int *which)
void	deleteCut (int whichOne)
	Really delete a cut.
void	decrementCuts (int change=1)
	Decrement active cut counts.
void	incrementCuts (int change=1)
	Increment active cut counts.
void	decrementParentCuts (CbcModel *model, int change=1)
	Decrement all active cut counts in chain starting at parent.
void	incrementParentCuts (CbcModel *model, int change=1)
	Increment all active cut counts in parent chain.
CbcCountRowCut **	cuts () const
	Array of pointers to cuts.
int	numberCuts () const
	Number of row cuts (this node)
void	setNumberCuts (int value)
void	nullOwner ()
	Set owner null.
const CbcNode *	owner () const
CbcNode *	mutableOwner () const
int	nodeNumber () const
	The node number.
void	setNodeNumber (int node)
void	deactivate (int mode=3)
	Deactivate node information.
bool	allActivated () const
	Say if normal.
bool	marked () const
	Say if marked.
void	mark ()
	Mark.
void	unmark ()
	Unmark.
bool	symmetryWorked () const
	Get symmetry value (true worked at this node)
void	setSymmetryWorked ()
	Say symmetry worked at this node)
const OsiBranchingObject *	parentBranch () const
	Branching object for the parent.
void	unsetParentBasedData ()
	If we need to take off parent based data.

Protected Attributes
CoinWarmStartDiff *	basisDiff_
	Basis diff information.
int *	variables_
	Which variable (top bit if upper bound changing)
double *	newBounds_
int	numberChangedBounds_
	Number of bound changes.
int	numberPointingToThis_
	Number of other nodes pointing to this node.
CbcNodeInfo *	parent_
	parent
OsiBranchingObject *	parentBranch_
	Copy of the branching object of the parent when the node is created.
CbcNode *	owner_
	Owner.
int	numberCuts_
	Number of row cuts (this node)
int	nodeNumber_
	The node number.
CbcCountRowCut **	cuts_
	Array of pointers to cuts.
int	numberRows_
	Number of rows in problem (before these cuts).
int	numberBranchesLeft_
	Number of branch arms left to explore at this node.
int	active_
	Active node information.

Private Member Functions
CbcPartialNodeInfo &	operator= (const CbcPartialNodeInfo &rhs)
	Illegal Assignment operator.

Detailed Description

Holds information for recreating a subproblem by incremental change from the parent.

A CbcPartialNodeInfo object contains changes to the bounds and basis, and additional cuts, required to recreate a subproblem by modifying and augmenting the parent subproblem.

Definition at line 39 of file CbcPartialNodeInfo.hpp.

Constructor & Destructor Documentation

◆ CbcPartialNodeInfo() [1/3]

CbcPartialNodeInfo::CbcPartialNodeInfo ( )

◆ CbcPartialNodeInfo() [2/3]

CbcPartialNodeInfo::CbcPartialNodeInfo	(	CbcNodeInfo *	parent,
		CbcNode *	owner,
		int	numberChangedBounds,
		const int *	variables,
		const double *	boundChanges,
		const CoinWarmStartDiff *	basisDiff )

◆ CbcPartialNodeInfo() [3/3]

CbcPartialNodeInfo::CbcPartialNodeInfo ( const CbcPartialNodeInfo & )

◆ ~CbcPartialNodeInfo()

CbcPartialNodeInfo::~CbcPartialNodeInfo ( )

Member Function Documentation

◆ applyToModel()

virtual void CbcPartialNodeInfo::applyToModel	(	CbcModel *	model,
		CoinWarmStartBasis *&	basis,
		CbcCountRowCut **	addCuts,
		int &	currentNumberCuts ) const

virtual

Modify model according to information at node.

The routine modifies the model according to bound and basis change information at node and adds any cuts to the addCuts array.

Implements CbcNodeInfo.

◆ applyBounds()

virtual int CbcPartialNodeInfo::applyBounds	(	int	iColumn,
		double &	lower,
		double &	upper,
		int	force )

virtual

Just apply bounds to one variable - force means overwrite by lower,upper (1=>infeasible)

Implements CbcNodeInfo.

◆ buildRowBasis()

virtual CbcNodeInfo * CbcPartialNodeInfo::buildRowBasis ( CoinWarmStartBasis & basis ) const

virtual

Builds up row basis backwards (until original model).

Returns NULL or previous one to apply . Depends on Free being 0 and impossible for cuts

Implements CbcNodeInfo.

◆ clone()

virtual CbcNodeInfo * CbcPartialNodeInfo::clone ( ) const

virtual

Clone.

Implements CbcNodeInfo.

◆ basisDiff()

const CoinWarmStartDiff * CbcPartialNodeInfo::basisDiff ( ) const

inline

Basis diff information.

Definition at line 76 of file CbcPartialNodeInfo.hpp.

◆ variables()

const int * CbcPartialNodeInfo::variables ( ) const

inline

Which variable (top bit if upper bound changing)

Definition at line 81 of file CbcPartialNodeInfo.hpp.

◆ newBounds()

const double * CbcPartialNodeInfo::newBounds ( ) const

inline

Definition at line 86 of file CbcPartialNodeInfo.hpp.

◆ numberChangedBounds()

int CbcPartialNodeInfo::numberChangedBounds ( ) const

inline

Number of bound changes.

Definition at line 91 of file CbcPartialNodeInfo.hpp.

◆ operator=()

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

private

Illegal Assignment operator.

Member Data Documentation

◆ basisDiff_

CoinWarmStartDiff* CbcPartialNodeInfo::basisDiff_

protected

Basis diff information.

Definition at line 100 of file CbcPartialNodeInfo.hpp.

◆ variables_

int* CbcPartialNodeInfo::variables_

protected

Which variable (top bit if upper bound changing)

Definition at line 102 of file CbcPartialNodeInfo.hpp.

◆ newBounds_

double* CbcPartialNodeInfo::newBounds_

protected

Definition at line 104 of file CbcPartialNodeInfo.hpp.

◆ numberChangedBounds_

int CbcPartialNodeInfo::numberChangedBounds_

protected

Number of bound changes.

Definition at line 106 of file CbcPartialNodeInfo.hpp.

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

/builddir/build/BUILD/coin-or-Cbc-2.10.12-build/Cbc-releases-2.10.12/Cbc/src/CbcPartialNodeInfo.hpp

Public Member Functions

Protected Attributes

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ CbcPartialNodeInfo() [1/3]

◆ CbcPartialNodeInfo() [2/3]

◆ CbcPartialNodeInfo() [3/3]

◆ ~CbcPartialNodeInfo()

Member Function Documentation

◆ applyToModel()

◆ applyBounds()

◆ buildRowBasis()

◆ clone()

◆ basisDiff()

◆ variables()

◆ newBounds()

◆ numberChangedBounds()

◆ operator=()

Member Data Documentation

◆ basisDiff_

◆ variables_

◆ newBounds_

◆ numberChangedBounds_