CouenneBranchingObject Class Reference

"Spatial" branching object. More...

#include <CouenneBranchingObject.hpp>

Inheritance diagram for CouenneBranchingObject:

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Collaboration diagram for CouenneBranchingObject:

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List of all members.

Public Member Functions

 CouenneBranchingObject (OsiSolverInterface *solver, const OsiObject *originalObject, JnlstPtr jnlst, expression *var, int way, CouNumber brpoint, bool doFBBT, bool doConvCuts)
 Constructor.
 CouenneBranchingObject (const CouenneBranchingObject &src)
 Copy constructor.
virtual OsiBranchingObject * clone () const
 cloning method
virtual double branch (OsiSolverInterface *solver=NULL)
 Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state.
virtual bool boundBranch () const
 does this branching object only change variable bounds?
void setSimulate (bool s)
 set simulate_ field below
expressionvariable ()
 return branching variable

Protected Attributes

expressionvariable_
 The index of the variable this branching object refers to.
JnlstPtr jnlst_
 SmartPointer to the Journalist.
bool doFBBT_
 shall we do Feasibility based Bound Tightening (FBBT) at branching?
bool doConvCuts_
 shall we add convexification cuts at branching?
double downEstimate_
 down branch estimate (done at selectBranch with reduced costs)
double upEstimate_
 up branch estimate
bool simulate_
 are we currently in strong branching?

Detailed Description

"Spatial" branching object.

Branching can also be performed on continuous variables.

Definition at line 32 of file CouenneBranchingObject.hpp.


Constructor & Destructor Documentation

CouenneBranchingObject::CouenneBranchingObject ( OsiSolverInterface *  solver,
const OsiObject *  originalObject,
JnlstPtr  jnlst,
expression var,
int  way,
CouNumber  brpoint,
bool  doFBBT,
bool  doConvCuts 
)

Constructor.

Referenced by clone().

CouenneBranchingObject::CouenneBranchingObject ( const CouenneBranchingObject src  )  [inline]

Copy constructor.

Definition at line 47 of file CouenneBranchingObject.hpp.


Member Function Documentation

virtual OsiBranchingObject* CouenneBranchingObject::clone (  )  const [inline, virtual]

cloning method

Reimplemented in CouenneComplBranchingObject.

Definition at line 59 of file CouenneBranchingObject.hpp.

References CouenneBranchingObject().

virtual double CouenneBranchingObject::branch ( OsiSolverInterface *  solver = NULL  )  [virtual]

Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state.

Returns change in guessed objective on next branch

Reimplemented in CouenneComplBranchingObject.

virtual bool CouenneBranchingObject::boundBranch (  )  const [inline, virtual]

does this branching object only change variable bounds?

Definition at line 70 of file CouenneBranchingObject.hpp.

References doConvCuts_.

void CouenneBranchingObject::setSimulate ( bool  s  )  [inline]

set simulate_ field below

Definition at line 74 of file CouenneBranchingObject.hpp.

References simulate_.

expression* CouenneBranchingObject::variable (  )  [inline]

return branching variable

Definition at line 78 of file CouenneBranchingObject.hpp.

References variable_.


Member Data Documentation

expression* CouenneBranchingObject::variable_ [protected]

The index of the variable this branching object refers to.

If the corresponding CouenneObject was created on w=f(x,y), it is either x or y, chosen previously with a call to getFixVar() expression *reference_;

Definition at line 87 of file CouenneBranchingObject.hpp.

Referenced by variable().

JnlstPtr CouenneBranchingObject::jnlst_ [protected]

SmartPointer to the Journalist.

Definition at line 90 of file CouenneBranchingObject.hpp.

bool CouenneBranchingObject::doFBBT_ [protected]

shall we do Feasibility based Bound Tightening (FBBT) at branching?

Definition at line 93 of file CouenneBranchingObject.hpp.

bool CouenneBranchingObject::doConvCuts_ [protected]

shall we add convexification cuts at branching?

Definition at line 96 of file CouenneBranchingObject.hpp.

Referenced by boundBranch().

double CouenneBranchingObject::downEstimate_ [protected]

down branch estimate (done at selectBranch with reduced costs)

Definition at line 99 of file CouenneBranchingObject.hpp.

double CouenneBranchingObject::upEstimate_ [protected]

up branch estimate

Definition at line 102 of file CouenneBranchingObject.hpp.

bool CouenneBranchingObject::simulate_ [protected]

are we currently in strong branching?

Definition at line 105 of file CouenneBranchingObject.hpp.

Referenced by setSimulate().


The documentation for this class was generated from the following file:
Generated on Wed May 19 03:08:41 2010 for Couenne by  doxygen 1.4.7