BRANCHINGDECISION Struct Reference

Detailed Description

Holds the information needed for branching on a variable.

Definition at line 427 of file branch_lookahead.c.

Data Fields
SCIP_VAR *	branchvar
SCIP_Real	branchval
SCIP_Real *	downlowerbounds
SCIP_Real *	downupperbounds
SCIP_Real *	uplowerbounds
SCIP_Real *	upupperbounds
SCIP_Real	downdb
SCIP_Real	updb
SCIP_Real	proveddb
SCIP_Real	score
SCIP_Bool	downdbvalid
SCIP_Bool	updbvalid
SCIP_Bool	boundsvalid
int	boundssize

Field Documentation

branchvar

SCIP_VAR* BRANCHINGDECISION::branchvar

the variable to branch on, may be NULL

Definition at line 429 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchingDecisionIsValid(), branchOnVar(), SCIP_DECL_BRANCHEXECLP(), selectVarRecursive(), and selectVarStart().

branchval

SCIP_Real BRANCHINGDECISION::branchval

the fractional value to branch on

Definition at line 430 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), SCIP_DECL_BRANCHEXECLP(), selectVarRecursive(), and selectVarStart().

downlowerbounds

SCIP_Real* BRANCHINGDECISION::downlowerbounds

variable lower bounds for down child

Definition at line 431 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionEnsureBoundArraysSize(), branchingDecisionInit(), branchOnVar(), and selectVarRecursive().

downupperbounds

SCIP_Real* BRANCHINGDECISION::downupperbounds

variable upper bounds for down child

Definition at line 432 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionEnsureBoundArraysSize(), branchingDecisionInit(), branchOnVar(), and selectVarRecursive().

uplowerbounds

SCIP_Real* BRANCHINGDECISION::uplowerbounds

variable lower bounds for up child

Definition at line 433 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionEnsureBoundArraysSize(), branchingDecisionInit(), branchOnVar(), and selectVarRecursive().

upupperbounds

SCIP_Real* BRANCHINGDECISION::upupperbounds

variable upper bounds for up child

Definition at line 434 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionEnsureBoundArraysSize(), branchingDecisionInit(), branchOnVar(), and selectVarRecursive().

downdb

SCIP_Real BRANCHINGDECISION::downdb

dual bound for down branch

Definition at line 435 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), SCIP_DECL_BRANCHEXECLP(), selectVarRecursive(), and selectVarStart().

updb

SCIP_Real BRANCHINGDECISION::updb

dual bound for the up branch

Definition at line 436 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), SCIP_DECL_BRANCHEXECLP(), selectVarRecursive(), and selectVarStart().

proveddb

SCIP_Real BRANCHINGDECISION::proveddb

proven dual bound for the current node

Definition at line 437 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), executeBranchingRecursive(), selectVarRecursive(), and selectVarStart().

score

SCIP_Real BRANCHINGDECISION::score

score of the branching decision

Definition at line 438 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), executeBranchingRecursive(), and selectVarRecursive().

downdbvalid

SCIP_Bool BRANCHINGDECISION::downdbvalid

Indicator for the validity of the downdb value. Is FALSE, if no actual branching occurred or the value was determined by an LP not solved to optimality.

Definition at line 439 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), selectVarRecursive(), and selectVarStart().

updbvalid

SCIP_Bool BRANCHINGDECISION::updbvalid

Indicator for the validity of the updb value. Is FALSE, if no actual branching occurred or the value was determined by an LP not solved to optimality.

Definition at line 442 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), selectVarRecursive(), and selectVarStart().

boundsvalid

SCIP_Bool BRANCHINGDECISION::boundsvalid

are variable bounds for down and up child valid?

Definition at line 445 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionInit(), branchOnVar(), and selectVarRecursive().

boundssize

int BRANCHINGDECISION::boundssize

size of bounds arrays

Definition at line 446 of file branch_lookahead.c.

Referenced by branchingDecisionCopy(), branchingDecisionEnsureBoundArraysSize(), branchingDecisionInit(), and branchOnVar().