Scippy

SCIP

Solving Constraint Integer Programs

Detailed Description

methods to query search tree related information

See also
Public methods for nodes

Modules

 Nodes
 methods for nodes of the search tree of SCIP
 

Functions

SCIP_EXPORT SCIP_NODESCIPgetFocusNode (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetCurrentNode (SCIP *scip)
 
SCIP_EXPORT int SCIPgetDepth (SCIP *scip)
 
SCIP_EXPORT int SCIPgetFocusDepth (SCIP *scip)
 
SCIP_EXPORT int SCIPgetPlungeDepth (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetRootNode (SCIP *scip)
 
SCIP_EXPORT int SCIPgetEffectiveRootDepth (SCIP *scip)
 
SCIP_EXPORT SCIP_Bool SCIPinRepropagation (SCIP *scip)
 
SCIP_EXPORT SCIP_RETCODE SCIPgetChildren (SCIP *scip, SCIP_NODE ***children, int *nchildren)
 
SCIP_EXPORT int SCIPgetNChildren (SCIP *scip)
 
SCIP_EXPORT SCIP_RETCODE SCIPgetSiblings (SCIP *scip, SCIP_NODE ***siblings, int *nsiblings)
 
SCIP_EXPORT int SCIPgetNSiblings (SCIP *scip)
 
SCIP_EXPORT SCIP_RETCODE SCIPgetLeaves (SCIP *scip, SCIP_NODE ***leaves, int *nleaves)
 
SCIP_EXPORT int SCIPgetNLeaves (SCIP *scip)
 
SCIP_EXPORT int SCIPgetNNodesLeft (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetPrioChild (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetPrioSibling (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetBestChild (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetBestSibling (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetBestLeaf (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetBestNode (SCIP *scip)
 
SCIP_EXPORT SCIP_NODESCIPgetBestboundNode (SCIP *scip)
 
SCIP_EXPORT SCIP_RETCODE SCIPgetOpenNodesData (SCIP *scip, SCIP_NODE ***leaves, SCIP_NODE ***children, SCIP_NODE ***siblings, int *nleaves, int *nchildren, int *nsiblings)
 
SCIP_EXPORT SCIP_RETCODE SCIPcutoffNode (SCIP *scip, SCIP_NODE *node)
 
SCIP_EXPORT SCIP_RETCODE SCIPrepropagateNode (SCIP *scip, SCIP_NODE *node)
 
SCIP_EXPORT int SCIPgetCutoffdepth (SCIP *scip)
 
SCIP_EXPORT int SCIPgetRepropdepth (SCIP *scip)
 
SCIP_EXPORT SCIP_RETCODE SCIPprintNodeRootPath (SCIP *scip, SCIP_NODE *node, FILE *file)
 
SCIP_EXPORT void SCIPsetFocusnodeLP (SCIP *scip, SCIP_Bool solvelp)
 
SCIP_EXPORT SCIP_Bool SCIPwasNodeLastBranchParent (SCIP *scip, SCIP_NODE *node)
 

Function Documentation

◆ SCIPgetFocusNode()

SCIP_EXPORT SCIP_NODE* SCIPgetFocusNode ( SCIP scip)

gets focus node in the tree

if we are in probing/diving mode this method returns the node in the tree where the probing/diving mode was started.

Returns
the current node of the search tree
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 62 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetFocusNode(), Scip::tree, and TRUE.

Referenced by applyCliqueFixings(), SCIPvarUpdatePseudocost(), subtreeSumGapInsertChildren(), subtreeSumGapSplit(), and subtreeSumGapUpdate().

◆ SCIPgetCurrentNode()

SCIP_EXPORT SCIP_NODE* SCIPgetCurrentNode ( SCIP scip)

gets current node in the tree

Returns
the current node of the search tree
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 81 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetCurrentNode(), Scip::tree, and TRUE.

Referenced by applyDomainChanges(), applyProbing(), applyVbounds(), branchCons(), checkDivingCandidates(), computeBranchingVariables(), computeDynamicRowOrder(), constructCompression(), createAndSplitProblem(), enforceCardinality(), enforceConstraint(), Exec(), execGenVBounds(), execRelpscost(), executeStrongBranching(), findComponents(), generateCut(), generateSecantCut(), generateSecantCutNoCheck(), getBranchingDecisionStrongbranchSOS1(), initProblem(), performInteriorSolCutStrengthening(), redbasedVarfixing(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIP_DECL_BRANCHEXITSOL(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERFARKAS(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_PROPEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPanalyzeDeductionsProbing(), SCIPendStrongbranch(), SCIPstartDive(), SCIPStpBranchruleApplyVertexChgs(), SCIPtreemodelSelectCandidate(), selectBranchingVertexByLp2Flow(), selectBranchingVertexBySol(), selectVarMultAggrBranching(), separateOddCycles(), setupAndSolveSubscipRapidlearning(), subscipdataCopySubscip(), tightenBounds(), and updateDataStructures().

◆ SCIPgetDepth()

SCIP_EXPORT int SCIPgetDepth ( SCIP scip)

gets depth of current node, or -1 if no current node exists; in probing, the current node is the last probing node, such that the depth includes the probing path

Returns
the depth of current node, or -1 if no current node exists; in probing, the current node is the last probing node, such that the depth includes the probing path
Precondition
This method can be called if SCIP is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 638 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetCurrentDepth(), Scip::tree, and TRUE.

Referenced by applyCliqueFixings(), applyGenVBounds(), applyNlobbt(), applyOptcumulative(), applyVboundsFixings(), computeCut(), createAndSplitProblem(), createRow(), createSubscip(), disableCons(), doSeparation(), dualcostVarfixing(), enforceCardinality(), enforceConflictgraph(), enforceConstraint(), execGenVBounds(), execRelpscost(), filterExistingLP(), findComponents(), generateClusterCuts(), generateCutFactorable(), generateCutNonConvex(), generateDisjCutSOS1(), initImplGraphSOS1(), initProblem(), performFixing(), performImplicationGraphAnalysis(), performRandRounding(), processRealBoundChg(), processWatchedVars(), propagateCons(), propagateCutoffboundBinvar(), propagateCutoffboundGlobally(), propagateRootRedcostBinvar(), propIndicator(), redbasedVarfixing(), removeFixedBinvars(), runVanillaStrongBranching(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NODESELSELECT(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_PROPEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddRow(), SCIPapplyLockFixings(), SCIPapplyUndercover(), SCIPapplyZeroobj(), SCIPbendersExec(), SCIPbendersSetupSubproblem(), SCIPgetRowprepRowCons(), SCIPgetRowprepRowConshdlr(), SCIPgetRowprepRowSepa(), SCIPisConflictAnalysisApplicable(), SCIPperformGenericDivingAlgorithm(), SCIPpropagateProbing(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPsnprintfProbingStats(), SCIPupdateDivesetStats(), SCIPvarUpdatePseudocost(), selectVarMultAggrBranching(), sep_2cut(), sepaImplBoundCutsSOS1(), separateCuts(), separateIndicators(), separateOddCycles(), separateSOS1(), setupAndSolveSubscipRapidlearning(), setupProbingSCIP(), solveNlp(), storeAllBilinearTerms(), tryOneOpt(), and trySolCandidate().

◆ SCIPgetFocusDepth()

SCIP_EXPORT int SCIPgetFocusDepth ( SCIP scip)

gets depth of the focus node, or -1 if no focus node exists; the focus node is the currently processed node in the branching tree, excluding the nodes of the probing path

Returns
the depth of the focus node, or -1 if no focus node exists; the focus node is the currently processed node in the branching tree, excluding the nodes of the probing path
Precondition
This method can be called if SCIP is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 664 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetFocusDepth(), Scip::tree, and TRUE.

◆ SCIPgetPlungeDepth()

SCIP_EXPORT int SCIPgetPlungeDepth ( SCIP scip)

gets current plunging depth (successive times, a child was selected as next node)

Returns
the current plunging depth (successive times, a child was selected as next node)
Precondition
This method can be called if SCIP is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 681 of file scip_tree.c.

References FALSE, SCIP_Stat::plungedepth, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::stat, and TRUE.

Referenced by SCIP_DECL_DISPOUTPUT(), and SCIP_DECL_NODESELSELECT().

◆ SCIPgetRootNode()

SCIP_EXPORT SCIP_NODE* SCIPgetRootNode ( SCIP scip)

gets the root node of the tree

Returns
the root node of the search tree
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 100 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetRootNode(), Scip::tree, and TRUE.

Referenced by Exec(), propagateCons(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_PRICERFARKAS(), SCIPcopyConcurrentSolvingStats(), SCIPreoptimizeNode(), SCIPshrinkDisjunctiveVarSet(), tightenVarLb(), and tightenVarUb().

◆ SCIPgetEffectiveRootDepth()

SCIP_EXPORT int SCIPgetEffectiveRootDepth ( SCIP scip)

gets the effective root depth, i.e., the depth of the deepest node which is part of all paths from the root node to the unprocessed nodes.

Returns
effective root depth
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 117 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetEffectiveRootDepth(), Scip::tree, and TRUE.

Referenced by SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), and setupAndSolveSubscipRapidlearning().

◆ SCIPinRepropagation()

SCIP_EXPORT SCIP_Bool SCIPinRepropagation ( SCIP scip)

returns whether the current node is already solved and only propagated again

Returns
TRUE is returned if SCIP performance repropagation, otherwise FALSE.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 136 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeInRepropagation(), Scip::tree, and TRUE.

Referenced by applyProbingVar(), computeEffectiveHorizonCumulativeCondition(), fixIntegerVariable(), fixIntegerVariableLb(), fixIntegerVariableUb(), propagateAllConss(), propagateCons(), propagateVbounds(), propIndicator(), removeFixedBinvars(), SCIP_DECL_CONSPROP(), SCIP_DECL_PROPEXEC(), solveIndependentCons(), and updateSubproblemLowerbound().

◆ SCIPgetChildren()

SCIP_EXPORT SCIP_RETCODE SCIPgetChildren ( SCIP scip,
SCIP_NODE ***  children,
int *  nchildren 
)

gets children of focus node along with the number of children

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:

gets children of focus node along with the number of children

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
childrenpointer to store children array, or NULL if not needed
nchildrenpointer to store number of children, or NULL if not needed

Definition at line 154 of file scip_tree.c.

References SCIP_Tree::children, FALSE, SCIP_Tree::nchildren, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), Scip::tree, and TRUE.

Referenced by checkLeavesBelowIncumbent(), SCIPsolve(), subtreeSumGapInsertChildren(), updateDataStructures(), and writeBounds().

◆ SCIPgetNChildren()

SCIP_EXPORT int SCIPgetNChildren ( SCIP scip)

gets number of children of focus node

Returns
number of children of the focus node
Precondition
This method can be called if scip is in one of the following stages:

gets number of children of focus node

Returns
number of children of the focus node
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 178 of file scip_tree.c.

References FALSE, SCIP_Tree::nchildren, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.

Referenced by SCIP_DECL_CONSDEACTIVE(), subtreeSumGapUpdate(), and updateDataStructures().

◆ SCIPgetSiblings()

SCIP_EXPORT SCIP_RETCODE SCIPgetSiblings ( SCIP scip,
SCIP_NODE ***  siblings,
int *  nsiblings 
)

gets siblings of focus node along with the number of siblings

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:

gets siblings of focus node along with the number of siblings

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
siblingspointer to store siblings array, or NULL if not needed
nsiblingspointer to store number of siblings, or NULL if not needed

Definition at line 196 of file scip_tree.c.

References FALSE, SCIP_Tree::nsiblings, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIP_Tree::siblings, Scip::tree, and TRUE.

Referenced by checkLeavesBelowIncumbent(), SCIPsolve(), and writeBounds().

◆ SCIPgetNSiblings()

SCIP_EXPORT int SCIPgetNSiblings ( SCIP scip)

gets number of siblings of focus node

Returns
the number of siblings of focus node
Precondition
This method can be called if scip is in one of the following stages:

gets number of siblings of focus node

Returns
the number of siblings of focus node
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 220 of file scip_tree.c.

References FALSE, SCIP_Tree::nsiblings, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.

Referenced by subtreeSumGapUpdate().

◆ SCIPgetLeaves()

SCIP_EXPORT SCIP_RETCODE SCIPgetLeaves ( SCIP scip,
SCIP_NODE ***  leaves,
int *  nleaves 
)

gets leaves of the tree along with the number of leaves

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:

gets leaves of the tree along with the number of leaves

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
leavespointer to store leaves array, or NULL if not needed
nleavespointer to store number of leaves, or NULL if not needed

Definition at line 238 of file scip_tree.c.

References FALSE, SCIP_Tree::leaves, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPnodepqLen(), SCIPnodepqNodes(), Scip::tree, and TRUE.

Referenced by checkLeavesBelowIncumbent(), SCIPsolve(), and writeBounds().

◆ SCIPgetNLeaves()

SCIP_EXPORT int SCIPgetNLeaves ( SCIP scip)

gets number of leaves in the tree

Returns
the number of leaves in the tree
Precondition
This method can be called if scip is in one of the following stages:

gets number of leaves in the tree

Returns
the number of leaves in the tree
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 262 of file scip_tree.c.

References FALSE, SCIP_Tree::leaves, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPnodepqLen(), Scip::tree, and TRUE.

Referenced by subtreeSumGapUpdate().

◆ SCIPgetNNodesLeft()

SCIP_EXPORT int SCIPgetNNodesLeft ( SCIP scip)

gets number of nodes left in the tree (children + siblings + leaves)

Returns
the number of nodes left in the tree (children + siblings + leaves)
Precondition
This method can be called if SCIP is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 612 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetNNodes(), Scip::tree, and TRUE.

Referenced by applyDomainChanges(), checkLeavesBelowIncumbent(), releaseNodeInformation(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_NODESELSELECT(), SCIPsolve(), updateDataStructures(), and writeBounds().

◆ SCIPgetPrioChild()

SCIP_EXPORT SCIP_NODE* SCIPgetPrioChild ( SCIP scip)

gets the best child of the focus node w.r.t. the node selection priority assigned by the branching rule

Returns
the best child of the focus node w.r.t. the node selection priority assigned by the branching rule
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 278 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetPrioChild(), Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetPrioSibling()

SCIP_EXPORT SCIP_NODE* SCIPgetPrioSibling ( SCIP scip)

gets the best sibling of the focus node w.r.t. the node selection priority assigned by the branching rule

Returns
the best sibling of the focus node w.r.t. the node selection priority assigned by the branching rule
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 294 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetPrioSibling(), Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetBestChild()

SCIP_EXPORT SCIP_NODE* SCIPgetBestChild ( SCIP scip)

gets the best child of the focus node w.r.t. the node selection strategy

Returns
the best child of the focus node w.r.t. the node selection strategy
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 310 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestChild(), Scip::set, Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetBestSibling()

SCIP_EXPORT SCIP_NODE* SCIPgetBestSibling ( SCIP scip)

gets the best sibling of the focus node w.r.t. the node selection strategy

Returns
the best sibling of the focus node w.r.t. the node selection strategy
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 326 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestSibling(), Scip::set, Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetBestLeaf()

SCIP_EXPORT SCIP_NODE* SCIPgetBestLeaf ( SCIP scip)

gets the best leaf from the node queue w.r.t. the node selection strategy

Returns
the best leaf from the node queue w.r.t. the node selection strategy
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 342 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestLeaf(), Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetBestNode()

SCIP_EXPORT SCIP_NODE* SCIPgetBestNode ( SCIP scip)

gets the best node from the tree (child, sibling, or leaf) w.r.t. the node selection strategy

Returns
the best node from the tree (child, sibling, or leaf) w.r.t. the node selection strategy
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 358 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestNode(), Scip::set, Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetBestboundNode()

SCIP_EXPORT SCIP_NODE* SCIPgetBestboundNode ( SCIP scip)

gets the node with smallest lower bound from the tree (child, sibling, or leaf)

Returns
the node with smallest lower bound from the tree (child, sibling, or leaf)
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 374 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetLowerboundNode(), Scip::set, Scip::tree, and TRUE.

Referenced by SCIP_DECL_NODESELSELECT().

◆ SCIPgetOpenNodesData()

SCIP_EXPORT SCIP_RETCODE SCIPgetOpenNodesData ( SCIP scip,
SCIP_NODE ***  leaves,
SCIP_NODE ***  children,
SCIP_NODE ***  siblings,
int *  nleaves,
int *  nchildren,
int *  nsiblings 
)

access to all data of open nodes (leaves, children, and siblings)

Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
leavespointer to store the leaves, or NULL if not needed
childrenpointer to store the children, or NULL if not needed
siblingspointer to store the siblings, or NULL if not needed
nleavespointer to store the number of leaves, or NULL
nchildrenpointer to store the number of children, or NULL
nsiblingspointer to store the number of siblings, or NULL

Definition at line 388 of file scip_tree.c.

References SCIP_Tree::children, FALSE, SCIP_Tree::leaves, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPnodepqLen(), SCIPnodepqNodes(), SCIPtreeGetNChildren(), SCIPtreeGetNSiblings(), SCIP_Tree::siblings, Scip::tree, and TRUE.

Referenced by recomputeNodeInformation(), SCIP_DECL_NODESELSELECT(), subtreeSumGapInsertChildren(), and subtreeSumGapSplit().

◆ SCIPcutoffNode()

SCIP_EXPORT SCIP_RETCODE SCIPcutoffNode ( SCIP scip,
SCIP_NODE node 
)

cuts off node and whole sub tree from branch and bound tree

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
nodenode that should be cut off

Definition at line 424 of file scip_tree.c.

References FALSE, Scip::lp, Scip::mem, Scip::origprob, SCIP_Mem::probmem, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPnodeCutoff(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.

Referenced by applyVbounds(), propagateCons(), SCIP_DECL_HEUREXEC(), SCIPshrinkDisjunctiveVarSet(), tightenVarLb(), and tightenVarUb().

◆ SCIPrepropagateNode()

SCIP_EXPORT SCIP_RETCODE SCIPrepropagateNode ( SCIP scip,
SCIP_NODE node 
)

marks the given node to be propagated again the next time a node of its subtree is processed

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
nodenode that should be propagated again

Definition at line 445 of file scip_tree.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPnodePropagateAgain(), Scip::set, Scip::stat, Scip::tree, and TRUE.

Referenced by SCIP_DECL_CONSACTIVE().

◆ SCIPgetCutoffdepth()

SCIP_EXPORT int SCIPgetCutoffdepth ( SCIP scip)

returns depth of first node in active path that is marked being cutoff

Returns
depth of first node in active path that is marked being cutoff
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 464 of file scip_tree.c.

References SCIP_Tree::cutoffdepth, FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.

◆ SCIPgetRepropdepth()

SCIP_EXPORT int SCIPgetRepropdepth ( SCIP scip)

returns depth of first node in active path that has to be propagated again

Returns
depth of first node in active path that has to be propagated again
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure

Definition at line 480 of file scip_tree.c.

References FALSE, SCIP_Tree::repropdepth, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.

◆ SCIPprintNodeRootPath()

SCIP_EXPORT SCIP_RETCODE SCIPprintNodeRootPath ( SCIP scip,
SCIP_NODE node,
FILE *  file 
)

prints all branching decisions on variables from the root to the given node

Returns
SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
nodenode data
fileoutput file (or NULL for standard output)

Definition at line 497 of file scip_tree.c.

References Scip::messagehdlr, nnodes, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPfreeBufferArray, SCIPmessageFPrintInfo(), SCIPnodeGetAncestorBranchingPath(), SCIPnodeGetDepth(), SCIPreallocBufferArray, and SCIPvarGetName().

Referenced by computeBranchingVariables().

◆ SCIPsetFocusnodeLP()

SCIP_EXPORT void SCIPsetFocusnodeLP ( SCIP scip,
SCIP_Bool  solvelp 
)

sets whether the LP should be solved at the focus node

Note
In order to have an effect, this method needs to be called after a node is focused but before the LP is solved.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
solvelpshould the LP be solved?

Definition at line 593 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeSetFocusNodeLP(), Scip::tree, and TRUE.

◆ SCIPwasNodeLastBranchParent()

SCIP_EXPORT SCIP_Bool SCIPwasNodeLastBranchParent ( SCIP scip,
SCIP_NODE node 
)

query if node was the last parent of a branching of the tree

Returns
TRUE if node was the last parent of a branching of the tree
Precondition
This method can be called if SCIP is in one of the following stages:
Parameters
scipSCIP data structure
nodetree node, or NULL to check focus node

Definition at line 699 of file scip_tree.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeWasNodeLastBranchParent(), Scip::tree, and TRUE.

Referenced by subtreeSumGapUpdate().