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 | |
Function Documentation
◆ SCIPgetFocusNode()
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
-
scip SCIP data structure
Definition at line 72 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()
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
-
scip SCIP data structure
Definition at line 91 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(), consEnfo(), consSepa(), constructCompression(), createAndSplitProblem(), enforceCardinality(), Exec(), execGenVBounds(), execRelpscost(), executeStrongBranching(), findComponents(), getBranchingDecisionStrongbranchSOS1(), initProblem(), performInteriorSolCutStrengthening(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIP_DECL_BRANCHEXITSOL(), SCIP_DECL_CONSPROP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_PRICERFARKAS(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_PROPEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPanalyzeDeductionsProbing(), SCIPendStrongbranch(), SCIPstartDive(), SCIPtreemodelSelectCandidate(), selectVarMultAggrBranching(), separateOddCycles(), setupAndSolveSubscipRapidlearning(), subscipdataCopySubscip(), and updateDataStructures().
◆ SCIPgetDepth()
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
-
scip SCIP data structure
Definition at line 670 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetCurrentDepth(), Scip::tree, and TRUE.
Referenced by applyCliqueFixings(), applyGenVBounds(), applyNlobbt(), applyOptcumulative(), applyVboundsFixings(), branchAuxNonlinear(), computeCut(), computeRltCut(), createAndSplitProblem(), createAuxVar(), createCons(), createRow(), createSubscip(), detectNlhdlrs(), disableCons(), enforceCardinality(), enforceConflictgraph(), enforceConstraint(), execGenVBounds(), execRelpscost(), filterExistingLP(), findComponents(), initImplGraphSOS1(), initProblem(), performFixing(), performImplicationGraphAnalysis(), performRandRounding(), processRealBoundChg(), processWatchedVars(), propagateCons(), propagateCutoffboundBinvar(), propagateCutoffboundGlobally(), propagateRootRedcostBinvar(), removeFixedBinvars(), runVanillaStrongBranching(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_NLHDLRINITSEPA(), 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(), sepaImplBoundCutsSOS1(), separateIndicators(), separateSOS1(), setupAndSolveSubscipRapidlearning(), setupProbingSCIP(), solveNlp(), startProbing(), tryOneOpt(), and trySolCandidate().
◆ SCIPgetFocusDepth()
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
-
scip SCIP data structure
Definition at line 696 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetFocusDepth(), Scip::tree, and TRUE.
◆ SCIPgetPlungeDepth()
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
-
scip SCIP data structure
Definition at line 713 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()
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
-
scip SCIP data structure
Definition at line 110 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()
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
-
scip SCIP data structure
Definition at line 127 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()
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
-
scip SCIP data structure
Definition at line 146 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_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
-
scip SCIP data structure children pointer to store children array, or NULL if not needed nchildren pointer to store number of children, or NULL if not needed
Definition at line 164 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()
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
-
scip SCIP data structure
Definition at line 188 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_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
-
scip SCIP data structure siblings pointer to store siblings array, or NULL if not needed nsiblings pointer to store number of siblings, or NULL if not needed
Definition at line 206 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()
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
-
scip SCIP data structure
Definition at line 230 of file scip_tree.c.
References FALSE, SCIP_Tree::nsiblings, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.
Referenced by subtreeSumGapUpdate().
◆ SCIPgetLeaves()
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
-
scip SCIP data structure leaves pointer to store leaves array, or NULL if not needed nleaves pointer to store number of leaves, or NULL if not needed
Definition at line 248 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()
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
-
scip SCIP data structure
Definition at line 272 of file scip_tree.c.
References FALSE, SCIP_Tree::leaves, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPnodepqLen(), Scip::tree, and TRUE.
Referenced by subtreeSumGapUpdate().
◆ SCIPgetNNodesLeft()
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
-
scip SCIP data structure
Definition at line 644 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()
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
-
scip SCIP data structure
Definition at line 288 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetPrioChild(), Scip::tree, and TRUE.
Referenced by SCIP_DECL_NODESELSELECT().
◆ SCIPgetPrioSibling()
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
-
scip SCIP data structure
Definition at line 304 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetPrioSibling(), Scip::tree, and TRUE.
Referenced by SCIP_DECL_NODESELSELECT().
◆ SCIPgetBestChild()
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
-
scip SCIP data structure
Definition at line 320 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestChild(), Scip::set, Scip::tree, and TRUE.
Referenced by SCIP_DECL_NODESELSELECT().
◆ SCIPgetBestSibling()
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
-
scip SCIP data structure
Definition at line 336 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestSibling(), Scip::set, Scip::tree, and TRUE.
Referenced by SCIP_DECL_NODESELSELECT().
◆ SCIPgetBestLeaf()
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
-
scip SCIP data structure
Definition at line 352 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestLeaf(), Scip::tree, and TRUE.
Referenced by SCIP_DECL_NODESELSELECT().
◆ SCIPgetBestNode()
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
-
scip SCIP data structure
Definition at line 368 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetBestNode(), Scip::set, Scip::tree, and TRUE.
Referenced by SCIP_DECL_NODESELSELECT().
◆ SCIPgetBestboundNode()
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
-
scip SCIP data structure
Definition at line 384 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_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
-
scip SCIP data structure leaves pointer to store the leaves, or NULL if not needed children pointer to store the children, or NULL if not needed siblings pointer to store the siblings, or NULL if not needed nleaves pointer to store the number of leaves, or NULL nchildren pointer to store the number of children, or NULL nsiblings pointer to store the number of siblings, or NULL
Definition at line 398 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_RETCODE SCIPcutoffNode | ( | SCIP * | scip, |
SCIP_NODE * | node | ||
) |
marks node and whole sub tree to be cut off 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:
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
-
scip SCIP data structure node node that should be cut off
Definition at line 434 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().
◆ SCIPpruneTree()
SCIP_RETCODE SCIPpruneTree | ( | SCIP * | scip | ) |
removes all nodes from branch and bound tree that were marked to be cut off via SCIPcutoffNode()
- 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:
- Note
- In diving mode, the removal of nodes is delayed until diving ends.
- Parameters
-
scip SCIP data structure
Definition at line 457 of file scip_tree.c.
References Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, SCIP_Mem::probmem, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPinfinity(), SCIPtreeCutoff(), Scip::set, Scip::stat, Scip::tree, and TRUE.
◆ SCIPrepropagateNode()
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
-
scip SCIP data structure node node that should be propagated again
Definition at line 477 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()
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
-
scip SCIP data structure
Definition at line 496 of file scip_tree.c.
References SCIP_Tree::cutoffdepth, FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.
◆ SCIPgetRepropdepth()
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
-
scip SCIP data structure
Definition at line 512 of file scip_tree.c.
References FALSE, SCIP_Tree::repropdepth, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::tree, and TRUE.
◆ SCIPprintNodeRootPath()
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
-
scip SCIP data structure node node data file output file (or NULL for standard output)
Definition at line 529 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()
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
-
scip SCIP data structure solvelp should the LP be solved?
Definition at line 625 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeSetFocusNodeLP(), Scip::tree, and TRUE.
◆ SCIPwasNodeLastBranchParent()
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
-
scip SCIP data structure node tree node, or NULL to check focus node
Definition at line 731 of file scip_tree.c.
References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeWasNodeLastBranchParent(), Scip::tree, and TRUE.
Referenced by subtreeSumGapUpdate().