methods for nodes of the search tree of SCIP
SCIP_DECL_SORTPTRCOMP | ( | SCIPnodeCompLowerbound | ) |
void SCIPnodeGetParentBranchings | ( | SCIP_NODE * | node, |
SCIP_VAR ** | branchvars, | ||
SCIP_Real * | branchbounds, | ||
SCIP_BOUNDTYPE * | boundtypes, | ||
int * | nbranchvars, | ||
int | branchvarssize | ||
) |
returns the set of variable branchings that were performed in the parent node to create this node
node | node data |
branchvars | array of variables on which the branching has been performed in the parent node |
branchbounds | array of bounds which the branching in the parent node set |
boundtypes | array of boundtypes which the branching in the parent node set |
nbranchvars | number of variables on which branching has been performed in the parent node if this is larger than the array size, arrays should be reallocated and method should be called again |
branchvarssize | available slots in arrays |
Definition at line 7630 of file tree.c.
References SCIP_DomChgBound::boundchgs, SCIP_Node::domchg, SCIP_DomChg::domchgbound, SCIP_DomChgBound::nboundchgs, SCIP_BoundChg::newbound, SCIP_BOUNDCHGTYPE_BRANCHING, SCIPnodeGetDepth(), and SCIP_BoundChg::var.
Referenced by SCIPnodeGetAncestorBranchingPath(), SCIPnodeGetAncestorBranchings(), and SCIPnodeGetAncestorBranchingsPart().
void SCIPnodeGetAncestorBranchings | ( | SCIP_NODE * | node, |
SCIP_VAR ** | branchvars, | ||
SCIP_Real * | branchbounds, | ||
SCIP_BOUNDTYPE * | boundtypes, | ||
int * | nbranchvars, | ||
int | branchvarssize | ||
) |
returns the set of variable branchings that were performed in all ancestor nodes (nodes on the path to the root) to create this node
node | node data |
branchvars | array of variables on which the branchings has been performed in all ancestors |
branchbounds | array of bounds which the branchings in all ancestors set |
boundtypes | array of boundtypes which the branchings in all ancestors set |
nbranchvars | number of variables on which branchings have been performed in all ancestors if this is larger than the array size, arrays should be reallocated and method should be called again |
branchvarssize | available slots in arrays |
Definition at line 7694 of file tree.c.
References SCIP_Node::parent, SCIPnodeGetDepth(), and SCIPnodeGetParentBranchings().
Referenced by saveGlobalCons(), and writeBounds().
void SCIPnodeGetAncestorBranchingsPart | ( | SCIP_NODE * | node, |
SCIP_NODE * | parent, | ||
SCIP_VAR ** | branchvars, | ||
SCIP_Real * | branchbounds, | ||
SCIP_BOUNDTYPE * | boundtypes, | ||
int * | nbranchvars, | ||
int | branchvarssize | ||
) |
returns the set of variable branchings that were performed between the given node
and the given parent
node.
node | node data |
parent | node data of the last ancestor node |
branchvars | array of variables on which the branchings has been performed in all ancestors |
branchbounds | array of bounds which the branchings in all ancestors set |
boundtypes | array of boundtypes which the branchings in all ancestors set |
nbranchvars | number of variables on which branchings have been performed in all ancestors if this is larger than the array size, arrays should be reallocated and method should be called again |
branchvarssize | available slots in arrays |
Definition at line 7731 of file tree.c.
References SCIP_Node::parent, and SCIPnodeGetParentBranchings().
Referenced by saveAncestorBranchings().
SCIP_RETCODE SCIPnodePrintAncestorBranchings | ( | SCIP_NODE * | node, |
FILE * | file | ||
) |
outputs the path into given file stream in GML format
node | node data |
file | file to output the path |
Definition at line 7939 of file tree.c.
References SCIP_DomChgBound::boundchgs, SCIP_Node::domchg, SCIP_DomChg::domchgbound, SCIP_DomChgBound::nboundchgs, SCIP_Node::parent, SCIP_BOUNDCHGTYPE_BRANCHING, SCIP_BOUNDTYPE_LOWER, SCIP_MAXSTRLEN, SCIP_OKAY, SCIPgmlWriteArc(), SCIPgmlWriteClosing(), SCIPgmlWriteNode(), SCIPgmlWriteOpening(), SCIPnodeGetDepth(), SCIPsnprintf(), SCIPvarGetName(), and TRUE.
void SCIPnodeGetAncestorBranchingPath | ( | SCIP_NODE * | node, |
SCIP_VAR ** | branchvars, | ||
SCIP_Real * | branchbounds, | ||
SCIP_BOUNDTYPE * | boundtypes, | ||
int * | nbranchvars, | ||
int | branchvarssize, | ||
int * | nodeswitches, | ||
int * | nnodes, | ||
int | nodeswitchsize | ||
) |
returns the set of variable branchings that were performed in all ancestor nodes (nodes on the path to the root) to create this node sorted by the nodes, starting from the current node going up to the root
node | node data |
branchvars | array of variables on which the branchings has been performed in all ancestors |
branchbounds | array of bounds which the branchings in all ancestors set |
boundtypes | array of boundtypes which the branchings in all ancestors set |
nbranchvars | number of variables on which branchings have been performed in all ancestors if this is larger than the array size, arrays should be reallocated and method should be called again |
branchvarssize | available slots in arrays |
nodeswitches | marks, where in the arrays the branching decisions of the next node on the path start branchings performed at the parent of node always start at position 0. For single variable branching, nodeswitches[i] = i holds |
nnodes | number of nodes in the nodeswitch array |
nodeswitchsize | available slots in node switch array |
Definition at line 7991 of file tree.c.
References nnodes, SCIP_Node::parent, SCIPnodeGetDepth(), and SCIPnodeGetParentBranchings().
Referenced by SCIPprintNodeRootPath().
checks for two nodes whether they share the same root path, i.e., whether one is an ancestor of the other
node1 | node data |
node2 | node data |
Definition at line 8040 of file tree.c.
References SCIP_Node::parent, and SCIPnodeGetDepth().
finds the common ancestor node of two given nodes
node1 | node data |
node2 | node data |
Definition at line 8064 of file tree.c.
References SCIP_Node::parent, and SCIPnodeGetDepth().
SCIP_NODETYPE SCIPnodeGetType | ( | SCIP_NODE * | node | ) |
gets the type of the node
node | node |
Definition at line 7330 of file tree.c.
References SCIP_Node::nodetype.
Referenced by addNodesInformation(), applyDomainChanges(), focusnodeCleanupVars(), focusnodeToDeadend(), focusnodeToFork(), focusnodeToJunction(), focusnodeToLeaf(), focusnodeToPseudofork(), forkAddLP(), nodeActivate(), nodeAssignParent(), nodeDeactivate(), nodeReleaseParent(), nodeToLeaf(), priceAndCutLoop(), propagateDomains(), pseudoforkAddLP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_NODESELCOMP(), SCIPaddConflict(), SCIPchgChildPrio(), SCIPchgVarLbProbing(), SCIPchgVarObjProbing(), SCIPchgVarUbProbing(), SCIPchildChgNodeselPrio(), SCIPendStrongbranch(), SCIPfixVarProbing(), SCIPnodeAddBoundinfer(), SCIPnodeAddCons(), SCIPnodeAddHoleinfer(), SCIPnodeCaptureLPIState(), SCIPnodeCreateChild(), SCIPnodeFocus(), SCIPnodeFree(), SCIPnodepqBound(), SCIPnodepqClear(), SCIPnodePropagateImplics(), SCIPnodeReleaseLPIState(), SCIPprimalHeuristics(), SCIPreoptCheckCutoff(), SCIPstartDive(), SCIPtreeBacktrackProbing(), SCIPtreeEndProbing(), SCIPtreeInRepropagation(), SCIPtreeLoadLP(), SCIPtreeLoadLPState(), SCIPtreeLoadProbingLPState(), SCIPtreeMarkProbingNodeHasLP(), SCIPtreeSetProbingLPState(), SCIPvisualCutoffNode(), SCIPvisualFoundConflict(), SCIPvisualFoundSolution(), SCIPvisualMarkedRepropagateNode(), SCIPvisualNewChild(), SCIPvisualRepropagatedNode(), SCIPvisualSolvedNode(), SCIPvisualUpdateChild(), solveNode(), solveNodeInitialLP(), solveNodeRelax(), subrootConstructLP(), treeAddChild(), treeBacktrackProbing(), treeCheckPath(), treeChildrenToSiblings(), treeCreateProbingNode(), treeFindSwitchForks(), treeRemoveChild(), treeRemoveSibling(), treeSwitchPath(), treeUpdatePathLPSize(), and updatePseudocost().
SCIP_Longint SCIPnodeGetNumber | ( | SCIP_NODE * | node | ) |
gets successively assigned number of the node
node | node |
Definition at line 7340 of file tree.c.
References SCIP_Node::number.
Referenced by addBranchingComplementaritiesSOS1(), addLocalConss(), addNode(), addSplitcons(), applyDomainChanges(), applyVbounds(), collectDualInformation(), consdataPrint(), constructCompression(), createAndSplitProblem(), Exec(), findComponents(), focusnodeToDeadend(), focusnodeToFork(), focusnodeToJunction(), focusnodeToLeaf(), focusnodeToPseudofork(), initProblem(), nodeActivate(), nodeAssignParent(), nodeDeactivate(), nodeGetVisits(), nodeReleaseParent(), nodeRepropagate(), nodeToLeaf(), SCIP_DECL_CONSACTIVE(), SCIP_DECL_CONSDEACTIVE(), SCIP_DECL_CONSPROP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NODESELSELECT(), SCIP_DECL_PROPEXEC(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SORTPTRCOMP(), SCIPconflictstoreAddConflict(), SCIPnodeCaptureLPIState(), SCIPnodeCreateChild(), SCIPnodeCutoff(), SCIPnodeFocus(), SCIPnodeFree(), SCIPnodePropagateAgain(), SCIPnodePropagateImplics(), SCIPnodeReleaseLPIState(), SCIPreoptAddDualBndchg(), SCIPreoptApply(), SCIPreoptApplyCuts(), SCIPreoptCheckCutoff(), SCIPreoptGetNDualBndchgs(), SCIPtreeCutoff(), SCIPtreeLoadLP(), SCIPtreeLoadLPState(), SCIPvarUpdatePseudocost(), SCIPvisualMarkedRepropagateNode(), shrinkNode(), treeCreateProbingNode(), updateVisits(), and writeBounds().
int SCIPnodeGetDepth | ( | SCIP_NODE * | node | ) |
gets the depth of the node
node | node |
Definition at line 7350 of file tree.c.
References SCIP_Node::depth.
Referenced by addNode(), addNodesInformation(), applyDomainChanges(), applyProbing(), compareNodes(), computeBranchingVariables(), constructCompression(), ensureDepthInfoArraySize(), focusnodeToDeadend(), focusnodeToFork(), focusnodeToJunction(), focusnodeToLeaf(), focusnodeToPseudofork(), generateCut(), generateSecantCut(), generateSecantCutNoCheck(), getLastSavedNode(), nodeActivate(), nodeAssignParent(), nodeDeactivate(), nodeReleaseParent(), nodeRepropagate(), nodeToLeaf(), priceAndCutLoop(), propagateDomains(), releaseNodeFromDepthInfo(), removeNode(), reoptCheckLocalRestart(), saveGlobalCons(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIP_DECL_CONSACTIVE(), SCIP_DECL_CONSDEACTIVE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NODESELSELECT(), SCIPaddConsNode(), SCIPaddRowDive(), SCIPaddRowProbing(), SCIPanalyzeDeductionsProbing(), SCIPconflicthdlrExec(), SCIPconstructCurrentLP(), SCIPdelConsLocal(), SCIPdelConsNode(), SCIPnodeAddBoundinfer(), SCIPnodeAddCons(), SCIPnodeAddHoleinfer(), SCIPnodeCaptureLPIState(), SCIPnodeCutoff(), SCIPnodeFocus(), SCIPnodeFree(), SCIPnodeGetAncestorBranchingPath(), SCIPnodeGetAncestorBranchings(), SCIPnodeGetBdChgsAfterDual(), SCIPnodeGetConsProps(), SCIPnodeGetDualBoundchgs(), SCIPnodeGetParentBranchings(), SCIPnodepqBound(), SCIPnodePrintAncestorBranchings(), SCIPnodePropagateAgain(), SCIPnodePropagateImplics(), SCIPnodeReleaseLPIState(), SCIPnodesGetCommonAncestor(), SCIPnodesSharePath(), SCIPprimalHeuristics(), SCIPprintNodeRootPath(), SCIPreoptApplyCuts(), SCIPreoptCheckCutoff(), SCIPreoptGetChildIDs(), SCIPreoptGetNAddedConss(), SCIPreoptGetNLeaves(), SCIPreoptGetNNodes(), SCIPreoptGetSolveLP(), SCIPreoptResetDualBndchgs(), SCIPsepastoreApplyCuts(), SCIPsolveCIP(), SCIPtreeCreateProbingNode(), SCIPtreeCutoff(), SCIPtreeEndProbing(), SCIPtreeGetProbingDepth(), SCIPtreeGetProbingRoot(), SCIPtreeLoadLP(), SCIPtreeLoadLPState(), SCIPtreeProbing(), SCIPvisualCutoffNode(), SCIPvisualNewChild(), SCIPvisualSolvedNode(), SCIPvisualUpdateChild(), solveNode(), solveNodeInitialLP(), solveNodeLP(), tightenBounds(), treeApplyPendingBdchgs(), treeBacktrackProbing(), treeCreateProbingNode(), updatePseudocost(), updateVisits(), and writeBounds().
gets the lower bound of the node
node | node |
Definition at line 7360 of file tree.c.
References SCIP_Node::lowerbound.
Referenced by applyBounding(), branch(), enforceConstraints(), execRelpscost(), getNodeselScore(), nodeGetUctScore(), nodepqDelPos(), priceAndCutLoop(), propAndSolve(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NODESELSELECT(), SCIPbranchruleExecExternSol(), SCIPbranchruleExecLPSol(), SCIPbranchruleExecPseudoSol(), SCIPgetLocalDualbound(), SCIPgetLocalLowerbound(), SCIPgetNodeDualbound(), SCIPgetNodeLowerbound(), SCIPnodeFocus(), SCIPnodepqBound(), SCIPnodepqGetLowerbound(), SCIPnodepqInsert(), SCIPpriceLoop(), SCIPprimalHeuristics(), SCIPreoptSaveOpenNodes(), SCIPsolveCIP(), SCIPtreeBranchVar(), SCIPvisualCutoffNode(), SCIPvisualNewChild(), SCIPvisualSolvedNode(), SCIPvisualUpdateChild(), selectVarMultAggrBranching(), and updateEstimate().
gets the estimated value of the best feasible solution in subtree of the node
node | node |
Definition at line 7370 of file tree.c.
References SCIP_Node::estimate.
Referenced by addNodesInformation(), checkLeavesBelowIncumbent(), enforceConstraint(), Exec(), getNodeselScore(), nodeGetUctScore(), releaseNodeFromDepthInfo(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NODESELSELECT(), SCIP_DECL_SORTPTRCOMP(), SCIPgetLocalOrigEstimate(), SCIPgetLocalTransEstimate(), SCIPtreeBranchVar(), SCIPtreeBranchVarHole(), SCIPtreeBranchVarNary(), and SCIPtreeCalcChildEstimate().
SCIP_REOPTTYPE SCIPnodeGetReopttype | ( | SCIP_NODE * | node | ) |
gets the reoptimization type of a node
gets the reoptimization type of this node
node | node |
Definition at line 7380 of file tree.c.
References SCIP_Node::reopttype.
Referenced by getLastSavedNode(), and SCIPreoptGetSolveLP().
unsigned int SCIPnodeGetReoptID | ( | SCIP_NODE * | node | ) |
gets the unique id to identify the node during reoptimization; id is 0 if the node is the root or not part of the reoptimization tree
gets the unique id to identify the node during reoptimization; the id is 0 if the node is the root or not part of the reoptimization tree
node | node |
Definition at line 7411 of file tree.c.
References SCIP_Node::reoptid.
Referenced by addNode(), Exec(), getLastSavedNode(), reoptCheckLocalRestart(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIPreoptApplyCuts(), SCIPreoptGetChildIDs(), SCIPreoptGetLeaves(), SCIPreoptGetNAddedConss(), SCIPreoptGetNLeaves(), SCIPreoptGetNNodes(), SCIPreoptGetSolveLP(), SCIPreoptimizeNode(), and SCIPreoptResetDualBndchgs().
void SCIPnodeSetReopttype | ( | SCIP_NODE * | node, |
SCIP_REOPTTYPE | reopttype | ||
) |
sets the reoptimization type of the node
sets the reoptimization type of this node
node | node |
reopttype | reoptimization type |
Definition at line 7390 of file tree.c.
References SCIP_Node::reopttype, SCIP_REOPTTYPE_FEASIBLE, SCIP_REOPTTYPE_INFSUBTREE, SCIP_REOPTTYPE_LEAF, SCIP_REOPTTYPE_LOGICORNODE, SCIP_REOPTTYPE_NONE, SCIP_REOPTTYPE_PRUNED, SCIP_REOPTTYPE_STRBRANCHED, and SCIP_REOPTTYPE_TRANSIT.
Referenced by addNode(), getLastSavedNode(), SCIPreoptApply(), SCIPreoptSplitRoot(), and shrinkNode().
void SCIPnodeSetReoptID | ( | SCIP_NODE * | node, |
unsigned int | id | ||
) |
sets a unique id to identify the node during reoptimization
set a unique id to identify the node during reoptimization
node | node |
id | unique id |
Definition at line 7421 of file tree.c.
References SCIP_Node::reoptid.
Referenced by addNode(), getLastSavedNode(), and SCIPreoptApply().
void SCIPnodeGetNDomchg | ( | SCIP_NODE * | node, |
int * | nbranchings, | ||
int * | nconsprop, | ||
int * | nprop | ||
) |
counts the number of bound changes due to branching, constraint propagation, and propagation
node | node |
nbranchings | pointer to store number of branchings (or NULL if not needed) |
nconsprop | pointer to store number of constraint propagations (or NULL if not needed) |
nprop | pointer to store number of propagations (or NULL if not needed) |
Definition at line 7445 of file tree.c.
References SCIP_DomChgBound::boundchgs, SCIP_BoundChg::boundchgtype, SCIP_Node::domchg, SCIP_DomChg::domchgbound, SCIP_DomChgBound::nboundchgs, SCIP_Bool, SCIP_BOUNDCHGTYPE_BRANCHING, SCIP_BOUNDCHGTYPE_CONSINFER, and SCIP_BOUNDCHGTYPE_PROPINFER.
Referenced by getLastSavedNode(), SCIPnodeGetConsProps(), and updateConstraintPropagation().
SCIP_DOMCHG* SCIPnodeGetDomchg | ( | SCIP_NODE * | node | ) |
gets the domain change information of the node, i.e., the information about the differences in the variables domains to the parent node
node | node |
Definition at line 7435 of file tree.c.
References SCIP_Node::domchg.
Referenced by computeBranchingVariables(), and SCIPendStrongbranch().
gets the parent node of a node in the branch-and-bound tree, if any
node | node |
Definition at line 7620 of file tree.c.
References SCIP_Node::parent.
Referenced by addNode(), compareNodes(), computeBranchingVariables(), getLastSavedNode(), nodeGetUctScore(), SCIPvarUpdatePseudocost(), and updateVisits().
returns whether node is in the path to the current node
node | node |
Definition at line 8095 of file tree.c.
References SCIP_Node::active.
Referenced by propagateDomains(), SCIPnodePropagateImplics(), and updatePseudocost().
returns whether the node is marked to be propagated again
node | node data |
Definition at line 8105 of file tree.c.
References SCIP_Node::reprop.
Referenced by updateLoopStatus().
SCIP_CONSSETCHG* SCIPnodeGetConssetchg | ( | SCIP_NODE * | node | ) |