Row methods

Detailed Description

Functions
	SCIP_DECL_SORTPTRCOMP (SCIProwComp)
void	SCIProwLock (SCIP_ROW *row)
void	SCIProwUnlock (SCIP_ROW *row)
SCIP_Real	SCIProwGetScalarProduct (SCIP_ROW *row1, SCIP_ROW *row2)
SCIP_Real	SCIProwGetParallelism (SCIP_ROW *row1, SCIP_ROW *row2, char orthofunc)
SCIP_Real	SCIProwGetOrthogonality (SCIP_ROW *row1, SCIP_ROW *row2, char orthofunc)
void	SCIProwSort (SCIP_ROW *row)
int	SCIProwGetNNonz (SCIP_ROW *row)
int	SCIProwGetNLPNonz (SCIP_ROW *row)
SCIP_COL **	SCIProwGetCols (SCIP_ROW *row)
SCIP_Real *	SCIProwGetVals (SCIP_ROW *row)
SCIP_Real	SCIProwGetConstant (SCIP_ROW *row)
SCIP_Real	SCIProwGetNorm (SCIP_ROW *row)
SCIP_Real	SCIProwGetSumNorm (SCIP_ROW *row)
SCIP_Real	SCIProwGetLhs (SCIP_ROW *row)
SCIP_Real	SCIProwGetRhs (SCIP_ROW *row)
SCIP_Real	SCIProwGetDualsol (SCIP_ROW *row)
SCIP_Real	SCIProwGetDualfarkas (SCIP_ROW *row)
SCIP_BASESTAT	SCIProwGetBasisStatus (SCIP_ROW *row)
const char *	SCIProwGetName (SCIP_ROW *row)
int	SCIProwGetIndex (SCIP_ROW *row)
int	SCIProwGetAge (SCIP_ROW *row)
int	SCIProwGetRank (SCIP_ROW *row)
SCIP_Bool	SCIProwIsIntegral (SCIP_ROW *row)
SCIP_Bool	SCIProwIsLocal (SCIP_ROW *row)
SCIP_Bool	SCIProwIsModifiable (SCIP_ROW *row)
SCIP_Bool	SCIProwIsRemovable (SCIP_ROW *row)
SCIP_ROWORIGINTYPE	SCIProwGetOrigintype (SCIP_ROW *row)
SCIP_CONSHDLR *	SCIProwGetOriginCons (SCIP_ROW *row)
SCIP_SEPA *	SCIProwGetOriginSepa (SCIP_ROW *row)
SCIP_Bool	SCIProwIsInGlobalCutpool (SCIP_ROW *row)
int	SCIProwGetLPPos (SCIP_ROW *row)
int	SCIProwGetLPDepth (SCIP_ROW *row)
SCIP_Bool	SCIProwIsInLP (SCIP_ROW *row)
void	SCIProwChgRank (SCIP_ROW *row, int rank)

Function Documentation

SCIP_DECL_SORTPTRCOMP

(

SCIProwComp

)

comparison method for sorting rows by non-decreasing index

Definition at line 901 of file lp.c.

References NULL, and SCIProwGetIndex().

void SCIProwLock

(

SCIP_ROW *

row

)

locks an unmodifiable row, which forbids further changes; has no effect on modifiable rows

Parameters

row

LP row

Definition at line 5069 of file lp.c.

References SCIP_Row::modifiable, SCIP_Row::name, SCIP_Row::nlocks, NULL, SCIP_Row::nuses, and SCIPdebugMessage.

Referenced by SCIPcutpoolAddNewRow(), and SCIPlpAddRow().

void SCIProwUnlock

(

SCIP_ROW *

row

)

unlocks a lock of an unmodifiable row; a row with no sealed lock may be modified; has no effect on modifiable rows

Parameters

row

LP row

Definition at line 5084 of file lp.c.

References SCIP_Row::modifiable, SCIP_Row::name, SCIP_Row::nlocks, NULL, SCIP_Row::nuses, and SCIPdebugMessage.

Referenced by cutpoolDelCut(), lpDelRowset(), SCIPcutpoolClear(), and SCIPlpShrinkRows().

SCIP_Real SCIProwGetScalarProduct	(	SCIP_ROW *	row1,
		SCIP_ROW *	row2
	)

returns the scalar product of the coefficient vectors of the two given rows

returns the scalar product of the coefficient vectors of the two given rows

Note

the scalar product is computed w.r.t. the current LP columns only

Parameters

row1	first LP row
row2	second LP row

Definition at line 6612 of file lp.c.

References SCIP_Row::cols, SCIP_Row::cols_index, FALSE, SCIP_Col::index, SCIP_Row::len, SCIP_Row::lpcolssorted, SCIP_Col::lppos, MAX, SCIP_Row::nlpcols, SCIP_Row::nonlpcolssorted, NULL, SCIP_Row::nunlinked, SCIP_Bool, SCIP_Real, SCIProwSort(), SCIPswapPointers(), TRUE, and SCIP_Row::vals.

Referenced by SCIProwGetParallelism().

SCIP_Real SCIProwGetParallelism	(	SCIP_ROW *	row1,
		SCIP_ROW *	row2,
		char	orthofunc
	)

returns the degree of parallelism between the hyperplanes defined by the two row vectors v, w: p = |v*w|/(|v|*|w|); the hyperplanes are parallel, iff p = 1, they are orthogonal, iff p = 0

Parameters

row1	first LP row
row2	second LP row
orthofunc	function used for calc. scalar prod. ('e'uclidean, 'd'iscrete)

Definition at line 7328 of file lp.c.

References REALABS, SCIP_Real, SCIPABORT, SCIPerrorMessage, SCIProwGetDiscreteScalarProduct(), SCIProwGetNNonz(), SCIProwGetNorm(), SCIProwGetScalarProduct(), and sqrt().

Referenced by createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), and SCIProwGetOrthogonality().

SCIP_Real SCIProwGetOrthogonality	(	SCIP_ROW *	row1,
		SCIP_ROW *	row2,
		char	orthofunc
	)

returns the degree of orthogonality between the hyperplanes defined by the two row vectors v, w: o = 1 - |v*w|/(|v|*|w|); the hyperplanes are orthogonal, iff p = 1, they are parallel, iff p = 0

Parameters

row1	first LP row
row2	second LP row
orthofunc	function used for calc. scalar prod. ('e'uclidean, 'd'iscrete)

Definition at line 7360 of file lp.c.

References SCIProwGetParallelism().

Referenced by sepastoreUpdateOrthogonalities().

void SCIProwSort

(

SCIP_ROW *

row

)

sorts row entries such that LP columns precede non-LP columns and inside both parts lower column indices precede higher ones

Parameters

row	row to be sorted

Definition at line 5705 of file lp.c.

References SCIP_Row::cols, SCIP_Row::delaysort, SCIP_Col::index, SCIP_Row::nlpcols, NULL, rowSortLP(), and rowSortNonLP().

Referenced by rowMerge(), SCIP_DECL_HASHKEYEQ(), SCIProwGetDiscreteScalarProduct(), and SCIProwGetScalarProduct().

int SCIProwGetNNonz

(

SCIP_ROW *

row

)

get number of nonzero entries in row vector

Parameters

row

LP row

Definition at line 18558 of file lp.c.

References SCIP_Row::len, and NULL.

Referenced by addAltLPRow(), copyCuts(), createRows(), createSubproblem(), generateAverageNBRay(), generateCut(), generateCutUnboundedLP(), getMaxAbsWeightCalcSparsity(), rowFindSlackVar(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddCut(), SCIPaddVarsToRow(), SCIPaddVarsToRowSameCoef(), SCIPcutpoolSeparate(), SCIPnlrowCreateFromRow(), SCIProwGetParallelism(), SCIPsepastoreApplyCuts(), SCIPsepastoreIsCutApplicable(), sepastoreAddCut(), sepastoreApplyBdchg(), sepastoreIsBdchgApplicable(), and sepastoreUpdateOrthogonalities().

int SCIProwGetNLPNonz

(

SCIP_ROW *

row

)

get number of nonzero entries in row vector, that correspond to columns currently in the SCIP_LP;

Warning

This method is only applicable on rows, that are completely linked to their columns (e.g. a row that is in the current LP and the LP was solved, or a row that was in a solved LP and didn't change afterwards

Parameters

row

LP row

Definition at line 18572 of file lp.c.

References SCIP_Row::nlpcols, NULL, and SCIP_Row::nunlinked.

Referenced by addFlowrowToCommodity(), aggregation(), cleanupNetwork(), collectIncidentFlowCols(), computeCut(), constructSNFRelaxation(), createSubscip(), deleteCommodity(), extractCapacities(), extractCapacityRows(), extractFlowRows(), extractNodes(), findUncapacitatedArcs(), generateClusterCuts(), getFlowrowFit(), getNodeSimilarityScore(), getZerohalfWeightvectorFromSelectedRowsBitarray(), identifySourcesTargets(), initMatrix(), mcfnetworkFill(), nodepairqueueCreate(), selectRounding(), selectShifting(), and separateCuts().

SCIP_COL** SCIProwGetCols

(

SCIP_ROW *

row

)

gets array with columns of nonzero entries

Parameters

row

LP row

Definition at line 18583 of file lp.c.

References SCIP_Row::cols, and NULL.

Referenced by addAltLPRow(), addFlowrowToCommodity(), aggregation(), cleanupNetwork(), collectIncidentFlowCols(), computeCut(), constructSNFRelaxation(), copyCuts(), createRows(), createSubproblem(), deleteCommodity(), extractCapacities(), extractCapacityRows(), extractFlowRows(), extractNodes(), findUncapacitatedArcs(), generateAverageNBRay(), generateClusterCuts(), generateCut(), generateCutUnboundedLP(), getFlowrowFit(), getNodeSimilarityScore(), identifySourcesTargets(), initMatrix(), mcfnetworkFill(), nodepairqueueCreate(), rowFindSlackVar(), SCIP_DECL_HEUREXEC(), SCIPnlrowCreateFromRow(), selectRounding(), selectShifting(), sepastoreApplyBdchg(), and sepastoreIsBdchgApplicable().

SCIP_Real* SCIProwGetVals

(

SCIP_ROW *

row

)

gets array with coefficients of nonzero entries

Parameters

row

LP row

Definition at line 18593 of file lp.c.

References NULL, and SCIP_Row::vals.

Referenced by addAltLPRow(), addFlowrowToCommodity(), aggregation(), computeCut(), constructSNFRelaxation(), copyCuts(), createRows(), createSubproblem(), extractCapacityRows(), extractFlowRows(), extractNodes(), generateAverageNBRay(), generateClusterCuts(), generateCut(), generateCutUnboundedLP(), getFlowrowFit(), getNodeSimilarityScore(), initMatrix(), mcfnetworkFill(), rowFindSlackVar(), SCIP_DECL_HEUREXEC(), SCIPnlrowCreateFromRow(), selectRounding(), selectShifting(), sepastoreApplyBdchg(), and sepastoreIsBdchgApplicable().

SCIP_Real SCIProwGetConstant

(

SCIP_ROW *

row

)

gets constant shift of row

Parameters

row

LP row

Definition at line 18603 of file lp.c.

References SCIP_Row::constant, and NULL.

Referenced by addAltLPRow(), addFlowrowToCommodity(), addSideRemoval(), computeCut(), constructSNFRelaxation(), copyCuts(), createRows(), createSubproblem(), createSubscip(), extractCapacityRows(), extractFlowRows(), generateClusterCuts(), initMatrix(), nodepairqueueCreate(), SCIP_DECL_HEUREXEC(), SCIPnlrowCreateFromRow(), sepastoreApplyBdchg(), and sepastoreIsBdchgApplicable().

SCIP_Real SCIProwGetNorm

(

SCIP_ROW *

row

)

gets Euclidean norm of row vector

Parameters

row

LP row

Definition at line 18613 of file lp.c.

References checkRowSqrnorm, NULL, SCIP_Row::sqrnorm, and sqrt().

Referenced by createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), getNActiveConsScore(), SCIP_DECL_SEPAEXECLP(), SCIProwGetLPEfficacy(), SCIProwGetNLPEfficacy(), SCIProwGetParallelism(), SCIProwGetRelaxEfficacy(), SCIProwGetSolEfficacy(), and separateCuts().

SCIP_Real SCIProwGetSumNorm

(

SCIP_ROW *

row

)

gets sum norm of row vector (sum of absolute values of coefficients)

Parameters

row

LP row

Definition at line 18625 of file lp.c.

References checkRowSumnorm, NULL, and SCIP_Row::sumnorm.

Referenced by SCIProwGetLPEfficacy(), SCIProwGetNLPEfficacy(), SCIProwGetRelaxEfficacy(), and SCIProwGetSolEfficacy().

SCIP_Real SCIProwGetLhs

(

SCIP_ROW *

row

)

returns the left hand side of the row

Parameters

row

LP row

Definition at line 18637 of file lp.c.

References SCIP_Row::lhs, and NULL.

Referenced by addAltLPRow(), addConcaveEstimatorBivariate(), addConcaveEstimatorMultivariate(), addConcaveEstimatorUnivariate(), addFlowrowToCommodity(), addIntervalGradientEstimator(), addLinearization(), addLinearizationCuts(), addSideRemoval(), aggregation(), calcShiftVal(), computeCut(), conflictAnalyzeLP(), constructSNFRelaxation(), copyCuts(), createRows(), createSubproblem(), createSubscip(), determineBound(), extractCapacityRows(), extractFlowRows(), generateClusterCuts(), generateCut(), generateSparseCut(), getNActiveConsScore(), handleNewVariableSOS2(), initMatrix(), invertCommodity(), nodepairqueueCreate(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPlpRemoveRedundantRows(), SCIPnlrowCreateFromRow(), SCIPsepastoreAddCut(), SCIPsolAdjustImplicitSolVals(), selectShifting(), separateCuts(), separatePoint(), sepastoreAddCut(), sepastoreApplyBdchg(), sepastoreIsBdchgApplicable(), sepastoreIsCutRedundant(), sepastoreIsCutRedundantOrInfeasible(), shiftValues(), updateSlacks(), and updateViolations().

SCIP_Real SCIProwGetRhs

(

SCIP_ROW *

row

)

returns the right hand side of the row

Parameters

row

LP row

Definition at line 18647 of file lp.c.

References NULL, and SCIP_Row::rhs.

Referenced by addAltLPRow(), addConcaveEstimatorBivariate(), addConcaveEstimatorMultivariate(), addConcaveEstimatorUnivariate(), addFlowrowToCommodity(), addIntervalGradientEstimator(), addLinearization(), addLinearizationCuts(), addSideRemoval(), aggregation(), calcShiftVal(), computeCut(), conflictAnalyzeLP(), constructSNFRelaxation(), copyCuts(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createRows(), createSubproblem(), createSubscip(), determineBound(), evaluateCutNumerics(), extractCapacityRows(), extractFlowRows(), generateClusterCuts(), generateCut(), generateOddCycleCut(), generateSparseCut(), getNActiveConsScore(), handleNewVariableSOS2(), initMatrix(), invertCommodity(), nodepairqueueCreate(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPlpRemoveRedundantRows(), SCIPnlrowCreateFromRow(), SCIPsepastoreAddCut(), SCIPsolAdjustImplicitSolVals(), selectShifting(), separateCuts(), separatePoint(), sepastoreAddCut(), sepastoreApplyBdchg(), sepastoreIsBdchgApplicable(), sepastoreIsCutRedundant(), sepastoreIsCutRedundantOrInfeasible(), shiftValues(), updateSlacks(), and updateViolations().

SCIP_Real SCIProwGetDualsol

(

SCIP_ROW *

row

)

gets the dual LP solution of a row

Parameters

row

LP row

Definition at line 18657 of file lp.c.

References SCIP_Row::dualsol, SCIP_Row::lppos, and NULL.

Referenced by addFlowrowToCommodity(), extractCapacityRows(), extractFlowRows(), generateAverageNBRay(), generateAverageRay(), generateClusterCuts(), getNActiveConsScore(), nodepairqueueCreate(), SCIP_DECL_BRANCHEXECLP(), SCIPgetDualsolLogicor(), SCIPgetDualsolVarbound(), and separateCuts().

SCIP_Real SCIProwGetDualfarkas

(

SCIP_ROW *

row

)

gets the dual Farkas coefficient of a row in an infeasible LP

Parameters

row

LP row

Definition at line 18670 of file lp.c.

References SCIP_Row::dualfarkas, SCIP_Row::lppos, and NULL.

Referenced by SCIPgetDualfarkasLogicor(), and SCIPgetDualfarkasVarbound().

SCIP_BASESTAT SCIProwGetBasisStatus

(

SCIP_ROW *

row

)

gets the basis status of a row in the LP solution; only valid for LPs with status SCIP_LPSOLSTAT_OPTIMAL and with SCIPisLPSolBasic(scip) == TRUE; returns SCIP_BASESTAT_BASIC for rows not in the current SCIP_LP

Parameters

row

LP row

Definition at line 18685 of file lp.c.

References SCIP_Row::basisstatus, SCIP_Row::lppos, NULL, and SCIP_BASESTAT_BASIC.

Referenced by SCIP_DECL_SEPAEXECLP().

const char* SCIProwGetName

(

SCIP_ROW *

row

)

returns the name of the row

Parameters

row

LP row

Definition at line 18696 of file lp.c.

References SCIP_Row::name, and NULL.

Referenced by addFlowrowToCommodity(), addLinearizationCuts(), aggregation(), calcShiftVal(), conflictAnalyzeLP(), copyCuts(), createRows(), createSubproblem(), createSubscip(), deleteCommodity(), determineBound(), extractCapacities(), extractCapacityRows(), extractFlow(), extractFlowRows(), extractNodes(), findUncapacitatedArcs(), generateClusterCuts(), generateCut(), getFlowrowFit(), getNodeSimilarityScore(), getZerohalfWeightvectorFromSelectedRowsBitarray(), initMatrix(), nodepairqueueCreate(), relaxVar(), rowFindSlackVar(), SCIP_DECL_CONSINITLP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddRowIndicator(), SCIPcutpoolAddNewRow(), SCIPcutpoolDelRow(), SCIPcutpoolSeparate(), SCIPlpRemoveRedundantRows(), SCIPnlrowCreateFromRow(), SCIProwCalcIntegralScalar(), SCIPsepastoreApplyCuts(), separateCuts(), sepastoreAddCut(), sepastoreApplyBdchg(), sepastoreApplyCut(), sepastoreIsCutRedundant(), sepastoreIsCutRedundantOrInfeasible(), sepastoreUpdateOrthogonalities(), sumMIRRow(), sumStrongCGRow(), undoBdchgsDualfarkas(), and undoBdchgsDualsol().

int SCIProwGetIndex

(

SCIP_ROW *

row

)

gets unique index of row

Parameters

row

LP row

Definition at line 18706 of file lp.c.

References SCIP_Row::index, and NULL.

Referenced by checkConstraintMatching(), determineBound(), SCIP_DECL_SORTPTRCOMP(), and varColCompare().

int SCIProwGetAge

(

SCIP_ROW *

row

)

gets age of row

Parameters

row

LP row

Definition at line 18716 of file lp.c.

References SCIP_Row::age, and NULL.

Referenced by createSubscip().

int SCIProwGetRank

(

SCIP_ROW *

row

)

gets rank of row

Parameters

row

LP row

Definition at line 18726 of file lp.c.

References NULL, and SCIP_Row::rank.

Referenced by addCut(), computeCut(), createCGCutCMIR(), createCGCutStrongCG(), and evaluateCutNumerics().

SCIP_Bool SCIProwIsIntegral

(

SCIP_ROW *

row

)

returns TRUE iff the activity of the row (without the row's constant) is always integral in a feasible solution

Parameters

row

LP row

Definition at line 18736 of file lp.c.

References SCIP_Row::integral, and NULL.

Referenced by computeCut(), createSubscip(), and SCIP_DECL_SEPAEXECLP().

SCIP_Bool SCIProwIsLocal

(

SCIP_ROW *

row

)

returns TRUE iff row is only valid locally

Parameters

row

LP row

Definition at line 18746 of file lp.c.

References SCIP_Row::local, and NULL.

Referenced by addAltLPRow(), addLinearizationCuts(), calcShiftVal(), computeCut(), conflictAnalyzeLP(), copyCuts(), createCGCutCMIR(), createCGCutStrongCG(), createRows(), createSubproblem(), createSubscip(), determineBound(), generateCut(), SCIP_DECL_CONSINITLP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIPaddRowIndicator(), SCIPcutpoolAddNewRow(), SCIPsolAdjustImplicitSolVals(), separateCuts(), separatePoint(), sepastoreAddCut(), sepastoreApplyBdchg(), sepastoreIsBdchgApplicable(), transformColumn(), updateActivities(), and updateRowActivities().

SCIP_Bool SCIProwIsModifiable

(

SCIP_ROW *

row

)

returns TRUE iff row is modifiable during node processing (subject to column generation)

Parameters

row

LP row

Definition at line 18756 of file lp.c.

References SCIP_Row::modifiable, and NULL.

Referenced by aggregation(), computeCut(), copyCuts(), createCGCutCMIR(), createCGCutStrongCG(), createSubscip(), extractCapacityRows(), extractFlowRows(), SCIP_DECL_SEPAEXECLP(), SCIPcutpoolAddNewRow(), SCIPcutpoolSeparate(), SCIPlpComputeRelIntPoint(), SCIPsepastoreApplyCuts(), SCIPsepastoreIsCutApplicable(), sepastoreAddCut(), sepastoreApplyBdchg(), sepastoreIsBdchgApplicable(), sepastoreIsCutRedundant(), sepastoreIsCutRedundantOrInfeasible(), and transformColumn().

SCIP_Bool SCIProwIsRemovable

(

SCIP_ROW *

row

)

returns TRUE iff row is removable from the LP (due to aging or cleanup)

Parameters

row

LP row

Definition at line 18766 of file lp.c.

References NULL, and SCIP_Row::removable.

Referenced by cutpoolDelCut(), SCIPcutpoolAddNewRow(), and SCIPlpWriteMip().

SCIP_ROWORIGINTYPE SCIProwGetOrigintype

(

SCIP_ROW *

row

)

returns type of origin that created the row

Parameters

row

LP row

Definition at line 18776 of file lp.c.

References NULL, and SCIP_Row::origintype.

SCIP_CONSHDLR* SCIProwGetOriginCons

(

SCIP_ROW *

row

)

returns origin constraint handler that created the row (NULL if not available)

Parameters

row

LP row

Definition at line 18786 of file lp.c.

References NULL, SCIP_Row::origin, SCIP_Row::origintype, and SCIP_ROWORIGINTYPE_CONS.

Referenced by SCIPcutpoolSeparate().

SCIP_SEPA* SCIProwGetOriginSepa

(

SCIP_ROW *

row

)

returns origin separator that created the row (NULL if not available)

Parameters

row

LP row

Definition at line 18801 of file lp.c.

References NULL, SCIP_Row::origin, SCIP_Row::origintype, and SCIP_ROWORIGINTYPE_SEPA.

Referenced by computeCut(), createSubscip(), and SCIPcutpoolSeparate().

SCIP_Bool SCIProwIsInGlobalCutpool

(

SCIP_ROW *

row

)

returns TRUE iff row is member of the global cut pool

Parameters

row

LP row

Definition at line 18816 of file lp.c.

References SCIP_Row::inglobalcutpool, and NULL.

Referenced by computeScore().

int SCIProwGetLPPos

(

SCIP_ROW *

row

)

gets position of row in current LP, or -1 if it is not in LP

Parameters

row

LP row

Definition at line 18826 of file lp.c.

References SCIP_Row::lpdepth, SCIP_Row::lppos, and NULL.

Referenced by addFlowrowToCommodity(), addFracCounter(), addSideRemoval(), aggregation(), calcShiftVal(), calculateBounds(), cleanupNetwork(), conflictAnalyzeLP(), createSubscip(), deleteCommodity(), determineBound(), extractCapacityRows(), extractFlowRows(), extractNodes(), generateClusterCuts(), getFlowrowFit(), getIncidentNodes(), getNextFlowrow(), getNodeSimilarityScore(), identifySourcesTargets(), initMatrix(), invertCommodity(), mcfnetworkFill(), relaxVar(), SCIP_DECL_HEUREXEC(), separateCuts(), shiftValues(), transformColumn(), updateActivities(), updateRowActivities(), updateSlacks(), and updateViolations().

int SCIProwGetLPDepth

(

SCIP_ROW *

row

)

gets depth in the tree where the row entered the LP, or -1 if it is not in LP

Parameters

row

LP row

Definition at line 18837 of file lp.c.

References SCIP_Row::lpdepth, SCIP_Row::lppos, and NULL.

SCIP_Bool SCIProwIsInLP

(

SCIP_ROW *

row

)

returns TRUE iff row is member of current LP

Parameters

row

LP row

Definition at line 18848 of file lp.c.

References SCIP_Row::lpdepth, SCIP_Row::lppos, and NULL.

Referenced by addCut(), addCuts(), addRelaxation(), allRowsInLP(), calcShiftVal(), checkCons(), copyCuts(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIPcutpoolSeparate(), SCIPsepastoreAddCut(), SCIPsolAdjustImplicitSolVals(), separateCons(), separateConsBinaryRepresentation(), separateCoverCutsCons(), separateCuts(), sepastoreAddCut(), sepastoreApplyCut(), and updateActivities().

void SCIProwChgRank	(	SCIP_ROW *	row,
		int	rank
	)

changes the rank of LP row

Parameters

row	LP row
rank	new value for rank

Definition at line 18859 of file lp.c.

References NULL, and SCIP_Row::rank.

Referenced by addCut(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createZerohalfCutFromZerohalfWeightvector(), generateOddCycleCut(), newsolCliqueAddRow(), and SCIP_DECL_SEPAEXECLP().