SCIP_Col Struct Reference

Detailed Description

LP column; The row vector of the LP column is partitioned into two parts: The first col->nlprows rows in the rows array are the ones that belong to the current LP (col->rows[j]->lppos >= 0) and that are linked to the column (col->linkpos[j] >= 0). The remaining col->len - col->nlprows rows in the rows array are the ones that don't belong to the current LP (col->rows[j]->lppos == -1) or that are not linked to the column (col->linkpos[j] == -1).

Definition at line 126 of file struct_lp.h.

#include <struct_lp.h>

Data Fields
SCIP_Real	obj
SCIP_Real	lb
SCIP_Real	ub
SCIP_Real	unchangedobj
SCIP_Real	lazylb
SCIP_Real	lazyub
SCIP_Real	flushedobj
SCIP_Real	flushedlb
SCIP_Real	flushedub
SCIP_Real	primsol
SCIP_Real	redcost
SCIP_Real	farkascoef
SCIP_Real	minprimsol
SCIP_Real	maxprimsol
SCIP_Real	sbdown
SCIP_Real	sbup
SCIP_Real	sbsolval
SCIP_Real	sblpobjval
SCIP_Longint	sbnode
SCIP_Longint	obsoletenode
SCIP_COLSOLVALS *	storedsolvals
SCIP_VAR *	var
SCIP_ROW **	rows
SCIP_Real *	vals
SCIP_Longint	validredcostlp
SCIP_Longint	validfarkaslp
SCIP_Longint	validsblp
int *	linkpos
int	index
int	size
int	len
int	nlprows
int	nunlinked
int	lppos
int	lpipos
int	lpdepth
int	sbitlim
int	nsbcalls
int	age
int	var_probindex
unsigned int	basisstatus:2
unsigned int	lprowssorted:1
unsigned int	nonlprowssorted:1
unsigned int	objchanged:1
unsigned int	lbchanged:1
unsigned int	ubchanged:1
unsigned int	coefchanged:1
unsigned int	integral:1
unsigned int	removable:1
unsigned int	sbdownvalid:1
unsigned int	sbupvalid:1

Field Documentation

obj

SCIP_Real SCIP_Col::obj

current objective value of column in LP (might be changed in diving or probing)

Definition at line 128 of file struct_lp.h.

Referenced by colCalcInternalRedcost(), computeRelIntPoint(), lpFlushAddCols(), lpFlushChgCols(), provedBound(), SCIPcolCalcRedcost(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolGetBestBound(), SCIPcolGetObj(), SCIPcolPrint(), SCIPlpAddCol(), SCIPlpEndDive(), SCIPlpGetSol(), SCIPlpGetUnboundedSol(), SCIPlpMarkFlushed(), SCIPlpStartDive(), and SCIPlpWriteMip().

lb

SCIP_Real SCIP_Col::lb

current lower bound of column in LP

Definition at line 129 of file struct_lp.h.

Referenced by analyzeStrongbranch(), branchcandCalcLPCands(), computeLPBounds(), computeRelIntPoint(), provedBound(), rowCalcActivityBounds(), rowScale(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolGetBestBound(), SCIPcolGetFarkasValue(), SCIPcolGetFeasibility(), SCIPcolGetLb(), SCIPcolPrint(), SCIPconflictAnalyzeStrongbranch(), SCIPlpAddCol(), SCIPlpEndDive(), SCIPlpGetSol(), SCIPlpGetUnboundedSol(), SCIPlpMarkFlushed(), SCIPlpStartDive(), SCIPlpWriteMip(), SCIProwGetSolActivity(), and updateLazyBounds().

ub

SCIP_Real SCIP_Col::ub

current upper bound of column in LP

Definition at line 130 of file struct_lp.h.

Referenced by analyzeStrongbranch(), branchcandCalcLPCands(), computeLPBounds(), computeRelIntPoint(), provedBound(), rowCalcActivityBounds(), rowScale(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolGetBestBound(), SCIPcolGetFarkasValue(), SCIPcolGetFeasibility(), SCIPcolGetUb(), SCIPcolPrint(), SCIPconflictAnalyzeStrongbranch(), SCIPlpAddCol(), SCIPlpEndDive(), SCIPlpGetUnboundedSol(), SCIPlpMarkFlushed(), SCIPlpStartDive(), SCIPlpWriteMip(), SCIProwGetSolActivity(), and updateLazyBounds().

unchangedobj

SCIP_Real SCIP_Col::unchangedobj

unchanged objective value of column (ignoring diving or probing changes)

Definition at line 131 of file struct_lp.h.

Referenced by lpDelColset(), rowAddNorms(), rowDelNorms(), SCIPcolChgObj(), SCIPlpAddCol(), and SCIPlpShrinkCols().

lazylb

SCIP_Real SCIP_Col::lazylb

lazy lower bound of the column; if the current lower bound is not greater than the lazy lower bound, then the lower bound has not to be added to the LP

Definition at line 132 of file struct_lp.h.

Referenced by checkLazyBounds(), checkLazyColArray(), computeLPBounds(), SCIPlpAddCol(), and updateLazyBounds().

lazyub

SCIP_Real SCIP_Col::lazyub

lazy upper bound of the column; if the current upper bound is not smaller than the lazy upper bound, then the upper bound has not to be added to the LP

Definition at line 134 of file struct_lp.h.

Referenced by checkLazyBounds(), checkLazyColArray(), computeLPBounds(), SCIPlpAddCol(), and updateLazyBounds().

flushedobj

SCIP_Real SCIP_Col::flushedobj

objective value of column already flushed to the LP solver

Definition at line 136 of file struct_lp.h.

Referenced by lpFlushAddCols(), lpFlushChgCols(), and SCIPlpMarkFlushed().

flushedlb

SCIP_Real SCIP_Col::flushedlb

lower bound of column already flushed to the LP solver

Definition at line 137 of file struct_lp.h.

Referenced by lpFlushAddCols(), lpFlushChgCols(), SCIPlpMarkFlushed(), and updateLazyBounds().

flushedub

SCIP_Real SCIP_Col::flushedub

upper bound of column already flushed to the LP solver

Definition at line 138 of file struct_lp.h.

Referenced by lpFlushAddCols(), lpFlushChgCols(), SCIPlpMarkFlushed(), and updateLazyBounds().

primsol

SCIP_Real SCIP_Col::primsol

primal solution value in LP, is 0 if col is not in LP

Definition at line 139 of file struct_lp.h.

Referenced by analyzeStrongbranch(), checkLazyBounds(), colRestoreSolVals(), colStoreSolVals(), lpFlushAddCols(), markColDeleted(), rowEventSideChanged(), SCIPcolGetPrimsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPconflictAnalyzeLP(), SCIPconflictAnalyzeStrongbranch(), SCIPlpGetDualfarkas(), SCIPlpGetSol(), SCIPlpGetUnboundedSol(), SCIProwGetLPSolCutoffDistance(), SCIProwRecalcLPActivity(), and SCIPsolLinkLPSol().

redcost

SCIP_Real SCIP_Col::redcost

reduced cost value in LP, or SCIP_INVALID if not yet calculated

Definition at line 140 of file struct_lp.h.

Referenced by colRestoreSolVals(), colStoreSolVals(), lpFlushAddCols(), markColDeleted(), SCIPcolGetRedcost(), SCIPconflictAnalyzeLP(), SCIPlpGetDualfarkas(), SCIPlpGetSol(), and SCIPlpGetUnboundedSol().

farkascoef

SCIP_Real SCIP_Col::farkascoef

coefficient in dual Farkas infeasibility proof (== dualfarkas^T A_c)

Definition at line 141 of file struct_lp.h.

Referenced by lpFlushAddCols(), markColDeleted(), rowEventSideChanged(), and SCIPcolGetFarkasCoef().

minprimsol

SCIP_Real SCIP_Col::minprimsol

minimal LP solution value, this column ever assumed

Definition at line 142 of file struct_lp.h.

Referenced by SCIPcolGetMinPrimsol(), and SCIPlpGetSol().

maxprimsol

SCIP_Real SCIP_Col::maxprimsol

maximal LP solution value, this column ever assumed

Definition at line 143 of file struct_lp.h.

Referenced by SCIPcolGetMaxPrimsol(), and SCIPlpGetSol().

sbdown

SCIP_Real SCIP_Col::sbdown

strong branching information for downwards branching

Definition at line 144 of file struct_lp.h.

Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().

sbup

SCIP_Real SCIP_Col::sbup

strong branching information for upwards branching

Definition at line 145 of file struct_lp.h.

Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().

sbsolval

SCIP_Real SCIP_Col::sbsolval

LP solution value of column at last strong branching call

Definition at line 146 of file struct_lp.h.

Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().

sblpobjval

SCIP_Real SCIP_Col::sblpobjval

LP objective value at last strong branching call on the column

Definition at line 147 of file struct_lp.h.

Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().

sbnode

SCIP_Longint SCIP_Col::sbnode

node number of the last strong branching call on this column

Definition at line 148 of file struct_lp.h.

Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLPAge(), SCIPcolGetStrongbranchNode(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().

obsoletenode

SCIP_Longint SCIP_Col::obsoletenode

last node where this column was removed due to aging

Definition at line 149 of file struct_lp.h.

Referenced by lpRemoveObsoleteCols(), and SCIPcolMarkNotRemovableLocal().

storedsolvals

SCIP_COLSOLVALS* SCIP_Col::storedsolvals

values stored before entering diving or probing mode

Definition at line 150 of file struct_lp.h.

Referenced by colRestoreSolVals(), and colStoreSolVals().

var

SCIP_VAR* SCIP_Col::var

variable, this column represents; there cannot be a column without variable

Definition at line 151 of file struct_lp.h.

Referenced by branchcandCalcLPCands(), colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colChgCoefPos(), colDelCoefPos(), colLink(), colUnlink(), lpFlushAddCols(), lpFlushAddRows(), lpFlushChgCols(), rowAddCoef(), rowScale(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolDelCoef(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetVar(), SCIPcolInvalidateStrongbranchData(), SCIPcolIsIntegral(), SCIPcolPrint(), SCIPcolSetStrongbranchData(), SCIPlpAddCol(), SCIPlpAddRow(), SCIPlpEndDive(), SCIPlpGetPrimalRay(), SCIPlpGetUnboundedSol(), SCIPlpMarkFlushed(), SCIPlpShrinkCols(), SCIPlpStartDive(), SCIPlpSumRows(), SCIPlpWriteMip(), SCIPpricestoreAddProbVars(), SCIProwCalcIntegralScalar(), SCIProwCreate(), SCIProwDelCoef(), SCIProwGetLPSolCutoffDistance(), SCIProwGetNLPFeasibility(), SCIProwGetRelaxFeasibility(), SCIProwGetSolActivity(), SCIProwPrint(), SCIProwRecalcPseudoActivity(), and SCIPvarAddToRow().

rows

SCIP_ROW** SCIP_Col::rows

rows of column entries, that may have a nonzero dual solution value

Definition at line 152 of file struct_lp.h.

Referenced by colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colChgCoefPos(), colDelCoefPos(), colEnsureSize(), colLink(), colMoveCoef(), colSearchCoefPart(), colSortLP(), colSortNonLP(), colSwapCoefs(), colUnlink(), colUpdateAddLP(), colUpdateDelLP(), lpFlushAddCols(), provedBound(), rowAddCoef(), rowEventSideChanged(), rowLink(), rowMoveCoef(), rowScale(), rowSortLP(), rowSortNonLP(), rowSwapCoefs(), rowUnlink(), rowUpdateAddLP(), rowUpdateDelLP(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), SCIPcolChgCoef(), SCIPcolDelCoef(), SCIPcolGetRows(), SCIPcolIncCoef(), SCIPcolPrint(), SCIPlpAddCol(), SCIPlpShrinkCols(), SCIProwChgCoef(), SCIProwDelCoef(), and SCIProwIncCoef().

vals

SCIP_Real* SCIP_Col::vals

coefficients of column entries

Definition at line 153 of file struct_lp.h.

Referenced by colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colChgCoefPos(), colEnsureSize(), colLink(), colMoveCoef(), colSortLP(), colSortNonLP(), colSwapCoefs(), lpFlushAddCols(), provedBound(), rowEventSideChanged(), rowScale(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), SCIPcolChgCoef(), SCIPcolDelCoef(), SCIPcolGetVals(), SCIPcolIncCoef(), SCIPcolPrint(), SCIPlpAddCol(), SCIProwChgCoef(), SCIProwDelCoef(), and SCIProwIncCoef().

validredcostlp

SCIP_Longint SCIP_Col::validredcostlp

LP number for which reduced cost value is valid

Definition at line 154 of file struct_lp.h.

Referenced by colRestoreSolVals(), lpFlushAddCols(), markColDeleted(), SCIPcolGetRedcost(), SCIPlpGetDualfarkas(), SCIPlpGetSol(), and SCIPlpGetUnboundedSol().

validfarkaslp

SCIP_Longint SCIP_Col::validfarkaslp

LP number for which Farkas coefficient is valid

Definition at line 155 of file struct_lp.h.

Referenced by colRestoreSolVals(), lpFlushAddCols(), markColDeleted(), SCIPcolGetFarkasCoef(), and SCIPlpGetDualfarkas().

validsblp

SCIP_Longint SCIP_Col::validsblp

LP number for which strong branching values are valid

Definition at line 156 of file struct_lp.h.

Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLPAge(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().

linkpos

int* SCIP_Col::linkpos

position of col in col vector of the row, or -1 if not yet linked

Definition at line 157 of file struct_lp.h.

Referenced by colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colChgCoefPos(), colDelCoefPos(), colEnsureSize(), colLink(), colMoveCoef(), colSearchCoefPart(), colSortLP(), colSortNonLP(), colSwapCoefs(), colUnlink(), colUpdateAddLP(), colUpdateDelLP(), provedBound(), rowAddCoef(), rowEventSideChanged(), rowLink(), rowMoveCoef(), rowSortLP(), rowSortNonLP(), rowSwapCoefs(), rowUpdateAddLP(), rowUpdateDelLP(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), SCIPcolChgCoef(), SCIPcolDelCoef(), and SCIPcolIncCoef().

index

int SCIP_Col::index

consecutively numbered column identifier

Definition at line 158 of file struct_lp.h.

Referenced by rowAddCoef(), rowAddNorms(), rowCalcIdxsAndVals(), rowCalcNorms(), rowDelNorms(), rowMerge(), rowSearchCoefPart(), rowSwapCoefs(), SCIPcolChgCoef(), SCIPcolDelCoef(), SCIPcolGetIndex(), SCIPcolIncCoef(), SCIProwChgCoef(), SCIProwCreate(), SCIProwDelCoef(), SCIProwEnsureSize(), SCIProwGetDiscreteScalarProduct(), SCIProwGetScalarProduct(), SCIProwIncCoef(), and SCIProwSort().

size

int SCIP_Col::size

size of the row- and val-arrays

Definition at line 159 of file struct_lp.h.

Referenced by colEnsureSize().

len

int SCIP_Col::len

number of nonzeros in column

Definition at line 160 of file struct_lp.h.

Referenced by colAddCoef(), colDelCoefPos(), colEnsureSize(), colSearchCoef(), colSortNonLP(), colUnlink(), colUpdateAddLP(), colUpdateDelLP(), lpFlushAddCols(), rowEventSideChanged(), SCIPcolGetNNonz(), SCIPcolPrint(), SCIPlpAddCol(), SCIPlpShrinkCols(), and SCIPpricestoreAddProbVars().

nlprows

int SCIP_Col::nlprows

number of linked rows in column, that belong to the current LP

Definition at line 161 of file struct_lp.h.

Referenced by colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colDelCoefPos(), colLink(), colSearchCoef(), colSortLP(), colSortNonLP(), lpFlushAddCols(), provedBound(), rowAddCoef(), rowEventSideChanged(), rowUpdateAddLP(), rowUpdateDelLP(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), and SCIPcolGetNLPNonz().

nunlinked

int SCIP_Col::nunlinked

number of column entries, where the rows don't know about the column

Definition at line 162 of file struct_lp.h.

Referenced by colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colDelCoefPos(), colLink(), colSearchCoef(), colUnlink(), provedBound(), rowAddCoef(), rowEventSideChanged(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), and SCIPcolGetNLPNonz().

lppos

int SCIP_Col::lppos

column position number in current LP, or -1 if not in current LP

Definition at line 163 of file struct_lp.h.

Referenced by branchcandCalcLPCands(), colAddCoef(), colUpdateAddLP(), colUpdateDelLP(), computeRelIntPoint(), lpDelColset(), lpFlushAddCols(), rowAddCoef(), rowAddNorms(), rowCalcActivityBounds(), rowCalcNorms(), rowDelCoefPos(), rowDelNorms(), rowEventSideChanged(), rowMoveCoef(), rowSearchCoef(), rowSearchCoefPart(), rowSwapCoefs(), SCIPcolGetBasisStatus(), SCIPcolGetLPDepth(), SCIPcolGetLPPos(), SCIPcolGetPrimsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolInvalidateStrongbranchData(), SCIPcolIsInLP(), SCIPcolSetStrongbranchData(), SCIPlpAddCol(), SCIPlpGetUnboundedSol(), SCIPlpShrinkCols(), SCIPlpWriteMip(), SCIPpricestoreAddProbVars(), SCIPpricestoreApplyVars(), SCIProwGetDiscreteScalarProduct(), SCIProwGetLPSolCutoffDistance(), SCIProwGetNLPFeasibility(), SCIProwGetParallelism(), SCIProwGetRelaxFeasibility(), SCIProwGetScalarProduct(), SCIProwGetSolActivity(), SCIProwRecalcLPActivity(), SCIProwRecalcPseudoActivity(), and SCIPvarLoose().

lpipos

int SCIP_Col::lpipos

column position number in LP solver, or -1 if not in LP solver

Definition at line 164 of file struct_lp.h.

Referenced by branchcandCalcLPCands(), coefChanged(), lpDelColset(), lpFlushAddCols(), lpFlushAddRows(), lpFlushChgCols(), lpFlushDelCols(), markColDeleted(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), SCIPconflictAnalyzeStrongbranch(), SCIPlpMarkFlushed(), SCIPpricestoreAddProbVars(), and SCIPvarLoose().

lpdepth

int SCIP_Col::lpdepth

depth level at which column entered the LP, or -1 if not in current LP

Definition at line 165 of file struct_lp.h.

Referenced by lpDelColset(), SCIPcolGetLPDepth(), SCIPcolGetLPPos(), SCIPcolIsInLP(), SCIPlpAddCol(), and SCIPlpShrinkCols().

sbitlim

int SCIP_Col::sbitlim

strong branching iteration limit used to get strong branching values, or -1

Definition at line 166 of file struct_lp.h.

Referenced by lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().

nsbcalls

int SCIP_Col::nsbcalls

number of times, strong branching was applied on the column

Definition at line 167 of file struct_lp.h.

Referenced by SCIPcolGetNStrongbranchs(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), and SCIPcolSetStrongbranchData().

age

int SCIP_Col::age

number of successive times this variable was in LP and was 0.0 in solution

Definition at line 168 of file struct_lp.h.

Referenced by lpRemoveObsoleteCols(), SCIPcolGetAge(), SCIPlpAddCol(), and SCIPlpUpdateAges().

var_probindex

int SCIP_Col::var_probindex

copy of var->probindex for avoiding expensive dereferencing

Definition at line 169 of file struct_lp.h.

Referenced by addOrigRow(), rowAddCoef(), SCIPlpSumRows(), transformNonIntegralRow(), varSetProbindex(), varVecAddScaledRowCoefs(), and varVecAddScaledRowCoefsQuad().

basisstatus

unsigned int SCIP_Col::basisstatus

basis status of column in last LP solution, invalid for non-LP columns

Definition at line 170 of file struct_lp.h.

Referenced by colRestoreSolVals(), colStoreSolVals(), lpRemoveObsoleteCols(), markColDeleted(), SCIPcolGetBasisStatus(), SCIPconflictAnalyzeLP(), and SCIPlpGetSol().

lprowssorted

unsigned int SCIP_Col::lprowssorted

are the linked LP rows in the rows array sorted by non-decreasing index?

Definition at line 171 of file struct_lp.h.

Referenced by colAddCoef(), colMoveCoef(), colSearchCoef(), colSortLP(), colSwapCoefs(), rowAddCoef(), and rowUpdateAddLP().

nonlprowssorted

unsigned int SCIP_Col::nonlprowssorted

are the non-LP/not linked rows sorted by non-decreasing index?

Definition at line 172 of file struct_lp.h.

Referenced by colAddCoef(), colMoveCoef(), colSearchCoef(), colSortNonLP(), colSwapCoefs(), and rowUpdateDelLP().

objchanged

unsigned int SCIP_Col::objchanged

has objective value changed, and has data of LP solver to be updated?

Definition at line 173 of file struct_lp.h.

Referenced by insertColChgcols(), lpFlushAddCols(), lpFlushChgCols(), SCIPcolChgObj(), and SCIPlpMarkFlushed().

lbchanged

unsigned int SCIP_Col::lbchanged

has lower bound changed, and has data of LP solver to be updated?

Definition at line 174 of file struct_lp.h.

Referenced by insertColChgcols(), lpFlushAddCols(), lpFlushChgCols(), SCIPcolChgLb(), SCIPlpMarkFlushed(), and updateLazyBounds().

ubchanged

unsigned int SCIP_Col::ubchanged

has upper bound changed, and has data of LP solver to be updated?

Definition at line 175 of file struct_lp.h.

Referenced by insertColChgcols(), lpFlushAddCols(), lpFlushChgCols(), SCIPcolChgUb(), SCIPlpMarkFlushed(), and updateLazyBounds().

coefchanged

unsigned int SCIP_Col::coefchanged

has the coefficient vector changed, and has LP solver to be updated?

Definition at line 176 of file struct_lp.h.

Referenced by coefChanged(), lpFlushAddCols(), lpFlushDelCols(), and SCIPlpMarkFlushed().

integral

unsigned int SCIP_Col::integral

is associated variable of integral type?

Definition at line 177 of file struct_lp.h.

Referenced by SCIPcolIsIntegral(), and SCIPlpAddCol().

removable

unsigned int SCIP_Col::removable

is column removable from the LP (due to aging or cleanup)?

Definition at line 178 of file struct_lp.h.

Referenced by lpDelColset(), SCIPcolIsRemovable(), SCIPlpAddCol(), and SCIPlpShrinkCols().

sbdownvalid

unsigned int SCIP_Col::sbdownvalid

stores whether the stored strong branching down value is a valid dual bound; otherwise, it can only be used as an estimate value

Definition at line 179 of file struct_lp.h.

Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().

sbupvalid

unsigned int SCIP_Col::sbupvalid

stores whether the stored strong branching up value is a valid dual bound; otherwise, it can only be used as an estimate value

Definition at line 181 of file struct_lp.h.

Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().