SCIP
Solving Constraint Integer Programs
Solving Constraint Integer Programs
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 124 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 |
| SCIP_Real SCIP_Col::obj |
current objective value of column in LP (might be changed in diving or probing)
Definition at line 126 of file struct_lp.h.
Referenced by colCalcInternalRedcost(), lpFlushAddCols(), lpFlushChgCols(), provedBound(), SCIPcolCalcRedcost(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolGetBestBound(), SCIPcolGetObj(), SCIPcolPrint(), SCIPlpAddCol(), SCIPlpComputeRelIntPoint(), SCIPlpEndDive(), SCIPlpGetSol(), SCIPlpGetUnboundedSol(), SCIPlpMarkFlushed(), SCIPlpStartDive(), and SCIPlpWriteMip().
| SCIP_Real SCIP_Col::lb |
current lower bound of column in LP
Definition at line 127 of file struct_lp.h.
Referenced by analyzeStrongbranch(), branchcandCalcLPCands(), computeLPBounds(), provedBound(), rowCalcActivityBounds(), rowScale(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolGetBestBound(), SCIPcolGetFarkasValue(), SCIPcolGetFeasibility(), SCIPcolGetLb(), SCIPcolPrint(), SCIPconflictAnalyzeStrongbranch(), SCIPlpAddCol(), SCIPlpComputeRelIntPoint(), SCIPlpEndDive(), SCIPlpGetSol(), SCIPlpMarkFlushed(), SCIPlpStartDive(), SCIPlpWriteMip(), SCIProwGetSolActivity(), and updateLazyBounds().
| SCIP_Real SCIP_Col::ub |
current upper bound of column in LP
Definition at line 128 of file struct_lp.h.
Referenced by analyzeStrongbranch(), branchcandCalcLPCands(), computeLPBounds(), provedBound(), rowCalcActivityBounds(), rowScale(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolGetBestBound(), SCIPcolGetFarkasValue(), SCIPcolGetFeasibility(), SCIPcolGetUb(), SCIPcolPrint(), SCIPconflictAnalyzeStrongbranch(), SCIPlpAddCol(), SCIPlpComputeRelIntPoint(), SCIPlpEndDive(), SCIPlpMarkFlushed(), SCIPlpStartDive(), SCIPlpWriteMip(), SCIProwGetSolActivity(), and updateLazyBounds().
| SCIP_Real SCIP_Col::unchangedobj |
unchanged objective value of column (ignoring diving or probing changes)
Definition at line 129 of file struct_lp.h.
Referenced by lpDelColset(), rowAddNorms(), rowDelNorms(), SCIPcolChgObj(), SCIPlpAddCol(), and SCIPlpShrinkCols().
| 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 130 of file struct_lp.h.
Referenced by checkLazyBounds(), checkLazyColArray(), computeLPBounds(), SCIPlpAddCol(), and updateLazyBounds().
| 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 132 of file struct_lp.h.
Referenced by checkLazyBounds(), checkLazyColArray(), computeLPBounds(), SCIPlpAddCol(), and updateLazyBounds().
| SCIP_Real SCIP_Col::flushedobj |
objective value of column already flushed to the LP solver
Definition at line 134 of file struct_lp.h.
Referenced by lpFlushAddCols(), lpFlushChgCols(), and SCIPlpMarkFlushed().
| SCIP_Real SCIP_Col::flushedlb |
lower bound of column already flushed to the LP solver
Definition at line 135 of file struct_lp.h.
Referenced by lpFlushAddCols(), lpFlushChgCols(), SCIPlpMarkFlushed(), and updateLazyBounds().
| SCIP_Real SCIP_Col::flushedub |
upper bound of column already flushed to the LP solver
Definition at line 136 of file struct_lp.h.
Referenced by lpFlushAddCols(), lpFlushChgCols(), SCIPlpMarkFlushed(), and updateLazyBounds().
| SCIP_Real SCIP_Col::primsol |
primal solution value in LP, is 0 if col is not in LP
Definition at line 137 of file struct_lp.h.
Referenced by analyzeStrongbranch(), checkLazyBounds(), colRestoreSolVals(), colStoreSolVals(), lpFlushAddCols(), markColDeleted(), rowEventSideChanged(), SCIPcolGetPrimsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPconflictAnalyzeLP(), SCIPconflictAnalyzeStrongbranch(), SCIPlpGetDualfarkas(), SCIPlpGetSol(), SCIPlpGetUnboundedSol(), SCIProwRecalcLPActivity(), and SCIPsolLinkLPSol().
| SCIP_Real SCIP_Col::redcost |
reduced cost value in LP, or SCIP_INVALID if not yet calculated
Definition at line 138 of file struct_lp.h.
Referenced by colRestoreSolVals(), colStoreSolVals(), lpFlushAddCols(), markColDeleted(), SCIPcolGetRedcost(), SCIPconflictAnalyzeLP(), SCIPlpGetDualfarkas(), SCIPlpGetSol(), and SCIPlpGetUnboundedSol().
| SCIP_Real SCIP_Col::farkascoef |
coefficient in dual Farkas infeasibility proof (== dualfarkas^T A_c)
Definition at line 139 of file struct_lp.h.
Referenced by lpFlushAddCols(), markColDeleted(), rowEventSideChanged(), and SCIPcolGetFarkasCoef().
| SCIP_Real SCIP_Col::minprimsol |
minimal LP solution value, this column ever assumed
Definition at line 140 of file struct_lp.h.
Referenced by SCIPcolGetMinPrimsol(), and SCIPlpGetSol().
| SCIP_Real SCIP_Col::maxprimsol |
maximal LP solution value, this column ever assumed
Definition at line 141 of file struct_lp.h.
Referenced by SCIPcolGetMaxPrimsol(), and SCIPlpGetSol().
| SCIP_Real SCIP_Col::sbdown |
strong branching information for downwards branching
Definition at line 142 of file struct_lp.h.
Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().
| SCIP_Real SCIP_Col::sbup |
strong branching information for upwards branching
Definition at line 143 of file struct_lp.h.
Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().
| SCIP_Real SCIP_Col::sbsolval |
LP solution value of column at last strong branching call
Definition at line 144 of file struct_lp.h.
Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().
| SCIP_Real SCIP_Col::sblpobjval |
LP objective value at last strong branching call on the column
Definition at line 145 of file struct_lp.h.
Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().
| SCIP_Longint SCIP_Col::sbnode |
node number of the last strong branching call on this column
Definition at line 146 of file struct_lp.h.
Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLPAge(), SCIPcolGetStrongbranchNode(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().
| SCIP_Longint SCIP_Col::obsoletenode |
last node where this column was removed due to aging
Definition at line 147 of file struct_lp.h.
Referenced by lpRemoveObsoleteCols(), and SCIPcolMarkNotRemovableLocal().
| SCIP_COLSOLVALS* SCIP_Col::storedsolvals |
values stored before entering diving or probing mode
Definition at line 148 of file struct_lp.h.
Referenced by colRestoreSolVals(), and colStoreSolVals().
| SCIP_VAR* SCIP_Col::var |
variable, this column represents; there cannot be a column without variable
Definition at line 149 of file struct_lp.h.
Referenced by addRowToAggregation(), branchcandCalcLPCands(), colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colChgCoefPos(), colDelCoefPos(), colLink(), colUnlink(), cutsSubstituteMIRRow(), cutsSubstituteStrongCGRow(), lpFlushAddCols(), lpFlushAddRows(), lpFlushChgCols(), rowAddCoef(), rowScale(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), SCIPcolChgLb(), SCIPcolChgObj(), SCIPcolChgUb(), SCIPcolDelCoef(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetVar(), SCIPcolInvalidateStrongbranchData(), SCIPcolIsIntegral(), SCIPcolPrint(), SCIPcolSetStrongbranchData(), SCIPlpAddCol(), SCIPlpAddRow(), SCIPlpEndDive(), SCIPlpGetPrimalRay(), SCIPlpMarkFlushed(), SCIPlpShrinkCols(), SCIPlpStartDive(), SCIPlpSumRows(), SCIPlpWriteMip(), SCIPpricestoreAddProbVars(), SCIProwCalcIntegralScalar(), SCIProwCreate(), SCIProwDelCoef(), SCIProwGetNLPFeasibility(), SCIProwGetRelaxFeasibility(), SCIProwGetSolActivity(), SCIProwPrint(), SCIProwRecalcPseudoActivity(), and SCIPvarAddToRow().
| SCIP_ROW** SCIP_Col::rows |
rows of column entries, that may have a nonzero dual solution value
Definition at line 150 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().
| SCIP_Real* SCIP_Col::vals |
coefficients of column entries
Definition at line 151 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().
| SCIP_Longint SCIP_Col::validredcostlp |
LP number for which reduced cost value is valid
Definition at line 152 of file struct_lp.h.
Referenced by colRestoreSolVals(), lpFlushAddCols(), markColDeleted(), SCIPcolGetRedcost(), SCIPlpGetDualfarkas(), SCIPlpGetSol(), and SCIPlpGetUnboundedSol().
| SCIP_Longint SCIP_Col::validfarkaslp |
LP number for which Farkas coefficient is valid
Definition at line 153 of file struct_lp.h.
Referenced by colRestoreSolVals(), lpFlushAddCols(), markColDeleted(), SCIPcolGetFarkasCoef(), and SCIPlpGetDualfarkas().
| SCIP_Longint SCIP_Col::validsblp |
LP number for which strong branching values are valid
Definition at line 154 of file struct_lp.h.
Referenced by SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLPAge(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().
| int* SCIP_Col::linkpos |
position of col in col vector of the row, or -1 if not yet linked
Definition at line 155 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().
| int SCIP_Col::index |
consecutively numbered column identifier
Definition at line 156 of file struct_lp.h.
Referenced by rowAddCoef(), rowAddNorms(), rowCalcIdxsAndVals(), rowCalcNorms(), rowDelNorms(), rowMerge(), rowSearchCoefPart(), rowSwapCoefs(), SCIP_DECL_HASHKEYEQ(), SCIPcolChgCoef(), SCIPcolDelCoef(), SCIPcolGetIndex(), SCIPcolIncCoef(), SCIProwChgCoef(), SCIProwCreate(), SCIProwDelCoef(), SCIProwEnsureSize(), SCIProwGetDiscreteScalarProduct(), SCIProwGetScalarProduct(), SCIProwIncCoef(), and SCIProwSort().
| int SCIP_Col::size |
size of the row- and val-arrays
Definition at line 157 of file struct_lp.h.
Referenced by colEnsureSize().
| int SCIP_Col::len |
number of nonzeros in column
Definition at line 158 of file struct_lp.h.
Referenced by colAddCoef(), colDelCoefPos(), colEnsureSize(), colSearchCoef(), colSortNonLP(), colUnlink(), colUpdateAddLP(), colUpdateDelLP(), lpFlushAddCols(), rowEventSideChanged(), SCIPcolGetNNonz(), SCIPcolPrint(), SCIPlpAddCol(), SCIPlpShrinkCols(), and SCIPpricestoreAddProbVars().
| int SCIP_Col::nlprows |
number of linked rows in column, that belong to the current LP
Definition at line 159 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().
| int SCIP_Col::nunlinked |
number of column entries, where the rows don't know about the column
Definition at line 160 of file struct_lp.h.
Referenced by colAddCoef(), colCalcInternalFarkasCoef(), colCalcInternalRedcost(), colDelCoefPos(), colLink(), colSearchCoef(), colUnlink(), provedBound(), rowAddCoef(), rowEventSideChanged(), SCIPcolCalcFarkasCoef(), SCIPcolCalcRedcost(), and SCIPcolGetNLPNonz().
| int SCIP_Col::lppos |
column position number in current LP, or -1 if not in current LP
Definition at line 161 of file struct_lp.h.
Referenced by branchcandCalcLPCands(), colAddCoef(), colUpdateAddLP(), colUpdateDelLP(), lpDelColset(), lpFlushAddCols(), rowAddCoef(), rowAddNorms(), rowCalcActivityBounds(), rowCalcNorms(), rowDelCoefPos(), rowDelNorms(), rowEventSideChanged(), rowMoveCoef(), rowSearchCoef(), rowSearchCoefPart(), rowSwapCoefs(), SCIPcolGetBasisStatus(), SCIPcolGetLPDepth(), SCIPcolGetLPPos(), SCIPcolGetPrimsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolInvalidateStrongbranchData(), SCIPcolIsInLP(), SCIPcolSetStrongbranchData(), SCIPlpAddCol(), SCIPlpComputeRelIntPoint(), SCIPlpShrinkCols(), SCIPlpWriteMip(), SCIPpricestoreAddProbVars(), SCIPpricestoreApplyVars(), SCIProwGetDiscreteScalarProduct(), SCIProwGetNLPFeasibility(), SCIProwGetParallelism(), SCIProwGetRelaxFeasibility(), SCIProwGetScalarProduct(), SCIProwGetSolActivity(), SCIProwRecalcLPActivity(), SCIProwRecalcPseudoActivity(), and SCIPvarLoose().
| int SCIP_Col::lpipos |
column position number in LP solver, or -1 if not in LP solver
Definition at line 162 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().
| int SCIP_Col::lpdepth |
depth level at which column entered the LP, or -1 if not in current LP
Definition at line 163 of file struct_lp.h.
Referenced by lpDelColset(), SCIPcolGetLPDepth(), SCIPcolGetLPPos(), SCIPcolIsInLP(), SCIPlpAddCol(), and SCIPlpShrinkCols().
| int SCIP_Col::sbitlim |
strong branching iteration limit used to get strong branching values, or -1
Definition at line 164 of file struct_lp.h.
Referenced by lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolInvalidateStrongbranchData(), and SCIPcolSetStrongbranchData().
| int SCIP_Col::nsbcalls |
number of times, strong branching was applied on the column
Definition at line 165 of file struct_lp.h.
Referenced by SCIPcolGetNStrongbranchs(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), and SCIPcolSetStrongbranchData().
| int SCIP_Col::age |
number of successive times this variable was in LP and was 0.0 in solution
Definition at line 166 of file struct_lp.h.
Referenced by lpRemoveObsoleteCols(), SCIPlpAddCol(), and SCIPlpUpdateAges().
| int SCIP_Col::var_probindex |
copy of var->probindex for avoiding expensive dereferencing
Definition at line 167 of file struct_lp.h.
Referenced by addRowToAggregation(), cutsSubstituteMIRRow(), cutsSubstituteStrongCGRow(), rowAddCoef(), SCIPlpSumRows(), and varSetProbindex().
| unsigned int SCIP_Col::basisstatus |
basis status of column in last LP solution, invalid for non-LP columns
Definition at line 168 of file struct_lp.h.
Referenced by colRestoreSolVals(), colStoreSolVals(), lpRemoveObsoleteCols(), markColDeleted(), SCIPcolGetBasisStatus(), SCIPconflictAnalyzeLP(), and SCIPlpGetSol().
| unsigned int SCIP_Col::lprowssorted |
are the linked LP rows in the rows array sorted by non-decreasing index?
Definition at line 169 of file struct_lp.h.
Referenced by colAddCoef(), colMoveCoef(), colSearchCoef(), colSortLP(), colSwapCoefs(), rowAddCoef(), and rowUpdateAddLP().
| unsigned int SCIP_Col::nonlprowssorted |
are the non-LP/not linked rows sorted by non-decreasing index?
Definition at line 170 of file struct_lp.h.
Referenced by colAddCoef(), colMoveCoef(), colSearchCoef(), colSortNonLP(), colSwapCoefs(), and rowUpdateDelLP().
| unsigned int SCIP_Col::objchanged |
has objective value changed, and has data of LP solver to be updated?
Definition at line 171 of file struct_lp.h.
Referenced by insertColChgcols(), lpFlushAddCols(), lpFlushChgCols(), SCIPcolChgObj(), and SCIPlpMarkFlushed().
| unsigned int SCIP_Col::lbchanged |
has lower bound changed, and has data of LP solver to be updated?
Definition at line 172 of file struct_lp.h.
Referenced by insertColChgcols(), lpFlushAddCols(), lpFlushChgCols(), SCIPcolChgLb(), SCIPlpMarkFlushed(), and updateLazyBounds().
| unsigned int SCIP_Col::ubchanged |
has upper bound changed, and has data of LP solver to be updated?
Definition at line 173 of file struct_lp.h.
Referenced by insertColChgcols(), lpFlushAddCols(), lpFlushChgCols(), SCIPcolChgUb(), SCIPlpMarkFlushed(), and updateLazyBounds().
| unsigned int SCIP_Col::coefchanged |
has the coefficient vector changed, and has LP solver to be updated?
Definition at line 174 of file struct_lp.h.
Referenced by coefChanged(), lpFlushAddCols(), lpFlushDelCols(), and SCIPlpMarkFlushed().
| unsigned int SCIP_Col::integral |
is associated variable of integral type?
Definition at line 175 of file struct_lp.h.
Referenced by SCIPcolIsIntegral(), and SCIPlpAddCol().
| unsigned int SCIP_Col::removable |
is column removable from the LP (due to aging or cleanup)?
Definition at line 176 of file struct_lp.h.
Referenced by lpDelColset(), SCIPcolIsRemovable(), SCIPlpAddCol(), and SCIPlpShrinkCols().
| 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 177 of file struct_lp.h.
Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().
| 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 179 of file struct_lp.h.
Referenced by analyzeStrongbranch(), lpFlushAddCols(), markColDeleted(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcolGetStrongbranchLast(), SCIPcolInvalidateStrongbranchData(), SCIPcolSetStrongbranchData(), and SCIPconflictAnalyzeStrongbranch().