Detailed Description
public methods for matrix
Definition in file pub_matrix.h.
#include "scip/def.h"
#include "scip/type_var.h"
#include "scip/type_cons.h"
#include "scip/type_matrix.h"
Go to the source code of this file.
Function Documentation
◆ SCIPmatrixGetColValPtr()
SCIP_EXPORT SCIP_Real* SCIPmatrixGetColValPtr | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get column based start pointer of values
- Parameters
-
matrix matrix instance col column index
Definition at line 1528 of file matrix.c.
References SCIP_Matrix::colmatbeg, SCIP_Matrix::colmatval, and NULL.
Referenced by calcMaxColActivity(), calcMinColActivity(), cancelCol(), dualBoundStrengthening(), findDominancePairs(), getDownlockRowIdx(), getImpliedBounds(), getMinColActWithoutRow(), getUplockRowIdx(), infinityCountUpdate(), and SCIP_DECL_PRESOLEXEC().
◆ SCIPmatrixGetColIdxPtr()
SCIP_EXPORT int* SCIPmatrixGetColIdxPtr | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get column based start pointer of row indices
- Parameters
-
matrix matrix instance col column index
Definition at line 1540 of file matrix.c.
References SCIP_Matrix::colmatbeg, SCIP_Matrix::colmatind, and NULL.
Referenced by calcMaxColActivity(), calcMinColActivity(), cancelCol(), dualBoundStrengthening(), findDominancePairs(), findFixings(), findVarAggrRedVbcons(), getDownlockRowIdx(), getImpliedBounds(), getMinColActWithoutRow(), getUplockRowIdx(), infinityCountUpdate(), SCIP_DECL_PRESOLEXEC(), and singletonColumnStuffing().
◆ SCIPmatrixGetColNNonzs()
SCIP_EXPORT int SCIPmatrixGetColNNonzs | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get the number of non-zero entries of this column
- Parameters
-
matrix matrix instance col column index
Definition at line 1552 of file matrix.c.
References SCIP_Matrix::colmatcnt, and NULL.
Referenced by calcMaxColActivity(), calcMinColActivity(), cancelCol(), compensateVarLock(), dualBoundStrengthening(), findDominancePairs(), findFixings(), findVarAggrRedVbcons(), getDownlockRowIdx(), getImpliedBounds(), getMinColActWithoutRow(), getUplockRowIdx(), infinityCountUpdate(), SCIP_DECL_PRESOLEXEC(), and singletonColumnStuffing().
◆ SCIPmatrixGetNColumns()
SCIP_EXPORT int SCIPmatrixGetNColumns | ( | SCIP_MATRIX * | matrix | ) |
get number of columns of the matrix
- Parameters
-
matrix matrix instance
Definition at line 1564 of file matrix.c.
References SCIP_Matrix::ncols, and NULL.
Referenced by applyLPboundTightening(), calcVarBoundsDominated(), calcVarBoundsDominating(), cancelCol(), compensateVarLock(), detectParallelCols(), dualBoundStrengthening(), findDownlockAggregations(), findUplockAggregations(), findVarAggrRedVbcons(), infinityCountUpdate(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), and singletonColumnStuffing().
◆ SCIPmatrixGetColUb()
SCIP_EXPORT SCIP_Real SCIPmatrixGetColUb | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get upper bound of column
- Parameters
-
matrix matrix instance col column index
Definition at line 1574 of file matrix.c.
References NULL, and SCIP_Matrix::ub.
Referenced by findDownlockAggregations(), findUplockAggregations(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getImpliedBounds(), getMaxActivitySingleRowWithoutCol(), getMinActivitySingleRowWithoutCol(), getMinMaxActivityResiduals(), and SCIP_DECL_PRESOLEXEC().
◆ SCIPmatrixGetColLb()
SCIP_EXPORT SCIP_Real SCIPmatrixGetColLb | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get lower bound of column
- Parameters
-
matrix matrix instance col column index
Definition at line 1585 of file matrix.c.
References SCIP_Matrix::lb, and NULL.
Referenced by findDownlockAggregations(), findUplockAggregations(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getImpliedBounds(), getMaxActivitySingleRowWithoutCol(), getMinActivitySingleRowWithoutCol(), getMinMaxActivityResiduals(), and SCIP_DECL_PRESOLEXEC().
◆ SCIPmatrixGetColNUplocks()
SCIP_EXPORT int SCIPmatrixGetColNUplocks | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get number of uplocks of column
- Parameters
-
matrix matrix instance col column index
Definition at line 1596 of file matrix.c.
References NULL, and SCIP_Matrix::nuplocks.
Referenced by cancelCol(), cancelRow(), compensateVarLock(), detectDominatingVlbs(), detectDominatingVubs(), findUplockAggregations(), getUplockRowIdx(), SCIP_DECL_PRESOLEXEC(), and singletonColumnStuffing().
◆ SCIPmatrixGetColNDownlocks()
SCIP_EXPORT int SCIPmatrixGetColNDownlocks | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get number of downlocks of column
- Parameters
-
matrix matrix instance col column index
Definition at line 1608 of file matrix.c.
References SCIP_Matrix::ndownlocks, and NULL.
Referenced by cancelCol(), cancelRow(), compensateVarLock(), detectDominatingVlbs(), detectDominatingVubs(), findDownlockAggregations(), getDownlockRowIdx(), SCIP_DECL_PRESOLEXEC(), and singletonColumnStuffing().
◆ SCIPmatrixGetVar()
SCIP_EXPORT SCIP_VAR* SCIPmatrixGetVar | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get variable pointer of column
- Parameters
-
matrix matrix instance col column index
Definition at line 1620 of file matrix.c.
References NULL, and SCIP_Matrix::vars.
Referenced by calcVarBoundsDominated(), calcVarBoundsDominating(), cancelRow(), compensateVarLock(), detectDominatingVlbs(), detectDominatingVubs(), dualBoundStrengthening(), findDominancePairs(), findDownlockAggregations(), findUplockAggregations(), findVarAggrRedVbcons(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), infinityCountUpdate(), isVlb(), isVub(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), singletonColumnStuffing(), and transformAndSolve().
◆ SCIPmatrixGetColName()
SCIP_EXPORT const char* SCIPmatrixGetColName | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get name of column/variable
- Parameters
-
matrix matrix instance col column index
Definition at line 1632 of file matrix.c.
References NULL, SCIPvarGetName(), and SCIP_Matrix::vars.
Referenced by transformAndSolve().
◆ SCIPmatrixGetRowValPtr()
SCIP_EXPORT SCIP_Real* SCIPmatrixGetRowValPtr | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get row based start pointer of values
- Parameters
-
matrix matrix instance row row index
Definition at line 1644 of file matrix.c.
References NULL, SCIP_Matrix::rowmatbeg, and SCIP_Matrix::rowmatval.
Referenced by applyLPboundTightening(), cancelRow(), compensateVarLock(), detectParallelCols(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getMaxActivitySingleRowWithoutCol(), getMinActivitySingleRowWithoutCol(), getMinMaxActivityResiduals(), infinityCountUpdate(), isVlb(), isVub(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), singletonColumnStuffing(), and transformAndSolve().
◆ SCIPmatrixGetRowIdxPtr()
SCIP_EXPORT int* SCIPmatrixGetRowIdxPtr | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get row based start pointer of column indices
- Parameters
-
matrix matrix instance row row index
Definition at line 1656 of file matrix.c.
References NULL, SCIP_Matrix::rowmatbeg, and SCIP_Matrix::rowmatind.
Referenced by applyLPboundTightening(), cancelRow(), compensateVarLock(), detectParallelCols(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getMaxActivitySingleRowWithoutCol(), getMinActivitySingleRowWithoutCol(), getMinMaxActivityResiduals(), infinityCountUpdate(), isVlb(), isVub(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), singletonColumnStuffing(), and transformAndSolve().
◆ SCIPmatrixGetRowNNonzs()
SCIP_EXPORT int SCIPmatrixGetRowNNonzs | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get number of non-zeros of this row
- Parameters
-
matrix matrix instance row row index
Definition at line 1668 of file matrix.c.
References NULL, and SCIP_Matrix::rowmatcnt.
Referenced by applyLPboundTightening(), cancelCol(), cancelRow(), compensateVarLock(), detectParallelCols(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getMaxActivitySingleRowWithoutCol(), getMinActivitySingleRowWithoutCol(), getMinMaxActivityResiduals(), infinityCountUpdate(), isVlb(), isVub(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), singletonColumnStuffing(), and transformAndSolve().
◆ SCIPmatrixGetRowName()
SCIP_EXPORT const char* SCIPmatrixGetRowName | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get name of row
- Parameters
-
matrix matrix instance row row index
Definition at line 1680 of file matrix.c.
References SCIP_Matrix::cons, NULL, and SCIPconsGetName().
Referenced by applyLPboundTightening(), and cancelRow().
◆ SCIPmatrixGetNRows()
SCIP_EXPORT int SCIPmatrixGetNRows | ( | SCIP_MATRIX * | matrix | ) |
get number of rows of the matrix
- Parameters
-
matrix matrix instance
Definition at line 1692 of file matrix.c.
References SCIP_Matrix::nrows, and NULL.
Referenced by calcVarBoundsDominated(), calcVarBoundsDominating(), compensateVarLock(), detectParallelCols(), dualBoundStrengthening(), findVarAggrRedVbcons(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), infinityCountUpdate(), isVlb(), isVub(), processHashlists(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), and singletonColumnStuffing().
◆ SCIPmatrixGetRowLhs()
SCIP_EXPORT SCIP_Real SCIPmatrixGetRowLhs | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get left-hand-side of row
- Parameters
-
matrix matrix instance row row index
Definition at line 1702 of file matrix.c.
References SCIP_Matrix::lhs, and NULL.
Referenced by calcVarBoundsDominated(), calcVarBoundsDominating(), cancelCol(), cancelRow(), compensateVarLock(), dualBoundStrengthening(), findDominancePairs(), findFixings(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getVarBoundsOfRow(), isVlb(), isVub(), processHashlists(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), singletonColumnStuffing(), and transformAndSolve().
◆ SCIPmatrixGetRowRhs()
SCIP_EXPORT SCIP_Real SCIPmatrixGetRowRhs | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get right-hand-side of row
- Parameters
-
matrix matrix instance row row index
Definition at line 1714 of file matrix.c.
References NULL, and SCIP_Matrix::rhs.
Referenced by calcVarBoundsDominated(), calcVarBoundsDominating(), cancelCol(), cancelRow(), compensateVarLock(), dualBoundStrengthening(), findDominancePairs(), findFixings(), getVarBoundsOfRow(), processHashlists(), SCIP_DECL_PRESOLEXEC(), SCIPincludePresolMILP(), and transformAndSolve().
◆ SCIPmatrixIsRowRhsInfinity()
SCIP_EXPORT SCIP_Bool SCIPmatrixIsRowRhsInfinity | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
flag indicating if right-hand-side of row is infinity
- Parameters
-
matrix matrix instance row row index
Definition at line 1726 of file matrix.c.
References SCIP_Matrix::isrhsinfinite, and NULL.
Referenced by calcVarBoundsDominated(), calcVarBoundsDominating(), detectParallelCols(), dualBoundStrengthening(), findDominancePairs(), getDownlockRowIdx(), getUplockRowIdx(), infinityCountUpdate(), isVlb(), isVub(), SCIP_DECL_PRESOLEXEC(), and singletonColumnStuffing().
◆ SCIPmatrixGetNNonzs()
SCIP_EXPORT int SCIPmatrixGetNNonzs | ( | SCIP_MATRIX * | matrix | ) |
get number of non-zeros of matrix
- Parameters
-
matrix matrix instance
Definition at line 1738 of file matrix.c.
References SCIP_Matrix::nnonzs, and NULL.
Referenced by SCIP_DECL_PRESOLEXEC(), and SCIPincludePresolMILP().
◆ SCIPmatrixGetRowMinActivity()
SCIP_EXPORT SCIP_Real SCIPmatrixGetRowMinActivity | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get minimal activity of row
- Parameters
-
matrix matrix instance row row index
Definition at line 1748 of file matrix.c.
References SCIP_Matrix::minactivity, and NULL.
Referenced by findDominancePairs(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), and getMinMaxActivityResiduals().
◆ SCIPmatrixGetRowMaxActivity()
SCIP_EXPORT SCIP_Real SCIPmatrixGetRowMaxActivity | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get maximal activity of row
- Parameters
-
matrix matrix instance row row index
Definition at line 1760 of file matrix.c.
References SCIP_Matrix::maxactivity, and NULL.
Referenced by findDominancePairs(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), and getMinMaxActivityResiduals().
◆ SCIPmatrixGetRowNMinActNegInf()
SCIP_EXPORT int SCIPmatrixGetRowNMinActNegInf | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get number of negative infinities present within minimal activity
- Parameters
-
matrix matrix instance row row index
Definition at line 1772 of file matrix.c.
References SCIP_Matrix::minactivityneginf, and NULL.
Referenced by findDominancePairs(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), and getMinMaxActivityResiduals().
◆ SCIPmatrixGetRowNMinActPosInf()
SCIP_EXPORT int SCIPmatrixGetRowNMinActPosInf | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get number of positive infinities present within minimal activity
- Parameters
-
matrix matrix instance row row index
Definition at line 1784 of file matrix.c.
References SCIP_Matrix::minactivityposinf, and NULL.
Referenced by findDominancePairs(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), and getMinMaxActivityResiduals().
◆ SCIPmatrixGetRowNMaxActNegInf()
SCIP_EXPORT int SCIPmatrixGetRowNMaxActNegInf | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get number of negative infinities present within maximal activity
- Parameters
-
matrix matrix instance row row index
Definition at line 1796 of file matrix.c.
References SCIP_Matrix::maxactivityneginf, and NULL.
Referenced by findDominancePairs(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), and getMinMaxActivityResiduals().
◆ SCIPmatrixGetRowNMaxActPosInf()
SCIP_EXPORT int SCIPmatrixGetRowNMaxActPosInf | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get number of positive infinities present within maximal activity
- Parameters
-
matrix matrix instance row row index
Definition at line 1808 of file matrix.c.
References SCIP_Matrix::maxactivityposinf, and NULL.
Referenced by findDominancePairs(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), and getMinMaxActivityResiduals().
◆ SCIPmatrixGetCons()
SCIP_EXPORT SCIP_CONS* SCIPmatrixGetCons | ( | SCIP_MATRIX * | matrix, |
int | row | ||
) |
get constraint pointer for constraint representing row
- Parameters
-
matrix matrix instance row row index
Definition at line 1820 of file matrix.c.
References SCIP_Matrix::cons, and NULL.
Referenced by cancelRow(), detectDominatingVlbs(), detectDominatingVubs(), SCIP_DECL_PRESOLEXEC(), and SCIPincludePresolMILP().
◆ SCIPmatrixUplockConflict()
SCIP_EXPORT SCIP_Bool SCIPmatrixUplockConflict | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get if conflicting uplocks of variable present
get if conflicting uplocks of a specific variable present
- Parameters
-
matrix matrix instance col column index
Definition at line 1832 of file matrix.c.
References NULL, SCIP_Matrix::nuplocks, SCIP_LOCKTYPE_MODEL, SCIPvarGetNLocksUpType(), and SCIP_Matrix::vars.
Referenced by dualBoundStrengthening(), SCIP_DECL_PRESOLEXEC(), and SCIPmatrixCreate().
◆ SCIPmatrixDownlockConflict()
SCIP_EXPORT SCIP_Bool SCIPmatrixDownlockConflict | ( | SCIP_MATRIX * | matrix, |
int | col | ||
) |
get if conflicting downlocks of variable present
get if conflicting downlocks of a specific variable present
- Parameters
-
matrix matrix instance col column index
Definition at line 1844 of file matrix.c.
References SCIP_Matrix::ndownlocks, NULL, SCIP_LOCKTYPE_MODEL, SCIPvarGetNLocksDownType(), and SCIP_Matrix::vars.
Referenced by dualBoundStrengthening(), SCIP_DECL_PRESOLEXEC(), and SCIPmatrixCreate().
◆ SCIPmatrixCreate()
SCIP_EXPORT SCIP_RETCODE SCIPmatrixCreate | ( | SCIP * | scip, |
SCIP_MATRIX ** | matrixptr, | ||
SCIP_Bool | onlyifcomplete, | ||
SCIP_Bool * | initialized, | ||
SCIP_Bool * | complete, | ||
SCIP_Bool * | infeasible, | ||
int * | naddconss, | ||
int * | ndelconss, | ||
int * | nchgcoefs, | ||
int * | nchgbds, | ||
int * | nfixedvars | ||
) |
initialize matrix by copying all check constraints
- Note
- Completeness is checked by testing whether all check constraints are from a list of linear constraint handlers that can be represented.
- Parameters
-
scip current scip instance matrixptr pointer to constraint matrix object to be initialized onlyifcomplete should matrix creation be skipped if matrix will not be complete? initialized was the initialization successful? complete are all constraint represented within the matrix? infeasible pointer to return whether problem was detected to be infeasible during matrix creation naddconss pointer to count number of added (linear) constraints during matrix creation ndelconss pointer to count number of deleted specialized linear constraints during matrix creation nchgcoefs pointer to count number of changed coefficients during matrix creation nchgbds pointer to count number of changed bounds during matrix creation nfixedvars pointer to count number of fixed variables during matrix creation
Definition at line 445 of file matrix.c.
References addConstraint(), BMSclearMemoryArray, calcActivityBounds(), SCIP_Matrix::colmatbeg, SCIP_Matrix::colmatcnt, SCIP_Matrix::colmatind, SCIP_Matrix::colmatval, SCIP_Matrix::cons, FALSE, SCIP_Matrix::isrhsinfinite, SCIP_Matrix::lb, SCIP_Matrix::lhs, SCIP_Matrix::maxactivity, SCIP_Matrix::maxactivityneginf, SCIP_Matrix::maxactivityposinf, SCIP_Matrix::minactivity, SCIP_Matrix::minactivityneginf, SCIP_Matrix::minactivityposinf, SCIP_Matrix::ncols, SCIP_Matrix::ndownlocks, SCIP_Matrix::nnonzs, SCIP_Matrix::nrows, NULL, SCIP_Matrix::nuplocks, SCIP_Matrix::rhs, SCIP_Matrix::rowmatbeg, SCIP_Matrix::rowmatcnt, SCIP_Matrix::rowmatind, SCIP_Matrix::rowmatval, SCIP_Bool, SCIP_CALL, SCIP_ERROR, SCIP_LOCKTYPE_MODEL, SCIP_Longint, SCIP_OKAY, SCIP_Real, SCIP_SETPPCTYPE_COVERING, SCIP_SETPPCTYPE_PACKING, SCIP_SETPPCTYPE_PARTITIONING, SCIPallocBuffer, SCIPallocBufferArray, SCIPallocClearMemoryArray, SCIPcleanupConssKnapsack(), SCIPcleanupConssLinear(), SCIPcleanupConssLogicor(), SCIPcleanupConssSetppc(), SCIPcleanupConssVarbound(), SCIPconshdlrGetCheckConss(), SCIPconshdlrGetName(), SCIPconshdlrGetNCheckConss(), SCIPconsIsModifiable(), SCIPconsIsTransformed(), SCIPdebugMsg, SCIPduplicateBufferArray, SCIPfreeBuffer, SCIPfreeBufferArray, SCIPfreeBufferArrayNull, SCIPfreeMemoryArray, SCIPgetBinvarsLinking(), SCIPgetCapacityKnapsack(), SCIPgetConshdlrs(), SCIPgetLhsLinear(), SCIPgetLhsVarbound(), SCIPgetNActivePricers(), SCIPgetNConshdlrs(), SCIPgetNConss(), SCIPgetNVars(), SCIPgetNVarsKnapsack(), SCIPgetNVarsLinear(), SCIPgetNVarsLogicor(), SCIPgetNVarsSetppc(), SCIPgetRhsLinear(), SCIPgetRhsVarbound(), SCIPgetTypeSetppc(), SCIPgetValsLinear(), SCIPgetValsLinking(), SCIPgetVars(), SCIPgetVarsKnapsack(), SCIPgetVarsLinear(), SCIPgetVarsLogicor(), SCIPgetVarsSetppc(), SCIPgetVarVarbound(), SCIPgetVbdcoefVarbound(), SCIPgetVbdvarVarbound(), SCIPgetWeightsKnapsack(), SCIPinfinity(), SCIPisStopped(), SCIPmatrixDownlockConflict(), SCIPmatrixUplockConflict(), SCIPreallocBufferArray, SCIPvarGetLbGlobal(), SCIPvarGetNLocksDownType(), SCIPvarGetNLocksUpType(), SCIPvarGetUbGlobal(), setColumnMajorFormat(), TRUE, SCIP_Matrix::ub, and SCIP_Matrix::vars.
Referenced by SCIP_DECL_PRESOLEXEC(), and SCIPincludePresolMILP().
◆ SCIPmatrixFree()
SCIP_EXPORT void SCIPmatrixFree | ( | SCIP * | scip, |
SCIP_MATRIX ** | matrix | ||
) |
frees the constraint matrix
- Parameters
-
scip current SCIP instance matrix constraint matrix object
Definition at line 1032 of file matrix.c.
References NULL, SCIPfreeBuffer, SCIPfreeBufferArray, SCIPfreeBufferArrayNull, and SCIPfreeMemoryArray.
Referenced by SCIP_DECL_PRESOLEXEC(), and SCIPincludePresolMILP().
◆ SCIPmatrixPrintRow()
SCIP_EXPORT void SCIPmatrixPrintRow | ( | SCIP * | scip, |
SCIP_MATRIX * | matrix, | ||
int | row | ||
) |
print one row of the MIP matrix
print one row of the matrix
- Parameters
-
scip current SCIP instance matrix constraint matrix object row row index
Definition at line 1095 of file matrix.c.
References SCIP_Matrix::cons, SCIP_Matrix::lhs, SCIP_Matrix::rhs, SCIP_Matrix::rowmatbeg, SCIP_Matrix::rowmatcnt, SCIP_Matrix::rowmatind, SCIP_Matrix::rowmatval, SCIP_Real, SCIP_UNUSED, SCIPconsGetName(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetUbGlobal(), and SCIP_Matrix::vars.
Referenced by cancelRow(), and compensateVarLock().
◆ SCIPmatrixGetParallelRows()
SCIP_EXPORT SCIP_RETCODE SCIPmatrixGetParallelRows | ( | SCIP * | scip, |
SCIP_MATRIX * | matrix, | ||
SCIP_Real * | scale, | ||
int * | pclass | ||
) |
detect parallel rows, rhs/lhs are ignored
detect parallel rows of matrix. rhs/lhs are ignored.
- Parameters
-
scip SCIP instance matrix matrix containing the constraints scale scale factors of rows pclass parallel row classes
Definition at line 1174 of file matrix.c.
References BMSclearMemoryArray, SCIP_Matrix::colmatbeg, SCIP_Matrix::colmatcnt, SCIP_Matrix::colmatind, SCIP_Matrix::colmatval, SCIP_Matrix::ncols, SCIP_Matrix::nrows, NULL, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPfreeBufferArray, SCIPisEQ(), SCIPsortIntIntReal(), SCIPsortRealInt(), and TRUE.
◆ SCIPmatrixRemoveColumnBounds()
SCIP_EXPORT void SCIPmatrixRemoveColumnBounds | ( | SCIP * | scip, |
SCIP_MATRIX * | matrix, | ||
int | col | ||
) |
removes the bounds of a column and updates the activities accordingly
- Parameters
-
scip current scip instance matrix constraint matrix col column variable to remove bounds from
Definition at line 1129 of file matrix.c.
References SCIP_Matrix::colmatbeg, SCIP_Matrix::colmatcnt, SCIP_Matrix::colmatind, SCIP_Matrix::colmatval, SCIP_Matrix::lb, SCIP_Matrix::maxactivity, SCIP_Matrix::maxactivityneginf, SCIP_Matrix::maxactivityposinf, SCIP_Matrix::minactivity, SCIP_Matrix::minactivityneginf, SCIP_Matrix::minactivityposinf, SCIP_Real, SCIPinfinity(), SCIPisInfinity(), and SCIP_Matrix::ub.
Referenced by aggregation().
◆ SCIPmatrixGetParallelCols()
SCIP_EXPORT SCIP_RETCODE SCIPmatrixGetParallelCols | ( | SCIP * | scip, |
SCIP_MATRIX * | matrix, | ||
SCIP_Real * | scale, | ||
int * | pclass, | ||
SCIP_Bool * | varineq | ||
) |
detect parallel columns, obj ignored
detect parallel rows of matrix. obj coefficients are ignored.
- Parameters
-
scip SCIP instance matrix matrix containing the constraints scale scale factors of cols pclass parallel column classes varineq indicating if variable is within an equation
Definition at line 1330 of file matrix.c.
References BMSclearMemoryArray, SCIP_Matrix::isrhsinfinite, SCIP_Matrix::ncols, SCIP_Matrix::nrows, NULL, r, SCIP_Matrix::rowmatbeg, SCIP_Matrix::rowmatcnt, SCIP_Matrix::rowmatind, SCIP_Matrix::rowmatval, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPfreeBufferArray, SCIPisEQ(), SCIPsortIntIntReal(), SCIPsortRealInt(), and TRUE.