#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
#include "scip/type_var.h"
#include "symmetry/type_symmetry.h"

Typedefs
typedef enum SCIP_ColumnOrdering	SCIP_COLUMNORDERING

typedef enum SCIP_RowOrdering	SCIP_ROWORDERING

typedef struct SCIP_OrbitopalReductionData	SCIP_ORBITOPALREDDATA

Enumerations
enum	SCIP_ColumnOrdering { SCIP_COLUMNORDERING_NONE = 0, SCIP_COLUMNORDERING_FIRST = 1, SCIP_COLUMNORDERING_LAST = 2, SCIP_COLUMNORDERING_CENTRE = 3, SCIP_COLUMNORDERING_MEDIAN = 4 }

enum	SCIP_RowOrdering { SCIP_ROWORDERING_NONE = 0, SCIP_ROWORDERING_BRANCHING = 1 }

Functions
SCIP_RETCODE	SCIPorbitopalReductionGetStatistics (SCIP scip, SCIP_ORBITOPALREDDATA orbireddata, int nred, int ncutoff)

SCIP_RETCODE	SCIPorbitopalReductionPrintStatistics (SCIP scip, SCIP_ORBITOPALREDDATA orbireddata)

SCIP_RETCODE	SCIPorbitopalReductionPropagate (SCIP scip, SCIP_ORBITOPALREDDATA orbireddata, SCIP_Bool infeasible, int nred, SCIP_Bool *didrun)

SCIP_RETCODE	SCIPorbitopalReductionAddOrbitope (SCIP scip, SCIP_ORBITOPALREDDATA orbireddata, SCIP_ROWORDERING rowordering, SCIP_COLUMNORDERING colordering, SCIP_VAR *vars, int nrows, int ncols, SCIP_Bool success)

SCIP_RETCODE	SCIPorbitopalReductionReset (SCIP scip, SCIP_ORBITOPALREDDATA orbireddata)

SCIP_RETCODE	SCIPorbitopalReductionFree (SCIP scip, SCIP_ORBITOPALREDDATA *orbireddata)

SCIP_RETCODE	SCIPincludeOrbitopalReduction (SCIP scip, SCIP_ORBITOPALREDDATA *orbireddata)

SCIP_COLUMNORDERING	SCIPorbitopalReductionGetDefaultColumnOrdering (SCIP_ORBITOPALREDDATA *orbireddata)

Typedef Documentation

◆ SCIP_COLUMNORDERING

typedef enum SCIP_ColumnOrdering SCIP_COLUMNORDERING

variants for orbitope column ordering

Definition at line 56 of file symmetry_orbitopal.h.

◆ SCIP_ROWORDERING

typedef enum SCIP_RowOrdering SCIP_ROWORDERING

variants for orbitope row ordering

Definition at line 64 of file symmetry_orbitopal.h.

◆ SCIP_ORBITOPALREDDATA

typedef struct SCIP_OrbitopalReductionData SCIP_ORBITOPALREDDATA

data for orbitopal reduction

Definition at line 69 of file symmetry_orbitopal.h.

Enumeration Type Documentation

◆ SCIP_ColumnOrdering

enum SCIP_ColumnOrdering

variants for orbitope column ordering

Enumerator
SCIP_COLUMNORDERING_NONE	do not order the columns
SCIP_COLUMNORDERING_FIRST	choose first possible column
SCIP_COLUMNORDERING_LAST	choose last possible column
SCIP_COLUMNORDERING_CENTRE	choose centremost possible column
SCIP_COLUMNORDERING_MEDIAN	choose median column

Definition at line 48 of file symmetry_orbitopal.h.

◆ SCIP_RowOrdering

enum SCIP_RowOrdering

variants for orbitope row ordering

Enumerator
SCIP_ROWORDERING_NONE	do not order the rows
SCIP_ROWORDERING_BRANCHING	choose rows based on branching variables

Definition at line 59 of file symmetry_orbitopal.h.

Function Documentation

◆ SCIPorbitopalReductionGetStatistics()

SCIP_RETCODE SCIPorbitopalReductionGetStatistics	(	SCIP *	scip,
		SCIP_ORBITOPALREDDATA *	orbireddata,
		int *	nred,
		int *	ncutoff
	)

gets the number of reductions

Parameters

scip	SCIP data structure
orbireddata	orbitopal reduction data structure
nred	total number of reductions applied
ncutoff	total number of cutoffs applied

Definition at line 2122 of file symmetry_orbitopal.c.

References NULL, and SCIP_OKAY.

Referenced by SCIP_DECL_TABLEOUTPUT().

◆ SCIPorbitopalReductionPrintStatistics()

SCIP_RETCODE SCIPorbitopalReductionPrintStatistics	(	SCIP *	scip,
		SCIP_ORBITOPALREDDATA *	orbireddata
	)

prints orbitopal reduction data

Parameters

scip	SCIP data structure
orbireddata	orbitopal reduction data structure

Definition at line 2141 of file symmetry_orbitopal.c.

References NULL, SCIP_OKAY, SCIP_VERBLEVEL_HIGH, and SCIPverbMessage().

Referenced by SCIPdisplaySymmetryStatistics().

◆ SCIPorbitopalReductionPropagate()

SCIP_RETCODE SCIPorbitopalReductionPropagate	(	SCIP *	scip,
		SCIP_ORBITOPALREDDATA *	orbireddata,
		SCIP_Bool *	infeasible,
		int *	nred,
		SCIP_Bool *	didrun
	)

propagates orbitopal reduction

Parameters

scip	SCIP data structure
orbireddata	orbitopal reduction data structure
infeasible	pointer to store whether infeasibility is found
nred	pointer to store the number of domain reductions
didrun	a global pointer maintaining if any symmetry propagator has run only set this to TRUE when a reduction is found, never set to FALSE

Definition at line 2173 of file symmetry_orbitopal.c.

References FALSE, NULL, propagateOrbitope(), SCIP_CALL, SCIP_OKAY, SCIPallowStrongDualReds(), SCIPdebugMessage, SCIPinProbing(), and TRUE.

Referenced by propagateSymmetry().

◆ SCIPorbitopalReductionAddOrbitope()

SCIP_RETCODE SCIPorbitopalReductionAddOrbitope	(	SCIP *	scip,
		SCIP_ORBITOPALREDDATA *	orbireddata,
		SCIP_ROWORDERING	rowordering,
		SCIP_COLUMNORDERING	colordering,
		SCIP_VAR **	vars,
		int	nrows,
		int	ncols,
		SCIP_Bool *	success
	)

adds orbitopal component to orbitopal symmetry handler

Parameters

scip	SCIP data structure
orbireddata	orbitopal reduction data structure
rowordering	specifies how rows of orbitope are ordered
colordering	specifies how columnss of orbitope are ordered
vars	matrix of variables on which the symmetry acts
nrows	number of rows
ncols	number of columns
success	to store whether the component is successfully added