Detailed Description

internal methods for storing primal CIP solutions

Author: Tobias Achterberg

Definition in file sol.h.

#include <stdio.h>
#include "scip/def.h"
#include "blockmemshell/memory.h"
#include "scip/type_retcode.h"
#include "scip/type_set.h"
#include "scip/type_stat.h"
#include "scip/type_lp.h"
#include "scip/type_nlp.h"
#include "scip/type_var.h"
#include "scip/type_prob.h"
#include "scip/type_sol.h"
#include "scip/type_primal.h"
#include "scip/type_tree.h"
#include "scip/type_heur.h"
#include "scip/pub_sol.h"

Go to the source code of this file.

Functions
SCIP_RETCODE	SCIPsolCreate (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_HEUR *heur)

SCIP_RETCODE	SCIPsolCreateOriginal (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PROB origprob, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_HEUR heur)

SCIP_RETCODE	SCIPsolCopy (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PRIMAL primal, SCIP_SOL sourcesol)

SCIP_RETCODE	SCIPsolTransform (SCIP_SOL sol, SCIP_SOL transsol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_PRIMAL primal)

SCIP_RETCODE	SCIPsolAdjustImplicitSolVals (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_TREE *tree, SCIP_Bool uselprows)

SCIP_RETCODE	SCIPsolCreateLPSol (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_LP lp, SCIP_HEUR *heur)

SCIP_RETCODE	SCIPsolCreateNLPSol (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_NLP nlp, SCIP_HEUR heur)

SCIP_RETCODE	SCIPsolCreateRelaxSol (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_RELAXATION relaxation, SCIP_HEUR heur)

SCIP_RETCODE	SCIPsolCreatePseudoSol (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_LP lp, SCIP_HEUR *heur)

SCIP_RETCODE	SCIPsolCreateCurrentSol (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_LP lp, SCIP_HEUR *heur)

SCIP_RETCODE	SCIPsolCreatePartial (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PRIMAL primal, SCIP_HEUR heur)

SCIP_RETCODE	SCIPsolCreateUnknown (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_SET set, SCIP_STAT stat, SCIP_PRIMAL primal, SCIP_TREE tree, SCIP_HEUR *heur)

SCIP_RETCODE	SCIPsolFree (SCIP_SOL *sol, BMS_BLKMEM blkmem, SCIP_PRIMAL *primal)

SCIP_RETCODE	SCIPsolLinkLPSol (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_TREE tree, SCIP_LP lp)

SCIP_RETCODE	SCIPsolLinkNLPSol (SCIP_SOL sol, SCIP_STAT stat, SCIP_TREE tree, SCIP_NLP nlp)

SCIP_RETCODE	SCIPsolLinkRelaxSol (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_TREE tree, SCIP_RELAXATION *relaxation)

SCIP_RETCODE	SCIPsolLinkPseudoSol (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_TREE tree, SCIP_LP lp)

SCIP_RETCODE	SCIPsolLinkCurrentSol (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_TREE tree, SCIP_LP lp)

SCIP_RETCODE	SCIPsolClear (SCIP_SOL sol, SCIP_STAT stat, SCIP_TREE *tree)

SCIP_RETCODE	SCIPsolSetUnknown (SCIP_SOL sol, SCIP_STAT stat, SCIP_TREE *tree)

SCIP_RETCODE	SCIPsolUnlink (SCIP_SOL sol, SCIP_SET set, SCIP_PROB *prob)

SCIP_RETCODE	SCIPsolSetVal (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_TREE tree, SCIP_VAR *var, SCIP_Real val)

SCIP_RETCODE	SCIPsolIncVal (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_TREE tree, SCIP_VAR *var, SCIP_Real incval)

SCIP_Real	SCIPsolGetVal (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_VAR var)

SCIP_Real	SCIPsolGetRayVal (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_VAR var)

SCIP_Real	SCIPsolGetObj (SCIP_SOL sol, SCIP_SET set, SCIP_PROB transprob, SCIP_PROB origprob)

void	SCIPsolUpdateVarObj (SCIP_SOL sol, SCIP_VAR var, SCIP_Real oldobj, SCIP_Real newobj)

SCIP_RETCODE	SCIPsolMarkPartial (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_VAR *vars, int nvars)

SCIP_RETCODE	SCIPsolCheck (SCIP_SOL sol, SCIP_SET set, SCIP_MESSAGEHDLR messagehdlr, BMS_BLKMEM blkmem, SCIP_STAT stat, SCIP_PROB prob, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *feasible)

SCIP_RETCODE	SCIPsolRound (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_TREE tree, SCIP_Bool success)

void	SCIPsolUpdateVarsum (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB prob, SCIP_Real weight)

SCIP_RETCODE	SCIPsolRetransform (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB origprob, SCIP_PROB transprob, SCIP_Bool hasinfval)

void	SCIPsolRecomputeObj (SCIP_SOL sol, SCIP_SET set, SCIP_STAT stat, SCIP_PROB origprob)

SCIP_Bool	SCIPsolsAreEqual (SCIP_SOL sol1, SCIP_SOL sol2, SCIP_SET set, SCIP_STAT stat, SCIP_PROB origprob, SCIP_PROB transprob)

SCIP_RETCODE	SCIPsolPrint (SCIP_SOL sol, SCIP_SET set, SCIP_MESSAGEHDLR messagehdlr, SCIP_STAT stat, SCIP_PROB prob, SCIP_PROB transprob, FILE *file, SCIP_Bool mipstart, SCIP_Bool printzeros)

SCIP_RETCODE	SCIPsolPrintRay (SCIP_SOL sol, SCIP_SET set, SCIP_MESSAGEHDLR messagehdlr, SCIP_STAT stat, SCIP_PROB prob, SCIP_PROB transprob, FILE *file, SCIP_Bool printzeros)

void	SCIPsolResetViolations (SCIP_SOL *sol)

void	SCIPsolUpdateIntegralityViolation (SCIP_SOL *sol, SCIP_Real absviolintegrality)

void	SCIPsolUpdateBoundViolation (SCIP_SOL *sol, SCIP_Real absviolbounds, SCIP_Real relviolbounds)

void	SCIPsolUpdateLPRowViolation (SCIP_SOL *sol, SCIP_Real absviollprows, SCIP_Real relviollprows)

void	SCIPsolUpdateConsViolation (SCIP_SOL *sol, SCIP_Real absviolcons, SCIP_Real relviolcons)

void	SCIPsolUpdateLPConsViolation (SCIP_SOL *sol, SCIP_Real absviol, SCIP_Real relviol)

void	SCIPsolOrigAddObjval (SCIP_SOL *sol, SCIP_Real addval)

int	SCIPsolGetPrimalIndex (SCIP_SOL *sol)

void	SCIPsolSetPrimalIndex (SCIP_SOL *sol, int primalindex)

Function Documentation

◆ SCIPsolCreate()

SCIP_RETCODE SCIPsolCreate	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to zero

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
primal	primal data
tree	branch and bound tree
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 279 of file sol.c.

References BMSallocBlockMemory, FALSE, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_ZERO, SCIPboolarrayCreate(), SCIPprimalSolCreated(), SCIPrealarrayCreate(), SCIPsolResetViolations(), SCIPsolSetHeur(), SCIP_Stat::solindex, solStamp(), and TRUE.

Referenced by SCIPcreateSol(), SCIPprimalTransformSol(), SCIPsolCreateLPSol(), SCIPsolCreateNLPSol(), SCIPsolCreatePseudoSol(), SCIPsolCreateRelaxSol(), and updatePrimalRay().

◆ SCIPsolCreateOriginal()

SCIP_RETCODE SCIPsolCreateOriginal	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	origprob,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_HEUR *	heur
	)

creates primal CIP solution in original problem space, initialized to the offset in the original problem

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
origprob	original problem data
primal	primal data
tree	branch and bound tree
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 316 of file sol.c.

References BMSallocBlockMemory, FALSE, NULL, SCIP_Prob::objoffset, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_ORIGINAL, SCIPboolarrayCreate(), SCIPprimalSolCreated(), SCIPrealarrayCreate(), SCIPsolResetViolations(), SCIPsolSetHeur(), SCIP_Stat::solindex, solStamp(), and TRUE.

Referenced by SCIPcreateOrigSol(), and SCIPcreateSol().

◆ SCIPsolCopy()

SCIP_RETCODE SCIPsolCopy	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PRIMAL *	primal,
		SCIP_SOL *	sourcesol
	)

creates a copy of a primal CIP solution

Parameters

sol	pointer to store the copy of the primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
primal	primal data
sourcesol	primal CIP solution to copy

Definition at line 353 of file sol.c.

References SCIP_Viol::absviolbounds, SCIP_Viol::absviolcons, SCIP_Viol::absviolintegrality, SCIP_Viol::absviollprows, BMSallocBlockMemory, SCIP_Sol::depth, SCIP_Sol::hasinfval, SCIP_Sol::lpcount, SCIP_Sol::nodenum, NULL, SCIP_Sol::obj, SCIP_Viol::relviolbounds, SCIP_Viol::relviolcons, SCIP_Viol::relviollprows, SCIP_Sol::runnum, SCIP_ALLOC, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_SOLTYPE_HEUR, SCIP_SOLTYPE_LPRELAX, SCIP_SOLTYPE_PSEUDO, SCIP_SOLTYPE_RELAX, SCIP_SOLTYPE_STRONGBRANCH, SCIP_SOLTYPE_UNKNOWN, SCIPboolarrayCopy(), SCIPerrorMessage, SCIPprimalSolCreated(), SCIPrealarrayCopy(), SCIPsolGetHeur(), SCIPsolGetRelax(), SCIPsolSetHeur(), SCIPsolSetRelax(), SCIP_Stat::solindex, SCIP_Sol::solorigin, SCIP_Sol::time, SCIP_Sol::type, SCIP_Sol::valid, SCIP_Sol::vals, and SCIP_Sol::viol.

Referenced by SCIPcreateSolCopy(), SCIPcreateSolCopyOrig(), SCIPprimalAddOrigSol(), SCIPprimalAddSol(), SCIPprimalTrySol(), SCIPprimalUpdateRay(), SCIPreoptAddOptSol(), and soltreeAddSol().

◆ SCIPsolTransform()

SCIP_RETCODE SCIPsolTransform	(	SCIP_SOL *	sol,
		SCIP_SOL **	transsol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_PRIMAL *	primal
	)

transformes given original solution to the transformed space; a corresponding transformed solution has to be given which is copied into the existing solution and freed afterwards

Parameters

sol	primal CIP solution to change, living in original space
transsol	pointer to corresponding transformed primal CIP solution
blkmem	block memory
set	global SCIP settings
primal	primal data

Definition at line 417 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_Sol::primalindex, SCIP_CALL, SCIP_OKAY, SCIPsolFree(), SCIPsolIsOriginal(), SCIP_Sol::solorigin, SCIP_Sol::valid, and SCIP_Sol::vals.

Referenced by primalAddSol().

◆ SCIPsolAdjustImplicitSolVals()

SCIP_RETCODE SCIPsolAdjustImplicitSolVals	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_TREE *	tree,
		SCIP_Bool	uselprows
	)

adjusts solution values of implicit integer variables in handed solution. Solution objective value is not deteriorated by this method.

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
prob	either original or transformed problem, depending on sol origin
tree	branch and bound tree
uselprows	should LP row information be considered for none-objective variables

Definition at line 464 of file sol.c.

References FALSE, NULL, r, SCIP_Bool, SCIP_CALL, SCIP_LOCKTYPE_MODEL, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_COLUMN, SCIP_VARTYPE_IMPLINT, SCIPcolGetNNonz(), SCIPcolGetRows(), SCIPcolGetVals(), SCIPprobGetNBinVars(), SCIPprobGetNImplVars(), SCIPprobGetNIntVars(), SCIPprobGetVars(), SCIProwGetLhs(), SCIProwGetRhs(), SCIProwGetSolActivity(), SCIProwIsInLP(), SCIProwIsLocal(), SCIPsetCeil(), SCIPsetFloor(), SCIPsetIsFeasGE(), SCIPsetIsFeasGT(), SCIPsetIsFeasIntegral(), SCIPsetIsFeasLE(), SCIPsetIsFeasLT(), SCIPsetIsFeasNegative(), SCIPsetIsFeasPositive(), SCIPsetIsInfinity(), SCIPsetIsNegative(), SCIPsetIsPositive(), SCIPsetIsZero(), SCIPsolGetVal(), SCIPsolSetVal(), SCIPvarGetCol(), SCIPvarGetLbGlobal(), SCIPvarGetNLocksDownType(), SCIPvarGetNLocksUpType(), SCIPvarGetStatus(), SCIPvarGetType(), SCIPvarGetUbGlobal(), SCIPvarGetUnchangedObj(), and TRUE.

Referenced by SCIPadjustImplicitSolVals().

◆ SCIPsolCreateLPSol()

SCIP_RETCODE SCIPsolCreateLPSol	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_LP *	lp,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to the current LP solution

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
primal	primal data
tree	branch and bound tree
lp	current LP data
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 599 of file sol.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPlpIsSolved(), SCIPsolCreate(), and SCIPsolLinkLPSol().

Referenced by addCurrentSolution(), SCIPcreateLPSol(), SCIPsolCreateCurrentSol(), SCIPsolveCIP(), and solveNodeLP().

◆ SCIPsolCreateNLPSol()

SCIP_RETCODE SCIPsolCreateNLPSol	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_NLP *	nlp,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to the current NLP solution

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
primal	primal data
tree	branch and bound tree
nlp	current NLP data
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 622 of file sol.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPsolCreate(), and SCIPsolLinkNLPSol().

Referenced by SCIPcreateNLPSol().

◆ SCIPsolCreateRelaxSol()

SCIP_RETCODE SCIPsolCreateRelaxSol	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_RELAXATION *	relaxation,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to the current relaxation solution

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
primal	primal data
tree	branch and bound tree
relaxation	global relaxation data
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 643 of file sol.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPrelaxationGetSolRelax(), SCIPrelaxationIsSolValid(), SCIPsolCreate(), SCIPsolLinkRelaxSol(), and SCIPsolSetRelax().

Referenced by addCurrentSolution(), enforceConstraints(), SCIPcreateRelaxSol(), SCIPsolveCIP(), and solveNode().

◆ SCIPsolCreatePseudoSol()

SCIP_RETCODE SCIPsolCreatePseudoSol	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_LP *	lp,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to the current pseudo solution

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
primal	primal data
tree	branch and bound tree, or NULL
lp	current LP data
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 669 of file sol.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPsolCreate(), SCIPsolLinkPseudoSol(), and SCIPsolSetPseudo().

Referenced by addCurrentSolution(), SCIPcreatePseudoSol(), SCIPsolCreateCurrentSol(), and SCIPsolveCIP().

◆ SCIPsolCreateCurrentSol()

SCIP_RETCODE SCIPsolCreateCurrentSol	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_LP *	lp,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to the current solution

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
primal	primal data
tree	branch and bound tree
lp	current LP data
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 694 of file sol.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPsolCreateLPSol(), SCIPsolCreatePseudoSol(), and SCIPtreeHasCurrentNodeLP().

Referenced by primalLinkCurrentSol(), SCIPcreateCurrentSol(), SCIPprintSol(), SCIPprintTransSol(), and solveNode().

◆ SCIPsolCreatePartial()

SCIP_RETCODE SCIPsolCreatePartial	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PRIMAL *	primal,
		SCIP_HEUR *	heur
	)

creates partial primal CIP solution, initialized to unknown values

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
primal	primal data
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 721 of file sol.c.

References BMSallocBlockMemory, FALSE, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_PARTIAL, SCIP_UNKNOWN, SCIPboolarrayCreate(), SCIPprimalSolCreated(), SCIPrealarrayCreate(), SCIPsolResetViolations(), SCIPsolSetHeur(), SCIP_Stat::solindex, solStamp(), and TRUE.

Referenced by SCIPcreatePartialSol().

◆ SCIPsolCreateUnknown()

SCIP_RETCODE SCIPsolCreateUnknown	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PRIMAL *	primal,
		SCIP_TREE *	tree,
		SCIP_HEUR *	heur
	)

creates primal CIP solution, initialized to unknown values

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
set	global SCIP settings
stat	problem statistics data
primal	primal data
tree	branch and bound tree
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 757 of file sol.c.

References BMSallocBlockMemory, FALSE, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_UNKNOWN, SCIPboolarrayCreate(), SCIPprimalSolCreated(), SCIPrealarrayCreate(), SCIPsolResetViolations(), SCIPsolSetHeur(), SCIP_Stat::solindex, solStamp(), and TRUE.

Referenced by SCIPcreateUnknownSol().

◆ SCIPsolFree()

SCIP_RETCODE SCIPsolFree	(	SCIP_SOL **	sol,
		BMS_BLKMEM *	blkmem,
		SCIP_PRIMAL *	primal
	)

frees primal CIP solution

Parameters

sol	pointer to primal CIP solution
blkmem	block memory
primal	primal data

Definition at line 792 of file sol.c.

References BMSfreeBlockMemory, NULL, SCIP_CALL, SCIP_OKAY, SCIPboolarrayFree(), SCIPprimalSolFreed(), and SCIPrealarrayFree().

Referenced by enforceConstraints(), freeTransform(), primalAddOrigSol(), primalAddSol(), SCIPfreeSol(), SCIPprimalAddOrigSolFree(), SCIPprimalAddSolFree(), SCIPprimalClear(), SCIPprimalFree(), SCIPprimalTrySolFree(), SCIPprimalUpdateRay(), SCIPprintSol(), SCIPprintTransSol(), SCIPreoptFree(), SCIPsolTransform(), SCIPsolveCIP(), SCIPtransformProb(), SCIPtrySolFree(), soltreefreeNode(), solveNode(), solveNodeLP(), and updatePrimalRay().

◆ SCIPsolLinkLPSol()

SCIP_RETCODE SCIPsolLinkLPSol	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_TREE *	tree,
		SCIP_LP *	lp
	)

copies current LP solution into CIP solution by linking

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
tree	branch and bound tree
lp	current LP data

Definition at line 811 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_Col::primsol, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_LPSOL, SCIPcolGetVar(), SCIPlpDiving(), SCIPlpDivingObjChanged(), SCIPlpGetCols(), SCIPlpGetLooseObjval(), SCIPlpGetNCols(), SCIPlpGetObjval(), SCIPsetDebugMsg, SCIPsetIsInfinity(), SCIPtreeProbing(), SCIPvarGetUnchangedObj(), solClearArrays(), SCIP_Sol::solorigin, solStamp(), SCIP_Lp::solved, and TRUE.

Referenced by SCIPlinkLPSol(), SCIPsolCreateLPSol(), and SCIPsolLinkCurrentSol().

◆ SCIPsolLinkNLPSol()

SCIP_RETCODE SCIPsolLinkNLPSol	(	SCIP_SOL *	sol,
		SCIP_STAT *	stat,
		SCIP_TREE *	tree,
		SCIP_NLP *	nlp
	)

copies current NLP solution into CIP solution by linking

Parameters

sol	primal CIP solution
stat	problem statistics data
tree	branch and bound tree
nlp	current NLP data

Definition at line 869 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_CALL, SCIP_NLPSOLSTAT_FEASIBLE, SCIP_OKAY, SCIP_SOLORIGIN_NLPSOL, SCIPnlpGetNVars(), SCIPnlpGetObjval(), SCIPnlpGetSolstat(), SCIPnlpGetVars(), SCIPnlpIsDivingObjChanged(), SCIPstatDebugMsg, SCIPvarGetNLPSol(), SCIPvarGetUnchangedObj(), SCIPvarIsActive(), solClearArrays(), SCIP_Sol::solorigin, solStamp(), and TRUE.

Referenced by SCIPlinkNLPSol(), and SCIPsolCreateNLPSol().

◆ SCIPsolLinkRelaxSol()

SCIP_RETCODE SCIPsolLinkRelaxSol	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_TREE *	tree,
		SCIP_RELAXATION *	relaxation
	)

copies current relaxation solution into CIP solution by linking

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
tree	branch and bound tree
relaxation	global relaxation data

Definition at line 920 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_RELAXSOL, SCIPrelaxationGetSolObj(), SCIPrelaxationIsSolValid(), SCIPsetDebugMsg, solClearArrays(), SCIP_Sol::solorigin, solStamp(), and TRUE.

Referenced by SCIPlinkRelaxSol(), and SCIPsolCreateRelaxSol().

◆ SCIPsolLinkPseudoSol()

SCIP_RETCODE SCIPsolLinkPseudoSol	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_TREE *	tree,
		SCIP_LP *	lp
	)

copies current pseudo solution into CIP solution by linking

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
tree	branch and bound tree, or NULL
lp	current LP data

Definition at line 950 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_PSEUDOSOL, SCIPlpGetPseudoObjval(), SCIPsetDebugMsg, solClearArrays(), SCIP_Sol::solorigin, solStamp(), and TRUE.

Referenced by SCIPlinkPseudoSol(), SCIPsolCreatePseudoSol(), and SCIPsolLinkCurrentSol().

◆ SCIPsolLinkCurrentSol()

SCIP_RETCODE SCIPsolLinkCurrentSol	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_TREE *	tree,
		SCIP_LP *	lp
	)

copies current solution (LP or pseudo solution) into CIP solution by linking

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
tree	branch and bound tree
lp	current LP data

Definition at line 979 of file sol.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPlpIsSolved(), SCIPsetDebugMsg, SCIPsolLinkLPSol(), SCIPsolLinkPseudoSol(), and SCIPtreeHasCurrentNodeLP().

Referenced by primalLinkCurrentSol(), and SCIPlinkCurrentSol().

◆ SCIPsolClear()

SCIP_RETCODE SCIPsolClear	(	SCIP_SOL *	sol,
		SCIP_STAT *	stat,
		SCIP_TREE *	tree
	)

clears primal CIP solution

Parameters

sol	primal CIP solution
stat	problem statistics data
tree	branch and bound tree

Definition at line 1005 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_ZERO, solClearArrays(), SCIP_Sol::solorigin, solStamp(), and TRUE.

Referenced by SCIPclearSol().

◆ SCIPsolSetUnknown()

SCIP_RETCODE SCIPsolSetUnknown	(	SCIP_SOL *	sol,
		SCIP_STAT *	stat,
		SCIP_TREE *	tree
	)

declares all entries in the primal CIP solution to be unknown

Parameters

sol	primal CIP solution
stat	problem statistics data
tree	branch and bound tree

Definition at line 1022 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_UNKNOWN, solClearArrays(), SCIP_Sol::solorigin, solStamp(), and TRUE.

◆ SCIPsolUnlink()

SCIP_RETCODE SCIPsolUnlink	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_PROB *	prob
	)

stores solution values of variables in solution's own array

Parameters

sol	primal CIP solution
set	global SCIP settings
prob	transformed problem data

Definition at line 1039 of file sol.c.

References NULL, SCIP_Prob::nvars, SCIP_CALL, SCIP_OKAY, SCIP_SOLORIGIN_UNKNOWN, SCIP_SOLORIGIN_ZERO, SCIPsetDebugMsg, SCIPsolIsOriginal(), SCIP_Sol::solorigin, solUnlinkVar(), and SCIP_Prob::vars.

Referenced by primalAddSol(), SCIPaddSol(), SCIPaddSolFree(), SCIPtrySol(), SCIPtrySolFree(), and SCIPunlinkSol().

◆ SCIPsolSetVal()

SCIP_RETCODE SCIPsolSetVal	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_TREE *	tree,
		SCIP_VAR *	var,
		SCIP_Real	val
	)

sets value of variable in primal CIP solution

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
tree	branch and bound tree, or NULL
var	variable to add to solution
val	solution value of variable

Definition at line 1068 of file sol.c.

References FALSE, SCIP_Stat::lpcount, SCIP_Stat::nnodes, SCIP_Sol::nodenum, SCIP_Stat::nruns, NULL, SCIP_Sol::runnum, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_LPSOL, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, SCIP_SOLORIGIN_UNKNOWN, SCIP_SOLORIGIN_ZERO, SCIP_UNKNOWN, SCIP_VARSTATUS_AGGREGATED, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_MULTAGGR, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIPboolarrayGetVal(), SCIPerrorMessage, SCIPisFinite, SCIPsetDebugMsg, SCIPsetInfinity(), SCIPsetIsInfinity(), SCIPsetIsZero(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolSetVal(), SCIPvarGetAggrConstant(), SCIPvarGetAggrScalar(), SCIPvarGetAggrVar(), SCIPvarGetIndex(), SCIPvarGetLbGlobal(), SCIPvarGetMultaggrConstant(), SCIPvarGetMultaggrNVars(), SCIPvarGetMultaggrScalars(), SCIPvarGetMultaggrVars(), SCIPvarGetName(), SCIPvarGetNegationConstant(), SCIPvarGetNegationVar(), SCIPvarGetStatus(), SCIPvarGetTransVar(), SCIPvarGetUnchangedObj(), solGetArrayVal(), SCIP_Sol::solorigin, solSetArrayVal(), and solStamp().

Referenced by SCIPprimalTransformSol(), SCIPsetSolVal(), SCIPsetSolVals(), SCIPsolAdjustImplicitSolVals(), SCIPsolRound(), SCIPsolSetVal(), separateAlternativeProofs(), and updatePrimalRay().

◆ SCIPsolIncVal()

SCIP_RETCODE SCIPsolIncVal	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_TREE *	tree,
		SCIP_VAR *	var,
		SCIP_Real	incval
	)

increases value of variable in primal CIP solution

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
tree	branch and bound tree
var	variable to increase solution value for
incval	increment for solution value of variable

Definition at line 1262 of file sol.c.

References FALSE, SCIP_Stat::lpcount, SCIP_Stat::nnodes, SCIP_Sol::nodenum, SCIP_Stat::nruns, NULL, SCIP_Sol::runnum, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_LPSOL, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_ZERO, SCIP_VARSTATUS_AGGREGATED, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_MULTAGGR, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIPboolarrayGetVal(), SCIPerrorMessage, SCIPsetDebugMsg, SCIPsetIsInfinity(), SCIPsetIsZero(), SCIPsolIncVal(), SCIPsolIsOriginal(), SCIPvarGetAggrScalar(), SCIPvarGetAggrVar(), SCIPvarGetIndex(), SCIPvarGetName(), SCIPvarGetNegationVar(), SCIPvarGetStatus(), SCIPvarGetTransVar(), SCIPvarGetUnchangedObj(), solGetArrayVal(), solIncArrayVal(), SCIP_Sol::solorigin, and solStamp().

Referenced by SCIPincSolVal(), and SCIPsolIncVal().

◆ SCIPsolGetVal()

SCIP_Real SCIPsolGetVal	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_VAR *	var
	)

returns value of variable in primal CIP solution

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
var	variable to get value for

Definition at line 1338 of file sol.c.

References SCIP_Sol::lpcount, SCIP_Stat::lpcount, SCIP_Stat::nnodes, SCIP_Sol::nodenum, SCIP_Stat::nruns, NULL, SCIP_Sol::runnum, scalars, SCIP_INVALID, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_LPSOL, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, SCIP_SOLORIGIN_UNKNOWN, SCIP_SOLORIGIN_ZERO, SCIP_UNKNOWN, SCIP_VARSTATUS_AGGREGATED, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_MULTAGGR, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIPABORT, SCIPboolarrayGetVal(), SCIPerrorMessage, SCIPsetInfinity(), SCIPsetIsInfinity(), SCIPsolGetVal(), SCIPsolIsOriginal(), SCIPvarGetAggrConstant(), SCIPvarGetAggrScalar(), SCIPvarGetAggrVar(), SCIPvarGetIndex(), SCIPvarGetLbGlobal(), SCIPvarGetLbLocal(), SCIPvarGetMultaggrConstant(), SCIPvarGetMultaggrNVars(), SCIPvarGetMultaggrScalars(), SCIPvarGetMultaggrVars(), SCIPvarGetNegationConstant(), SCIPvarGetNegationVar(), SCIPvarGetOrigvarSum(), SCIPvarGetStatus(), SCIPvarGetTransVar(), SCIPvarGetUbGlobal(), SCIPvarGetUbLocal(), SCIPvarIsTransformed(), solGetArrayVal(), SCIP_Sol::solorigin, and SCIP_Sol::valid.

Referenced by checkSolOrig(), SCIPgetSolVal(), SCIPgetSolVals(), SCIPnlrowGetSolActivity(), SCIPprimalTransformSol(), SCIProwGetLPSolCutoffDistance(), SCIProwGetSolActivity(), SCIPsolAdjustImplicitSolVals(), SCIPsolCheck(), SCIPsolGetVal(), SCIPsolMarkPartial(), SCIPsolPrint(), SCIPsolRecomputeObj(), SCIPsolRetransform(), SCIPsolsAreEqual(), SCIPsolUpdateVarsum(), SCIPvarGetClosestVlb(), SCIPvarGetClosestVub(), separateSolution(), and soltreeAddSol().

◆ SCIPsolGetRayVal()

SCIP_Real SCIPsolGetRayVal	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_VAR *	var
	)

returns value of variable in primal ray represented by primal CIP solution

Parameters

sol	primal CIP solution, representing a primal ray
set	global SCIP settings
stat	problem statistics data
var	variable to get value for

Definition at line 1468 of file sol.c.

References NULL, REALABS, scalars, SCIP_Real, SCIP_SOLORIGIN_ZERO, SCIP_UNKNOWN, SCIP_VARSTATUS_AGGREGATED, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_MULTAGGR, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIPABORT, SCIPerrorMessage, SCIPsetIsInfinity(), SCIPsolGetRayVal(), SCIPsolIsOriginal(), SCIPvarGetAggrScalar(), SCIPvarGetAggrVar(), SCIPvarGetLbGlobal(), SCIPvarGetLbLocal(), SCIPvarGetMultaggrNVars(), SCIPvarGetMultaggrScalars(), SCIPvarGetMultaggrVars(), SCIPvarGetNegationVar(), SCIPvarGetStatus(), SCIPvarGetTransVar(), SCIPvarGetUbGlobal(), SCIPvarGetUbLocal(), solGetArrayVal(), and SCIP_Sol::solorigin.

Referenced by SCIPgetPrimalRayVal(), SCIPsolGetRayVal(), and SCIPsolPrintRay().

◆ SCIPsolGetObj()

SCIP_Real SCIPsolGetObj	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob
	)

gets objective value of primal CIP solution in transformed problem

Parameters

sol	primal CIP solution
set	global SCIP settings
transprob	tranformed problem data
origprob	original problem data

Definition at line 1537 of file sol.c.

References NULL, SCIP_Sol::obj, SCIPprobInternObjval(), and SCIPsolIsOriginal().

Referenced by addCurrentSolution(), primalAddSol(), primalExistsSol(), primalSearchSolPos(), SCIPgetSolOrigObj(), SCIPgetSolTransObj(), SCIPprimalAddSol(), SCIPprimalRetransformSolutions(), SCIPprimalUpdateObjoffset(), SCIPprimalUpperboundIsSol(), SCIPprintMIPStart(), SCIPprintSol(), SCIPprintSolutionStatistics(), SCIPprintTransSol(), SCIPsetRelaxSolValsSol(), SCIPsolsAreEqual(), SCIPsolveCIP(), SCIPtransformProb(), solOfInterest(), and sortPrimalSols().

◆ SCIPsolUpdateVarObj()

void SCIPsolUpdateVarObj	(	SCIP_SOL *	sol,
		SCIP_VAR *	var,
		SCIP_Real	oldobj,
		SCIP_Real	newobj
	)

updates primal solutions after a change in a variable's objective value

Parameters

sol	primal CIP solution
var	problem variable
oldobj	old objective value
newobj	new objective value

Definition at line 1554 of file sol.c.

References NULL, SCIP_Sol::obj, SCIP_Real, SCIP_UNKNOWN, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPsolIsOriginal(), SCIPvarGetStatus(), and solGetArrayVal().

Referenced by SCIPprimalUpdateVarObj().

◆ SCIPsolMarkPartial()

SCIP_RETCODE SCIPsolMarkPartial	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_VAR **	vars,
		int	nvars
	)

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics
vars	problem variables
nvars	number of problem variables

Definition at line 1573 of file sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, SCIP_UNKNOWN, SCIPboolarraySetVal(), SCIPrealarraySetVal(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPsolGetVal(), SCIPvarGetIndex(), SCIPvarIsTransformed(), SCIPvarMarkNotDeletable(), SCIP_Sol::solorigin, TRUE, SCIP_Sol::valid, and SCIP_Sol::vals.

Referenced by readSolFile(), and readXmlSolFile().

◆ SCIPsolCheck()

SCIP_RETCODE SCIPsolCheck	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_MESSAGEHDLR *	messagehdlr,
		BMS_BLKMEM *	blkmem,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_Bool	printreason,
		SCIP_Bool	completely,
		SCIP_Bool	checkbounds,
		SCIP_Bool	checkintegrality,
		SCIP_Bool	checklprows,
		SCIP_Bool *	feasible
	)

checks primal CIP solution for feasibility

Note: The difference between SCIPsolCheck() and SCIPcheckSolOrig() is that modifiable constraints are handled differently. There might be some variables which do not have an original counter part (e.g. in branch-and-price). Therefore, modifiable constraints can not be double-checked in the original space.

Parameters

sol	primal CIP solution
set	global SCIP settings
messagehdlr	message handler
blkmem	block memory
stat	problem statistics
prob	transformed problem data
printreason	Should all reasons of violations be printed?
completely	Should all violations be checked?
checkbounds	Should the bounds of the variables be checked?
checkintegrality	Has integrality to be checked?
checklprows	Do constraints represented by rows in the current LP have to be checked?
feasible	stores whether solution is feasible

Definition at line 1638 of file sol.c.

References FALSE, h, SCIP_Sol::hasinfval, MAX, SCIP_Sol::nodenum, NULL, SCIP_Prob::nvars, SCIP_Sol::obj, SCIP_CALL, SCIP_FEASIBLE, SCIP_OKAY, SCIP_Real, SCIP_UNKNOWN, SCIPconshdlrCheck(), SCIPconshdlrGetName(), SCIPdebugPrintf, SCIPmessagePrintInfo(), SCIPsetDebugMsg, SCIPsetDebugMsgPrint, SCIPsetIsFeasGT(), SCIPsetIsFeasLT(), SCIPsetIsGE(), SCIPsetIsGT(), SCIPsetIsInfinity(), SCIPsetIsLE(), SCIPsetIsLT(), SCIPsolGetVal(), SCIPsolIsOriginal(), SCIPsolResetViolations(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetUbGlobal(), SCIPvarGetUnchangedObj(), SCIP_Sol::solorigin, TRUE, and SCIP_Prob::vars.

Referenced by primalAddSol(), SCIPcheckSol(), SCIPprimalTrySol(), SCIPprimalTrySolFree(), and solveNodeLP().

◆ SCIPsolRound()

SCIP_RETCODE SCIPsolRound	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_TREE *	tree,
		SCIP_Bool *	success
	)

try to round given solution

Parameters

sol	primal solution
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
tree	branch and bound tree
success	pointer to store whether rounding was successful

Definition at line 1759 of file sol.c.

References SCIP_Sol::lpcount, SCIP_Stat::lpcount, SCIP_Prob::nbinvars, SCIP_Prob::nintvars, NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_LPSOL, SCIP_UNKNOWN, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPboolarrayGetVal(), SCIPsetFeasCeil(), SCIPsetFeasFloor(), SCIPsetIsFeasIntegral(), SCIPsolIsOriginal(), SCIPsolSetVal(), SCIPvarGetIndex(), SCIPvarGetStatus(), SCIPvarGetUnchangedObj(), SCIPvarMayRoundDown(), SCIPvarMayRoundUp(), solGetArrayVal(), SCIP_Sol::solorigin, SCIP_Prob::transformed, SCIP_Sol::valid, and SCIP_Prob::vars.

Referenced by SCIProundSol().

◆ SCIPsolUpdateVarsum()

void SCIPsolUpdateVarsum	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_Real	weight
	)

updates the solution value sums in variables by adding the value in the given solution

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
prob	transformed problem data
weight	weight of solution in weighted average

Definition at line 1831 of file sol.c.

References NULL, SCIP_Prob::nvars, SCIP_Var::primsolavg, SCIP_Real, SCIP_UNKNOWN, SCIPsolGetVal(), SCIPsolIsOriginal(), and SCIP_Prob::vars.

Referenced by primalAddSol().

◆ SCIPsolRetransform()

SCIP_RETCODE SCIPsolRetransform	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	origprob,
		SCIP_PROB *	transprob,
		SCIP_Bool *	hasinfval
	)

retransforms solution to original problem space

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
origprob	original problem
transprob	transformed problem
hasinfval	pointer to store whether the solution has infinite values

Definition at line 1859 of file sol.c.

References FALSE, NULL, SCIP_Prob::nvars, SCIP_Sol::obj, SCIP_Prob::objoffset, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_ZERO, SCIP_UNKNOWN, SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPsetInfinity(), SCIPsetIsInfinity(), SCIPsetIsZero(), SCIPsolGetVal(), SCIPvarGetActiveRepresentatives(), SCIPvarGetObj(), SCIPvarGetProbindex(), SCIPvarGetUnchangedObj(), solClearArrays(), SCIP_Sol::solorigin, solSetArrayVal(), SCIP_Prob::transformed, TRUE, and SCIP_Prob::vars.

Referenced by freeTransform(), SCIPaddSol(), SCIPaddSolFree(), SCIPprimalRetransformSolutions(), SCIPretransformSol(), SCIPsolve(), SCIPtrySol(), and SCIPtrySolFree().

◆ SCIPsolRecomputeObj()

void SCIPsolRecomputeObj	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	origprob
	)

recomputes the objective value of an original solution, e.g., when transferring solutions from the solution pool (objective coefficients might have changed in the meantime)

Parameters

sol	primal CIP solution
set	global SCIP settings
stat	problem statistics data
origprob	original problem

Definition at line 1986 of file sol.c.

References NULL, SCIP_Prob::nvars, SCIP_Sol::obj, SCIP_Real, SCIP_UNKNOWN, SCIPprobGetObjoffset(), SCIPsetInfinity(), SCIPsetIsInfinity(), SCIPsetIsZero(), SCIPsolGetVal(), SCIPsolIsOriginal(), SCIPvarGetUnchangedObj(), and SCIP_Prob::vars.

Referenced by SCIPrecomputeSolObj(), and SCIPtransformProb().

◆ SCIPsolsAreEqual()

SCIP_Bool SCIPsolsAreEqual	(	SCIP_SOL *	sol1,
		SCIP_SOL *	sol2,
		SCIP_SET *	set,
		SCIP_STAT *	stat,
		SCIP_PROB *	origprob,
		SCIP_PROB *	transprob
	)

returns whether the given solutions in transformed space are equal

returns whether the given solutions are equal

Parameters

sol1	first primal CIP solution
sol2	second primal CIP solution
set	global SCIP settings
stat	problem statistics data
origprob	original problem
transprob	transformed problem after presolve, or NULL if both solution are defined in the original problem space

Definition at line 2021 of file sol.c.

References FALSE, NULL, SCIP_Prob::nvars, SCIP_Sol::obj, SCIP_Bool, SCIP_Real, SCIPsetIsEQ(), SCIPsetIsInfinity(), SCIPsolGetObj(), SCIPsolGetVal(), SCIPsolIsOriginal(), TRUE, and SCIP_Prob::vars.

Referenced by primalExistsOrigSol(), primalExistsSol(), and SCIPareSolsEqual().

◆ SCIPsolPrint()

SCIP_RETCODE SCIPsolPrint	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_MESSAGEHDLR *	messagehdlr,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_PROB *	transprob,
		FILE *	file,
		SCIP_Bool	mipstart,
		SCIP_Bool	printzeros
	)

outputs non-zero elements of solution to file stream

Parameters

sol	primal CIP solution
set	global SCIP settings
messagehdlr	message handler
stat	problem statistics data
prob	problem data (original or transformed)
transprob	transformed problem data or NULL (to display priced variables)
file	output file (or NULL for standard output)
mipstart	should only discrete variables be printed?
printzeros	should variables set to zero be printed?

Definition at line 2086 of file sol.c.

References SCIP_Prob::fixedvars, SCIP_Prob::nfixedvars, NULL, SCIP_Prob::nvars, SCIP_OKAY, SCIP_Real, SCIP_SOLORIGIN_PARTIAL, SCIP_UNKNOWN, SCIPmessageFPrintInfo(), SCIPsetIsInfinity(), SCIPsetIsZero(), SCIPsolGetVal(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPvarGetName(), SCIPvarGetUnchangedObj(), SCIPvarIsIntegral(), SCIPvarIsTransformedOrigvar(), SCIP_Sol::solorigin, SCIP_Prob::transformed, and SCIP_Prob::vars.

Referenced by primalAddSol(), SCIPprintMIPStart(), SCIPprintSol(), SCIPprintTransSol(), and SCIPsolve().

◆ SCIPsolPrintRay()

SCIP_RETCODE SCIPsolPrintRay	(	SCIP_SOL *	sol,
		SCIP_SET *	set,
		SCIP_MESSAGEHDLR *	messagehdlr,
		SCIP_STAT *	stat,
		SCIP_PROB *	prob,
		SCIP_PROB *	transprob,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs non-zero elements of solution representing a ray to file stream

Parameters

sol	primal CIP solution
set	global SCIP settings
messagehdlr	message handler
stat	problem statistics data
prob	problem data (original or transformed)
transprob	transformed problem data or NULL (to display priced variables)
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?