Detailed Description

This page contains a list of all pricers, pricing solvers and the pricing jobs and problem structures.

Modules
	Pricers
	This page contains a list of all pricers which are currently available.

	Pricing Solvers
	This page contains a list of all pricing solvers which are currently available.

Files
file	solver.h
	public methods for GCG pricing solvers

SCIP_EXPORT SCIP_RETCODE	GCGsolverCreate (SCIP scip, GCG_SOLVER solver, const char name, const char desc, int priority, SCIP_Bool heurenabled, SCIP_Bool exactenabled, GCG_DECL_SOLVERUPDATE((solverupdate)), GCG_DECL_SOLVERSOLVE((solversolve)), GCG_DECL_SOLVERSOLVEHEUR((solveheur)), GCG_DECL_SOLVERFREE((solverfree)), GCG_DECL_SOLVERINIT((solverinit)), GCG_DECL_SOLVEREXIT((solverexit)), GCG_DECL_SOLVERINITSOL((solverinitsol)), GCG_DECL_SOLVEREXITSOL((solverexitsol)), GCG_SOLVERDATA solverdata)

SCIP_EXPORT SCIP_RETCODE	GCGsolverFree (SCIP scip, GCG_SOLVER *solver)

SCIP_EXPORT SCIP_RETCODE	GCGsolverInit (SCIP scip, GCG_SOLVER solver)

SCIP_EXPORT SCIP_RETCODE	GCGsolverExit (SCIP scip, GCG_SOLVER solver)

SCIP_EXPORT SCIP_RETCODE	GCGsolverInitsol (SCIP scip, GCG_SOLVER solver)

SCIP_EXPORT SCIP_RETCODE	GCGsolverExitsol (SCIP scip, GCG_SOLVER solver)

SCIP_EXPORT SCIP_RETCODE	GCGsolverUpdate (SCIP pricingprob, GCG_SOLVER solver, int probnr, SCIP_Bool varobjschanged, SCIP_Bool varbndschanged, SCIP_Bool consschanged)

SCIP_EXPORT SCIP_RETCODE	GCGsolverSolve (SCIP scip, SCIP pricingprob, GCG_SOLVER solver, SCIP_Bool redcost, SCIP_Bool heuristic, int probnr, SCIP_Real dualsolconv, SCIP_Real lowerbound, GCG_PRICINGSTATUS status, SCIP_Bool solved)

Function Documentation

◆ GCGsolverCreate()

SCIP_EXPORT SCIP_RETCODE GCGsolverCreate	(	SCIP *	scip,
		GCG_SOLVER **	solver,
		const char *	name,
		const char *	desc,
		int	priority,
		SCIP_Bool	heurenabled,
		SCIP_Bool	exactenabled,
		GCG_DECL_SOLVERUPDATE((*solverupdate))	,
		GCG_DECL_SOLVERSOLVE((*solversolve))	,
		GCG_DECL_SOLVERSOLVEHEUR((*solveheur))	,
		GCG_DECL_SOLVERFREE((*solverfree))	,
		GCG_DECL_SOLVERINIT((*solverinit))	,
		GCG_DECL_SOLVEREXIT((*solverexit))	,
		GCG_DECL_SOLVERINITSOL((*solverinitsol))	,
		GCG_DECL_SOLVEREXITSOL((*solverexitsol))	,
		GCG_SOLVERDATA *	solverdata
	)

creates a GCG pricing solver

Definition at line 59 of file solver.c.

References GCGmasterGetOrigprob().

Referenced by GCGpricerIncludeSolver().

◆ GCGsolverFree()

SCIP_EXPORT SCIP_RETCODE GCGsolverFree	(	SCIP *	scip,
		GCG_SOLVER **	solver
	)

calls destructor and frees memory of GCG pricing solver

Definition at line 144 of file solver.c.

◆ GCGsolverInit()

SCIP_EXPORT SCIP_RETCODE GCGsolverInit	(	SCIP *	scip,
		GCG_SOLVER *	solver
	)

initializes GCG pricing solver

Definition at line 172 of file solver.c.

References GCG_Solver::heurfarkascalls, GCG_Solver::heurfarkasclock, GCG_Solver::heurredcostcalls, GCG_Solver::heurredcostclock, GCG_Solver::optfarkascalls, GCG_Solver::optfarkasclock, GCG_Solver::optredcostcalls, and GCG_Solver::optredcostclock.

◆ GCGsolverExit()

SCIP_EXPORT SCIP_RETCODE GCGsolverExit	(	SCIP *	scip,
		GCG_SOLVER *	solver
	)

calls exit method of GCG pricing solver

Definition at line 206 of file solver.c.

◆ GCGsolverInitsol()

SCIP_EXPORT SCIP_RETCODE GCGsolverInitsol	(	SCIP *	scip,
		GCG_SOLVER *	solver
	)

calls solving process initialization method of GCG pricing solver

Definition at line 223 of file solver.c.

◆ GCGsolverExitsol()

SCIP_EXPORT SCIP_RETCODE GCGsolverExitsol	(	SCIP *	scip,
		GCG_SOLVER *	solver
	)

calls solving process deinitialization method of GCG pricing solver

Definition at line 240 of file solver.c.

◆ GCGsolverUpdate()

SCIP_EXPORT SCIP_RETCODE GCGsolverUpdate	(	SCIP *	pricingprob,
		GCG_SOLVER *	solver,
		int	probnr,
		SCIP_Bool	varobjschanged,
		SCIP_Bool	varbndschanged,
		SCIP_Bool	consschanged
	)

calls update method of GCG pricing solver

Definition at line 257 of file solver.c.

Referenced by GCGsetPricingObjs(), ObjPricerGcg::priceNewVariables(), and ObjPricerGcg::pricingLoop().

◆ GCGsolverSolve()

SCIP_EXPORT SCIP_RETCODE GCGsolverSolve	(	SCIP *	scip,
		SCIP *	pricingprob,
		GCG_SOLVER *	solver,
		SCIP_Bool	redcost,
		SCIP_Bool	heuristic,
		int	probnr,
		SCIP_Real	dualsolconv,
		SCIP_Real *	lowerbound,
		GCG_PRICINGSTATUS *	status,
		SCIP_Bool *	solved
	)

calls heuristic or exact solving method of GCG pricing solver

Note: This method has to be threadsafe!

Definition at line 280 of file solver.c.

References GCG_Solver::exactenabled, GCG_PRICINGSTATUS_NOTAPPLICABLE, GCG_Solver::heurenabled, GCG_Solver::heurfarkascalls, GCG_Solver::heurfarkasclock, GCG_Solver::heurredcostcalls, GCG_Solver::heurredcostclock, GCG_Solver::optfarkascalls, GCG_Solver::optfarkasclock, GCG_Solver::optredcostcalls, and GCG_Solver::optredcostclock.

GCG