heur_trysol.h File Reference

Detailed Description

primal heuristic that tries a given solution

Author

Marc Pfetsch

This heuristic takes a solution from somewhere else via the function SCIPheurPassSolTrySol(). It then tries to commit this solution. It is mainly used by cons_indicator, which tries to correct a given solution, but cannot directly submit this solution, because it is a constraint handler and not a heuristic.

Definition in file heur_trysol.h.

#include "scip/scip.h"

Go to the source code of this file.

Functions
SCIP_RETCODE	SCIPincludeHeurTrySol (SCIP *scip)
SCIP_RETCODE	SCIPheurPassSolTrySol (SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol)
SCIP_RETCODE	SCIPheurPassSolAddSol (SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol)

Function Documentation

SCIP_RETCODE SCIPincludeHeurTrySol

(

SCIP *

scip

)

creates the trysol primal heuristic and includes it in SCIP

Parameters

scip	SCIP data structure

Definition at line 206 of file heur_trysol.c.

References FALSE, HEUR_DESC, HEUR_DISPCHAR, HEUR_FREQ, HEUR_FREQOFS, HEUR_MAXDEPTH, HEUR_NAME, HEUR_PRIORITY, HEUR_TIMING, HEUR_USESSUBSCIP, NULL, SCIP_CALL, SCIP_OKAY, SCIPallocMemory, SCIPincludeHeurBasic(), SCIPsetHeurCopy(), SCIPsetHeurExit(), and SCIPsetHeurFree().

Referenced by SCIP_DECL_HEURCOPY(), and SCIPincludeDefaultPlugins().

SCIP_RETCODE SCIPheurPassSolTrySol	(	SCIP *	scip,
		SCIP_HEUR *	heur,
		SCIP_SOL *	sol
	)

pass solution to trysol heuristic

Parameters

scip	SCIP data structure
heur	trysol heuristic
sol	solution to be passed

Definition at line 236 of file heur_trysol.c.

References HEUR_NAME, NULL, SCIP_CALL, SCIP_OBJSENSE_MAXIMIZE, SCIP_OKAY, SCIPcreateSolCopy(), SCIPdebugMessage, SCIPfreeSol(), SCIPgetObjsense(), SCIPgetSolOrigObj(), SCIPheurGetData(), SCIPheurGetName(), SCIPisGT(), SCIPisLT(), SCIPsolSetHeur(), and SCIPunlinkSol().

Referenced by proposeFeasibleSolution(), SCIP_DECL_CONSCHECK(), and SCIP_DECL_CONSSEPALP().

SCIP_RETCODE SCIPheurPassSolAddSol	(	SCIP *	scip,
		SCIP_HEUR *	heur,
		SCIP_SOL *	sol
	)

pass solution to trysol heuristic which just gets added (without checking feasibility

Parameters

scip	SCIP data structure
heur	trysol heuristic
sol	solution to be passed

Definition at line 277 of file heur_trysol.c.

References HEUR_NAME, NULL, SCIP_CALL, SCIP_OBJSENSE_MAXIMIZE, SCIP_OKAY, SCIPcreateSolCopy(), SCIPdebugMessage, SCIPfreeSol(), SCIPgetObjsense(), SCIPgetSolOrigObj(), SCIPheurGetData(), SCIPheurGetName(), SCIPisGT(), SCIPisLT(), SCIPsolSetHeur(), and SCIPunlinkSol().

Referenced by checkSystemGF2().