SCIP
Solving Constraint Integer Programs
Solving Constraint Integer Programs
methods to create and change primal solutions of SCIP
| SCIP_SOLORIGIN SCIPsolGetOrigin | ( | SCIP_SOL * | sol | ) |
gets origin of solution
| sol | primal CIP solution |
Definition at line 2455 of file sol.c.
References SCIP_Sol::solorigin.
Referenced by DECL_VARFIXINGS(), SCIPprimalAddOrigObjoffset(), SCIPprimalRetransformSolutions(), SCIPretransformSol(), and tightenVariables().
returns whether the given solution is defined on original variables
| sol | primal CIP solution |
Definition at line 2465 of file sol.c.
References SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, and SCIP_Sol::solorigin.
Referenced by freeTransform(), origsolOfInterest(), primalAddSol(), primalExistsSol(), primalSearchSolPos(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIPaddSol(), SCIPaddSolFree(), SCIPapplyProximity(), SCIPcheckSol(), SCIPgetSolOrigObj(), SCIPgetSolVarsData(), SCIPincSolVal(), SCIPprimalAddOrigSol(), SCIPprimalAddOrigSolFree(), SCIPprimalTransformSol(), SCIPprimalUpdateObjoffset(), SCIPprimalUpdateVarObj(), SCIPprintBestTransSol(), SCIPprintMIPStart(), SCIPprintSol(), SCIPprintTransSol(), SCIProundSol(), SCIPsetSolVal(), SCIPsetSolVals(), SCIPsolCheck(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolGetRayVal(), SCIPsolGetVal(), SCIPsolIncVal(), SCIPsolPrint(), SCIPsolPrintRay(), SCIPsolRecomputeObj(), SCIPsolRound(), SCIPsolsAreEqual(), SCIPsolSetVal(), SCIPsolTransform(), SCIPsolUnlink(), SCIPsolUpdateVarObj(), SCIPsolUpdateVarsum(), SCIPsolve(), SCIPtrySol(), SCIPtrySolFree(), separateSolution(), and transformSols().
returns whether the given solution is partial
returns whether the given solution is defined on original variables and containes unknown solution values
| sol | primal CIP solution |
Definition at line 2475 of file sol.c.
References SCIP_SOLORIGIN_PARTIAL, and SCIP_Sol::solorigin.
Referenced by readSol(), readSolFile(), readXmlSolFile(), SCIPcheckSol(), SCIPcheckSolOrig(), SCIPprimalAddOrigSol(), SCIPprimalAddOrigSolFree(), SCIPprimalAddSol(), SCIPprintMIPStart(), SCIPprintSol(), SCIPsolPrint(), SCIPsolSetVal(), SCIPtrySol(), and SCIPtrySolFree().
gets objective value of primal CIP solution which lives in the original problem space
| sol | primal CIP solution |
Definition at line 2485 of file sol.c.
References SCIP_Sol::obj, and SCIPsolIsOriginal().
Referenced by primalAddOrigSol(), primalExistsOrigSol(), primalSearchOrigSolPos(), SCIPgetSolOrigObj(), SCIPprimalAddOrigObjoffset(), SCIPprimalTransformSol(), SCIPprintMIPStart(), SCIPprintSol(), solveAndEvalSubscip(), and storeSolution().
gets clock time, when this solution was found
| sol | primal CIP solution |
Definition at line 2508 of file sol.c.
References SCIP_Sol::time.
Referenced by primalAddSol(), SCIPgetSolTime(), and SCIPprintSolutionStatistics().
| int SCIPsolGetRunnum | ( | SCIP_SOL * | sol | ) |
gets branch and bound run number, where this solution was found
| sol | primal CIP solution |
Definition at line 2518 of file sol.c.
References SCIP_Sol::runnum.
Referenced by primalAddSol(), SCIPgetSolRunnum(), and SCIPprintSolutionStatistics().
| SCIP_Longint SCIPsolGetNodenum | ( | SCIP_SOL * | sol | ) |
gets node number of the specific branch and bound run, where this solution was found
gets node number, where this solution was found
| sol | primal CIP solution |
Definition at line 2528 of file sol.c.
References SCIP_Sol::nodenum.
Referenced by determineVariableFixings(), primalAddSol(), SCIP_DECL_HEUREXEC(), SCIPapplyProximity(), SCIPgetSolNodenum(), SCIPprintSolutionStatistics(), SCIPsolve(), setupAndSolve(), setupAndSolveSubscip(), and solHasNewSource().
| int SCIPsolGetDepth | ( | SCIP_SOL * | sol | ) |
gets node's depth, where this solution was found
| sol | primal CIP solution |
Definition at line 2538 of file sol.c.
References SCIP_Sol::depth.
Referenced by primalAddSol(), and SCIPprintSolutionStatistics().
gets heuristic, that found this solution (or NULL if it's from the tree)
| sol | primal CIP solution |
Definition at line 2548 of file sol.c.
References SCIP_Sol::heur.
Referenced by checkSolution(), determineVariableFixings(), presolve(), presolveRound(), primalAddSol(), proposeFeasibleSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyProximity(), SCIPgetSolHeur(), SCIPprimalTransformSol(), SCIPprintSolutionStatistics(), SCIPreoptAddSol(), SCIPsolve(), SCIPupdateStartpointHeurSubNlp(), SCIPvisualFoundSolution(), solHasNewSource(), soltreeAddSol(), solveComponent(), and solveSubNLP().
informs the solution that it now belongs to the given primal heuristic
| sol | primal CIP solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 2589 of file sol.c.
References SCIP_Sol::heur.
Referenced by createSolFromNLP(), createSolFromSubScipSol(), primalLinkCurrentSol(), SCIP_DECL_HEUREXEC(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPheurSyncPassSol(), SCIPupdateStartpointHeurSubNlp(), and solveComponent().
| int SCIPsolGetIndex | ( | SCIP_SOL * | sol | ) |
returns unique index of given solution
| sol | primal CIP solution |
Definition at line 2579 of file sol.c.
References SCIP_Sol::index.
Referenced by createNewSol(), execRelpscost(), SCIP_DECL_HEUREXEC(), SCIPapplyProximity(), SCIPIsConcurrentSolNew(), setupAndSolveSubscipCrossover(), solveComponent(), and solveSubscipLpface().
get maximum absolute bound violation of solution
| sol | primal CIP solution |
Definition at line 2361 of file sol.c.
References SCIP_Viol::absviolbounds, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
get maximum relative bound violation of solution
| sol | primal CIP solution |
Definition at line 2371 of file sol.c.
References SCIP_Viol::relviolbounds, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
get maximum absolute integrality violation of solution
| sol | primal CIP solution |
Definition at line 2381 of file sol.c.
References SCIP_Viol::absviolintegrality, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
get maximum absolute LP row violation of solution
| sol | primal CIP solution |
Definition at line 2391 of file sol.c.
References SCIP_Viol::absviollprows, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
get maximum relative LP row violation of solution
| sol | primal CIP solution |
Definition at line 2401 of file sol.c.
References SCIP_Viol::relviollprows, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
get maximum absolute constraint violation of solution
| sol | primal CIP solution |
Definition at line 2411 of file sol.c.
References SCIP_Viol::absviolcons, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
get maximum relative constraint violation of solution
| sol | primal CIP solution |
Definition at line 2421 of file sol.c.
References SCIP_Viol::relviolcons, and SCIP_Sol::viol.
Referenced by SCIP_DECL_DIALOGEXEC().
| SCIP_RETCODE SCIPcreateSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to zero
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 37872 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::origprimal, Scip::origprob, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPerrorMessage, SCIPsolCreate(), SCIPsolCreateOriginal(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::tree, and TRUE.
Referenced by applyBoundHeur(), applyRepair(), applyVbounds(), checkSystemGF2(), computeInteriorPoint(), createNewSol(), createNewSols(), createSolFromNLP(), createSolFromSubScipSol(), DECL_VARFIXINGS(), generateCloseCutPoint(), heurExec(), initProblem(), processNlRow(), readSol(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINIT(), SCIPcomputeLPRelIntPoint(), separateAlternativeProofs(), separateCuts(), setupAndSolve(), solveNLP(), solveSubproblem(), transferSolution(), tryOneOpt(), and trySolCandidate().
| SCIP_RETCODE SCIPcreateLPSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to the current LP solution
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 37914 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::mem, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPsolCreateLPSol(), SCIPtreeHasCurrentNodeLP(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by performStrongbranchWithPropagation(), proposeFeasibleSolution(), SCIP_DECL_CONSCHECK(), and SCIP_DECL_CONSENFOLP().
| SCIP_RETCODE SCIPcreateNLPSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to the current NLP solution
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 37942 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::nlp, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPisNLPConstructed(), SCIPnlpHasSolution(), SCIPsolCreateNLPSol(), Scip::set, Scip::stat, Scip::tree, and TRUE.
Referenced by SCIP_DECL_CONSSEPALP(), and SCIP_DECL_SEPAEXECLP().
| SCIP_RETCODE SCIPcreateRelaxSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to the current relaxation solution
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 37977 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::primal, SCIP_Mem::probmem, Scip::relaxation, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPrelaxationIsSolValid(), SCIPsolCreateRelaxSol(), Scip::set, Scip::stat, Scip::tree, and TRUE.
| SCIP_RETCODE SCIPcreatePseudoSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to the current pseudo solution
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 38004 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::mem, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIPsolCreatePseudoSol(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by SCIP_DECL_CONSENFOPS().
| SCIP_RETCODE SCIPcreateCurrentSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to the current LP or pseudo solution, depending on whether the LP was solved at the current node
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 38027 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::mem, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIPsolCreateCurrentSol(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by SCIP_DECL_SEPAEXECLP(), SCIPcreateSolCopy(), and SCIPcreateSolCopyOrig().
| SCIP_RETCODE SCIPcreatePartialSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a partial primal solution, initialized to unknown values
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 38049 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::origprimal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIPsolCreatePartial(), Scip::set, Scip::stat, and TRUE.
Referenced by readMst().
| SCIP_RETCODE SCIPcreateUnknownSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution, initialized to unknown values
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 38077 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIPsolCreateUnknown(), Scip::set, Scip::stat, Scip::tree, and TRUE.
| SCIP_RETCODE SCIPcreateOrigSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_HEUR * | heur | ||
| ) |
creates a primal solution living in the original problem space, initialized to zero; a solution in original space allows to set original variables to values that would be invalid in the transformed problem due to preprocessing fixings or aggregations
creates a primal solution living in the original problem space, initialized to zero; a solution in original space allows to set original variables to values that would be invalid in the transformed problem due to preprocessing fixings or aggregations
| scip | SCIP data structure |
| sol | pointer to store the solution |
| heur | heuristic that found the solution (or NULL if it's from the tree) |
Definition at line 38109 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::origprimal, Scip::origprob, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPerrorMessage, SCIPsolCreateOriginal(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::tree, and TRUE.
Referenced by componentSetupWorkingSol(), createSolFromSubScipSol(), fixDiscreteVars(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIPcreateFiniteSolCopy(), setupAndSolveSubscipOneopt(), and solveAndEvalSubscip().
| SCIP_RETCODE SCIPcreateSolCopy | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_SOL * | sourcesol | ||
| ) |
creates a copy of a primal solution; note that a copy of a linked solution is also linked and needs to be unlinked if it should stay unaffected from changes in the LP or pseudo solution
creates a copy of a primal solution; note that a copy of a linked solution is also linked and needs to be unlinked if it should stay unaffected from changes in the LP or pseudo solution
| scip | SCIP data structure |
| sol | pointer to store the solution |
| sourcesol | primal CIP solution to copy |
Definition at line 38162 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIPcreateCurrentSol(), SCIPsolCopy(), Scip::set, Scip::stat, and TRUE.
Referenced by enforceCardinality(), fromCommandLine(), proposeFeasibleSolution(), sampleRandomPoints(), SCIP_DECL_CONSCHECK(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddSol(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPsetBasePointClosecuts(), and SCIPupdateStartpointHeurSubNlp().
| SCIP_RETCODE SCIPcreateSolCopyOrig | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_SOL * | sourcesol | ||
| ) |
creates a copy of a solution in the original primal solution space
| scip | SCIP data structure |
| sol | pointer to store the solution |
| sourcesol | primal CIP solution to copy |
Definition at line 38202 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::origprimal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPcreateCurrentSol(), SCIPsolCopy(), Scip::set, SCIP_Set::stage, Scip::stat, and TRUE.
| SCIP_RETCODE SCIPcreateFiniteSolCopy | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_SOL * | sourcesol, | ||
| SCIP_Bool * | success | ||
| ) |
creates a copy of a primal solution, thereby replacing infinite fixings of variables by finite values; the copy is always defined in the original variable space; success indicates whether the objective value of the solution was changed by removing infinite values
| scip | SCIP data structure |
| sol | pointer to store the solution |
| sourcesol | primal CIP solution to copy |
| success | does the finite solution have the same objective value? |
Definition at line 38393 of file scip.c.
References checkStage(), FALSE, REALABS, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_FIXED, SCIPallocBufferArray, SCIPcreate(), SCIPcreateOrigSol(), SCIPdebugMsg, SCIPepsilon(), SCIPfree(), SCIPfreeBufferArray, SCIPgetFixedVars(), SCIPgetNFixedVars(), SCIPgetOrigVarsData(), SCIPgetSolOrigObj(), SCIPgetSolVals(), SCIPisEQ(), SCIPisInfinity(), SCIPprintSol(), SCIPsetSolVal(), SCIPvarGetLbGlobal(), SCIPvarGetLbOriginal(), SCIPvarGetName(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarGetUbOriginal(), setupAndSolveFiniteSolSubscip(), and TRUE.
Referenced by freeTransform(), and SCIP_DECL_DIALOGEXEC().
| SCIP_RETCODE SCIPfreeSol | ( | SCIP * | scip, |
| SCIP_SOL ** | sol | ||
| ) |
frees primal CIP solution
| scip | SCIP data structure |
| sol | pointer to the solution |
Definition at line 38529 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::origprimal, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPerrorMessage, SCIPsolFree(), Scip::set, SCIP_Set::stage, and TRUE.
Referenced by applyBoundHeur(), applyHeur(), applyRepair(), applyVbounds(), checkSystemGF2(), createCoveringProblem(), createNewSol(), createSolFromSubScipSol(), DECL_VARFIXINGS(), enforceCardinality(), freeComponent(), freeMemory(), freeProblem(), fromCommandLine(), heurExec(), performStrongbranchWithPropagation(), proposeFeasibleSolution(), readMst(), readSol(), sampleRandomPoints(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXITSOL(), SCIPapplyHeurDualval(), SCIPapplyUndercover(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPheurSyncPassSol(), SCIPsetBasePointClosecuts(), SCIPupdateStartpointHeurSubNlp(), separateAlternativeProofs(), separateCuts(), setupAndSolve(), solveAndEvalSubscip(), solveComponent(), solveNLP(), solveSubNLP(), solveSubproblem(), storeSolution(), and transferSolution().
| SCIP_RETCODE SCIPlinkLPSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
links a primal solution to the current LP solution
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38570 of file scip.c.
References checkStage(), FALSE, Scip::lp, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPlpIsSolved(), SCIPsolLinkLPSol(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by applyBoundHeur(), applyVbounds(), getSolFromFacet(), performLPRandRounding(), performLPSimpleRounding(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), solveLp(), tryOneOpt(), and trySolCandidate().
| SCIP_RETCODE SCIPlinkNLPSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
links a primal solution to the current NLP solution
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38596 of file scip.c.
References checkStage(), FALSE, Scip::nlp, SCIP_CALL, SCIP_INVALIDCALL, SCIP_NLPSOLSTAT_FEASIBLE, SCIP_OKAY, SCIPerrorMessage, SCIPnlpGetSolstat(), SCIPsolLinkNLPSol(), Scip::stat, Scip::tree, and TRUE.
| SCIP_RETCODE SCIPlinkRelaxSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
links a primal solution to the current relaxation solution
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38628 of file scip.c.
References checkStage(), FALSE, Scip::relaxation, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPrelaxationIsSolValid(), SCIPsolLinkRelaxSol(), Scip::set, Scip::stat, Scip::tree, and TRUE.
Referenced by performRelaxSimpleRounding().
| SCIP_RETCODE SCIPlinkPseudoSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
links a primal solution to the current pseudo solution
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38655 of file scip.c.
References checkStage(), FALSE, Scip::lp, SCIP_CALL, SCIP_OKAY, SCIPsolLinkPseudoSol(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
| SCIP_RETCODE SCIPlinkCurrentSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
links a primal solution to the current LP or pseudo solution
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38675 of file scip.c.
References checkStage(), FALSE, Scip::lp, SCIP_CALL, SCIP_OKAY, SCIPsolLinkCurrentSol(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by processNlRow().
| SCIP_RETCODE SCIPclearSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
clears a primal solution
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38706 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, SCIPsolClear(), Scip::stat, Scip::tree, and TRUE.
| SCIP_RETCODE SCIPunlinkSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
stores solution values of variables in solution's own array
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 38734 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, SCIPsolUnlink(), Scip::set, Scip::transprob, and TRUE.
Referenced by proposeFeasibleSolution(), SCIP_DECL_CONSCHECK(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPperformGenericDivingAlgorithm(), SCIPretransformSol(), and SCIPupdateStartpointHeurSubNlp().
| SCIP_RETCODE SCIPsetSolVal | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_VAR * | var, | ||
| SCIP_Real | val | ||
| ) |
sets value of variable in primal CIP solution
| scip | SCIP data structure |
| sol | primal solution |
| var | variable to add to solution |
| val | solution value of variable |
Definition at line 38765 of file scip.c.
References checkStage(), FALSE, SCIP_Var::scip, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPsolIsOriginal(), SCIPsolSetVal(), SCIPvarGetName(), SCIPvarIsTransformed(), Scip::set, Scip::stat, Scip::tree, and TRUE.
Referenced by applyRepair(), buildConvexCombination(), checkCands(), checkSystemGF2(), componentSetupWorkingSol(), computeInteriorPoint(), createNewSol(), createSolFromNLP(), createSolFromSubScipSol(), DECL_VARFIXINGS(), fixDiscreteVars(), generateCloseCutPoint(), getNLPFracVars(), getSolFromFacet(), heurExec(), improvePoint(), initProblem(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), optimize(), performRandRounding(), performSimpleRounding(), polishPrimalSolution(), polishSolution(), proposeFeasibleSolution(), readSolFile(), readXmlSolFile(), sampleRandomPoints(), SCIP_DECL_HEUREXEC(), SCIPapplyHeurDualval(), SCIPcomputeLPRelIntPoint(), SCIPcreateFiniteSolCopy(), SCIPmakeIndicatorFeasible(), separateCuts(), setupAndSolve(), solveAndEvalSubscip(), solveComponent(), solveNLP(), updateSlacks(), and updateVariableRounding().
| SCIP_RETCODE SCIPsetSolVals | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| int | nvars, | ||
| SCIP_VAR ** | vars, | ||
| SCIP_Real * | vals | ||
| ) |
sets values of multiple variables in primal CIP solution
| scip | SCIP data structure |
| sol | primal solution |
| nvars | number of variables to set solution value for |
| vars | array with variables to add to solution |
| vals | array with solution values of variables |
Definition at line 38807 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPsolIsOriginal(), SCIPsolSetVal(), SCIPvarGetName(), SCIPvarIsTransformed(), Scip::set, Scip::stat, Scip::tree, and TRUE.
Referenced by copySol(), createNewSol(), createNewSols(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCREAD(), setupAndSolveSubscipOneopt(), and transferSolution().
| SCIP_RETCODE SCIPincSolVal | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_VAR * | var, | ||
| SCIP_Real | incval | ||
| ) |
increases value of variable in primal CIP solution
| scip | SCIP data structure |
| sol | primal solution |
| var | variable to increase solution value for |
| incval | increment for solution value of variable |
Definition at line 38862 of file scip.c.
References checkStage(), FALSE, SCIP_Var::scip, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPsolIncVal(), SCIPsolIsOriginal(), SCIPvarGetName(), SCIPvarIsTransformed(), Scip::set, Scip::stat, Scip::tree, and TRUE.
Referenced by proposeFeasibleSolution().
returns value of variable in primal CIP solution, or in current LP/pseudo solution
sol is NULL, that means it is asked for the LP or pseudo solution, this method can only be called if scip is in the solving stage SCIP_STAGE_SOLVING. In any other case, this method can be called if scip is in one of the following stages:
| scip | SCIP data structure |
| sol | primal solution, or NULL for current LP/pseudo solution |
| var | variable to get value for |
Definition at line 38905 of file scip.c.
References checkStage(), FALSE, SCIP_Var::scip, SCIP_CALL_ABORT, SCIPsolGetVal(), SCIPtreeHasCurrentNodeLP(), SCIPvarGetSol(), Scip::set, Scip::stat, Scip::tree, and TRUE.
Referenced by addBilinearTermToCut(), addBranchingComplementaritiesSOS1(), addFacetToCut(), addLinearTermToCut(), addLocalBranchingConstraint(), applyRepair(), branchBalancedCardinality(), branchUnbalancedCardinality(), buildConvexCombination(), calcEfficacy(), calcEfficacyDenseStorageQuad(), checkAndConss(), checkCands(), checkCons(), checkCumulativeCondition(), checkOrigPbCons(), checkSymresackSolution(), checkSystemGF2(), chooseGuidedVar(), collectBranchingCands(), collectSolution(), computeCut(), computeGradient(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), computeReferencePointGauge(), computeReferencePointProjection(), computeViolation(), consdataCheckSuperindicator(), consdataGetActivity(), constructSNFRelaxation(), copyValues(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createNAryBranch(), createNewSol(), createSelectedSortedEventpointsSol(), createSolFromSubScipSol(), createSortedEventpointsSol(), createSubproblem(), createSubscip(), CUTOFF_CONSTRAINT(), cutsTransformMIR(), DECL_CHANGESUBSCIP(), DECL_VARFIXINGS(), determineBestBounds(), determineBound(), determineBoundForSNF(), determineFixings(), determineVariableFixings(), doSeachEcAggr(), enforceCardinality(), enforceConssSOS1(), enforceConstraint(), enforceCuts(), enforceIndicators(), enforceSOS2(), evalLhs(), evaluateGauge(), extendToCover(), findSubtour(), fixDiscreteVars(), fixMatchingSolutionValues(), fixNonNeighborhoodVariables(), fixVariables(), generateCloseCutPoint(), generateClusterCuts(), generateCut(), generateCutLTI(), generateCutProjectedPoint(), generateCutSol(), generateSecantCut(), generateSparseCut(), getBoundConsFromVertices(), getBranchingPrioritiesSOS1(), getBranchingVerticesSOS1(), getClosestVlb(), getClosestVub(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getFixingValue(), getNLPFracVars(), getPotential(), getPotentialContributed(), getRelDistance(), getVectorOfWeights(), handle1Cycle(), handleCycle(), heurExec(), improvePoint(), isConvexLocal(), isPossibleToComputeCut(), isViolatedSOS1(), LOPseparate(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), maximalslack(), nodeGetSolvalBinaryBigMSOS1(), nodeGetSolvalVarboundLbSOS1(), nodeGetSolvalVarboundUbSOS1(), optimize(), performRandRounding(), polishPrimalSolution(), polishSolution(), proposeBranchingPoint(), proposeFeasibleSolution(), registerBranchingCandidates(), registerBranchingCandidatesCentrality(), registerBranchingCandidatesGap(), registerBranchingCandidatesViolation(), registerLargeRelaxValueVariableForBranching(), rowprepCleanupImproveCoefrange(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSEXIT(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SOLVECUMULATIVE(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPcheckSolutionOrbisack(), SCIPcomputeConvexEnvelopeFacet(), SCIPcutGenerationHeuristicCMIR(), SCIPgetRowprepViolation(), SCIPgetViolationAbspower(), SCIPisViolatedIndicator(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPprintSolReaderFzn(), SCIPresolveSolHeurSubNlp(), SCIPseparateRelaxedKnapsack(), SCIPwriteCliqueGraph(), selectEssentialRounding(), selectNextDiving(), selectRounding(), selectShifting(), sepaImplBoundCutsSOS1(), separateCons(), separateCuts(), separateGLS(), separateHeur(), separateIndicators(), separatePerspective(), sepaSubtour(), setAltLPObj(), setupAggregationData(), setupAndSolve(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), solCutIsViolated(), solveAndEvalSubscip(), solveComponent(), solveLp(), solveNLP(), solveSubNLP(), storeAggrFromMIP(), tightenVariables(), tryFixVar(), updateBestCandidate(), updateSlacks(), and updateWeightsTCliquegraph().
| SCIP_RETCODE SCIPgetSolVals | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| int | nvars, | ||
| SCIP_VAR ** | vars, | ||
| SCIP_Real * | vals | ||
| ) |
gets values of multiple variables in primal CIP solution
| scip | SCIP data structure |
| sol | primal solution, or NULL for current LP/pseudo solution |
| nvars | number of variables to get solution value for |
| vars | array with variables to get value for |
| vals | array to store solution values of variables |
Definition at line 38942 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, SCIPgetVarSols(), SCIPsolGetVal(), Scip::set, Scip::stat, and TRUE.
Referenced by alnsFixMoreVariables(), computeViolations(), copySol(), createNewSol(), createNewSols(), generateCut(), generateSparseCut(), processNlRow(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPcreateFiniteSolCopy(), SCIPevalExprtreeSol(), SCIPseparateCoversOrbisack(), SCIPseparateKnapsackCuts(), SCIPsetNLPInitialGuessSol(), SCIPsetRelaxSolValsSol(), separateCuts(), setupAndSolveSubscipOneopt(), solveCoveringProblem(), and transferSolution().
returns objective value of primal CIP solution w.r.t. original problem, or current LP/pseudo objective value
| scip | SCIP data structure |
| sol | primal solution, or NULL for current LP/pseudo objective value |
Definition at line 38988 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::origprob, SCIP_CALL_ABORT, SCIPlpGetObjval(), SCIPlpGetPseudoObjval(), SCIPprobExternObjval(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolIsOriginal(), SCIPtreeHasCurrentNodeLP(), Scip::set, Scip::transprob, Scip::tree, and TRUE.
Referenced by applyBoundHeur(), applyRepair(), applyVbounds(), createNewSol(), getActivities(), presolve(), presolveRound(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIPapplyHeurDualval(), SCIPcreateFiniteSolCopy(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPmakeSOS1sFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPresolveSolHeurSubNlp(), SCIPtransformProb(), SCIPvisualFoundSolution(), setupAndSolveSubscip(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipRapidlearning(), solveAndEvalSubscip(), solveComponent(), and solveCoveringProblem().
returns transformed objective value of primal CIP solution, or transformed current LP/pseudo objective value
| scip | SCIP data structure |
| sol | primal solution, or NULL for current LP/pseudo objective value |
Definition at line 39035 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::origprob, SCIP_CALL_ABORT, SCIPlpGetObjval(), SCIPlpGetPseudoObjval(), SCIPsolGetObj(), SCIPtreeHasCurrentNodeLP(), Scip::set, Scip::transprob, Scip::tree, and TRUE.
Referenced by applyHeur(), createNewSol(), getGenVBoundsBound(), proposeFeasibleSolution(), sampleRandomPoints(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIPapplyProximity(), SCIPheurSyncPassSol(), SCIPupdateStartpointHeurSubNlp(), SCIPvisualFoundSolution(), separateCuts(), solveComponent(), transferSolution(), tryOneOpt(), and trySolCandidate().
| SCIP_RETCODE SCIPrecomputeSolObj | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
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)
Definition at line 39066 of file scip.c.
References checkStage(), FALSE, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPsolRecomputeObj(), Scip::set, Scip::stat, and TRUE.
Referenced by SCIP_DECL_HEUREXEC().
maps original space objective value into transformed objective value
| scip | SCIP data structure |
| obj | original space objective value to transform |
Definition at line 39095 of file scip.c.
References checkStage(), FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPprobInternObjval(), Scip::set, Scip::transprob, and TRUE.
Referenced by SCIP_DECL_DIALOGEXEC(), SCIPresolveSolHeurSubNlp(), and SCIPsetObjlimit().
maps transformed objective value into original space
| scip | SCIP data structure |
| obj | transformed objective value to retransform in original space |
Definition at line 39120 of file scip.c.
References checkStage(), FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPprobExternObjval(), Scip::set, Scip::transprob, and TRUE.
Referenced by createNewSol(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), SCIPprintRootStatistics(), SCIPprintSolutionStatistics(), SCIPvisualCutoffNode(), SCIPvisualLowerbound(), SCIPvisualNewChild(), SCIPvisualSolvedNode(), SCIPvisualUpdateChild(), SCIPvisualUpperbound(), setupAndSolveSubscipRapidlearning(), setupSubScip(), solveComponent(), and writeExpandedSolutions().
gets clock time, when this solution was found
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 39147 of file scip.c.
References checkStage(), FALSE, SCIP_CALL_ABORT, SCIPsolGetTime(), and TRUE.
gets branch and bound run number, where this solution was found
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 39174 of file scip.c.
References checkStage(), FALSE, SCIP_CALL_ABORT, SCIPsolGetRunnum(), and TRUE.
| SCIP_Longint SCIPgetSolNodenum | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
gets node number of the specific branch and bound run, where this solution was found
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 39201 of file scip.c.
References checkStage(), FALSE, SCIP_CALL_ABORT, SCIPsolGetNodenum(), and TRUE.
Referenced by SCIP_DECL_HEUREXEC().
gets heuristic, that found this solution (or NULL if it's from the tree)
| scip | SCIP data structure |
| sol | primal solution |
Definition at line 39228 of file scip.c.
References checkStage(), FALSE, SCIP_CALL_ABORT, SCIPsolGetHeur(), and TRUE.
Referenced by determineVariableFixings(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), and SCIPupdateStartpointHeurSubNlp().
returns whether two given solutions are exactly equal
| scip | SCIP data structure |
| sol1 | first primal CIP solution |
| sol2 | second primal CIP solution |
Definition at line 39256 of file scip.c.
References checkStage(), FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPsolsAreEqual(), Scip::set, Scip::stat, Scip::transprob, and TRUE.
| SCIP_RETCODE SCIPadjustImplicitSolVals | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Bool | uselprows | ||
| ) |
adjusts solution values of implicit integer variables in handed solution. Solution objective value is not deteriorated by this method.
| scip | SCIP data structure |
| sol | primal CIP solution |
| uselprows | should LP row information be considered for none-objective variables |
Definition at line 39276 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, SCIPsolAdjustImplicitSolVals(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by performSimpleRounding().
| SCIP_RETCODE SCIPprintSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| FILE * | file, | ||
| SCIP_Bool | printzeros | ||
| ) |
outputs non-zero variables of solution in original problem space to the given file stream
sol is NULL (askinking for the current LP/pseudo solution), this method can be called if scip is in one of the following stages:
sol is not NULL, this method can be called if scip is in one of the following stages:
outputs non-zero variables of solution in original problem space to the given file stream
sol is NULL (asking for the current LP/pseudo solution), this method can be called if scip is in one of the following stages:
sol is not NULL, this method can be called if scip is in one of the following stages:
| scip | SCIP data structure |
| sol | primal solution, or NULL for current LP/pseudo solution |
| file | output file (or NULL for standard output) |
| printzeros | should variables set to zero be printed? |
Definition at line 39319 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprob, Scip::primal, SCIP_Mem::probmem, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPisTransformed(), SCIPmessageFPrintInfo(), SCIPmessagehdlrIsQuiet(), SCIPmessagehdlrSetQuiet(), SCIPprintReal(), SCIPprobExternObjval(), SCIPsolCreateCurrentSol(), SCIPsolFree(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolPrint(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by checkSystemGF2(), createCGCutDirect(), enforceConstraint(), fromCommandLine(), performRandRounding(), performSimpleRounding(), runCircle(), runString(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIPcreateFiniteSolCopy(), SCIPprintBestSol(), searchEcAggrWithMIP(), separateCuts(), solveCoveringProblem(), and trySolCandidate().
| SCIP_RETCODE SCIPprintTransSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| FILE * | file, | ||
| SCIP_Bool | printzeros | ||
| ) |
outputs non-zero variables of solution in transformed problem space to file stream
| scip | SCIP data structure |
| sol | primal solution, or NULL for current LP/pseudo solution |
| file | output file (or NULL for standard output) |
| printzeros | should variables set to zero be printed? |
Definition at line 39401 of file scip.c.
References checkStage(), FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprob, Scip::primal, SCIP_Mem::probmem, SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPmessageFPrintInfo(), SCIPprintReal(), SCIPsolCreateCurrentSol(), SCIPsolFree(), SCIPsolGetObj(), SCIPsolIsOriginal(), SCIPsolPrint(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by SCIPprintBestTransSol().
| SCIP_RETCODE SCIPprintMIPStart | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| FILE * | file | ||
| ) |
outputs discrete variables of solution in original problem space to the given file stream
scip is in one of the following stages:
| scip | SCIP data structure |
| sol | primal solution |
| file | output file (or NULL for standard output) |
Definition at line 39458 of file scip.c.
References checkStage(), FALSE, Scip::messagehdlr, Scip::origprob, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPisTransformed(), SCIPmessageFPrintInfo(), SCIPmessagehdlrIsQuiet(), SCIPmessagehdlrSetQuiet(), SCIPprintReal(), SCIPprobExternObjval(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolPrint(), Scip::set, Scip::stat, Scip::transprob, and TRUE.
Referenced by SCIP_DECL_DIALOGEXEC().
| SCIP_RETCODE SCIPgetDualSolVal | ( | SCIP * | scip, |
| SCIP_CONS * | cons, | ||
| SCIP_Real * | dualsolval, | ||
| SCIP_Bool * | boundconstraint | ||
| ) |
returns dual solution value of a constraint
| scip | SCIP data structure |
| cons | constraint for which the dual solution should be returned |
| dualsolval | pointer to store the dual solution value |
| boundconstraint | pointer to store whether the constraint is a bound constraint (or NULL) |
Definition at line 39501 of file scip.c.
References SCIP_Bool, SCIP_CALL, SCIP_INVALID, SCIP_INVALIDCALL, SCIP_OBJSENSE_MAXIMIZE, SCIP_OKAY, SCIP_Real, SCIPABORT, SCIPallocBufferArray, SCIPconsGetHdlr(), SCIPconsGetNVars(), SCIPconsGetTransformed(), SCIPconsGetVars(), SCIPconshdlrGetName(), SCIPconsIsTransformed(), SCIPfreeBufferArray, SCIPgetDualsolLinear(), SCIPgetLhsLinear(), SCIPgetObjsense(), SCIPgetRhsLinear(), SCIPgetVarRedcost(), SCIPsetIsEQ(), SCIPvarGetLPSol(), and Scip::set.
Referenced by printDualSol().
check whether the dual solution is available
| scip | SCIP data structure |
| printreason | print warning message if dualsol is not available? |
Definition at line 39645 of file scip.c.
References checkStage(), SCIP_Prob::conss, FALSE, Scip::messagehdlr, SCIP_Prob::nconss, SCIP_Prob::ncontvars, SCIP_Prob::nvars, SCIP_Stat::performpresol, SCIP_CALL_ABORT, SCIP_STAGE_SOLVED, SCIPconsGetHdlr(), SCIPconshdlrGetName(), SCIPgetStage(), SCIPmessageFPrintInfo(), SCIPwarningMessage(), Scip::stat, Scip::transprob, and TRUE.
Referenced by SCIPprintDualSol().
| SCIP_RETCODE SCIPprintDualSol | ( | SCIP * | scip, |
| FILE * | file, | ||
| SCIP_Bool | printzeros | ||
| ) |
outputs dual solution from LP solver to file stream
outputs dual solution from LP solver to file stream
| scip | SCIP data structure |
| file | output file (or NULL for standard output) |
| printzeros | should variables set to zero be printed? |
Definition at line 39708 of file scip.c.
References printDualSol(), SCIP_CALL, SCIP_OKAY, SCIPisDualSolAvailable(), and TRUE.
Referenced by SCIP_DECL_DIALOGEXEC().
| SCIP_RETCODE SCIPprintRay | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| FILE * | file, | ||
| SCIP_Bool | printzeros | ||
| ) |
outputs non-zero variables of solution representing a ray in original problem space to file stream
| scip | SCIP data structure |
| sol | primal solution representing ray |
| file | output file (or NULL for standard output) |
| printzeros | should variables set to zero be printed? |
Definition at line 39741 of file scip.c.
References checkStage(), FALSE, Scip::messagehdlr, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPsolPrintRay(), Scip::set, Scip::stat, Scip::transprob, and TRUE.
Referenced by setupAndSolve(), and updatePrimalRay().
| int SCIPgetNSols | ( | SCIP * | scip | ) |
gets number of feasible primal solutions stored in the solution storage in case the problem is transformed; in case the problem stage is SCIP_STAGE_PROBLEM, the number of solution in the original solution candidate storage is returned
| scip | SCIP data structure |
Definition at line 39777 of file scip.c.
References checkStage(), FALSE, SCIP_Primal::nsols, Scip::origprimal, Scip::primal, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INIT, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPABORT, SCIPerrorMessage, Scip::set, SCIP_Set::stage, and TRUE.
Referenced by applyHeur(), applyRepair(), checkEstimateCriterion(), checkLogCriterion(), checkRankOneTransition(), createCGCuts(), createNewSols(), createNLP(), createSubproblem(), DECL_VARFIXINGS(), determineSolvingPhase(), determineVariableFixings(), doSolveSubMIP(), presolve(), presolveRound(), runCircle(), runString(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_SEPAEXECLP(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPvalidateSolve(), searchEcAggrWithMIP(), selectSolsRandomized(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipMutation(), setupAndSolveSubscipOneopt(), setupAndSolveSubscipRapidlearning(), solveAndEvalSubscip(), solveCoveringProblem(), solveSubNLP(), solveSubproblem(), solveSubscipLpface(), storeAggrFromMIP(), transformSols(), wrapperDins(), and wrapperRins().
gets array of feasible primal solutions stored in the solution storage in case the problem is transformed; in case if the problem stage is in SCIP_STAGE_PROBLEM, it returns the number array of solution candidate stored
| scip | SCIP data structure |
Definition at line 39826 of file scip.c.
References checkStage(), FALSE, Scip::origprimal, Scip::primal, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INIT, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPerrorMessage, Scip::set, SCIP_Primal::sols, SCIP_Set::stage, and TRUE.
Referenced by createCGCuts(), createNewSols(), DECL_VARFIXINGS(), determineVariableFixings(), doSolveSubMIP(), fixVariables(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), selectSolsRandomized(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipMutation(), setupAndSolveSubscipOneopt(), setupAndSolveSubscipRapidlearning(), solveSubNLP(), solveSubproblem(), solveSubscipLpface(), transformSols(), wrapperDins(), and wrapperRins().
gets best feasible primal solution found so far if the problem is transformed; in case the problem is in SCIP_STAGE_PROBLEM it returns the best solution candidate, or NULL if no solution has been found or the candidate store is empty;
| scip | SCIP data structure |
Definition at line 39876 of file scip.c.
References checkStage(), FALSE, SCIP_Primal::nsols, Scip::origprimal, Scip::primal, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INIT, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPerrorMessage, Scip::set, SCIP_Primal::sols, SCIP_Set::stage, and TRUE.
Referenced by addLocalBranchingConstraint(), applyHeur(), applyRepair(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), createSubscip(), DECL_CHANGESUBSCIP(), DECL_NHREFSOL(), DECL_VARFIXINGS(), determineFixings(), determineVariableFixings(), displayRelevantStats(), execRelpscost(), fixAndPropagate(), fromCommandLine(), getActivities(), getFixingValue(), maximalslack(), presolve(), presolveRound(), runCircle(), runString(), SCIP_DECL_CONSEXIT(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPINITSOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SOLVECUMULATIVE(), SCIPaddCurrentSol(), SCIPaddSol(), SCIPaddSolFree(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPprintBestSol(), SCIPprintBestTransSol(), SCIPtransformProb(), SCIPtryCurrentSol(), SCIPtrySol(), SCIPtrySolFree(), SCIPvalidateSolve(), searchEcAggrWithMIP(), selectInitialVariable(), setupAndSolve(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), solveAndEvalSubscip(), solveComponent(), solveCoveringProblem(), solveSubscipLpface(), storeAggrFromMIP(), and transferSolution().
| SCIP_RETCODE SCIPprintBestSol | ( | SCIP * | scip, |
| FILE * | file, | ||
| SCIP_Bool | printzeros | ||
| ) |
outputs best feasible primal solution found so far to file stream
outputs best feasible primal solution found so far to file stream
| scip | SCIP data structure |
| file | output file (or NULL for standard output) |
| printzeros | should variables set to zero be printed? |
Definition at line 39942 of file scip.c.
References checkStage(), FALSE, Scip::messagehdlr, SCIP_CALL, SCIP_OKAY, SCIPgetBestSol(), SCIPmessageFPrintInfo(), SCIPprintSol(), and TRUE.
Referenced by fromCommandLine(), SCIP_DECL_DIALOGEXEC(), and solveSubscip().
| SCIP_RETCODE SCIPprintBestTransSol | ( | SCIP * | scip, |
| FILE * | file, | ||
| SCIP_Bool | printzeros | ||
| ) |
outputs best feasible primal solution found so far in transformed variables to file stream
outputs best feasible primal solution found so far in transformed variables to file stream
| scip | SCIP data structure |
| file | output file (or NULL for standard output) |
| printzeros | should variables set to zero be printed? |
Definition at line 39982 of file scip.c.
References checkStage(), FALSE, Scip::messagehdlr, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPgetBestSol(), SCIPmessageFPrintInfo(), SCIPprintTransSol(), SCIPsolIsOriginal(), and TRUE.
Referenced by SCIP_DECL_DIALOGEXEC().
| SCIP_RETCODE SCIProundSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Bool * | success | ||
| ) |
try to round given solution
| scip | SCIP data structure |
| sol | primal solution |
| success | pointer to store whether rounding was successful |
Definition at line 40018 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPerrorMessage, SCIPsolIsOriginal(), SCIPsolRound(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by applyBoundHeur(), applyVbounds(), performStrongbranchWithPropagation(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), and solveNLP().
| SCIP_RETCODE SCIPretransformSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol | ||
| ) |
retransforms solution to original problem space
retransforms solution to original problem space
| scip | SCIP data structure |
| sol | primal CIP solution |
Definition at line 40054 of file scip.c.
References checkStage(), FALSE, Scip::origprob, SCIP_Bool, SCIP_CALL, SCIP_ERROR, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_SOLORIGIN_LPSOL, SCIP_SOLORIGIN_NLPSOL, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, SCIP_SOLORIGIN_PSEUDOSOL, SCIP_SOLORIGIN_RELAXSOL, SCIP_SOLORIGIN_UNKNOWN, SCIP_SOLORIGIN_ZERO, SCIPerrorMessage, SCIPsolGetOrigin(), SCIPsolRetransform(), SCIPunlinkSol(), Scip::set, Scip::stat, Scip::transprob, and TRUE.
Referenced by fromCommandLine().
| SCIP_RETCODE SCIPreadSol | ( | SCIP * | scip, |
| const char * | filename | ||
| ) |
reads a given solution file, problem has to be transformed in advance
| scip | SCIP data structure |
| filename | name of the input file |
Definition at line 40112 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, SCIPreadProb(), and TRUE.
| SCIP_RETCODE SCIPreadSolFile | ( | SCIP * | scip, |
| const char * | filename, | ||
| SCIP_SOL * | sol, | ||
| SCIP_Bool | xml, | ||
| SCIP_Bool * | partial, | ||
| SCIP_Bool * | error | ||
| ) |
reads a given solution file and store the solution values in the given solution pointer
| scip | SCIP data structure |
| filename | name of the input file |
| sol | solution pointer |
| xml | true, iff the given solution in written in XML |
| partial | pointer to store if the solution is partial |
| error | pointer store if an error occured |
Definition at line 40454 of file scip.c.
References checkStage(), FALSE, readSolFile(), readXmlSolFile(), SCIP_CALL, SCIP_OKAY, and TRUE.
| SCIP_RETCODE SCIPaddSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Bool * | stored | ||
| ) |
adds feasible primal solution to solution storage by copying it
| scip | SCIP data structure |
| sol | primal CIP solution |
| stored | stores whether given solution was good enough to keep |
Definition at line 40494 of file scip.c.
References checkStage(), Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprimal, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPcreateSolCopy(), SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddOrigSol(), SCIPprimalAddSol(), SCIPprimalAddSolFree(), SCIPsolIsOriginal(), SCIPsolRetransform(), SCIPsolUnlink(), SCIPstoreSolutionGap(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by solveComponent().
| SCIP_RETCODE SCIPaddSolFree | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_Bool * | stored | ||
| ) |
adds primal solution to solution storage, frees the solution afterwards
| scip | SCIP data structure |
| sol | pointer to primal CIP solution; is cleared in function call |
| stored | stores whether given solution was good enough to keep |
Definition at line 40584 of file scip.c.
References checkStage(), Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprimal, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddOrigSolFree(), SCIPprimalAddSolFree(), SCIPsolIsOriginal(), SCIPsolRetransform(), SCIPsolUnlink(), SCIPstoreSolutionGap(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by applyRepair(), readMst(), readSol(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), and SCIP_DECL_HEUREXEC().
| SCIP_RETCODE SCIPaddCurrentSol | ( | SCIP * | scip, |
| SCIP_HEUR * | heur, | ||
| SCIP_Bool * | stored | ||
| ) |
adds current LP/pseudo solution to solution storage
| scip | SCIP data structure |
| heur | heuristic that found the solution |
| stored | stores whether given solution was good enough to keep |
Definition at line 40654 of file scip.c.
References checkStage(), Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIPgetBestSol(), SCIPprimalAddCurrentSol(), SCIPstoreSolutionGap(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
| SCIP_RETCODE SCIPtrySol | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Bool | printreason, | ||
| SCIP_Bool | completely, | ||
| SCIP_Bool | checkbounds, | ||
| SCIP_Bool | checkintegrality, | ||
| SCIP_Bool | checklprows, | ||
| SCIP_Bool * | stored | ||
| ) |
checks solution for feasibility; if possible, adds it to storage by copying
| scip | SCIP data structure |
| sol | primal CIP solution |
| printreason | Should all reasons of violation 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? |
| stored | stores whether given solution was feasible and good enough to keep |
Definition at line 40694 of file scip.c.
References checkSolOrig(), checkStage(), Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_Bool, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_STAGE_PRESOLVING, SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddSol(), SCIPprimalTrySol(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolRetransform(), SCIPsolUnlink(), SCIPstoreSolutionGap(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by applyBoundHeur(), applyVbounds(), createNewSol(), enforceCardinality(), performRandRounding(), performSimpleRounding(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), solveLp(), solveSubNLP(), and solveSubproblem().
| SCIP_RETCODE SCIPtrySolFree | ( | SCIP * | scip, |
| SCIP_SOL ** | sol, | ||
| SCIP_Bool | printreason, | ||
| SCIP_Bool | completely, | ||
| SCIP_Bool | checkbounds, | ||
| SCIP_Bool | checkintegrality, | ||
| SCIP_Bool | checklprows, | ||
| SCIP_Bool * | stored | ||
| ) |
checks primal solution; if feasible, adds it to storage; solution is freed afterwards
| scip | SCIP data structure |
| sol | pointer to primal CIP solution; is cleared in function call |
| printreason | Should all reasons of violations be printed |
| completely | Should all violation 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? |
| stored | stores whether solution was feasible and good enough to keep |
Definition at line 40788 of file scip.c.
References checkSolOrig(), checkStage(), Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_Bool, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_STAGE_PRESOLVING, SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddSolFree(), SCIPprimalTrySolFree(), SCIPsolFree(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolRetransform(), SCIPsolUnlink(), SCIPstoreSolutionGap(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by createNewSol(), createNewSols(), heurExec(), performStrongbranchWithPropagation(), readSol(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_HEUREXEC(), setupAndSolveSubscipOneopt(), solveSubNLP(), storeSolution(), transferSolution(), tryOneOpt(), and trySolCandidate().
| SCIP_RETCODE SCIPtryCurrentSol | ( | SCIP * | scip, |
| SCIP_HEUR * | heur, | ||
| SCIP_Bool | printreason, | ||
| SCIP_Bool | completely, | ||
| SCIP_Bool | checkintegrality, | ||
| SCIP_Bool | checklprows, | ||
| SCIP_Bool * | stored | ||
| ) |
checks current LP/pseudo solution for feasibility; if possible, adds it to storage
| scip | SCIP data structure |
| heur | heuristic that found the solution |
| printreason | Should all reasons of violations be printed? |
| completely | Should all violation be checked? |
| checkintegrality | Has integrality to be checked? |
| checklprows | Do constraints represented by rows in the current LP have to be checked? |
| stored | stores whether given solution was feasible and good enough to keep |
Definition at line 40881 of file scip.c.
References checkStage(), Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIPgetBestSol(), SCIPprimalTryCurrentSol(), SCIPstoreSolutionGap(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.
Referenced by SCIP_DECL_HEUREXEC().
returns all partial solutions
| scip | SCIP data structure |
Definition at line 40924 of file scip.c.
References checkStage(), FALSE, Scip::origprimal, SCIP_Primal::partialsols, SCIP_CALL_ABORT, and TRUE.
| int SCIPgetNPartialSols | ( | SCIP * | scip | ) |
returns number of partial solutions
| scip | SCIP data structure |
Definition at line 40947 of file scip.c.
References checkStage(), FALSE, SCIP_Primal::npartialsols, Scip::origprimal, SCIP_CALL_ABORT, and TRUE.
| SCIP_RETCODE SCIPcheckSol | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Bool | printreason, | ||
| SCIP_Bool | completely, | ||
| SCIP_Bool | checkbounds, | ||
| SCIP_Bool | checkintegrality, | ||
| SCIP_Bool | checklprows, | ||
| SCIP_Bool * | feasible | ||
| ) |
checks solution for feasibility without adding it to the solution store
| scip | SCIP data structure |
| sol | primal CIP solution |
| printreason | Should all reasons of violations be printed? |
| completely | Should all violation 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 given solution is feasible |
Definition at line 40974 of file scip.c.
References checkSolOrig(), checkStage(), FALSE, Scip::mem, Scip::messagehdlr, SCIP_Set::misc_exactsolve, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPerrorMessage, SCIPsolCheck(), SCIPsolIsOriginal(), SCIPsolIsPartial(), Scip::set, Scip::stat, Scip::transprob, and TRUE.
Referenced by applyVbounds(), checkSystemGF2(), SCIP_DECL_HEUREXEC(), setupAndSolveSubscip(), solveAndEvalSubscip(), solveComponent(), solveSubNLP(), and transferSolution().
| SCIP_RETCODE SCIPcheckSolOrig | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Bool * | feasible, | ||
| SCIP_Bool | printreason, | ||
| SCIP_Bool | completely | ||
| ) |
checks solution for feasibility in original problem without adding it to the solution store; this method is used to double check a solution in order to validate the presolving process
| scip | SCIP data structure |
| sol | primal CIP solution |
| feasible | stores whether given solution is feasible |
| printreason | should the reason for the violation be printed? |
| completely | should all violation be checked? |
Definition at line 41031 of file scip.c.
References checkSolOrig(), checkStage(), FALSE, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPerrorMessage, SCIPsolIsPartial(), and TRUE.
Referenced by checkSolutionOrig(), displayRelevantStats(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_PRICERREDCOST(), SCIPsolveCIP(), SCIPvalidateSolve(), solveAndEvalSubscip(), and solveComponent().
update integrality violation of a solution
| scip | SCIP data structure |
| sol | primal CIP solution |
| absviol | absolute violation |
Definition at line 13749 of file scip.c.
References Scip::origprimal, SCIPprimalUpdateViolations(), and SCIPsolUpdateIntegralityViolation().
Referenced by SCIP_DECL_CONSCHECK().
| void SCIPupdateSolBoundViolation | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Real | absviol, | ||
| SCIP_Real | relviol | ||
| ) |
update bound violation of a solution
| scip | SCIP data structure |
| sol | primal CIP solution |
| absviol | absolute violation |
| relviol | relative violation |
Definition at line 13760 of file scip.c.
References Scip::origprimal, SCIPprimalUpdateViolations(), and SCIPsolUpdateBoundViolation().
Referenced by checkSolOrig().
| void SCIPupdateSolLPRowViolation | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Real | absviol, | ||
| SCIP_Real | relviol | ||
| ) |
update LP row violation of a solution
| scip | SCIP data structure |
| sol | primal CIP solution |
| absviol | absolute violation |
| relviol | relative violation |
Definition at line 13772 of file scip.c.
References Scip::origprimal, SCIPprimalUpdateViolations(), and SCIPsolUpdateLPRowViolation().
| void SCIPupdateSolConsViolation | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Real | absviol, | ||
| SCIP_Real | relviol | ||
| ) |
update constraint violation of a solution
| scip | SCIP data structure |
| sol | primal CIP solution |
| absviol | absolute violation |
| relviol | relative violation |
Definition at line 13784 of file scip.c.
References Scip::origprimal, SCIPprimalUpdateViolations(), and SCIPsolUpdateConsViolation().
Referenced by checkAllConss(), checkCons(), checkCumulativeCondition(), checkOrigPbCons(), computeViolation(), and SCIP_DECL_CONSCHECK().
| void SCIPupdateSolLPConsViolation | ( | SCIP * | scip, |
| SCIP_SOL * | sol, | ||
| SCIP_Real | absviol, | ||
| SCIP_Real | relviol | ||
| ) |
update LP row and constraint violations of a solution
| scip | SCIP data structure |
| sol | primal CIP solution |
| absviol | absolute violation |
| relviol | relative violation |
Definition at line 13796 of file scip.c.
References Scip::origprimal, SCIPprimalUpdateViolations(), and SCIPsolUpdateLPConsViolation().
Referenced by checkCons().
| void SCIPactivateSolViolationUpdates | ( | SCIP * | scip | ) |
allow violation updates
| scip | SCIP data structure |
Definition at line 13808 of file scip.c.
References Scip::origprimal, SCIPprimalSetUpdateViolations(), and TRUE.
Referenced by checkCons().
| void SCIPdeactivateSolViolationUpdates | ( | SCIP * | scip | ) |
disallow violation updates
| scip | SCIP data structure |
Definition at line 13816 of file scip.c.
References FALSE, Scip::origprimal, and SCIPprimalSetUpdateViolations().
Referenced by checkCons().
return whether a primal ray is stored that proves unboundedness of the LP relaxation
| scip | SCIP data structure |
Definition at line 41069 of file scip.c.
References checkStage(), FALSE, Scip::primal, SCIP_Primal::primalray, SCIP_CALL_ABORT, and TRUE.
Referenced by generateCutUnboundedLP(), and setupAndSolve().
gets value of given variable in primal ray causing unboundedness of the LP relaxation; should only be called if such a ray is stored (check with SCIPhasPrimalRay())
| scip | SCIP data structure |
| var | variable to get value for |
Definition at line 41087 of file scip.c.
References checkStage(), FALSE, Scip::primal, SCIP_Primal::primalray, SCIP_Var::scip, SCIP_CALL_ABORT, SCIPsolGetRayVal(), Scip::set, Scip::stat, and TRUE.
Referenced by generateCutUnboundedLP(), and setupAndSolve().
| SCIP_RETCODE SCIPupdatePrimalRay | ( | SCIP * | scip, |
| SCIP_SOL * | primalray | ||
| ) |
updates the primal ray thats proves unboundedness
scip is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
| scip | SCIP data structure |
| primalray | the new primal ray |
Definition at line 41114 of file scip.c.
References checkStage(), FALSE, Scip::mem, Scip::primal, SCIP_Mem::probmem, SCIP_CALL, SCIP_OKAY, SCIPprimalUpdateRay(), Scip::set, Scip::stat, and TRUE.
Referenced by setupAndSolve().