methods to control the solving process of SCIP
This large group of methods and modules comprises the solving process related API of SCIP. This includes
Modules | |
Solving Statistics | |
methods to query statistics about the solving process | |
Parameter | |
methods to create, query, and print user parameters | |
Event Handling | |
methods to create, catch, process, and drop events during the solving process of SCIP | |
LP Relaxation | |
methods to build and access LP relaxation information | |
NLP Relaxation | |
methods for the nonlinear relaxation | |
Branching | |
methods for branching on LP solutions, relaxation solutions, and pseudo solutions | |
Local Subproblem | |
methods to query information about or strengthen the problem at the current local search node | |
Search Tree | |
methods to query search tree related information | |
Probing | |
methods to initiate and control the probing mode of SCIP | |
Reoptimization | |
methods for reoptimization related tasks | |
SCIP_RETCODE SCIPtransformProb | ( | SCIP * | scip | ) |
initializes solving data structures and transforms problem
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 13929 of file scip.c.
References SCIP_Stat::avgnnz, BMSgarbagecollectBlockMemory, Scip::branchcand, calcNonZeros(), checkSolOrig(), checkStage(), Scip::cliquetable, Scip::conflict, Scip::conflictstore, SCIP_Set::conshdlrs, SCIP_Set::disp_verblevel, Scip::eventfilter, Scip::eventqueue, SCIP_Stat::externmemestim, FALSE, SCIP_Set::limit_memory, Scip::lp, MAX, Scip::mem, Scip::messagehdlr, SCIP_Set::misc_estimexternmem, SCIP_Set::misc_printreason, SCIP_Prob::nbinvars, SCIP_Set::nconshdlrs, SCIP_Prob::nconss, SCIP_Prob::ncontvars, SCIP_Stat::nexternalsolsfound, SCIP_Prob::nimplvars, SCIP_Prob::nintvars, SCIP_Stat::nnz, SCIP_Primal::nsols, SCIP_Primal::nsolsfound, SCIP_Prob::nvars, Scip::origprimal, Scip::origprob, Scip::primal, SCIP_Mem::probmem, SCIP_Set::random_permutationseed, SCIP_Set::random_permuteconss, SCIP_Set::random_permutevars, REALABS, Scip::relaxation, Scip::reopt, SCIP_Set::reopt_enable, SCIP_Bool, SCIP_CALL, SCIP_Longint, SCIP_MEM_NOLIMIT, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIP_Real, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIP_STATUS_UNKNOWN, SCIP_VERBLEVEL_FULL, SCIP_VERBLEVEL_HIGH, SCIPbranchcandCreate(), SCIPcliquetableCreate(), SCIPconflictCreate(), SCIPconshdlrGetNActiveConss(), SCIPconshdlrGetName(), SCIPdebugMsg, SCIPerrorMessage, SCIPeventfilterCreate(), SCIPeventqueueCreate(), SCIPgetBestSol(), SCIPgetMemUsed(), SCIPgetNConss(), SCIPgetNVars(), SCIPgetSolOrigObj(), SCIPisInfinity(), SCIPlpCreate(), SCIPmessagePrintVerbInfo(), SCIPpermuteProb(), SCIPprimalAddSol(), SCIPprimalCreate(), SCIPprimalUpdateObjlimit(), SCIPprobCheckObjIntegral(), SCIPprobGetName(), SCIPprobMarkNConss(), SCIPprobScaleObj(), SCIPprobTransform(), SCIPrelaxationCreate(), SCIPsetGetNodesel(), SCIPsetInitPlugins(), SCIPsolFree(), SCIPsolGetObj(), SCIPsolRecomputeObj(), SCIPstatMark(), SCIPstoreSolutionGap(), SCIPtreeCreate(), Scip::set, SCIP_Mem::setmem, SCIP_Primal::sols, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, Scip::transprob, Scip::tree, and TRUE.
Referenced by componentSetupWorkingSol(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_RELAXEXEC(), SCIPapplyProximity(), SCIPpresolve(), SCIPsolveConcurrent(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipOneopt(), setupAndSolveSubscipRapidlearning(), solveSubNLP(), solveSubscipLpface(), wrapperDins(), and wrapperRins().
SCIP_RETCODE SCIPpresolve | ( | SCIP * | scip | ) |
transforms and presolves problem
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 15948 of file scip.c.
References checkStage(), SCIP_Set::conshdlrs, SCIP_Set::disp_verblevel, displayRelevantStats(), Scip::eventqueue, FALSE, initSolve(), Scip::interrupt, Scip::lp, Scip::mem, Scip::messagehdlr, SCIP_Set::misc_catchctrlc, SCIP_Prob::nbinvars, SCIP_Set::nconshdlrs, SCIP_Prob::nconss, SCIP_Prob::ncontvars, SCIP_Prob::nimplvars, SCIP_Prob::nintvars, SCIP_Prob::nvars, SCIP_Prob::objscale, presolve(), SCIP_Stat::presolvingtime, SCIP_Mem::probmem, SCIP_Bool, SCIP_CALL, SCIP_ERROR, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_TRANSFORMED, SCIP_STATUS_INFEASIBLE, SCIP_STATUS_INFORUNBD, SCIP_STATUS_OPTIMAL, SCIP_STATUS_UNBOUNDED, SCIP_VERBLEVEL_HIGH, SCIP_VERBLEVEL_NORMAL, SCIPABORT, SCIPclockGetTime(), SCIPclockStart(), SCIPclockStop(), SCIPconshdlrGetNActiveConss(), SCIPconshdlrGetName(), SCIPerrorMessage, SCIPinterruptCapture(), SCIPinterruptRelease(), SCIPmessagePrintVerbInfo(), SCIPprobIsObjIntegral(), SCIPtransformProb(), SCIPtreeClear(), Scip::set, SCIP_Stat::solvingtime, SCIP_Stat::solvingtimeoverall, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, Scip::transprob, Scip::tree, TRUE, and SCIP_Stat::userinterrupt.
Referenced by runGastrans(), runString(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPsolve(), SCIPsolveConcurrent(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipRapidlearning(), and solveSubNLP().
SCIP_RETCODE SCIPsolve | ( | SCIP * | scip | ) |
transforms, presolves, and solves problem
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 16109 of file scip.c.
References Scip::branchcand, checkStage(), Scip::cliquetable, Scip::conflict, Scip::conflictstore, Scip::cutpool, Scip::delayedcutpool, SCIP_Set::disp_verblevel, displayRelevantStats(), Scip::eventfilter, Scip::eventqueue, FALSE, freeSolve(), initSolve(), Scip::interrupt, Scip::lp, MAX, Scip::mem, Scip::messagehdlr, SCIP_Set::misc_catchctrlc, SCIP_Stat::nnodes, SCIP_Stat::nreoptruns, SCIP_Stat::nrootintfixingsrun, SCIP_Stat::nruns, SCIP_Primal::nsols, SCIP_Prob::nvars, Scip::origprimal, Scip::origprob, SCIP_Stat::performpresol, prepareReoptimization(), Scip::pricestore, Scip::primal, SCIP_Mem::probmem, Scip::relaxation, Scip::reopt, SCIP_Set::reopt_commontimelimit, SCIP_Set::reopt_enable, SCIP_Set::reopt_savesols, SCIP_Set::reopt_sepabestsol, SCIP_Set::reopt_storevarhistory, SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIP_Real, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STATUS_INFEASIBLE, SCIP_STATUS_INFORUNBD, SCIP_STATUS_OPTIMAL, SCIP_STATUS_UNBOUNDED, SCIP_VERBLEVEL_NORMAL, SCIPclearRelaxSolVals(), SCIPclockStart(), SCIPclockStop(), SCIPdebug, SCIPdebugMsg, SCIPerrorMessage, SCIPfindConshdlr(), SCIPgetChildren(), SCIPgetLeaves(), SCIPgetNBinVars(), SCIPgetNIntVars(), SCIPgetNNodesLeft(), SCIPgetRealParam(), SCIPgetSiblings(), SCIPgetSolvingTime(), SCIPinterruptCapture(), SCIPinterruptRelease(), SCIPmessagePrintVerbInfo(), SCIPpresolve(), SCIPreoptAddOptSol(), SCIPreoptAddSol(), SCIPreoptSaveOpenNodes(), SCIPreoptUpdateVarHistory(), SCIPsetGetNodesel(), SCIPsetRealParam(), SCIPsolGetHeur(), SCIPsolGetNodenum(), SCIPsolIsOriginal(), SCIPsolPrint(), SCIPsolRetransform(), SCIPsolveCIP(), SCIPsolveIsStopped(), SCIPstatResetDisplay(), SCIPtreeGetCurrentNode(), SCIPtreeGetNNodes(), SCIPverbMessage(), SCIPwarningMessage(), Scip::sepastore, Scip::set, SCIP_Primal::sols, SCIP_Stat::solvingtime, SCIP_Stat::solvingtimeoverall, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, Scip::transprob, Scip::tree, TRUE, SCIP_Stat::userinterrupt, SCIP_Stat::userrestart, and SCIP_Prob::vars.
Referenced by applyDomainChanges(), applyRepair(), doSolveSubMIP(), fromCommandLine(), getActivities(), runCircle(), runGastrans(), runString(), SCIP_DECL_CONCSOLVEREXEC(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SOLVECUMULATIVE(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPcount(), SCIPsolveConcurrent(), searchEcAggrWithMIP(), setupAndSolve(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipMutation(), setupAndSolveSubscipOneopt(), setupAndSolveSubscipRapidlearning(), solveCoveringProblem(), solveSubNLP(), solveSubproblem(), solveSubscip(), solveSubscipLpface(), wrapperDins(), wrapperRins(), and writeBounds().
SCIP_RETCODE SCIPsolveParallel | ( | SCIP * | scip | ) |
transforms, presolves, and solves problem using additional solvers which emphasize on finding solutions.
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
transforms, presolves, and solves problem using the configured concurrent solvers
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 16395 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIPsolveConcurrent(), and TRUE.
Referenced by SCIP_DECL_DIALOGEXEC().
SCIP_RETCODE SCIPsolveConcurrent | ( | SCIP * | scip | ) |
transforms, presolves, and solves problem using additional solvers which emphasize on finding solutions.
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
transforms, presolves, and solves problem using the configured concurrent solvers
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 16425 of file scip.c.
References checkStage(), Scip::concurrent, SCIP_Set::concurrent_changeseeds, SCIP_Set::concurrent_initseed, SCIP_Set::concurrent_presolvebefore, displayRelevantStats(), exitPresolve(), FALSE, initPresolve(), initSolve(), SCIP_Set::limit_memory, MAX, SCIP_Set::parallel_maxnthreads, SCIP_Set::parallel_minnthreads, SCIP_Bool, SCIP_CALL, SCIP_CLOCKTYPE_WALL, SCIP_INVALIDDATA, SCIP_Longint, SCIP_MEM_NOLIMIT, SCIP_OKAY, SCIP_Real, SCIP_STAGE_PRESOLVED, SCIP_STATUS_MEMLIMIT, SCIP_VERBLEVEL_FULL, SCIPallocBufferArray, SCIPclockStart(), SCIPclockStop(), SCIPconcsolverCreateInstance(), SCIPconcsolverInitSeeds(), SCIPconcsolverTypeGetPrefPrio(), SCIPconcurrentSolve(), SCIPcreateRandom(), SCIPerrorMessage, SCIPfreeBufferArray, SCIPfreeConcurrent(), SCIPfreeRandom(), SCIPgetConcsolverTypes(), SCIPgetMemExternEstim(), SCIPgetMemUsed(), SCIPgetNConcsolverTypes(), SCIPgetNConcurrentSolvers(), SCIPgetStage(), SCIPgetSyncstore(), SCIPinfoMessage(), SCIPpresolve(), SCIPrandomGetInt(), SCIPselectDownRealInt(), SCIPsetIntParam(), SCIPsolve(), SCIPsyncstoreInit(), SCIPsyncstoreSetSolveIsStopped(), SCIPtransformProb(), SCIPverbMessage(), SCIPwarningMessage(), Scip::set, SCIP_Stat::solvingtime, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, and TRUE.
Referenced by SCIPsolveParallel().
SCIP_RETCODE SCIPfreeSolve | ( | SCIP * | scip, |
SCIP_Bool | restart | ||
) |
frees branch and bound tree and all solution process data; statistics, presolving data and transformed problem is preserved
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
restart | should certain data be preserved for improved restarting? |
Definition at line 17116 of file scip.c.
References checkStage(), exitPresolve(), FALSE, freeSolve(), SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_INIT, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STATUS_INFEASIBLE, SCIP_STATUS_INFORUNBD, SCIP_STATUS_OPTIMAL, SCIP_STATUS_UNBOUNDED, SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, and TRUE.
Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPfreeTransform().
SCIP_RETCODE SCIPfreeReoptSolve | ( | SCIP * | scip | ) |
frees branch and bound tree and all solution process data; statistics, presolving data and transformed problem is preserved
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
frees branch and bound tree and all solution process data; statistics, presolving data and transformed problem is preserved
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 17183 of file scip.c.
References checkStage(), exitPresolve(), FALSE, freeReoptSolve(), SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_INIT, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STATUS_INFEASIBLE, SCIP_STATUS_INFORUNBD, SCIP_STATUS_OPTIMAL, SCIP_STATUS_UNBOUNDED, SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, and TRUE.
Referenced by readDiffFile().
SCIP_RETCODE SCIPfreeTransform | ( | SCIP * | scip | ) |
frees all solution process data including presolving and transformed problem, only original problem is kept
scip
is in one of the following stages:
See SCIP_STAGE for a complete list of all possible solving stages.
scip | SCIP data structure |
Definition at line 17246 of file scip.c.
References checkStage(), exitPresolve(), FALSE, freeTransform(), SCIP_Set::reopt_enable, SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_INIT, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STATUS_INFEASIBLE, SCIP_STATUS_INFORUNBD, SCIP_STATUS_OPTIMAL, SCIP_STATUS_UNBOUNDED, SCIPerrorMessage, SCIPfreeSolve(), Scip::set, SCIP_Set::stage, Scip::stat, SCIP_Stat::status, and TRUE.
Referenced by freeMemory(), readDiffFile(), runCircle(), runGastrans(), runString(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_READERREAD(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPfreeProb(), solveAndEvalSubscip(), solveSubNLP(), and updateMIP().
SCIP_RETCODE SCIPinterruptSolve | ( | SCIP * | scip | ) |
informs SCIP that the solving process should be interrupted as soon as possible (e.g., after the current node has been solved)
scip
is in one of the following stages:
scip | SCIP data structure |
Definition at line 17318 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, Scip::stat, TRUE, and SCIP_Stat::userinterrupt.
Referenced by applySolvingPhase(), checkSolution(), SCIP_DECL_CONCSOLVERSTOP(), SCIP_DECL_EVENTEXEC(), and solveComponent().
SCIP_RETCODE SCIPrestartSolve | ( | SCIP * | scip | ) |
informs SCIP that the solving process should be restarted as soon as possible (e.g., after the current node has been solved)
scip
is in one of the following stages:
scip | SCIP data structure |
Definition at line 17344 of file scip.c.
References checkStage(), FALSE, SCIP_CALL, SCIP_OKAY, Scip::stat, TRUE, and SCIP_Stat::userrestart.
Referenced by applySolvingPhase(), SCIP_DECL_CONSINITLP(), and SCIP_DECL_EVENTEXEC().
SCIP_RETCODE SCIPenableReoptimization | ( | SCIP * | scip, |
SCIP_Bool | enable | ||
) |
include specific heuristics and branching rules for reoptimization
scip
is in one of the following stages:
scip | SCIP data structure |
enable | enable reoptimization (TRUE) or disable it (FALSE) |
Definition at line 16598 of file scip.c.
References Scip::mem, Scip::messagehdlr, Scip::origprimal, SCIP_Mem::probmem, Scip::reopt, SCIP_Set::reopt_enable, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PROBLEM, SCIPerrorMessage, SCIPreoptCreate(), SCIPreoptFree(), SCIPsetSetReoptimizationParams(), Scip::set, and SCIP_Set::stage.
Referenced by SCIP_DECL_PARAMCHGD(), and SCIPcreateProb().
returns whether reoptimization is enabled or not
scip | SCIP data structure |
Definition at line 17357 of file scip.c.
References SCIP_Set::reopt_enable, and Scip::set.
Referenced by Exec(), readDiffFile(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIP_DECL_EVENTEXITSOL(), SCIP_DECL_EVENTINITSOL(), and SCIP_DECL_HEUREXEC().
SCIP_RETCODE SCIPgetReoptSolsRun | ( | SCIP * | scip, |
int | run, | ||
SCIP_SOL ** | sols, | ||
int | solssize, | ||
int * | nsols | ||
) |
returns the stored solutions corresponding to a given run
scip | SCIP data structure |
run | number of the run |
sols | array to store solutions |
solssize | size of the array |
nsols | pointer to store number of solutions |
Definition at line 17367 of file scip.c.
References Scip::reopt, SCIP_Set::reopt_enable, SCIP_CALL, SCIP_OKAY, SCIPreoptGetSolsRun(), and Scip::set.
Referenced by SCIP_DECL_HEUREXEC().
void SCIPresetReoptSolMarks | ( | SCIP * | scip | ) |
mark all stored solutions as not updated
scip | SCIP data structure |
Definition at line 17393 of file scip.c.
References Scip::reopt, SCIP_Set::reopt_enable, SCIPreoptResetSolMarks(), and Scip::set.
Referenced by SCIP_DECL_HEUREXEC().
SCIP_RETCODE SCIPcheckReoptRestart | ( | SCIP * | scip, |
SCIP_NODE * | node, | ||
SCIP_Bool * | restart | ||
) |
check if the reoptimization process should be restarted
scip
is in one of the following stages:
scip | SCIP data structure |
node | current node of the branch and bound tree (or NULL) |
restart | pointer to store of the reoptimitation process should be restarted |
Definition at line 17417 of file scip.c.
References checkStage(), FALSE, Scip::mem, SCIP_Prob::nvars, SCIP_Mem::probmem, Scip::reopt, SCIP_Set::reopt_enable, SCIP_CALL, SCIP_OKAY, SCIPreoptCheckRestart(), Scip::set, Scip::transprob, TRUE, and SCIP_Prob::vars.
Referenced by Exec().
SCIP_RETCODE SCIPaddReoptDualBndchg | ( | SCIP * | scip, |
SCIP_NODE * | node, | ||
SCIP_VAR * | var, | ||
SCIP_Real | newbound, | ||
SCIP_Real | oldbound | ||
) |
save bound change based on dual information in the reoptimization tree
scip
is in one of the following stages:
scip | SCIP data structure |
node | node of the search tree |
var | variable whose bound changed |
newbound | new bound of the variable |
oldbound | old bound of the variable |
Definition at line 16668 of file scip.c.
References checkStage(), FALSE, Scip::mem, SCIP_Mem::probmem, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIPreoptAddDualBndchg(), SCIPsetIsFeasGT(), SCIPsetIsFeasLT(), Scip::set, and TRUE.
Referenced by SCIP_DECL_EVENTEXEC().
returns the optimal solution of the last iteration or NULL of none exists
scip | SCIP data structure |
Definition at line 16686 of file scip.c.
References SCIP_Stat::nreoptruns, Scip::reopt, SCIP_Set::reopt_enable, SCIPreoptGetLastBestSol(), Scip::set, and Scip::stat.
Referenced by applyOfins(), SCIP_DECL_HEUREXEC(), and setupAndSolve().
SCIP_RETCODE SCIPgetReoptOldObjCoef | ( | SCIP * | scip, |
SCIP_VAR * | var, | ||
int | run, | ||
SCIP_Real * | objcoef | ||
) |
returns the objective coefficent of a given variable in a previous iteration
scip
is in one of the following stages:
scip | SCIP data structure |
var | variable |
run | number of the run |
objcoef | pointer to store the objective coefficient |
Definition at line 16713 of file scip.c.
References checkStage(), FALSE, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPreoptGetOldObjCoef(), SCIPvarGetIndex(), SCIPvarGetOrigvarSum(), SCIPvarIsActive(), SCIPvarIsOriginal(), and TRUE.
Referenced by SCIP_DECL_HEUREXEC().
returns whether we are in the restarting phase
scip
is in one of the following stages:
scip | SCIP data structure |
Definition at line 17576 of file scip.c.
References checkStage(), FALSE, SCIP_Stat::inrestart, SCIP_CALL_ABORT, Scip::stat, and TRUE.
Referenced by copyCuts(), SCIP_DECL_CONSINITSOL(), and SCIPconflictstoreClean().