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SCIP Doxygen Documentation: event_solvingphase.c Source File

75#define EVENTHDLR_NAME "solvingphase" 76#define EVENTHDLR_DESC "event handler to adjust settings depending on current stage" 78#define EVENTHDLR_EVENT SCIP_EVENTTYPE_BESTSOLFOUND | SCIP_EVENTTYPE_NODEBRANCHED | SCIP_EVENTTYPE_NODEFOCUSED 79#define TRANSITIONMETHODS "elor" 81#define DEFAULT_SETNAME "-" 82#define DEFAULT_TRANSITIONMETHOD 'r' 83#define DEFAULT_NODEOFFSET 50L 84#define DEFAULT_FALLBACK FALSE 85#define DEFAULT_INTERRUPTOPTIMAL FALSE 87#define DEFAULT_ENABLED FALSE 88#define DEFAULT_TESTMODE FALSE 90#define DEFAULT_USERESTART1TO2 FALSE 91#define DEFAULT_USERESTART2TO3 FALSE 92#define DEFAULT_USEEMPHSETTINGS TRUE 95#define DEFAULT_LOGREGRESSION_XTYPE 'n' 96#define LOGREGRESSION_XTYPES "lnt" 125struct

SCIP_EventhdlrData

127 char

logregression_xtype;

130 char

* improvesetname;

135 char

transitionmethod;

157 int

nnondefaultparams;

158 int

nondefaultparamssize;

163 int

nnodesbelowincumbent;

186 if

( estim1 < estim2 )

188 else if

( estim1 > estim2 )

199 if

( number1 < number2 )

201 else if

( number1 > number2 )

221

assert(eventhdlrdata->depthinfos !=

NULL

);

224 for

( n = 0; n <

nnodes

; ++n )

248

assert(pos >= 0 && pos < depthinfo->nminnodes);

249

assert(depthinfo->

minnodes

[pos] == node);

252

++eventhdlrdata->nrank1nodes;

257

++eventhdlrdata->nnodesbelowincumbent;

261

eventhdlrdata->nnodesleft +=

nnodes

;

277

assert(node !=

NULL

);

293

--eventhdlrdata->nrank1nodes;

311 return

eventhdlrdata->nrank1nodes;

330 return

eventhdlrdata->nnodesbelowincumbent;

355

assert(eventhdlrdata !=

NULL

);

358 for

( d = 0; d < eventhdlrdata->maxdepth; ++d )

359

eventhdlrdata->depthinfos[d]->nminnodes = 0;

361

eventhdlrdata->nrank1nodes = 0;

362

eventhdlrdata->nnodesbelowincumbent = 0;

363

eventhdlrdata->nnodesleft = 0;

365

nleaves = nchildren = nsiblings = 0;

377

eventhdlrdata->newbestsol =

FALSE

;

390

assert(depthinfo !=

NULL

);

397

(*depthinfo)->nsolvednodes = 0;

398

(*depthinfo)->nminnodes = 0;

399

(*depthinfo)->minnodescapacity = 2;

415

assert(depthinfo !=

NULL

);

416

assert(*depthinfo !=

NULL

);

417

assert((*depthinfo)->minnodes !=

NULL

);

437

assert(node !=

NULL

);

438

assert(eventhdlrdata !=

NULL

);

442

assert(depthinfo !=

NULL

);

453

eventhdlrdata->nnodesbelowincumbent--;

460

--(eventhdlrdata->nrank1nodes);

467

--eventhdlrdata->nnodesleft;

482

oldsize = eventhdlrdata->maxdepth;

491 else if

( nodedepth + 1 >= eventhdlrdata->maxdepth )

493

assert(nodedepth > 0);

495

newsize = 2 * nodedepth;

499 if

( newsize > oldsize )

503 for

( c = oldsize; c < newsize; ++c )

508

eventhdlrdata->maxdepth = newsize;

510

assert(newsize > nodedepth);

524

assert(node !=

NULL

);

525

assert(eventhdlrdata !=

NULL

);

567 for

( n = 0; n <

nnodes

; ++n )

577 for

( n = 0; n <

nnodes

; ++n )

587 for

( n = 0; n <

nnodes

; ++n )

607 switch

( eventhdlrdata->logregression_xtype )

655

assert(eventhdlrdata !=

NULL

);

657

regression = eventhdlrdata->regression;

658

assert(regression !=

NULL

);

664

currentx =

getX

(

scip

, eventhdlrdata);

700 return

((

SCIPgetNNodes

(

scip

) > eventhdlrdata->nodeoffset) && (eventhdlrdata->nnodesbelowincumbent == 0));

735

lambda = (axisintercept - primalbound) / (firstprimalbound - primalbound);

754

referencevalue = eventhdlrdata->optimalvalue;

761 if

(

EPSZ

((primalbound - referencevalue)/max, 1e-9) )

778 switch

( eventhdlrdata->transitionmethod )

838 else if

( eventhdlrdata->solvingphase !=

SOLVINGPHASE_PROOF

|| eventhdlrdata->fallback )

855 switch

(eventhdlrdata->solvingphase)

868 SCIPdebugMsg

(

scip

,

"Unknown solving phase: %d -> ABORT!\n "

, eventhdlrdata->solvingphase);

887 char

* paramfilename =

NULL

;

890 switch

(eventhdlrdata->solvingphase)

893

paramfilename = eventhdlrdata->feassetname;

896

paramfilename = eventhdlrdata->improvesetname;

899

paramfilename = eventhdlrdata->proofsetname;

903 SCIPdebugMsg

(

scip

,

"Unknown solving phase: %d -> ABORT!\n "

, eventhdlrdata->solvingphase);

907

assert(paramfilename !=

NULL

);

913

file = fopen(paramfilename,

"r"

);

918 SCIPwarningMessage

(

scip

,

"Parameter file <%s> not found--keeping settings as before.\n"

, paramfilename);

942 const char

* relevantparams[] = {

945 "limits/totalnodes"

,

946 "limits/stallnodes"

,

953 "limits/maxorigsol"

,

955 "limits/autorestartnodes"

,

957 "solvingphases/enabled"

,

958 "solvingphases/fallback"

,

959 "solvingphases/interruptoptimal"

,

960 "solvingphases/nodeoffset"

,

961 "solvingphases/feassetname"

,

962 "solvingphases/proofsetname"

,

963 "solvingphases/optimalvalue"

,

964 "solvingphases/improvesetname"

,

965 "solvingphases/testmode"

,

966 "solvingphases/transitionmethod"

,

967 "solvingphases/useemphsettings"

,

968 "solvingphases/userestart1to2"

,

969 "solvingphases/userestart2to3"

,

970 "solvingphases/xtype" 972 int

nrelevantparams = 28;

975 for

( p = 0; p < nrelevantparams; ++p )

988 for

( p = 0; p < eventhdlrdata->nnondefaultparams; ++p )

1014 if

( eventhdlrdata->useemphsettings )

1048

oldsolvingphase = eventhdlrdata->solvingphase;

1054 if

( oldsolvingphase == eventhdlrdata->solvingphase )

1058 if

( eventhdlrdata->solvingphase ==

SOLVINGPHASE_PROOF

&& eventhdlrdata->transitionmethod ==

'o'

&&

1059

eventhdlrdata->interruptoptimal )

1070 else if

( eventhdlrdata->solvingphase ==

SOLVINGPHASE_PROOF

&& eventhdlrdata->userestart2to3 )

1099

regressionx =

getX

(

scip

, eventhdlrdata);

1103 if

(

SCIPisEQ

(

scip

, eventhdlrdata->lastx, regressionx) )

1110

eventhdlrdata->lastx = regressionx;

1111

eventhdlrdata->lasty = regressiony;

1127 switch

( eventtype )

1131

eventhdlrdata->newbestsol =

TRUE

;

1155

eventhdlrdata->newbestsol =

FALSE

;

1190

assert(eventhdlrdata !=

NULL

);

1194

eventhdlrdata->logreached =

TRUE

;

1200

eventhdlrdata->rank1reached =

TRUE

;

1207

eventhdlrdata->estimatereached =

TRUE

;

1214

eventhdlrdata->optimalreached =

TRUE

;

1227#ifdef SCIP_DISABLED_CODE 1232

assert(eventhdlr !=

NULL

);

1241#define eventCopySolvingphase NULL 1251

assert(eventhdlr !=

NULL

);

1255

assert(eventhdlrdata !=

NULL

);

1273

eventhdlrdata->depthinfos =

NULL

;

1274

eventhdlrdata->maxdepth = 0;

1275

eventhdlrdata->nnodesbelowincumbent = 0;

1276

eventhdlrdata->nnodesleft = 0;

1277

eventhdlrdata->nrank1nodes = 0;

1279

eventhdlrdata->newbestsol =

FALSE

;

1294 if

( eventhdlrdata->maxdepth > 0 )

1299 for

( c = 0; c < eventhdlrdata->maxdepth; ++c )

1306

eventhdlrdata->maxdepth = 0;

1326

eventhdlrdata->nnondefaultparams = 0;

1327

eventhdlrdata->nondefaultparams =

NULL

;

1328

eventhdlrdata->nondefaultparamssize = 0;

1331 for

( p = 0; p < nparams; ++p )

1338 if

( eventhdlrdata->nnondefaultparams == 0 )

1341

eventhdlrdata->nondefaultparamssize = 8;

1343 else if

( eventhdlrdata->nnondefaultparams == eventhdlrdata->nondefaultparamssize )

1345

eventhdlrdata->nondefaultparamssize *= 2;

1347

eventhdlrdata->nnondefaultparams, eventhdlrdata->nondefaultparamssize) );

1350

eventhdlrdata->nondefaultparams[eventhdlrdata->nnondefaultparams++] = param;

1364

assert(eventhdlr !=

NULL

);

1368

assert(eventhdlrdata !=

NULL

);

1374

eventhdlrdata->optimalreached =

FALSE

;

1375

eventhdlrdata->logreached =

FALSE

;

1376

eventhdlrdata->rank1reached =

FALSE

;

1377

eventhdlrdata->estimatereached =

FALSE

;

1378

eventhdlrdata->nnondefaultparams = 0;

1379

eventhdlrdata->nondefaultparams =

NULL

;

1380

eventhdlrdata->nondefaultparamssize = 0;

1383 if

( eventhdlrdata->enabled )

1392 if

( eventhdlrdata->enabled || eventhdlrdata->testmode )

1411

assert(eventhdlr !=

NULL

);

1415

assert(eventhdlrdata !=

NULL

);

1432

assert(eventhdlr !=

NULL

);

1443 if

( eventhdlrdata->enabled )

1449 if

( eventhdlrdata->testmode )

1462#define DISP_NAME_NRANK1NODES "nrank1nodes" 1463#define DISP_DESC_NRANK1NODES "current number of rank1 nodes left" 1464#define DISP_HEAD_NRANK1NODES "rank1" 1465#define DISP_WIDT_NRANK1NODES 7 1466#define DISP_PRIO_NRANK1NODES 40000 1467#define DISP_POSI_NRANK1NODES 500 1468#define DISP_STRI_NRANK1NODES TRUE 1474

assert(disp !=

NULL

);

1485#define DISP_NAME_NNODESBELOWINC "nnodesbelowinc" 1486#define DISP_DESC_NNODESBELOWINC "current number of nodes with an estimate better than the current incumbent" 1487#define DISP_HEAD_NNODESBELOWINC "nbInc" 1488#define DISP_WIDT_NNODESBELOWINC 6 1489#define DISP_PRIO_NNODESBELOWINC 40000 1490#define DISP_POSI_NNODESBELOWINC 550 1491#define DISP_STRI_NNODESBELOWINC TRUE 1497

assert(disp !=

NULL

);

1516

eventhdlrdata =

NULL

;

1518

assert(eventhdlrdata !=

NULL

);

1520

eventhdlrdata->feassetname =

NULL

;

1521

eventhdlrdata->improvesetname =

NULL

;

1522

eventhdlrdata->proofsetname =

NULL

;

1524

eventhdlrdata->depthinfos =

NULL

;

1525

eventhdlrdata->maxdepth = 0;

1526

eventhdlrdata->eventfilterpos = -1;

1529

eventhdlrdata->regression =

NULL

;

1536

eventExecSolvingphase, eventhdlrdata) );

1537

assert(eventhdlr !=

NULL

);

1541 NULL

,

NULL

,

NULL

,

NULL

,

NULL

,

NULL

, dispOutputNRank1Nodes,

NULL

,

DISP_WIDT_NRANK1NODES

,

DISP_PRIO_NRANK1NODES

,

DISP_POSI_NRANK1NODES

,

1544 NULL

,

NULL

,

NULL

,

NULL

,

NULL

,

NULL

, dispOutputNnodesbelowinc,

NULL

,

DISP_WIDT_NNODESBELOWINC

,

DISP_PRIO_NNODESBELOWINC

,

DISP_POSI_NNODESBELOWINC

,

1576 "transition method: Possible options are 'e'stimate,'l'ogarithmic regression,'o'ptimal-value based,'r'ank-1"

,

1579 "should the event handler interrupt the solving process after optimal solution was found?"

,

1583 "should a restart be applied between the feasibility and improvement phase?"

,

1587 "should a restart be applied between the improvement and the proof phase?"

,

1598 "should emphasis settings for the solving phases be used, or settings files?"

,

#define DEFAULT_USEEMPHSETTINGS

static SCIP_Bool checkRankOneTransition(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_RETCODE releaseNodeInformation(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata, SCIP_NODE *node)

#define DISP_PRIO_NNODESBELOWINC

#define DEFAULT_LOGREGRESSION_XTYPE

#define DISP_POSI_NRANK1NODES

#define DEFAULT_USERESTART1TO2

static SCIP_DECL_EVENTINIT(eventInitSolvingphase)

#define DEFAULT_INTERRUPTOPTIMAL

static SCIP_DECL_EVENTEXEC(eventExecSolvingphase)

static SCIP_Bool transitionPhase3(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_RETCODE applySolvingPhase(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DISP_DESC_NRANK1NODES

static SCIP_Bool checkEstimateCriterion(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_RETCODE adaptSolverBehavior(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DISP_HEAD_NNODESBELOWINC

static SCIP_RETCODE addNodesInformation(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata, SCIP_NODE **nodes, int nnodes)

#define LOGREGRESSION_XTYPES

static SCIP_Bool checkLogCriterion(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

@ SOLVINGPHASE_IMPROVEMENT

@ SOLVINGPHASE_FEASIBILITY

@ SOLVINGPHASE_UNINITIALIZED

static void testCriteria(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static int getNRank1Nodes(SCIP *scip)

static SCIP_DECL_SORTPTRCOMP(sortCompTreeinfo)

static SCIP_Real getX(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_DECL_EVENTFREE(eventFreeSolvingphase)

#define DISP_NAME_NNODESBELOWINC

#define DISP_WIDT_NNODESBELOWINC

enum SolvingPhase SOLVINGPHASE

static SCIP_DECL_EVENTINITSOL(eventInitsolSolvingphase)

#define DEFAULT_NODEOFFSET

static SCIP_DECL_EVENTEXIT(eventExitSolvingphase)

static SCIP_RETCODE collectNondefaultParams(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_DECL_EVENTEXITSOL(eventExitsolSolvingphase)

static void releaseNodeFromDepthInfo(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata, SCIP_NODE *node)

static SCIP_RETCODE fixOrUnfixRelevantParameters(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata, SCIP_Bool fix)

static void determineSolvingPhase(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DISP_HEAD_NRANK1NODES

#define DEFAULT_TRANSITIONMETHOD

#define DISP_STRI_NRANK1NODES

static int getNNodesBelowIncumbent(SCIP *scip)

static void removeNode(SCIP_NODE *node, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DISP_PRIO_NRANK1NODES

SCIP_RETCODE SCIPincludeEventHdlrSolvingphase(SCIP *scip)

static SCIP_RETCODE changeEmphasisParameters(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DISP_WIDT_NRANK1NODES

static SCIP_RETCODE createDepthinfo(SCIP *scip, DEPTHINFO **depthinfo)

static SCIP_DECL_DISPOUTPUT(dispOutputNRank1Nodes)

static int checkLeavesBelowIncumbent(SCIP *scip)

static SCIP_Real getCurrentRegressionTangentAxisIntercept(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DEFAULT_USERESTART2TO3

#define DISP_POSI_NNODESBELOWINC

#define DISP_NAME_NRANK1NODES

#define eventCopySolvingphase

#define DISP_DESC_NNODESBELOWINC

static SCIP_RETCODE updateLogRegression(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_RETCODE freeDepthinfo(SCIP *scip, DEPTHINFO **depthinfo)

static SCIP_RETCODE recomputeNodeInformation(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define DISP_STRI_NNODESBELOWINC

static SCIP_RETCODE updateDataStructures(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata, SCIP_EVENTTYPE eventtype)

static SCIP_RETCODE ensureDepthInfoArraySize(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata, SCIP_NODE *node)

static SCIP_RETCODE changeParametersUsingSettingsFiles(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

static SCIP_Bool checkOptimalSolution(SCIP *scip, SCIP_EVENTHDLRDATA *eventhdlrdata)

#define TRANSITIONMETHODS

eventhdlr for solving phase dependent parameter adjustment

SCIP_STAGE SCIPgetStage(SCIP *scip)

void SCIPverbMessage(SCIP *scip, SCIP_VERBLEVEL msgverblevel, FILE *file, const char *formatstr,...)

SCIP_MESSAGEHDLR * SCIPgetMessagehdlr(SCIP *scip)

void SCIPwarningMessage(SCIP *scip, const char *formatstr,...)

SCIP_RETCODE SCIPaddLongintParam(SCIP *scip, const char *name, const char *desc, SCIP_Longint *valueptr, SCIP_Bool isadvanced, SCIP_Longint defaultvalue, SCIP_Longint minvalue, SCIP_Longint maxvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)

SCIP_RETCODE SCIPaddCharParam(SCIP *scip, const char *name, const char *desc, char *valueptr, SCIP_Bool isadvanced, char defaultvalue, const char *allowedvalues, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)

int SCIPgetNParams(SCIP *scip)

SCIP_RETCODE SCIPaddStringParam(SCIP *scip, const char *name, const char *desc, char **valueptr, SCIP_Bool isadvanced, const char *defaultvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)

SCIP_RETCODE SCIPaddRealParam(SCIP *scip, const char *name, const char *desc, SCIP_Real *valueptr, SCIP_Bool isadvanced, SCIP_Real defaultvalue, SCIP_Real minvalue, SCIP_Real maxvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)

SCIP_RETCODE SCIPreadParams(SCIP *scip, const char *filename)

SCIP_RETCODE SCIPunfixParam(SCIP *scip, const char *name)

SCIP_RETCODE SCIPsetEmphasis(SCIP *scip, SCIP_PARAMEMPHASIS paramemphasis, SCIP_Bool quiet)

SCIP_PARAM ** SCIPgetParams(SCIP *scip)

SCIP_RETCODE SCIPaddBoolParam(SCIP *scip, const char *name, const char *desc, SCIP_Bool *valueptr, SCIP_Bool isadvanced, SCIP_Bool defaultvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)

SCIP_RETCODE SCIPfixParam(SCIP *scip, const char *name)

const char * SCIPdispGetName(SCIP_DISP *disp)

void SCIPdispInt(SCIP_MESSAGEHDLR *messagehdlr, FILE *file, int val, int width)

SCIP_RETCODE SCIPincludeDisp(SCIP *scip, const char *name, const char *desc, const char *header, SCIP_DISPSTATUS dispstatus, SCIP_DECL_DISPCOPY((*dispcopy)), SCIP_DECL_DISPFREE((*dispfree)), SCIP_DECL_DISPINIT((*dispinit)), SCIP_DECL_DISPEXIT((*dispexit)), SCIP_DECL_DISPINITSOL((*dispinitsol)), SCIP_DECL_DISPEXITSOL((*dispexitsol)), SCIP_DECL_DISPOUTPUT((*dispoutput)), SCIP_DISPDATA *dispdata, int width, int priority, int position, SCIP_Bool stripline)

SCIP_RETCODE SCIPsetEventhdlrInitsol(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTINITSOL((*eventinitsol)))

SCIP_RETCODE SCIPsetEventhdlrCopy(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTCOPY((*eventcopy)))

SCIP_RETCODE SCIPincludeEventhdlrBasic(SCIP *scip, SCIP_EVENTHDLR **eventhdlrptr, const char *name, const char *desc, SCIP_DECL_EVENTEXEC((*eventexec)), SCIP_EVENTHDLRDATA *eventhdlrdata)

SCIP_EVENTHDLR * SCIPfindEventhdlr(SCIP *scip, const char *name)

const char * SCIPeventhdlrGetName(SCIP_EVENTHDLR *eventhdlr)

SCIP_EVENTHDLRDATA * SCIPeventhdlrGetData(SCIP_EVENTHDLR *eventhdlr)

SCIP_RETCODE SCIPsetEventhdlrExitsol(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTEXITSOL((*eventexitsol)))

void SCIPeventhdlrSetData(SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTHDLRDATA *eventhdlrdata)

SCIP_RETCODE SCIPsetEventhdlrFree(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTFREE((*eventfree)))

SCIP_RETCODE SCIPsetEventhdlrExit(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTEXIT((*eventexit)))

SCIP_RETCODE SCIPsetEventhdlrInit(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTINIT((*eventinit)))

SCIP_EVENTTYPE SCIPeventGetType(SCIP_EVENT *event)

SCIP_RETCODE SCIPcatchEvent(SCIP *scip, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int *filterpos)

SCIP_NODE * SCIPeventGetNode(SCIP_EVENT *event)

#define SCIPfreeBlockMemoryArray(scip, ptr, num)

#define SCIPallocBlockMemoryArray(scip, ptr, num)

#define SCIPreallocBlockMemoryArray(scip, ptr, oldnum, newnum)

#define SCIPfreeBlockMemory(scip, ptr)

#define SCIPfreeBlockMemoryArrayNull(scip, ptr, num)

#define SCIPallocBlockMemory(scip, ptr)

SCIP_NODETYPE SCIPnodeGetType(SCIP_NODE *node)

SCIP_Longint SCIPnodeGetNumber(SCIP_NODE *node)

SCIP_Real SCIPnodeGetEstimate(SCIP_NODE *node)

int SCIPnodeGetDepth(SCIP_NODE *node)

int SCIPgetNSols(SCIP *scip)

SCIP_RETCODE SCIPrestartSolve(SCIP *scip)

SCIP_RETCODE SCIPinterruptSolve(SCIP *scip)

SCIP_Real SCIPgetPrimalbound(SCIP *scip)

SCIP_Real SCIPgetUpperbound(SCIP *scip)

SCIP_Longint SCIPgetNNodes(SCIP *scip)

SCIP_Real SCIPgetFirstPrimalBound(SCIP *scip)

SCIP_Longint SCIPgetNTotalNodes(SCIP *scip)

SCIP_Longint SCIPgetNDelayedCutoffs(SCIP *scip)

SCIP_Longint SCIPgetNLPIterations(SCIP *scip)

SCIP_Real SCIPgetSolvingTime(SCIP *scip)

SCIP_Real SCIPinfinity(SCIP *scip)

SCIP_Bool SCIPisGE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool SCIPisInfinity(SCIP *scip, SCIP_Real val)

SCIP_Bool SCIPisGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool SCIPisNegative(SCIP *scip, SCIP_Real val)

SCIP_Bool SCIPisEQ(SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool SCIPisLT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)

int SCIPgetNChildren(SCIP *scip)

SCIP_RETCODE SCIPgetOpenNodesData(SCIP *scip, SCIP_NODE ***leaves, SCIP_NODE ***children, SCIP_NODE ***siblings, int *nleaves, int *nchildren, int *nsiblings)

SCIP_RETCODE SCIPgetChildren(SCIP *scip, SCIP_NODE ***children, int *nchildren)

int SCIPgetNNodesLeft(SCIP *scip)

SCIP_RETCODE SCIPgetLeaves(SCIP *scip, SCIP_NODE ***leaves, int *nleaves)

SCIP_RETCODE SCIPgetSiblings(SCIP *scip, SCIP_NODE ***siblings, int *nsiblings)

SCIP_NODE * SCIPgetCurrentNode(SCIP *scip)

void SCIPregressionRemoveObservation(SCIP_REGRESSION *regression, SCIP_Real x, SCIP_Real y)

void SCIPregressionAddObservation(SCIP_REGRESSION *regression, SCIP_Real x, SCIP_Real y)

SCIP_Real SCIPregressionGetIntercept(SCIP_REGRESSION *regression)

int SCIPregressionGetNObservations(SCIP_REGRESSION *regression)

void SCIPregressionFree(SCIP_REGRESSION **regression)

SCIP_RETCODE SCIPregressionCreate(SCIP_REGRESSION **regression)

void SCIPregressionReset(SCIP_REGRESSION *regression)

SCIP_Real SCIPregressionGetSlope(SCIP_REGRESSION *regression)

SCIP_Bool SCIPsortedvecFindPtr(void **ptrarray, SCIP_DECL_SORTPTRCOMP((*ptrcomp)), void *val, int len, int *pos)

void SCIPsortedvecInsertPtr(void **ptrarray, SCIP_DECL_SORTPTRCOMP((*ptrcomp)), void *keyval, int *len, int *pos)

void SCIPsortedvecDelPosPtr(void **ptrarray, SCIP_DECL_SORTPTRCOMP((*ptrcomp)), int pos, int *len)

SCIP_Bool SCIPparamIsDefault(SCIP_PARAM *param)

const char * SCIPparamGetName(SCIP_PARAM *param)

SCIP_Bool SCIPparamIsFixed(SCIP_PARAM *param)

public methods for displaying runtime statistics

public methods for managing events

public methods for message output

public data structures and miscellaneous methods

methods for sorting joint arrays of various types

public methods for handling parameter settings

public methods for branch and bound tree

public methods for display handler plugins

public methods for event handler plugins and event handlers

public methods for memory management

public methods for message handling

public methods for numerical tolerances

public methods for SCIP parameter handling

public methods for solutions

public methods for querying solving statistics

public methods for timing

public methods for the branch-and-bound tree

#define SCIP_EVENTTYPE_NODEFOCUSED

struct SCIP_EventhdlrData SCIP_EVENTHDLRDATA

#define SCIP_EVENTTYPE_NODEBRANCHED

#define SCIP_DECL_EVENTCOPY(x)

#define SCIP_EVENTTYPE_BESTSOLFOUND

@ SCIP_PARAMEMPHASIS_DEFAULT

@ SCIP_PARAMEMPHASIS_PHASEIMPROVE

@ SCIP_PARAMEMPHASIS_PHASEPROOF

@ SCIP_PARAMEMPHASIS_PHASEFEAS

enum SCIP_ParamEmphasis SCIP_PARAMEMPHASIS

enum SCIP_Retcode SCIP_RETCODE


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