Scippy

SCIP

Solving Constraint Integer Programs

Detailed Description

methods for node selector plugin management

Functions

const char * SCIPnodeselGetName (SCIP_NODESEL *nodesel)
 
const char * SCIPnodeselGetDesc (SCIP_NODESEL *nodesel)
 
int SCIPnodeselGetStdPriority (SCIP_NODESEL *nodesel)
 
int SCIPnodeselGetMemsavePriority (SCIP_NODESEL *nodesel)
 
SCIP_NODESELDATASCIPnodeselGetData (SCIP_NODESEL *nodesel)
 
void SCIPnodeselSetData (SCIP_NODESEL *nodesel, SCIP_NODESELDATA *nodeseldata)
 
SCIP_Bool SCIPnodeselIsInitialized (SCIP_NODESEL *nodesel)
 
SCIP_Real SCIPnodeselGetSetupTime (SCIP_NODESEL *nodesel)
 
SCIP_Real SCIPnodeselGetTime (SCIP_NODESEL *nodesel)
 
SCIP_RETCODE SCIPincludeNodesel (SCIP *scip, const char *name, const char *desc, int stdpriority, int memsavepriority, SCIP_DECL_NODESELCOPY((*nodeselcopy)), SCIP_DECL_NODESELFREE((*nodeselfree)), SCIP_DECL_NODESELINIT((*nodeselinit)), SCIP_DECL_NODESELEXIT((*nodeselexit)), SCIP_DECL_NODESELINITSOL((*nodeselinitsol)), SCIP_DECL_NODESELEXITSOL((*nodeselexitsol)), SCIP_DECL_NODESELSELECT((*nodeselselect)), SCIP_DECL_NODESELCOMP((*nodeselcomp)), SCIP_NODESELDATA *nodeseldata)
 
SCIP_RETCODE SCIPincludeNodeselBasic (SCIP *scip, SCIP_NODESEL **nodesel, const char *name, const char *desc, int stdpriority, int memsavepriority, SCIP_DECL_NODESELSELECT((*nodeselselect)), SCIP_DECL_NODESELCOMP((*nodeselcomp)), SCIP_NODESELDATA *nodeseldata)
 
SCIP_RETCODE SCIPsetNodeselCopy (SCIP *scip, SCIP_NODESEL *nodesel, SCIP_DECL_NODESELCOPY((*nodeselcopy)))
 
SCIP_RETCODE SCIPsetNodeselFree (SCIP *scip, SCIP_NODESEL *nodesel, SCIP_DECL_NODESELFREE((*nodeselfree)))
 
SCIP_RETCODE SCIPsetNodeselInit (SCIP *scip, SCIP_NODESEL *nodesel, SCIP_DECL_NODESELINIT((*nodeselinit)))
 
SCIP_RETCODE SCIPsetNodeselExit (SCIP *scip, SCIP_NODESEL *nodesel, SCIP_DECL_NODESELEXIT((*nodeselexit)))
 
SCIP_RETCODE SCIPsetNodeselInitsol (SCIP *scip, SCIP_NODESEL *nodesel, SCIP_DECL_NODESELINITSOL((*nodeselinitsol)))
 
SCIP_RETCODE SCIPsetNodeselExitsol (SCIP *scip, SCIP_NODESEL *nodesel, SCIP_DECL_NODESELEXITSOL((*nodeselexitsol)))
 
SCIP_NODESELSCIPfindNodesel (SCIP *scip, const char *name)
 
SCIP_NODESEL ** SCIPgetNodesels (SCIP *scip)
 
int SCIPgetNNodesels (SCIP *scip)
 
SCIP_RETCODE SCIPsetNodeselStdPriority (SCIP *scip, SCIP_NODESEL *nodesel, int priority)
 
SCIP_RETCODE SCIPsetNodeselMemsavePriority (SCIP *scip, SCIP_NODESEL *nodesel, int priority)
 
SCIP_NODESELSCIPgetNodesel (SCIP *scip)
 

Function Documentation

◆ SCIPnodeselGetName()

◆ SCIPnodeselGetDesc()

const char* SCIPnodeselGetDesc ( SCIP_NODESEL nodesel)

gets description of node selector

Parameters
nodeselnode selector

Definition at line 1003 of file nodesel.c.

References SCIP_Nodesel::desc, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

◆ SCIPnodeselGetStdPriority()

int SCIPnodeselGetStdPriority ( SCIP_NODESEL nodesel)

gets priority of node selector in standard mode

Parameters
nodeselnode selector

Definition at line 1013 of file nodesel.c.

References NULL, and SCIP_Nodesel::stdpriority.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIP_DECL_NODESELINITSOL(), SCIPsetIncludeNodesel(), and turnoffNodeSelector().

◆ SCIPnodeselGetMemsavePriority()

int SCIPnodeselGetMemsavePriority ( SCIP_NODESEL nodesel)

gets priority of node selector in memory saving mode

Parameters
nodeselnode selector

Definition at line 1037 of file nodesel.c.

References SCIP_Nodesel::memsavepriority, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPsetFindEventhdlr().

◆ SCIPnodeselGetData()

◆ SCIPnodeselSetData()

void SCIPnodeselSetData ( SCIP_NODESEL nodesel,
SCIP_NODESELDATA nodeseldata 
)

sets user data of node selector; user has to free old data in advance!

Parameters
nodeselnode selector
nodeseldatanew node selector user data

Definition at line 1071 of file nodesel.c.

References SCIP_Nodesel::nodeseldata, and NULL.

Referenced by SCIP_DECL_NODESELFREE().

◆ SCIPnodeselIsInitialized()

SCIP_Bool SCIPnodeselIsInitialized ( SCIP_NODESEL nodesel)

is node selector initialized?

Parameters
nodeselnode selector

Definition at line 1150 of file nodesel.c.

References SCIP_Nodesel::initialized, and NULL.

Referenced by SCIPsetSortComprs().

◆ SCIPnodeselGetSetupTime()

SCIP_Real SCIPnodeselGetSetupTime ( SCIP_NODESEL nodesel)

gets time in seconds used in this node selector for setting up for next stages

Parameters
nodeselnode selector

Definition at line 1172 of file nodesel.c.

References NULL, SCIPclockGetTime(), and SCIP_Nodesel::setuptime.

◆ SCIPnodeselGetTime()

SCIP_Real SCIPnodeselGetTime ( SCIP_NODESEL nodesel)

gets time in seconds used in this node selector

Parameters
nodeselnode selector

Definition at line 1182 of file nodesel.c.

References SCIP_Nodesel::nodeseltime, NULL, and SCIPclockGetTime().

◆ SCIPincludeNodesel()

SCIP_RETCODE SCIPincludeNodesel ( SCIP scip,
const char *  name,
const char *  desc,
int  stdpriority,
int  memsavepriority,
SCIP_DECL_NODESELCOPY((*nodeselcopy))  ,
SCIP_DECL_NODESELFREE((*nodeselfree))  ,
SCIP_DECL_NODESELINIT((*nodeselinit))  ,
SCIP_DECL_NODESELEXIT((*nodeselexit))  ,
SCIP_DECL_NODESELINITSOL((*nodeselinitsol))  ,
SCIP_DECL_NODESELEXITSOL((*nodeselexitsol))  ,
SCIP_DECL_NODESELSELECT((*nodeselselect))  ,
SCIP_DECL_NODESELCOMP((*nodeselcomp))  ,
SCIP_NODESELDATA nodeseldata 
)

creates a node selector and includes it in SCIP.

Note
method has all node selector callbacks as arguments and is thus changed every time a new callback is added in future releases; consider using SCIPincludeNodeselBasic() and setter functions if you seek for a method which is less likely to change in future releases
Parameters
scipSCIP data structure
namename of node selector
descdescription of node selector
stdprioritypriority of the node selector in standard mode
memsaveprioritypriority of the node selector in memory saving mode
nodeseldatanode selector data

Definition at line 8696 of file scip.c.

References checkStage(), FALSE, Scip::mem, Scip::messagehdlr, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPerrorMessage, SCIPfindNodesel(), SCIPnodeselCreate(), SCIPsetIncludeNodesel(), Scip::set, SCIP_Mem::setmem, and TRUE.

Referenced by SCIPincludeObjNodesel().

◆ SCIPincludeNodeselBasic()

SCIP_RETCODE SCIPincludeNodeselBasic ( SCIP scip,
SCIP_NODESEL **  nodesel,
const char *  name,
const char *  desc,
int  stdpriority,
int  memsavepriority,
SCIP_DECL_NODESELSELECT((*nodeselselect))  ,
SCIP_DECL_NODESELCOMP((*nodeselcomp))  ,
SCIP_NODESELDATA nodeseldata 
)

Creates a node selector and includes it in SCIP with its most fundamental callbacks. All non-fundamental (or optional) callbacks as, e.g., init and exit callbacks, will be set to NULL. Optional callbacks can be set via specific setter functions, see SCIPsetNodeselCopy(), SCIPsetNodeselFree(), SCIPsetNodeselInit(), SCIPsetNodeselExit(), SCIPsetNodeselInitsol(), and SCIPsetNodeselExitsol()

Note
if you want to set all callbacks with a single method call, consider using SCIPincludeNodesel() instead
Parameters
scipSCIP data structure
nodeselreference to a node selector, or NULL
namename of node selector
descdescription of node selector
stdprioritypriority of the node selector in standard mode
memsaveprioritypriority of the node selector in memory saving mode
nodeseldatanode selector data

Definition at line 8740 of file scip.c.

References checkStage(), FALSE, Scip::mem, Scip::messagehdlr, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPerrorMessage, SCIPfindNodesel(), SCIPnodeselCreate(), SCIPsetIncludeNodesel(), Scip::set, SCIP_Mem::setmem, and TRUE.

Referenced by SCIPincludeNodeselBfs(), SCIPincludeNodeselBreadthfirst(), SCIPincludeNodeselDfs(), SCIPincludeNodeselEstimate(), SCIPincludeNodeselHybridestim(), SCIPincludeNodeselRestartdfs(), and SCIPincludeNodeselUct().

◆ SCIPsetNodeselCopy()

SCIP_RETCODE SCIPsetNodeselCopy ( SCIP scip,
SCIP_NODESEL nodesel,
SCIP_DECL_NODESELCOPY((*nodeselcopy))   
)

sets copy method of node selector

Parameters
scipSCIP data structure
nodeselnode selector

Definition at line 8776 of file scip.c.

References checkStage(), FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPnodeselSetCopy(), and TRUE.

Referenced by SCIPincludeNodeselBfs(), SCIPincludeNodeselBreadthfirst(), SCIPincludeNodeselDfs(), SCIPincludeNodeselEstimate(), SCIPincludeNodeselHybridestim(), SCIPincludeNodeselRestartdfs(), and SCIPincludeNodeselUct().

◆ SCIPsetNodeselFree()

SCIP_RETCODE SCIPsetNodeselFree ( SCIP scip,
SCIP_NODESEL nodesel,
SCIP_DECL_NODESELFREE((*nodeselfree))   
)

sets destructor method of node selector

Parameters
scipSCIP data structure
nodeselnode selector

Definition at line 8792 of file scip.c.

References checkStage(), FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPnodeselSetFree(), and TRUE.

Referenced by SCIPincludeNodeselBfs(), SCIPincludeNodeselEstimate(), SCIPincludeNodeselHybridestim(), SCIPincludeNodeselRestartdfs(), and SCIPincludeNodeselUct().

◆ SCIPsetNodeselInit()

SCIP_RETCODE SCIPsetNodeselInit ( SCIP scip,
SCIP_NODESEL nodesel,
SCIP_DECL_NODESELINIT((*nodeselinit))   
)

sets initialization method of node selector

Parameters
scipSCIP data structure
nodeselnode selector

Definition at line 8808 of file scip.c.

References checkStage(), FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPnodeselSetInit(), and TRUE.

◆ SCIPsetNodeselExit()

SCIP_RETCODE SCIPsetNodeselExit ( SCIP scip,
SCIP_NODESEL nodesel,
SCIP_DECL_NODESELEXIT((*nodeselexit))   
)

sets deinitialization method of node selector

Parameters
scipSCIP data structure
nodeselnode selector

Definition at line 8824 of file scip.c.

References checkStage(), FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPnodeselSetExit(), and TRUE.

◆ SCIPsetNodeselInitsol()

SCIP_RETCODE SCIPsetNodeselInitsol ( SCIP scip,
SCIP_NODESEL nodesel,
SCIP_DECL_NODESELINITSOL((*nodeselinitsol))   
)

sets solving process initialization method of node selector

Parameters
scipSCIP data structure
nodeselnode selector

Definition at line 8840 of file scip.c.

References checkStage(), FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPnodeselSetInitsol(), and TRUE.

Referenced by SCIPincludeNodeselRestartdfs(), and SCIPincludeNodeselUct().

◆ SCIPsetNodeselExitsol()

SCIP_RETCODE SCIPsetNodeselExitsol ( SCIP scip,
SCIP_NODESEL nodesel,
SCIP_DECL_NODESELEXITSOL((*nodeselexitsol))   
)

sets solving process deinitialization method of node selector

Parameters
scipSCIP data structure
nodeselnode selector

Definition at line 8856 of file scip.c.

References checkStage(), FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPnodeselSetExitsol(), and TRUE.

Referenced by SCIPincludeNodeselUct().

◆ SCIPfindNodesel()

SCIP_NODESEL* SCIPfindNodesel ( SCIP scip,
const char *  name 
)

returns the node selector of the given name, or NULL if not existing

Parameters
scipSCIP data structure
namename of node selector

Definition at line 8872 of file scip.c.

References NULL, SCIPsetFindNodesel(), and Scip::set.

Referenced by applyCompletesol(), applyOfins(), applyVbounds(), SCIP_DECL_HEUREXEC(), SCIPapplyRens(), SCIPapplyZeroobj(), SCIPfindObjNodesel(), SCIPincludeNodesel(), SCIPincludeNodeselBasic(), setSubscipParameters(), setupSCIPparamsStage3(), setupSubproblem(), setupSubScip(), and solveSubMIP().

◆ SCIPgetNodesels()

SCIP_NODESEL** SCIPgetNodesels ( SCIP scip)

returns the array of currently available node selectors

Parameters
scipSCIP data structure

Definition at line 8885 of file scip.c.

References SCIP_Set::nodesels, NULL, and Scip::set.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), and turnoffNodeSelector().

◆ SCIPgetNNodesels()

int SCIPgetNNodesels ( SCIP scip)

returns the number of currently available node selectors

Parameters
scipSCIP data structure

Definition at line 8896 of file scip.c.

References SCIP_Set::nnodesels, NULL, and Scip::set.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), and turnoffNodeSelector().

◆ SCIPsetNodeselStdPriority()

SCIP_RETCODE SCIPsetNodeselStdPriority ( SCIP scip,
SCIP_NODESEL nodesel,
int  priority 
)

sets the priority of a node selector in standard mode

Parameters
scipSCIP data structure
nodeselnode selector
prioritynew standard priority of the node selector

Definition at line 8907 of file scip.c.

References NULL, SCIP_OKAY, SCIPnodeselSetStdPriority(), and Scip::set.

Referenced by SCIP_DECL_NODESELEXITSOL(), SCIP_DECL_PARAMCHGD(), and turnoffNodeSelector().

◆ SCIPsetNodeselMemsavePriority()

SCIP_RETCODE SCIPsetNodeselMemsavePriority ( SCIP scip,
SCIP_NODESEL nodesel,
int  priority 
)

sets the priority of a node selector in memory saving mode

Parameters
scipSCIP data structure
nodeselnode selector
prioritynew memory saving priority of the node selector

Definition at line 8922 of file scip.c.

References NULL, SCIP_OKAY, SCIPnodeselSetMemsavePriority(), and Scip::set.

Referenced by SCIP_DECL_PARAMCHGD().

◆ SCIPgetNodesel()

SCIP_NODESEL* SCIPgetNodesel ( SCIP scip)

returns the currently used node selector

Parameters
scipSCIP data structure

Definition at line 8937 of file scip.c.

References NULL, SCIPsetGetNodesel(), Scip::set, and Scip::stat.