Scippy

SCIP

Solving Constraint Integer Programs

compr.h File Reference

Detailed Description

internal methods for tree compressions

Author
Jakob Witzig

Definition in file compr.h.

#include "scip/def.h"
#include "blockmemshell/memory.h"
#include "scip/type_retcode.h"
#include "scip/type_result.h"
#include "scip/type_set.h"
#include "scip/type_compr.h"
#include "scip/pub_compr.h"

Go to the source code of this file.

Functions

SCIP_RETCODE SCIPcomprCopyInclude (SCIP_COMPR *compr, SCIP_SET *set)
 
SCIP_RETCODE SCIPcomprCreate (SCIP_COMPR **compr, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, const char *name, const char *desc, int priority, int minnnodes, SCIP_DECL_COMPRCOPY((*comprcopy)), SCIP_DECL_COMPRFREE((*comprfree)), SCIP_DECL_COMPRINIT((*comprinit)), SCIP_DECL_COMPREXIT((*comprexit)), SCIP_DECL_COMPRINITSOL((*comprinitsol)), SCIP_DECL_COMPREXITSOL((*comprexitsol)), SCIP_DECL_COMPREXEC((*comprexec)), SCIP_COMPRDATA *comprdata)
 
SCIP_RETCODE SCIPcomprFree (SCIP_COMPR **compr, SCIP_SET *set)
 
SCIP_RETCODE SCIPcomprInit (SCIP_COMPR *compr, SCIP_SET *set)
 
SCIP_RETCODE SCIPcomprExit (SCIP_COMPR *compr, SCIP_SET *set)
 
SCIP_RETCODE SCIPcomprInitsol (SCIP_COMPR *compr, SCIP_SET *set)
 
SCIP_RETCODE SCIPcomprExitsol (SCIP_COMPR *compr, SCIP_SET *set)
 
SCIP_RETCODE SCIPcomprExec (SCIP_COMPR *compr, SCIP_SET *set, SCIP_REOPT *reopt, SCIP_RESULT *result)
 
void SCIPcomprSetPriority (SCIP_COMPR *compr, SCIP_SET *set, int priority)
 
void SCIPcomprSetCopy (SCIP_COMPR *compr, SCIP_DECL_COMPRCOPY((*comprcopy)))
 
void SCIPcomprSetFree (SCIP_COMPR *compr, SCIP_DECL_COMPRFREE((*comprfree)))
 
void SCIPcomprSetInit (SCIP_COMPR *compr, SCIP_DECL_COMPRINIT((*comprinit)))
 
void SCIPcomprSetExit (SCIP_COMPR *compr, SCIP_DECL_COMPREXIT((*comprexit)))
 
void SCIPcomprSetInitsol (SCIP_COMPR *compr, SCIP_DECL_COMPRINITSOL((*comprinitsol)))
 
void SCIPcomprSetExitsol (SCIP_COMPR *compr, SCIP_DECL_COMPREXITSOL((*comprexitsol)))
 
SCIP_Bool SCIPcomprShouldBeExecuted (SCIP_COMPR *compr, int depth, int nnodes)
 

Function Documentation

SCIP_RETCODE SCIPcomprCopyInclude ( SCIP_COMPR compr,
SCIP_SET set 
)

copies the given tree compression to a new scip

Parameters
comprtree compression
setSCIP_SET of SCIP to copy to

Definition at line 74 of file compr.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPcomprGetName(), and SCIPdebugMessage.

SCIP_RETCODE SCIPcomprCreate ( SCIP_COMPR **  compr,
SCIP_SET set,
SCIP_MESSAGEHDLR messagehdlr,
BMS_BLKMEM blkmem,
const char *  name,
const char *  desc,
int  priority,
int  minnnodes,
SCIP_DECL_COMPRCOPY((*comprcopy))  ,
SCIP_DECL_COMPRFREE((*comprfree))  ,
SCIP_DECL_COMPRINIT((*comprinit))  ,
SCIP_DECL_COMPREXIT((*comprexit))  ,
SCIP_DECL_COMPRINITSOL((*comprinitsol))  ,
SCIP_DECL_COMPREXITSOL((*comprexitsol))  ,
SCIP_DECL_COMPREXEC((*comprexec))  ,
SCIP_COMPRDATA comprdata 
)

creates a tree compression

Parameters
comprpointer to tree compression data structure
setglobal SCIP settings
messagehdlrmessage handler
blkmemblock memory for parameter settings
namename of tree compression
descdescription of tree compression
prioritypriority of the tree compression
minnnodesminimal number of nodes for calling compression
comprdatatree compression data

Definition at line 93 of file compr.c.

References BMSallocMemory, BMSduplicateMemoryArray, FALSE, NULL, paramname, SCIP_ALLOC, SCIP_CALL, SCIP_CLOCKTYPE_DEFAULT, SCIP_MAXSTRLEN, SCIP_OKAY, SCIPclockCreate(), SCIPsetAddIntParam(), SCIPsnprintf(), and TRUE.

Referenced by SCIPincludeCompr(), and SCIPincludeComprBasic().

SCIP_RETCODE SCIPcomprFree ( SCIP_COMPR **  compr,
SCIP_SET set 
)

calls destructor and frees memory of tree compression

Parameters
comprpointer to tree compression data structure
setglobal SCIP settings

Definition at line 157 of file compr.c.

References BMSfreeMemory, BMSfreeMemoryArray, NULL, SCIP_CALL, SCIP_OKAY, and SCIPclockFree().

SCIP_RETCODE SCIPcomprInit ( SCIP_COMPR compr,
SCIP_SET set 
)

initializes tree compression

Parameters
comprtree compression
setglobal SCIP settings

Definition at line 183 of file compr.c.

References SCIP_Compr::comprclock, SCIP_Compr::initialized, SCIP_Compr::name, SCIP_Compr::ncalls, SCIP_Compr::nfound, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPclockReset(), SCIPclockStart(), SCIPclockStop(), SCIPerrorMessage, SCIP_Compr::setuptime, and TRUE.

Referenced by SCIPsetInitPlugins().

SCIP_RETCODE SCIPcomprExit ( SCIP_COMPR compr,
SCIP_SET set 
)

calls exit method of tree compression

Parameters
comprtree compression
setglobal SCIP settings

Definition at line 222 of file compr.c.

References FALSE, SCIP_Compr::initialized, SCIP_Compr::name, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPclockStart(), SCIPclockStop(), SCIPerrorMessage, and SCIP_Compr::setuptime.

Referenced by SCIPsetExitPlugins().

SCIP_RETCODE SCIPcomprInitsol ( SCIP_COMPR compr,
SCIP_SET set 
)

informs tree compression that the branch and bound process is being started

Parameters
comprtree compression
setglobal SCIP settings
SCIP_RETCODE SCIPcomprExitsol ( SCIP_COMPR compr,
SCIP_SET set 
)

informs tree compression that the branch and bound process data is being freed

Parameters
comprtree compression
setglobal SCIP settings
SCIP_RETCODE SCIPcomprExec ( SCIP_COMPR compr,
SCIP_SET set,
SCIP_REOPT reopt,
SCIP_RESULT result 
)

calls execution method of tree compression

Parameters
comprtree compression
setglobal SCIP settings
reoptreoptimization data structure
resultpointer to store the result of the callback method

Definition at line 252 of file compr.c.

References SCIP_Compr::comprclock, SCIP_Compr::minnnodes, SCIP_Compr::name, SCIP_Compr::ncalls, SCIP_Compr::nfound, NULL, SCIP_CALL, SCIP_DIDNOTFIND, SCIP_DIDNOTRUN, SCIP_INVALIDRESULT, SCIP_OKAY, SCIP_SUCCESS, SCIPclockStart(), SCIPclockStop(), SCIPdebugMessage, SCIPerrorMessage, and SCIPreoptGetNLeaves().

Referenced by compressReoptTree().

void SCIPcomprSetPriority ( SCIP_COMPR compr,
SCIP_SET set,
int  priority 
)

sets priority of tree compression

Parameters
comprtree compression
setglobal SCIP settings
prioritynew priority of the tree compression

Definition at line 439 of file compr.c.

References FALSE, NULL, and SCIP_Compr::priority.

Referenced by SCIPsetComprPriority().

void SCIPcomprSetCopy ( SCIP_COMPR compr,
SCIP_DECL_COMPRCOPY((*comprcopy))   
)

sets copy callback of tree compression

Parameters
comprtree compression

Definition at line 329 of file compr.c.

References NULL.

Referenced by SCIPsetComprCopy().

void SCIPcomprSetFree ( SCIP_COMPR compr,
SCIP_DECL_COMPRFREE((*comprfree))   
)

sets destructor callback of tree compression

Parameters
comprtree compression

Definition at line 340 of file compr.c.

References NULL.

Referenced by SCIPsetComprFree().

void SCIPcomprSetInit ( SCIP_COMPR compr,
SCIP_DECL_COMPRINIT((*comprinit))   
)

sets initialization callback of tree compression

Parameters
comprtree compression

Definition at line 351 of file compr.c.

References NULL.

Referenced by SCIPsetComprInit().

void SCIPcomprSetExit ( SCIP_COMPR compr,
SCIP_DECL_COMPREXIT((*comprexit))   
)

sets deinitialization callback of tree compression

Parameters
comprtree compression

Definition at line 362 of file compr.c.

References NULL.

Referenced by SCIPsetComprExit().

void SCIPcomprSetInitsol ( SCIP_COMPR compr,
SCIP_DECL_COMPRINITSOL((*comprinitsol))   
)

sets solving process initialization callback of tree compression

Parameters
comprtree compression

Definition at line 373 of file compr.c.

References NULL.

Referenced by SCIPsetComprInitsol().

void SCIPcomprSetExitsol ( SCIP_COMPR compr,
SCIP_DECL_COMPREXITSOL((*comprexitsol))   
)

sets solving process deinitialization callback of tree compression

Parameters
comprtree compression

Definition at line 384 of file compr.c.

References NULL.

Referenced by SCIPsetComprExitsol().

SCIP_Bool SCIPcomprShouldBeExecuted ( SCIP_COMPR compr,
int  depth,
int  nnodes 
)

should the compression be executed at the given depth, frequency, timing, ...

should the compression be executed at the given depth, number of nodes

Parameters
comprtree compression
depthdepth of current node
nnodesnumber of open nodes

Definition at line 395 of file compr.c.

References SCIP_Compr::minnnodes, and NULL.