46#define HEUR_NAME "veclendiving"
47#define HEUR_DESC "LP diving heuristic that rounds variables with long column vectors"
48#define HEUR_DISPCHAR SCIP_HEURDISPCHAR_DIVING
49#define HEUR_PRIORITY -1003100
52#define HEUR_MAXDEPTH -1
53#define HEUR_TIMING SCIP_HEURTIMING_AFTERLPPLUNGE
54#define HEUR_USESSUBSCIP FALSE
55#define DIVESET_DIVETYPES SCIP_DIVETYPE_INTEGRALITY
56#define DIVESET_ISPUBLIC TRUE
63#define DEFAULT_MINRELDEPTH 0.0
64#define DEFAULT_MAXRELDEPTH 1.0
65#define DEFAULT_MAXLPITERQUOT 0.05
66#define DEFAULT_MAXLPITEROFS 1000
67#define DEFAULT_MAXDIVEUBQUOT 0.8
69#define DEFAULT_MAXDIVEAVGQUOT 0.0
71#define DEFAULT_MAXDIVEUBQUOTNOSOL 0.1
72#define DEFAULT_MAXDIVEAVGQUOTNOSOL 0.0
73#define DEFAULT_BACKTRACK TRUE
74#define DEFAULT_LPRESOLVEDOMCHGQUOT 0.15
75#define DEFAULT_LPSOLVEFREQ 0
76#define DEFAULT_ONLYLPBRANCHCANDS FALSE
78#define DEFAULT_RANDSEED 113
204 objdelta = ((*roundup) ? (1.0 - candsfrac) *
obj : -candsfrac *
obj);
219#define divesetAvailableVeclendiving NULL
int SCIPgetNIntVars(SCIP *scip)
int SCIPgetNBinVars(SCIP *scip)
SCIP_RETCODE SCIPincludeHeurVeclendiving(SCIP *scip)
int SCIPcolGetNNonz(SCIP_COL *col)
SCIP_RETCODE SCIPcreateDiveset(SCIP *scip, SCIP_DIVESET **diveset, SCIP_HEUR *heur, const char *name, SCIP_Real minreldepth, SCIP_Real maxreldepth, SCIP_Real maxlpiterquot, SCIP_Real maxdiveubquot, SCIP_Real maxdiveavgquot, SCIP_Real maxdiveubquotnosol, SCIP_Real maxdiveavgquotnosol, SCIP_Real lpresolvedomchgquot, int lpsolvefreq, int maxlpiterofs, unsigned int initialseed, SCIP_Bool backtrack, SCIP_Bool onlylpbranchcands, SCIP_Bool ispublic, SCIP_Bool specificsos1score, SCIP_DECL_DIVESETGETSCORE((*divesetgetscore)),)
SCIP_RETCODE SCIPsetHeurFree(SCIP *scip, SCIP_HEUR *heur,)
SCIP_HEURDATA * SCIPheurGetData(SCIP_HEUR *heur)
SCIP_RETCODE SCIPincludeHeurBasic(SCIP *scip, SCIP_HEUR **heur, const char *name, const char *desc, char dispchar, int priority, int freq, int freqofs, int maxdepth, SCIP_HEURTIMING timingmask, SCIP_Bool usessubscip, SCIP_DECL_HEUREXEC((*heurexec)), SCIP_HEURDATA *heurdata)
SCIP_RETCODE SCIPsetHeurCopy(SCIP *scip, SCIP_HEUR *heur,)
int SCIPheurGetNDivesets(SCIP_HEUR *heur)
SCIP_RETCODE SCIPsetHeurExit(SCIP *scip, SCIP_HEUR *heur,)
SCIP_RETCODE SCIPsetHeurInit(SCIP *scip, SCIP_HEUR *heur,)
const char * SCIPheurGetName(SCIP_HEUR *heur)
SCIP_DIVESET ** SCIPheurGetDivesets(SCIP_HEUR *heur)
#define SCIPfreeBlockMemory(scip, ptr)
#define SCIPallocBlockMemory(scip, ptr)
SCIP_Real SCIPsumepsilon(SCIP *scip)
SCIP_COL * SCIPvarGetCol(SCIP_VAR *var)
SCIP_VARSTATUS SCIPvarGetStatus(SCIP_VAR *var)
SCIP_Real SCIPvarGetObj(SCIP_VAR *var)
SCIP_VARTYPE SCIPvarGetType(SCIP_VAR *var)
SCIPperformGenericDivingAlgorithm(scip, diveset, heurdata->sol, heur, result, nodeinfeasible, lpiterlimit, -1, -1.0, SCIP_DIVECONTEXT_ADAPTIVE))
assert(minobj< SCIPgetCutoffbound(scip))
#define DEFAULT_ONLYLPBRANCHCANDS
#define DEFAULT_MAXDIVEUBQUOT
#define DEFAULT_LPRESOLVEDOMCHGQUOT
SCIPheurSetData(heur, NULL)
#define DEFAULT_MAXLPITERQUOT
#define DEFAULT_MAXDIVEAVGQUOT
#define DEFAULT_LPSOLVEFREQ
#define DEFAULT_BACKTRACK
#define DEFAULT_MAXDIVEUBQUOTNOSOL
#define DEFAULT_MAXRELDEPTH
#define DEFAULT_MAXLPITEROFS
SCIPfreeSol(scip, &heurdata->sol))
#define DEFAULT_MAXDIVEAVGQUOTNOSOL
#define DIVESET_DIVETYPES
#define DEFAULT_MINRELDEPTH
#define divesetAvailableVeclendiving
static SCIP_DIVESET * diveset
SCIPcreateSol(scip, &heurdata->sol, heur))
LP diving heuristic that rounds variables with long column vectors.
methods commonly used by primal heuristics
public methods for primal heuristics
public methods for LP management
public methods for message output
public methods for problem variables
public methods for primal heuristic plugins and divesets
public methods for memory management
public methods for numerical tolerances
public methods for global and local (sub)problems
public methods for solutions
#define SCIP_DECL_HEURCOPY(x)
struct SCIP_HeurData SCIP_HEURDATA
#define SCIP_DECL_HEURINIT(x)
#define SCIP_DECL_HEUREXIT(x)
#define SCIP_DECL_HEURFREE(x)
#define SCIP_DECL_DIVESETGETSCORE(x)
#define SCIP_DECL_HEUREXEC(x)
@ SCIP_DIVECONTEXT_SINGLE
enum SCIP_Retcode SCIP_RETCODE