constraint handler for cumulative constraints with optional activities
Definition in file cons_optcumulative.h.
|SCIP_RETCODE||SCIPincludeConshdlrOptcumulative (SCIP *scip)|
|SCIP_RETCODE||SCIPcreateConsOptcumulative (SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_VAR **binvars, int *durations, int *demands, int capacity, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)|
|SCIP_RETCODE||SCIPsetHminOptcumulative (SCIP *scip, SCIP_CONS *cons, int hmin)|
|int||SCIPgetHminOptcumulative (SCIP *scip, SCIP_CONS *cons)|
|SCIP_RETCODE||SCIPsetHmaxOptcumulative (SCIP *scip, SCIP_CONS *cons, int hmax)|
|int||SCIPgetHmaxOptcumulative (SCIP *scip, SCIP_CONS *cons)|
creates the handler for cumulative constraints with optional activities and includes it in SCIP
creates the handler for optcumulative constraints and includes it in SCIP
scip SCIP data structure
References consActiveOptcumulative, consDeactiveOptcumulative, consDelvarsOptcumulative, consDisableOptcumulative, consEnableOptcumulative, consEnforelaxOptcomulative, consExitOptcumulative, consExitpreOptcumulative, CONSHDLR_CHECKPRIORITY, CONSHDLR_DELAYPROP, CONSHDLR_DELAYSEPA, CONSHDLR_DESC, CONSHDLR_EAGERFREQ, CONSHDLR_ENFOPRIORITY, CONSHDLR_MAXPREROUNDS, CONSHDLR_NAME, CONSHDLR_NEEDSCONS, CONSHDLR_PRESOLTIMING, CONSHDLR_PROP_TIMING, CONSHDLR_PROPFREQ, CONSHDLR_SEPAFREQ, CONSHDLR_SEPAPRIORITY, conshdlrdataCreate(), consInitOptcumulative, consInitsolOptcumulative, consSepasolOptcumulative, DEFAULT_CONFLICTANALYSIS, DEFAULT_INTERVALRELAX, DEFAULT_ROWRELAX, EVENTHDLR_BINVARS_DESC, EVENTHDLR_BINVARS_NAME, EVENTHDLR_INTVARS_DESC, EVENTHDLR_INTVARS_NAME, FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPaddBoolParam(), SCIPcreateConsOptcumulative(), SCIPincludeConshdlr(), and SCIPincludeEventhdlrBasic().
|SCIP_RETCODE SCIPcreateConsOptcumulative||(||SCIP *||scip,|
|const char *||name,|
creates and captures a optcumulative constraint
scip SCIP data structure cons pointer to hold the created constraint name name of constraint nvars number of variables (jobs) vars array of integer variable which corresponds to starting times for a job binvars array of variable representing if the job has to be processed on this machine durations array containing corresponding durations demands array containing corresponding demands capacity available cumulative capacity initial should the LP relaxation of constraint be in the initial LP? Usually set to TRUE. Set to FALSE for 'lazy constraints'. separate should the constraint be separated during LP processing? Usually set to TRUE. enforce should the constraint be enforced during node processing? TRUE for model constraints, FALSE for additional, redundant constraints. check should the constraint be checked for feasibility? TRUE for model constraints, FALSE for additional, redundant constraints. propagate should the constraint be propagated during node processing? Usually set to TRUE. local is constraint only valid locally? Usually set to FALSE. Has to be set to TRUE, e.g., for branching constraints. modifiable is constraint modifiable (subject to column generation)? Usually set to FALSE. In column generation applications, set to TRUE if pricing adds coefficients to this constraint. dynamic is constraint subject to aging? Usually set to FALSE. Set to TRUE for own cuts which are seperated as constraints. removable should the relaxation be removed from the LP due to aging or cleanup? Usually set to FALSE. Set to TRUE for 'lazy constraints' and 'user cuts'. stickingatnode should the constraint always be kept at the node where it was added, even if it may be moved to a more global node? Usually set to FALSE. Set to TRUE to for constraints that represent node data.
References catchAllEvents(), consdataCreate(), CONSHDLR_NAME, FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIP_STAGE_PROBLEM, SCIPconshdlrGetData(), SCIPcreateCons(), SCIPerrorMessage, SCIPfindConshdlr(), SCIPgetStage(), and SCIPsetHminOptcumulative().
set the left bound of the time axis to be considered (including hmin)
scip SCIP data structure cons constraint data hmin left bound of time axis to be considered
returns the left bound of the time axis to be considered
scip SCIP data structure cons constraint
Referenced by SCIPsetHminOptcumulative().
set the right bound of the time axis to be considered (not including hmax)
scip SCIP data structure cons constraint data hmax right bound of time axis to be considered
returns the right bound of the time axis to be considered
scip SCIP data structure cons constraint
Referenced by SCIPsetHmaxOptcumulative().