Scippy

SCIP

Solving Constraint Integer Programs

Functions
prop_dualfix.h File Reference
Propagators

Detailed Description

fixing roundable variables to best bound

Author
Tobias Achterberg

This propagator fixes variables, that have no restrictions in direction of their objective coefficient, to the best possible value. If the objective coefficient of a variable is $0$ and it may be rounded both up and down, then this variable will be fixed to the closest feasible value to $0$.

Definition in file prop_dualfix.h.

#include "scip/scip.h"

Go to the source code of this file.

Functions

SCIP_RETCODE SCIPincludePropDualfix (SCIP *scip)
 

Function Documentation

SCIP_RETCODE SCIPincludePropDualfix ( SCIP *  scip)

creates the dual fixing propagator and includes it in SCIP

Parameters
scipSCIP data structure

Definition at line 309 of file prop_dualfix.c.

References NULL, PROP_DELAY, PROP_DESC, PROP_FREQ, PROP_NAME, PROP_PRESOL_MAXROUNDS, PROP_PRESOL_PRIORITY, PROP_PRESOLTIMING, PROP_PRIORITY, PROP_TIMING, SCIP_CALL, SCIP_OKAY, SCIPincludePropBasic(), SCIPsetPropCopy(), and SCIPsetPropPresol().

Referenced by SCIP_DECL_PROPCOPY(), SCIP_DECL_PROPEXEC(), and SCIPincludeDefaultPlugins().