Using the CPLEX Callbacks

4 Callbacks in Matlab

Fourteen of the CPLEX callbacks are defined as Matlab m-files. A logical vector defines the callbacks to be used in CPLEX. This vector is named callback and is one of the input variables to the level 1 interface routine cplex.m.m (Section A.1). If the i^th entry of the logical vector callback is set, the corresponding callback is defined.

The callback calls the m-file specified in Table 4. The user can edit this m-file directly, or make a new copy. It is important that a new copy is placed in a directory that is searched before the cplex directory when Matlab goes through the Matlab path.

Index m-file Called at: Section

1 cpxcb_BARRIER.m D.1

2 cpxcb_DISJCUT.m D.2

3 cpxcb_DUAL.m D.3

4 cpxcb_DUALCROSS.m D.4

5 cpxcb_FLOWMIR.m D.5

6 cpxcb_FRACCUT.m D.6

7 cpxcb_MIP.m D.7

8 cpxcb_MIPPROBE.m D.8

9 cpxcb_PRESOLVE.m D.9

10 cpxcb_PRIM.m D.10

11 cpxcb_PRIMCROSS.m D.11

12 cpxcb_QPBARRIER.m D.12

13 cpxcb_QPSIMPLEX.m D.13

1 cpxcb_NET.m D.14

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