Originally posted by: VivekPeriaraj

Hello,

I had a question related to callbacks for Network Optimizer. I have a network flow model with one side constraint. I would like to choose an arc to enter the basis during the pivoting stage of the simplex method such that it is feasible with respect to this side constraint. I looked around and there seems to be no callbacks available for network optimizers. Is the above achievable or is there any other way to accomplish this?

Regards,

Vivek.

Originally posted by: RWunderling

CPLEX does not support taking control over the pivoting sequence from within a callback.  However, for the regular Simplex Algorithm CPLEX defines a set of function that allows you to conduct individual pivots using the C API.  Look for the CPXpivot*() functions.  For the network optimizer such API is not available.

Regards,

Roland

Originally posted by: VivekPeriaraj

Thank you Roland!