This folder contains the examples for production planning problems.

uls.sas: Standard model for uncapacitated lot-sizing.

uls_ext.sas: Extended formulation for uncapacitated lot-sizing.

uls_shortest.sas: Shortest path formulation for uncapacitated lot-sizing.

twostage.sas: A somewhat realistic two-stage multi-product multi-machine production planning problem with changeovers.

twostage_ext.sas: Same problem as twostage.sas but using an extended formulation for the second stage.

twostage_box.sas: Same problem as twostage.sas but with a different objective. Instead of minimizing total storage, minimize the maximum number of storage boxes.