Research Article

The Synchronized and Integrated Two-Level Lot Sizing and Scheduling Problem: Evaluating the Generalized Mathematical Model

Table 7

AMPL/CPLEX results for the set of instances with .

Comb.
Opt.Gap(%)CPUOpt.Gap(%)CPU

100.7210.6490.13535.17
43.382177.7335.002814.48
51.842249.2424.553159.17
90.20461.3570.151808.17
34.723076.4313.883276.78
23.313208.9906.523600.45
70.331150.2340.572922.49
14.703257.7304.973600.33
25.552963.0305.063600.32