Research Article
The Synchronized and Integrated Two-Level Lot Sizing and Scheduling Problem: Evaluating the Generalized Mathematical Model
Table 5
AMPL/CPLEX results for the set of instances with
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| Comb. | | | Opt. | Gap(%) | CPU | Opt. | Gap(%) | CPU |
| | 10 | 0 | 0.22 | 10 | 0.51 | 1.90 | | 10 | 0 | 0.48 | 9 | 0.85 | 585.87 | | 10 | 0 | 0.60 | 8 | 0.61 | 1271.04 | | 10 | 0 | 0.66 | 10 | 0.32 | 15.49 | | 10 | 0 | 1.46 | 8 | 1.52 | 1414.51 | | 10 | 0 | 12.30 | 6 | 3.77 | 1519.31 | | 10 | 0 | 0.96 | 10 | 0.08 | 525.46 | | 10 | 0 | 4.37 | 6 | 0.79 | 2052.72 | | 10 | 0 | 7.83 | 5 | 1.38 | 1821.96 |
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