Research Article

A Hybrid Genetic Algorithm to Minimize Total Tardiness for Unrelated Parallel Machine Scheduling with Precedence Constraints

Table 2

Summary of iterations.

tt

1 1 1 0 3 0
2 2 2 0 5 1
3 3 2 5 7 3
4 4 1 7 9 5
5 6 2 7 11 8
6 5 1 9 14 13
7 7 1 14 17 19
8 9 2 11 16 23
9 8 1 17 22 32