Improved bounds for hybrid flow shop scheduling with multiprocessor tasks
Author | Lahimer, Asma |
Author | Lopez, Pierre |
Author | Haouari, Mohamed |
Available date | 2023-01-23T08:18:14Z |
Publication Date | 2013 |
Publication Name | Computers and Industrial Engineering |
Resource | Scopus |
Abstract | In this paper, we investigate the problem of minimizing makespan in a multistage hybrid flow-shop scheduling with multiprocessor tasks. To generate high-quality approximate solutions to this challenging NP-hard problem, we propose a discrepancy search heuristic that is based on the new concept of adjacent discrepancies. Moreover, we describe a new lower bound based on the concept of dual feasible functions. The proposed lower and upper bounds are assessed through computational experiments conducted on 300 benchmark instances with up to 100 jobs and 8 stages. For these instances, we provide evidence that the proposed bounds consistently outperform the best existing ones. In particular, the proposed heuristic successfully improved the best known solution of 75 benchmark instances. 2013 Elsevier Ltd. All rights reserved. |
Language | en |
Subject | Discrepancy search Dual feasible functions Hybrid flow-shop scheduling Multiprocessor tasks |
Type | Article |
Pagination | 1106-1114 |
Issue Number | 4 |
Volume Number | 66 |
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