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An exact algorithm for scheduling identical coupled tasks

Author

Listed:
  • Dino Ahr
  • József Békési
  • Gábor Galambos
  • Marcus Oswald
  • Gerhard Reinelt

Abstract

The coupled task problem is to schedule n jobs on one machine where each job consists of two subtasks with required delay time between them. The objective is to minimize the makespan. This problem was analyzed in depth by Orman and Potts [3]. They investigated the complexity of different cases depending on the lengths a i and b i of the two subtasks and the delay time L i . [InlineMediaObject not available: see fulltext.][InlineMediaObject not available: see fulltext.]-hardness proofs or polynomial algorithms were given for all cases except for the one where a i =a, b i =b and L i =L. In this paper we present an exact algorithm for this problem with time complexity O(nr 2L ) where [InlineMediaObject not available: see fulltext.] holds. Therefore the algorithm is linear in the number of jobs for fixed L. Copyright Springer-Verlag 2004

Suggested Citation

  • Dino Ahr & József Békési & Gábor Galambos & Marcus Oswald & Gerhard Reinelt, 2004. "An exact algorithm for scheduling identical coupled tasks," Mathematical Methods of Operations Research, Springer;Gesellschaft für Operations Research (GOR);Nederlands Genootschap voor Besliskunde (NGB), vol. 59(2), pages 193-203, June.
    • Handle: RePEc:spr:mathme:v:59:y:2004:i:2:p:193-203
    DOI: 10.1007/s001860300328
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    Citations

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    Cited by:

    1. József Békési & Gábor Galambos & Michael Jung & Marcus Oswald & Gerhard Reinelt, 2014. "A branch-and-bound algorithm for the coupled task problem," Mathematical Methods of Operations Research, Springer;Gesellschaft für Operations Research (GOR);Nederlands Genootschap voor Besliskunde (NGB), vol. 80(1), pages 47-81, August.
    2. Khatami, Mostafa & Salehipour, Amir & Cheng, T.C.E., 2020. "Coupled task scheduling with exact delays: Literature review and models," European Journal of Operational Research, Elsevier, vol. 282(1), pages 19-39.
    3. Békési, József & Dósa, György & Galambos, Gábor, 2022. "A first Fit type algorithm for the coupled task scheduling problem with unit execution time and two exact delays," European Journal of Operational Research, Elsevier, vol. 297(3), pages 844-852.
    4. Bo Chen & Xiandong Zhang, 2021. "Scheduling coupled tasks with exact delays for minimum total job completion time," Journal of Scheduling, Springer, vol. 24(2), pages 209-221, April.
    5. Karim Amrouche & Mourad Boudhar & Mohamed Bendraouche & Farouk Yalaoui, 2017. "Chain-reentrant shop with an exact time lag: new results," International Journal of Production Research, Taylor & Francis Journals, vol. 55(1), pages 285-295, January.
    6. Mostafa Khatami & Amir Salehipour, 2021. "Coupled task scheduling with time-dependent processing times," Journal of Scheduling, Springer, vol. 24(2), pages 223-236, April.
    7. Nazim Sami & Karim Amrouche & Mourad Boudhar, 2024. "New efficient algorithms for the two-machine no-wait chain-reentrant shop problem," Journal of Combinatorial Optimization, Springer, vol. 47(5), pages 1-29, July.
    8. Nadjat Meziani & Ammar Oulamara & Mourad Boudhar, 2019. "Two-machine flowshop scheduling problem with coupled-operations," Annals of Operations Research, Springer, vol. 275(2), pages 511-530, April.

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