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Scheduling three-operation jobs in a two-machine flow shop to minimize makespan: Models and algorithms for planning and scheduling problems

Scheduling three-operation jobs in a two-machine flow shop to minimize makespan: Models and algorithms for planning and scheduling problems
Scheduling three-operation jobs in a two-machine flow shop to minimize makespan: Models and algorithms for planning and scheduling problems
This paper considers a variant of the classical problem of minimizing makespan in a two-machine flow shop. In this variant, each job has three operations, where the first operation must be performed on the first machine, the second operation can be performed on either machine but cannot be preempted, and the third operation must be performed on the second machine.
The NP-hard nature of the problem motivates the design and analysis of approximation algorithms. It is shown that a schedule in which the operations are sequenced arbitrarily, but without inserted machine idle time, has a worst-case performance ratio of 2. Also, an algorithm that constructs four schedules and selects the best is shown to have a worst-case performance ratio of 3/2. A polynomial time approximation scheme (PTAS) is also presented.
scheduling, flow shop, makespan, approximation algorithm, polynomial time approximation scheme
171-185
Gupta, Jatinder N.D.
89e88c9f-16b7-4dae-93f1-c4ba7fadb8c3
Koulamas, Christos P.
1f4cee58-acde-45cd-8361-9465b7a29dfe
Kyparisis, George J.
3a7aed0b-6c0f-4de5-ab77-c1358c5f55a2
Potts, Chris N.
58c36fe5-3bcb-4320-a018-509844d4ccff
Strusevich, Vitality A.
9a382cc0-25a4-4581-b475-9cfac0c62f02
Gupta, Jatinder N.D.
89e88c9f-16b7-4dae-93f1-c4ba7fadb8c3
Koulamas, Christos P.
1f4cee58-acde-45cd-8361-9465b7a29dfe
Kyparisis, George J.
3a7aed0b-6c0f-4de5-ab77-c1358c5f55a2
Potts, Chris N.
58c36fe5-3bcb-4320-a018-509844d4ccff
Strusevich, Vitality A.
9a382cc0-25a4-4581-b475-9cfac0c62f02

Gupta, Jatinder N.D., Koulamas, Christos P., Kyparisis, George J., Potts, Chris N. and Strusevich, Vitality A. (2004) Scheduling three-operation jobs in a two-machine flow shop to minimize makespan: Models and algorithms for planning and scheduling problems. Annals of Operations Research, 129 (1-4), 171-185. (doi:10.1023/B:ANOR.0000030687.72169.c7).

Record type: Article

Abstract

This paper considers a variant of the classical problem of minimizing makespan in a two-machine flow shop. In this variant, each job has three operations, where the first operation must be performed on the first machine, the second operation can be performed on either machine but cannot be preempted, and the third operation must be performed on the second machine.
The NP-hard nature of the problem motivates the design and analysis of approximation algorithms. It is shown that a schedule in which the operations are sequenced arbitrarily, but without inserted machine idle time, has a worst-case performance ratio of 2. Also, an algorithm that constructs four schedules and selects the best is shown to have a worst-case performance ratio of 3/2. A polynomial time approximation scheme (PTAS) is also presented.

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More information

Published date: 2004
Keywords: scheduling, flow shop, makespan, approximation algorithm, polynomial time approximation scheme
Organisations: Operational Research

Identifiers

Local EPrints ID: 29626
URI: http://eprints.soton.ac.uk/id/eprint/29626
PURE UUID: a3714e1f-54d6-43cf-82e4-293eb93184f9

Catalogue record

Date deposited: 12 May 2006
Last modified: 15 Mar 2024 07:33

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Contributors

Author: Jatinder N.D. Gupta
Author: Christos P. Koulamas
Author: George J. Kyparisis
Author: Chris N. Potts
Author: Vitality A. Strusevich

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