Heuristic constructive algorithms for open shop scheduling to minimize mean flow time

Heidemarie Bräsel, André Herms, Marc Mörig, Thomas Tautenhahn, Jan Tusch and Frank Werner

European Journal of Operational Research, 2008, vol. 189, issue 3, 856-870

Abstract: In this paper, we consider the problem of scheduling n jobs on m machines in an open shop environment so that the sum of completion times or mean flow time becomes minimal. For this strongly NP-hard problem, we develop and discuss different constructive heuristic algorithms. Extensive computational results are presented for problems with up to 50 jobs and 50 machines, respectively. The quality of the solutions is evaluated by a lower bound for the corresponding preemptive open shop problem and by an alternative estimate of mean flow time. We observe that the recommendation of an appropriate constructive algorithm strongly depends on the ratio n/m.

Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:189:y:2008:i:3:p:856-870

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