Heuristic methods for the identical parallel machine flowtime problem with set-up times

  • Authors:
  • Simon Dunstall;Andrew Wirth

  • Affiliations:
  • CSIRO Mathematical and Information Sciences, Private Bag 10, Clayton South MDC 3169, Australia;Department of Mechanical and Manufacturing Engineering, University of Melbourne, 3010, Australia

  • Venue:
  • Computers and Operations Research
  • Year:
  • 2005

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Abstract

We consider the scheduling of N jobs divided into G families for processing on M identical parallel machines. No set-up is necessary between jobs belonging to the same family. A set-up must be scheduled when switching from the processing of family i jobs to those of another family j, i ≠ j, the duration of this set-up being the sequence-independent set-up time sj for family j. We propose heuristics for this problem and computationally evaluate the performance of the heuristics relative to lower bounds and solutions obtained using an exact algorithm.