List scheduling for jobs with arbitrary release times and similar lengths

  • Authors:
  • Rongheng Li;Huei-Chuen Huang

  • Affiliations:
  • Department of Mathematics, Hunan Normal University, Changsha, China 410081;Department of Industrial and Systems Engineering, National University of Singapore, Singapore, Singapore 117576

  • Venue:
  • Journal of Scheduling
  • Year:
  • 2007

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Abstract

This paper considers the problem of on-line scheduling a list of independent jobs in which each job has an arbitrary release time and length in [1,r] with r驴1 on m parallel identical machines. For the list scheduling algorithm, we give an upper bound of the competitive ratio for any m驴1 and show that the upper bound is tight when m=1. When m=2, we present a tight bound for r驴4. For r