Lower Bounds for the Head-Body-Tail Problem on Parallel Machines: A Computational Study of the Multiprocessor Flow Shop

  • Authors:
  • Ann Vandevelde;Han Hoogeveen;Cor Hurkens;Jan Karel Lenstra

  • Affiliations:
  • Netherlands Controlling Authority for Milk and Milk Products, P.O. Box 250, 3830 AG Leusden, The Netherlands;Institute of Information and Computing Sciences, Utrecht University, P.O. Box 80089, 3508 TB Utrecht, The Netherlands;Department of Mathematics and Computer Science, Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;CWI, P.O. Box 94079, 1090 GB Amsterdam, The Netherlands

  • Venue:
  • INFORMS Journal on Computing
  • Year:
  • 2005

Quantified Score

Hi-index 0.00

Visualization

Abstract

The multiprocessor flow-shop is the generalization of the flow-shop in which each machine is replaced by a set of identical machines. As finding a minimum-length schedule is NP-hard, we set out to find good lower and upper bounds. The lower bounds are based on relaxation of the capacities of all machine sets except one. This results in a parallel-machine scheduling problem with release dates and delivery times, for which we derive a number of lower bounds. We pay special attention to the time complexity of algorithms for computing these bounds. To obtain the upper bounds a constructive algorithm in subsequent stages is used. We present an experimental comparison of the various lower and upper bounds for the multiprocessor flow-shop problem.