A Parallel Branch-and-Bound Approach to the Rectangular Guillotine Strip Cutting Problem

  • Authors:
  • Sławomir Bąk;Jacek Błażewicz;Grzegorz Pawlak;Maciej Płaza;Edmund K. Burke;Graham Kendall

  • Affiliations:
  • Institute of Computing Science, Poznań University of Technology, 60-965 Poznań, Poland;Institute of Computing Science, Poznań University of Technology, 60-965 Poznań, Poland;Institute of Computing Science, Poznań University of Technology, 60-965 Poznań, Poland;Institute of Computing Science, Poznań University of Technology, 60-965 Poznań, Poland;School of Computer Science, University of Nottingham, Nottingham NG8 1BB, United Kingdom;School of Computer Science, University of Nottingham, Nottingham NG8 1BB, United Kingdom

  • Venue:
  • INFORMS Journal on Computing
  • Year:
  • 2011

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Abstract

This paper presents a parallel branch-and-bound method to address the two-dimensional rectangular guillotine strip cutting problem. Our paper focuses on a parallel branching schema. We present a series of computational experiments to evaluate the strength of the approach. Optimal solutions have been found for some benchmark instances that had unknown solutions until now. For many other instances, we demonstrate that the proposed approach is time effective. The efficiency of the parallel version of the algorithm is compared and the speedup, when increasing the number of processors, is clearly demonstrated with an upper bound calculated by a specialised heuristic procedure.