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Implementing branch-and-bound in a ring of processors

  • Oliver Vornberger
Nonnumerical Algorithms (Session 2.2)
Part of the Lecture Notes in Computer Science book series (LNCS, volume 237)

Abstract

A set of personal computers is connected to form a ring structured parallel system: Each processor has access to its local memory and can exchange messages with its two ring neighbors.

A branch-and-bound procedure is implemented in Pascal to run in parallel on the ring and solve the Travelling-Salesman-Problem. Heuristics are developed to maintain a priority queue in a distributed heap. The computing times and speedups for 25 random graphs obtained with up to 16 ring members are discussed.

Keywords

Travel Salesman Problem Hamiltonian Cycle Global Memory Priority Queue Multiprocessor System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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8. References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • Oliver Vornberger
    • 1
  1. 1.Dept. of Mathematics & Computer ScienceUniversity of PaderbornWest — Germany

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