Parallel and distributed local search in COMET

The availability of commodity multiprocessors and high-speed networks of workstations offer significant opportunities for addressing the increasing computational requirements of optimization applications. To leverage these potential benefits, it is important, however, to make parallel and distribute...

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Vydáno v:Computers & operations research Ročník 36; číslo 8; s. 2357 - 2375
Hlavní autoři: Michel, Laurent, See, Andrew, Van Hentenryck, Pascal
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Pergamon Press Inc 01.08.2009
Témata:
Distributed processing
High speed
Optimization
Optimization algorithms
Parallel processing
Studies
ISSN:0305-0548, 0305-0548
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Shrnutí:The availability of commodity multiprocessors and high-speed networks of workstations offer significant opportunities for addressing the increasing computational requirements of optimization applications. To leverage these potential benefits, it is important, however, to make parallel and distributed processing easily accessible to a wide audience of optimization programmers. This paper addresses this challenge by proposing parallel and distributed programming abstractions that keep the distance from sequential local search algorithms as small as possible. The abstractions, including parallel loops, interruptions, thread pools, and shared objects, are compositional and cleanly separate the optimization program and the parallel instructions. They have been evaluated experimentally on a variety of applications, including warehouse location and coloring, for which they provide significant speedups. [PUBLICATION ABSTRACT]
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ISSN:0305-0548
0305-0548
DOI:10.1016/j.cor.2008.08.014