Large Neighborhood Local Search Optimization on Graphics Processing Units - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Année : 2010

Large Neighborhood Local Search Optimization on Graphics Processing Units

Résumé

Local search (LS) algorithms are among the most powerful techniques for solving computationally hard problems in combinatorial optimization. These algorithms could be viewed as ``walks through neighborhoods'' where the walks are performed by iterative procedures that allow to move from a solution to another one in the solution space. In these heuristics, designing operators to explore large promising regions of the search space may improve the quality of the obtained solutions at the expense of a highly computationally process. Therefore, the use of graphics processing units (GPUs) provides an efficient complementary way to speed up the search. However, designing applications on GPU is still complex and error-prone. We provide a methodology to design and implement large neighborhood LS algorithms on GPU. Finding efficient mappings of the neighborhood structures onto the GPU threads organization is a challenging issue dealt with in this paper. The work has been experimented for binary problems by deploying multiple neighborhood structures. The obtained results are convincing both in terms of efficiency, quality and robustness of the provided solutions at run time.

Domaines

Autre [cs.OH]
Fichier principal
Vignette du fichier
journalGPU.pdf (397.44 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

inria-00520465 , version 1 (23-09-2010)

Identifiants

  • HAL Id : inria-00520465 , version 1

Citer

Thé Van Luong, Nouredine Melab, El-Ghazali Talbi. Large Neighborhood Local Search Optimization on Graphics Processing Units. Workshop on Large-Scale Parallel Processing (LSPP) in Conjunction with the International Parallel & Distributed Processing Symposium (IPDPS), 2010, Atlanta, United States. ⟨inria-00520465⟩
148 Consultations
438 Téléchargements

Partager

Gmail Facebook X LinkedIn More