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Title: Constraint Solving on Hybrid Systems
Authors: Roque, Pedro
Pedro, Vasco
Abreu, Salvador
Editors: Seipel, Dietmar
Hanus, Michael
Abreu, Salvador
Keywords: Constraint solving
Issue Date: 2017
Publisher: Universidade de Würzburg
Citation: Pedro Roque, Vasco Pedro, and Salvador Abreu. Constraint solving on hybrid systems. In Dietmar Seipel, Michael Hanus, and Salvador Abreu, editors, 21st International Conference on Applications of Declarative Programming and Knowledge Management, INAP 2017, pages 3­18, Würzburg, Germany, September 2017. Technical Report 499, Institute of Computer Science, University of Würzburg.
Abstract: Applying parallelism to constraint solving seems a promising approach and it has been done with varying degrees of success. Early attempts to parallelize constraint propagation, which constitutes the core of traditional interleaved propagation and search constraint solving, were hindered by its essentially sequential nature. Recently, parallelization efforts have focussed mainly on the search part of constraint solving, as well as on local-search based solving. Lately, a particular source of parallelism has become pervasive, in the guise of GPUs, able to run thousands of parallel threads, and they have naturally drawn the attention of researchers in parallel constraint solving. We address challenges faced when using multiple devices for constraint solving, especially GPUs, such as deciding on the appropriate level of parallelism to employ, load balancing and inter-device communication, and present our current solutions.
Type: article
Appears in Collections:INF - Artigos em Livros de Actas/Proceedings

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