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EnglishThis article presents a distributed version of the adjSolver algorithm for computing the answer sets of logic programs. adjSolver operates a classical branch-and-bound structure; its intrinsic parallelism is exploited to control, with a centralized architecture, the delegation of promising search subspaces to distributed handling agents. adjSolver has been implemented and tested on a Beowulf platform, using MPI message passing. The communication overhead was minimized by adopting a compact representation of the data exchanged among agents and by reusing previously-computed partial solutions.
| Titolo: | Experimental analysis of graph-based answer set computation over parallel and distributed architectures |
| Autori: | |
| Data di pubblicazione: | 2009 |
| Rivista: | |
| Abstract: | This article presents a distributed version of the adjSolver algorithm for computing the answer sets of logic programs. adjSolver operates a classical branch-and-bound structure; its intrinsic parallelism is exploited to control, with a centralized architecture, the delegation of promising search subspaces to distributed handling agents. adjSolver has been implemented and tested on a Beowulf platform, using MPI message passing. The communication overhead was minimized by adopting a compact representation of the data exchanged among agents and by reusing previously-computed partial solutions. |
| Handle: | http://hdl.handle.net/11570/1503 |
| Appare nelle tipologie: | 14.a.1 Articolo su rivista |
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http://hdl.handle.net/11570/1503
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