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Or-parallel Prolog on a distributed memory architecture

Lookup NU author(s): Professor Paul Watson

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Abstract

This paper discusses the design of Dorpp, an or-parallel Prolog system for distributed memory architectures. The problem of sharing the environment across a set of nodes that do not physically share memory is addressed in a novel manner by designing a Virtual Shared Memory (VSM) scheme to specifically meet the requirements of or-parallelism. The aim is to avoid the overheads of a general VSM scheme that would provide a stricter level of memory coherence than is actually required. The paper identifies the requirements for memory coherence in or-parallel Prolog, and describes how they can be met cheaply. Simulation results are presented and analyzed in order to highlight key aspects of the system's run-time behavior.


Publication metadata

Author(s): Silva F, Watson P

Publication type: Article

Publication status: Published

Journal: Journal of Logic Programming

Year: 2000

Volume: 43

Issue: 2

Pages: 173-186

ISSN (print): 0743-1066

ISSN (electronic): 1873-5940

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/S0743-1066(99)00064-3

DOI: 10.1016/S0743-1066(99)00064-3


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