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Annotation of logic programs for independent AND-parallelism by partial evaluation*

Published online by Cambridge University Press:  05 September 2012

GERMAN VIDAL
GERMAN VIDAL*
Affiliation:
MiST, DSIC, Universitat Politècnica de València, Camino de Vera, S/N, 46022 Valencia, Spain (e-mail: gvidal@dsic.upv.es)
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Abstract

Traditional approaches to automatic AND-parallelization of logic programs rely on some static analysis to identify independent goals that can be safely and efficiently run in parallel in any possible execution. In this paper, we present a novel technique for generating annotations for independent AND-parallelism that is based on partial evaluation. Basically, we augment a simple partial evaluation procedure with (run-time) groundness and variable sharing information so that parallel conjunctions are added to the residual clauses when the conditions for independence are met. In contrast to previous approaches, our partial evaluator is able to transform the source program in order to expose more opportunities for parallelism. To the best of our knowledge, we present the first approach to a parallelizing partial evaluator.

Keywords

partial evaluationautomatic parallelizationprogram analysis
Type
Regular Papers
Information
Theory and Practice of Logic Programming , Volume 12 , Issue 4-5: 28th International Conference on Logic Programming , July 2012 , pp. 583 - 600
Copyright
Copyright © Cambridge University Press 2012

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