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Practical behavior of parallelization strategies for Datalog

  • Query Processing I
  • Conference paper
  • First Online:
Deductive and Object-Oriented Databases (DOOD 1995)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1013))

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Abstract

We present a behavior study on a very important class of known parallelization strategies for evaluating Datalog, the bottom-up rule instantiations partitioning paradigm. Its basic algorithm specialization is observed and some variations are tried out in order to obtain a comprehensive set of implementation results. We make careful observations on the impact of some of the factors that might influence the behavior of the algorithms. Particularly, important issues related to inter-site data transfers are analyzed and the practical results obtained show that this is clearly a fundamental factor to achieve acceptable performances. We also show that the usually considered analytical models may not explain the actual behavior of the algorithms.

This work was supported in part by CNPq

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Authors and Affiliations

  1. Departamento de Informática, Pontifícia Universidade Católica do Rio de Janeiro, Brasil

    Sérgio Lifschitz, Rubens N. Melo & Esther Pacitti

Authors
  1. Sérgio Lifschitz
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  2. Rubens N. Melo
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  3. Esther Pacitti
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Tok Wang Ling Alberto O. Mendelzon Laurent Vieille

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© 1995 Springer-Verlag Berlin Heidelberg

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Lifschitz, S., Melo, R.N., Pacitti, E. (1995). Practical behavior of parallelization strategies for Datalog. In: Ling, T.W., Mendelzon, A.O., Vieille, L. (eds) Deductive and Object-Oriented Databases. DOOD 1995. Lecture Notes in Computer Science, vol 1013. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-60608-4_37

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  • DOI: https://doi.org/10.1007/3-540-60608-4_37

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  • Print ISBN: 978-3-540-60608-6

  • Online ISBN: 978-3-540-48460-8

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