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Dynamic revision of choice points during garbage collection in prolog [II/III]

  • Logic Programming Languages II
  • Conference paper
  • First Online:
Memory Management (IWMM 1992)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 637))

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Abstract

We describe a technique allowing efficient reconsideration of all the current choice points whenever the garbage collector is activated. It turned out that this extra work usually saves time since the garbage collector will have less structures to consider. Moreover this extra work will be deducted from future work, if the search tree is not pruned. This technique also allows recovery of space in the local stack of the wam, thus making garbage collection of this stack worthwhile.

There is no additional cost in space if a trail with (address,value) pairs is used. The Dynamic revision algorithm can however be implemented with a standard trail if space the same size as the trail contents is made available at garbage collection time.

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Authors and Affiliations

  1. Groupe Intelligence Artificielle, Université Aix-Marseille II, Luminy case 919, 13288, Marseille Cedex 9, France

    Jean François Pique

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  1. Jean François Pique
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Yves Bekkers Jacques Cohen

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© 1992 Springer-Verlag Berlin Heidelberg

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Pique, J.F. (1992). Dynamic revision of choice points during garbage collection in prolog [II/III]. In: Bekkers, Y., Cohen, J. (eds) Memory Management. IWMM 1992. Lecture Notes in Computer Science, vol 637. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0017199

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  • DOI: https://doi.org/10.1007/BFb0017199

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-55940-5

  • Online ISBN: 978-3-540-47315-2

  • eBook Packages: Springer Book Archive

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