Design and performance measurements of an execution model for the parallel processing of Prolog programs

This paper presents a hierarchical parallel execution model for Prolog programs, the execution model is based on Or-parallelism/And-parallelism as coarse-grain parallelism, and parallel unification as fine-grain parallelism. At the coarse-grain parallelism level we propose an extended And-Or tree. C...

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Published in:IEEE First ICA³PP, IEEE First International Conference on Algorithms and Architectures for Parallel Processing, Brisbane, Australia, 19-21 April, 1995 Vol. 2; pp. 650 - 658 vol.2
Main Authors: Dong Wang, Kobayashi, H., Nakamura, T.
Format: Conference Proceeding
Language:English
Japanese
Published: IEEE 19.11.2002
Subjects:
Application software
Artificial intelligence
Design engineering
Expert systems
Logic programming
Machine intelligence
Parallel processing
Programming profession
Spatial databases
Systems engineering and theory
ISBN:9780780320185, 0780320182
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Abstract This paper presents a hierarchical parallel execution model for Prolog programs, the execution model is based on Or-parallelism/And-parallelism as coarse-grain parallelism, and parallel unification as fine-grain parallelism. At the coarse-grain parallelism level we propose an extended And-Or tree. Consequently, the tree can exploit high degree of parallelism from Prolog programs. Exploiting parallelism of Prolog programs is based an the binding-arrays method for Or-parallelism and the restricted And-parallelism (RAP) method for And-parallelism. At the fine-grain parallelism level, parallel unification is performed. In general, the parallel unification consists of parallel argument matching and consistency checking. However, since the RAP method does not need consistency checking, consistency checking at the fine-grain parallelism level is also removed. The measurements of the parallelism degree of this model are also to be presented in this paper.< >
AbstractList This paper presents a hierarchical parallel execution model for Prolog programs, the execution model is based on Or-parallelism/And-parallelism as coarse-grain parallelism, and parallel unification as fine-grain parallelism. At the coarse-grain parallelism level we propose an extended And-Or tree. Consequently, the tree can exploit high degree of parallelism from Prolog programs. Exploiting parallelism of Prolog programs is based an the binding-arrays method for Or-parallelism and the restricted And-parallelism (RAP) method for And-parallelism. At the fine-grain parallelism level, parallel unification is performed. In general, the parallel unification consists of parallel argument matching and consistency checking. However, since the RAP method does not need consistency checking, consistency checking at the fine-grain parallelism level is also removed. The measurements of the parallelism degree of this model are also to be presented in this paper.< >
Author Kobayashi, H.
Dong Wang
Nakamura, T.
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Snippet This paper presents a hierarchical parallel execution model for Prolog programs, the execution model is based on Or-parallelism/And-parallelism as coarse-grain...
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SubjectTerms Application software
Artificial intelligence
Design engineering
Expert systems
Logic programming
Machine intelligence
Parallel processing
Programming profession
Spatial databases
Systems engineering and theory
Title Design and performance measurements of an execution model for the parallel processing of Prolog programs
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