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The Significance of Memory Costs in Answer Set Solver Implementation

JOURNAL OF LOGIC AND COMPUTATION 2009年第4期19卷 615-641页

作者： Brain, Martin De Vos, Marina Univ Bath Dept Comp Sci Bath BA2 7AY Avon England

Implementation costs linked to processor memory subsystems (cache miss costs, stalls due to bandwidth limits, etc.) have been shown to be a factor in the performance of a variety of declarative programming tools. This article investigates their impact on answer set solvers and the factors that control them. Experiments independently altering the size and difficulty of input programs allow a qualitative assessment of whether input program or solver design is a greater factor and a quantitative assessment of how much of problem these issues create.A variety of processor performance metrics are recorded and used to provide a detailed picture of what limits solver performance and dispel a number of common *** demonstrate the degree to which these problems can be addressed, smodels-ie is presented. This is a version of the smodels solver with a number of implementation changes to improve cache utilisation, one major aspect of memory costs.

关键词： Answer set solvers answer set programming cache utilization optimization of memory bound programs declarative programming systems

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The Significance of Memory Costs in Answer Set Solver Implementation

The Significance of Memory Costs in Answer Set Solver Implem...

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4th International Workshop on Answer Set programming

作者： Brain, Martin De Vos, Marina Univ Bath Dept Comp Sci Bath BA2 7AY Avon England

关键词： Answer set solvers answer set programming cache utilization optimization of memory bound programs declarative programming systems

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