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- W2007154281 abstract "The majority of auto-tuning research in HPC to date has focused on improving the performance of a single objective function. More recently, interest has grown in optimizing multiple objective functions simultaneously, for example balancing the trade-off between execution time and energy consumption. Evolutionary algorithms for multi-objective optimization attempt to quickly and accurately discover the set of Pareto-optimal solutions, or the Pareto frontier. However, a single solution (as opposed to a set) is desirable for online end-to-end auto-tuning. As an alternative, we use the hierarchical method based on prioritizing the objective functions and iteratively optimizing them in isolation to efficiently produce a single Pareto-optimal result. This approach has several advantages over evolutionary or even scalarization techniques for auto-tuning HPC problems. In this paper, we introduce the Automated Navigation Given Enumerated Leeways (ANGEL) auto-tuning method. We demonstrate the quality of ANGEL using a multi-objective benchmark test suite. We also demonstrate its utility by approximating various sections of a Pareto front from a real-world proxy application. ANGEL successfully navigates trade-offs that range from a 15% reduction in kernel run-time to a 3% savings in energy us." @default.
- W2007154281 created "2016-06-24" @default.
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- W2007154281 date "2015-06-16" @default.
- W2007154281 modified "2023-10-14" @default.
- W2007154281 title "ANGEL" @default.
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- W2007154281 doi "https://doi.org/10.1145/2768405.2768409" @default.
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