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- W4381894471 abstract "In the optimization of real-time systems, designers often face a challenging problem where the schedulability conditions are non-convex, non-continuous, or lack an analytical form to understand their properties. In this paper, we propose a general and scalable framework for optimizing real-time systems, named Numerical optimizer with Real-Time Highlight (NORTH). NORTH treats schedulability analysis as a blackbox which may only return true/false results on system schedulability. Built upon the active-set methods from the gradient-based numerical optimization literature, NORTH proposes new methods to manage active constraints to further improve the gradient-based optimizers. We apply the proposed approach to two example problems, one on energy optimization for systems with dynamic voltage and frequency scaling, and the other on the optimization of control performance. Experimental results demonstrate that the proposed framework runs 10 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> to 10 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>5</sup> times faster than state-of-the-art methods while maintaining similar solution quality." @default.
- W4381894471 created "2023-06-25" @default.
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- W4381894471 date "2023-05-01" @default.
- W4381894471 modified "2023-10-16" @default.
- W4381894471 title "A General and Scalable Method for Optimizing Real-Time Systems with Continuous Variables" @default.
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- W4381894471 doi "https://doi.org/10.1109/rtas58335.2023.00017" @default.
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