Abstract
Modern superscalar CPUs contain large complex structures and diverse execution units, consuming wide dynamic power range. Building power delivery network for the worst-case power consumption is not energy efficient and often impossible to fit in small systems. Instantaneous power excursions can cause voltage droops. Power management algorithms are too slow to respond to instantaneous events. In this work, we propose a novel compiler-directed framework to address this problem. The framework is validated on a 4th Generation Intel® Core™ processor and with simulator on output trace. Up to 16% performance speedup is measured over baseline for the SPEC CPU2006 benchmarks.
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Haj-Yahya, J., Mendelson, A., Ben Asher, Y., Chattopadhyay, A. (2018). Compiler-Directed Energy Efficiency. In: Energy Efficient High Performance Processors. Computer Architecture and Design Methodologies. Springer, Singapore. https://doi.org/10.1007/978-981-10-8554-3_4
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DOI: https://doi.org/10.1007/978-981-10-8554-3_4
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