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DOE OSTI · 1353371

Addressing Thermal and Performance Variability Issues in Dynamic Processors

Yoshii, Kazutomo·Llopis, Pablo·Zhang, Kaicheng·Luo, Yingyi·Ogrenci-Memik, Seda·Memik, Gokhan·Sankaran, Rajesh·Beckman, Pete
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Abstract

As CMOS scaling nears its end, parameter variations (process, temperature and voltage) are becoming a major concern. To overcome parameter variations and provide stability, modern processors are becoming dynamic, opportunistically adjusting voltage and frequency based on thermal and energy constraints, which negatively impacts traditional bulk-synchronous parallelism-minded hardware and software designs. As node-level architecture is growing in complexity, implementing variation control mechanisms only with hardware can be a challenging task. In this paper we investigate a software strategy to manage hardwareinduced variations, leveraging low-level monitoring/controlling mechanisms.

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97 MATHEMATICS AND COMPUTING

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Yoshii, Kazutomo, Llopis, Pablo, Zhang, Kaicheng, Luo, Yingyi, Ogrenci-Memik, Seda, Memik, Gokhan, Sankaran, Rajesh, Beckman, Pete. 2017-03-01. Addressing Thermal and Performance Variability Issues in Dynamic Processors. https://doi.org/10.2172/1353371

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