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	Run-time technique for simultaneous aging and power optimization in gpgpus
	Chen, Xiaoming ; Wang, Yu ; Liang, Yun ; Xie, Yuan ; Yang, Huazhong
	2014
英文摘要	High-performance general-purpose graphics processing units (GPGPUs) may suffer from serious power and negative bias temperature instability (NBTI) problems. In this paper, we propose a framework for run-time aging and power optimization. Our technique is based on the observation that many GPGPU applications achieve optimal performance with only a portion of cores due to either bandwidth saturation or shared resource contention. During run-time, given the dynamically tracked NBTI-induced threshold voltage shift and the problem size of GPGPU applications, our algorithm returns the optimal number of cores using detailed performance modeling. The unused cores are power-gated for power saving and NBTI recovery. Experiments show that our proposed technique achieves on average 34% reduction in NBTI-induced threshold voltage shift and 19% power reduction, while the average performance degradation is less than 1%. Copyright 2014 ACM.; EI; 0
语种	英语
DOI标识	10.1145/2593069.2593208
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/329419]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Chen, Xiaoming,Wang, Yu,Liang, Yun,et al. Run-time technique for simultaneous aging and power optimization in gpgpus. 2014-01-01.

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