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	A Low-Cost Conflict-Free NoC for GPGPUs
	Zhao, Xia ; Ma, Sheng ; Liu, Yuxi ; Eeckhout, Lieven ; Wang, Zhiying
	2016
关键词	GPGPU NoC Low-Cost Conflict-Free
英文摘要	As integrated circuits are limited by hardware resources, reducing cost while maintaining the performance becomes especially important. In this article, we propose a conflict free NoC (cfNoC) for the GPGPU request network. The cfNoC eliminates (i) conflicts among different columns by deploying an exclusive subnet for each column, and (ii) conflicts inside the same column by using a token-based mechanism. The elimination of conflicts allows cfNoC to exploit different subnet channel widths to maintain the performance while reducing cost. Compared with a baseline mesh with 1 VC, our work reduces request network area by 22.6% and power by 23.7%. With 2 VCs, cfNoC achieves more than 37.6% power reduction compared to the baseline and the checkboard placement/routing (CP) design. All these benefits do not cause any performance loss.; EI; CPCI-S(ISTP); xia.zhao@ugent.be; masheng@nud.tedu.cn; yxi.liu@pku.edu.cn; lieven.eeckhout@ugent.be; zywang@nud.tedu.cn; 2016-August
语种	英语
出处	53rd ACM/EDAC/IEEE Design Automation Conference (DAC)
DOI标识	10.1145/2897937.2897963
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/449368]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhao, Xia,Ma, Sheng,Liu, Yuxi,et al. A Low-Cost Conflict-Free NoC for GPGPUs. 2016-01-01.

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