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Title: Combating the Reliability Challenge of GPU Register File at Low Supply Voltage

Abstract

Supply voltage reduction is an effective approach to significantly reduce GPU energy consumption. As the largest on-chip storage structure, the GPU register file becomes the reliability hotspot that prevents further supply voltage reduction below the safe limit (Vmin) due to process variation effects. This work addresses the reliability challenge of the GPU register file at low supply voltages, which is an essential first step for aggressive supply voltage reduction of the entire GPU chip. We propose GR-Guard, an architectural solution that leverages long register dead time to enable reliable operations from unreliable register file at low voltages.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1339050
Report Number(s):
PNNL-SA-119484
KJ0402000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: Proceedings of the 25th International Conference on Parallel Architectures and Compilation (PACT '16), September 11-15, 2016, Haifa, Israel, 3-15
Country of Publication:
United States
Language:
English
Subject:
Energy-efficient design; Architecture-Compiler co-design; low voltage GPU

Citation Formats

Tan, Jingweijia, Song, Shuaiwen, Yan, Kaige, Fu, Xin, Marquez, Andres, and Kerbyson, Darren J. Combating the Reliability Challenge of GPU Register File at Low Supply Voltage. United States: N. p., 2016. Web. doi:10.1145/2967938.2967951.
Tan, Jingweijia, Song, Shuaiwen, Yan, Kaige, Fu, Xin, Marquez, Andres, & Kerbyson, Darren J. Combating the Reliability Challenge of GPU Register File at Low Supply Voltage. United States. doi:10.1145/2967938.2967951.
Tan, Jingweijia, Song, Shuaiwen, Yan, Kaige, Fu, Xin, Marquez, Andres, and Kerbyson, Darren J. Sun . "Combating the Reliability Challenge of GPU Register File at Low Supply Voltage". United States. doi:10.1145/2967938.2967951.
@article{osti_1339050,
title = {Combating the Reliability Challenge of GPU Register File at Low Supply Voltage},
author = {Tan, Jingweijia and Song, Shuaiwen and Yan, Kaige and Fu, Xin and Marquez, Andres and Kerbyson, Darren J.},
abstractNote = {Supply voltage reduction is an effective approach to significantly reduce GPU energy consumption. As the largest on-chip storage structure, the GPU register file becomes the reliability hotspot that prevents further supply voltage reduction below the safe limit (Vmin) due to process variation effects. This work addresses the reliability challenge of the GPU register file at low supply voltages, which is an essential first step for aggressive supply voltage reduction of the entire GPU chip. We propose GR-Guard, an architectural solution that leverages long register dead time to enable reliable operations from unreliable register file at low voltages.},
doi = {10.1145/2967938.2967951},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Sep 11 00:00:00 EDT 2016},
month = {Sun Sep 11 00:00:00 EDT 2016}
}

Conference:
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