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  4. A predictive shutdown technique for GPU shader processors
 
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A predictive shutdown technique for GPU shader processors

Journal
IEEE Computer Architecture Letters
Journal Volume
8
Journal Issue
1
Pages
9-12
Date Issued
2009
Author(s)
CHIA-LIN YANG  
Wang, Po-Han
Chen, Yen-Ming
Yang, Chia-Lin
Cheng, Yu-Jung
CHIA-LIN YANG  
DOI
10.1109/L-CA.2009.1
URI
http://www.scopus.com/inward/record.url?eid=2-s2.0-67650602178&partnerID=MN8TOARS
http://scholars.lib.ntu.edu.tw/handle/123456789/349159
Abstract
As technology continues to shrink, reducing leakage is critical to achieve energy efficiency. Previous works on low-power GPU (Graphics Processing Unit) focus on techniques for dynamic power reduction, such as DVFS (Dynamic Voltage/Frequency Scaling) and clock gating. In this paper, we explore the potential of adopting architecturelevel power gating techniques for leakage reduction on GPU. In particular, we focus on the most power-hungry components, shader processors. We observe that, due to different scene complexity, the required shader resources to satisfy the target frame rate actually vary across frames. Therefore, we propose the Predictive Shader Shutdown technique to exploit workload variation across frames for leakage reduction on shader processors. The experimental results show that Predictive Shader Shutdown achieves up to 46% leakage reduction on shader processors with negligible performance degradation. © 2006 IEEE.
Subjects
GPU; Leakage; Power gating
SDGs

[SDGs]SDG7

Other Subjects
Clock gating; Dynamic power reduction; Dynamic voltage/frequency scaling; Frame rate; GPU; Graphics Processing Unit; Leakage; Leakage reduction; Low Power; Performance degradation; Power gating; Scene complexity; Shut-down techniques; Workload variation; Energy efficiency
Type
journal article

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