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Power Modeling Approach for GPU Source Program

  • Li, Junke (College of Computer Science, Sichuan University, China/School of Computer and Information, Qiannan Normal University for Nationalities) ;
  • Guo, Bing (College of Computer Science, Sichuan University) ;
  • Shen, Yan (School of Control Engineering, Chengdu University of Information Technology) ;
  • Li, Deguang (College of Computer Science, Sichuan University) ;
  • Huang, Yanhui (College of Computer Science, Sichuan University)
  • Received : 2017.03.05
  • Accepted : 2017.08.23
  • Published : 2018.01.01

Abstract

Rapid development of information technology makes our environment become smarter and massive high performance computers are providing powerful computing for that. Graphics Processing Unit (GPU) as a typical high performance component is being widely used for both graphics and general-purpose applications. Although it can greatly improve computing power, it also delivers significant power consumption and need sufficient power supplies. To make high performance computing more sustainable, the important step is to measure it. Current power technologies for GPU have some drawbacks, such as they are not applicable for power estimation at the early stage. In this article, we present a novel power technology to correlate power consumption and the characteristics at the programmer perspective, and then to estimate power consumption of source program without prerunning. We conduct experiments on Nvidia's GT740 platform; the results show that our power model is more accurately than regression model and has an average error of 2.34% and the maximum error of 9.65%.

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Fig. 1. Different Approaches of energy measurement[6]

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Fig. 2. Structure of BP neural network

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Fig. 3. Comparison between estimated and measured power

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Fig. 4. Relationship between Rreg and the power

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Fig. 5. Relationship between Os and the power

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Fig. 6. Relationship between Rsmem and the power

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Fig. 7. Relationship between Rgmem and the power

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Fig. 8. Relationship between CTMR and the power

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Fig. 9. Power comparisons under different divergence andinput size

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Fig. 10. Different input affect characteristics

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Fig. 11. Power error under different approaches

Table 1. Resource specified by programmer

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Table 2. Hardware resource limitation

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Acknowledgement

Supported by : National Natural Science Foundation of China

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