Title page for etd-0730116-171534


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URN etd-0730116-171534
Author Kuei-Chun Huang
Author's Email Address No Public.
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Department Computer Science and Engineering
Year 2015
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Design and Application of Special Function Unit in Dual-Precision
Date of Defense 2016-07-26
Page Count 96
Keyword
  • function evaluation
  • polynomial approximation
  • dual-precision
  • table lookup methods
  • uniform segmentation
  • special function unit
  • multipartite table methods
  • hierarchical multipartite table methods
  • Abstract Most previous researches on function evaluation focused on optimization of table content generation, area, and delay for a specific function and accuracy. Therefore, the final result achieves the best performance on area and delay only for this particular function and accuracy. Since the recent trend of technology products must satisfy more strict power consumption specification, it is necessary to design an individually optimized hardware unit for each accuracy in order to achieve best power performance. In this paper, we propose several dual-precision hardware architectures which could support operations in two different accuracy requirements, aiming to reduce the power at different accuracies. To compute different function values, parts of the hardware components such as arithmetic units of squarer, multipliers, or lookup tables can be shared to reduce hardware cost. Compared with the design with individually optimized function units of different accuracies, the proposed design can significantly reduce the power consumption in the low-precision operation mode with only small area overhead.
    Advisory Committee
  • Chung-Ho Chen - chair
  • Yun-Nan Chang - co-chair
  • Shiann-Rong Kuang - co-chair
  • Kun-Chih Chen - co-chair
  • Shen-Fu Hsiao - advisor
  • Files
  • etd-0730116-171534.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2016-08-30

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