Stream Processors: Progammability and Efficiency

  • Authors:
  • William J. Dally;Ujval J. Kapasi;Brucek Khailany;Jung Ho Ahn;Abhishek Das

  • Affiliations:
  • Stanford University;Stanford University;Stanford University;Stanford University;Stanford University

  • Venue:
  • Queue - DSPs
  • Year:
  • 2004

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Abstract

Many signal processing applications require both efficiency and programmability. Baseband signal processing in 3G cellular base stations, for example, requires hundreds of GOPS (giga, or billions, of operations per second) with a power budget of a few watts, an efficiency of about 100 GOPS/W (GOPS per watt), or 10 pJ/op (picoJoules per operation). At the same time programmability is needed to follow evolving standards, to support multiple air interfaces, and to dynamically provision processing resources over different air interfaces. Digital television, surveillance video processing, automated optical inspection, and mobile cameras, camcorders, and 3G cellular handsets have similar needs.