• DocumentCode
    796947
  • Title

    Many-Core vs. Many-Thread Machines: Stay Away From the Valley

  • Author

    Guz, Zvika ; Bolotin, Evgeny ; Keidar, Idit ; Kolodny, Avinoam ; Mendelson, Avi ; Weiser, Uri C.

  • Author_Institution
    EE Dept., Technion - Israel Inst. of Technol., Haifa
  • Volume
    8
  • Issue
    1
  • fYear
    2009
  • Firstpage
    25
  • Lastpage
    28
  • Abstract
    We study the tradeoffs between many-core machines like Intelpsilas Larrabee and many-thread machines like Nvidia and AMD GPGPUs. We define a unified model describing a superposition of the two architectures, and use it to identify operation zones for which each machine is more suitable. Moreover, we identify an intermediate zone in which both machines deliver inferior performance. We study the shape of this ldquoperformance valleyrdquo and provide insights on how it can be avoided.
  • Keywords
    coprocessors; multi-threading; multiprocessing systems; parallel architectures; AMD GPGPU; Intelpsilas Larrabee; Nvidia GPGPU; architecture superposition; many-core machines; many-thread machines; performance valley; Computer Systems; Multi-core/single-chip multiprocessors; Parallel Architectures; Processor Architectures;
  • fLanguage
    English
  • Journal_Title
    Computer Architecture Letters
  • Publisher
    ieee
  • ISSN
    1556-6056
  • Type

    jour

  • DOI
    10.1109/L-CA.2009.4
  • Filename
    4906237
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=796947