• DocumentCode
    2584937
  • Title

    Optimised global reduction on QsNetII

  • Author

    Roweth, Duncan ; Pittman, Ashley

  • Author_Institution
    Quadrics Ltd., Bristol, UK
  • fYear
    2005
  • fDate
    17-19 Aug. 2005
  • Firstpage
    23
  • Lastpage
    28
  • Abstract
    In this paper we describe how QsNetII supports reduction, a key collective for massively parallel applications. Results from jobs run on a 512-node quad CPU cluster show excellent scaling, with the average time to execute a 2048 process global sum being 22 microsecs.
  • Keywords
    microprocessor chips; parallel architectures; reduced instruction set computing; workstation clusters; 2048 processor; QsNet; cluster; optimisation; parallel application; Bandwidth; Broadcasting; Communication switching; Communication system control; Delay; Engines; Hardware; Protocols; SDRAM; Switches;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    High Performance Interconnects, 2005. Proceedings. 13th Symposium on
  • ISSN
    1550-4794
  • Print_ISBN
    0-7695-2449-4
  • Type

    conf

  • DOI
    10.1109/CONECT.2005.28
  • Filename
    1544573
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2584937