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Supercomputer interconnect technologies, Opteron & Itanium

Discussion in 'Intel' started by Yousuf Khan, Aug 19, 2003.

  1. Yousuf Khan

    Yousuf Khan Guest

    This article mentions the various interconnect methods that people are
    trying on some of the fastest supercomputers on the planet:

    http://www.siliconstrategies.com/article/showArticle.jhtml?articleId=13100603

    or

    http://makeashorterlink.com/?Z18C422A5

    Opteron highlights:
    -The Cray Red Storm using 10368 Opterons will consume just 2MW
    compared to the NEC Earth Simulator which uses 8MW. Both are rated at
    40MFLOPs peak.
    -Earth Simulator occupies 3250 sq. m. over 3 floors in Tokyo. Red
    Storm will occupy only 3000 sq. ft. (1 sq. m. approx. = 9 sq. ft.)
    -Cray has created a proprietary link chip called Seastar, which uses a
    Hypertransport link to the Opterons, and uses a PowerPC controller.
    -The Cray system is *not* using the internal SMP capabilities of the
    Opteron though.

    Itanium highlights:
    -Pacific Northwest National Labs building an Itanium 2 supercomputer.
    -Quadrics is supplying its QsNet II to link the Itanium 2's giving an
    aggregrate bandwidth of 2.6GB/s.
    -They estimate that the latency of the QsNet links is lower than with
    Infiniband.
    -The actual latency bottleneck lies within the PCI-X bus.

    Next generation highlights:
    -one word: silicon nanowires
     
    Yousuf Khan, Aug 19, 2003
    #1
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  2. -The Cray Red Storm using 10368 Opterons will consume just 2MW
    Nope. Teraflops, not Megaflops. 1,000 times more! ;-)
     
    Felger Carbon, Aug 19, 2003
    #2
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  3. Yousuf Khan

    daytripper Guest

    Yup.

    Giga = 1000x Mega
    Tera = 1000x Giga
    Peta = 1000x Tera

    /daytripper (Kazillia = The Great Beyond ;-)
     
    daytripper, Aug 20, 2003
    #3
  4. Yousuf Khan

    Ian Stirling Guest

    To give some scale, 100THz is around the frequency of red light, 1EHz will
    leak straight out of a wire and through you (x-ray)
     
    Ian Stirling, Aug 26, 2003
    #4
  5. Yousuf Khan

    Alex Johnson Guest

    If only by virtue of being responsible for the weather with their 7,000
    degree chips. ;)
     
    Alex Johnson, Aug 29, 2003
    #5
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