SGI Origin 300; R14000 500mhz; 32cpu STREAM result

From: Kumaran Kalyanasundaram (kumaran@vonkarman.chicago.sgi.com)
Date: Tue Jan 22 2002 - 15:25:40 CST

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    SGI Origin 300
    R14000 500mhz
    2mb L2 cache

    ----------------------------------------------
     Double precision appears to have 16 digits of accuracy
     Assuming 8 bytes per DOUBLE PRECISION word
    ----------------------------------------------
     Array size = 32000000
     Offset = 0
     The total memory requirement is 732 MB
     You are running each test 4 times
     The *best* time for each test is used
     ----------------------------------------------------
     Your clock granularity/precision appears to be 1 microseconds
     The tests below will each take a time on the order
     of 46806 microseconds
        (= 46806 clock ticks)
     Increase the size of the arrays if this shows that
     you are not getting at least 20 clock ticks per test.
     ----------------------------------------------------
     WARNING -- The above is only a rough guideline.
     For best results, please be sure you know the
     precision of your system timer.
     ----------------------------------------------------
    Function Rate (MB/s) Min time Max time Mean time RMS time Median
    Copy: 10773.16 0.0475 0.0610 0.0541 0.0544 0.0540
    Scale: 10504.31 0.0487 0.0587 0.0539 0.0540 0.0533
    Add: 12322.08 0.0623 0.0778 0.0691 0.0693 0.0681
    Triad: 11834.06 0.0649 0.0781 0.0687 0.0689 0.0659
    -----------------------------------------------------------------------------
     All times are
        0.0610 0.0587 0.0778 0.0781
        0.0583 0.0578 0.0703 0.0662
        0.0498 0.0487 0.0659 0.0657
        0.0475 0.0501 0.0623 0.0649
    -----------------------------------------------------------------------------
     Sum of a is = 25312.50000057253
     Sum of b is = 5062.500000004043
     Sum of c is = 6749.999999831865

            Kumaran Kalyanasundaram, PhD Performance Engineering
        SGI 2060 E. Algonquin Rd, Schaumburg, IL 60504 kumaran@sgi.com
                   Ph. (847) 925 2913 Fax (847) 925 2930

                           
      



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