1cpu Compaq_AlphaServer_GS320 and Compaq_AlphaServer_GS160

From: John Henning (henning@perfom.zko.dec.com)
Date: Fri Jun 16 2000 - 17:05:38 CDT

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    henning@perfom.zko.dec.com (John Henning) on 06/16/2000 04:52:13 PM

    To: John D Mccalpin/Austin/IBM@IBMUS
    Subject: 1cpu Compaq_AlphaServer_GS320 and Compaq_AlphaServer_GS160

    Hi John,

    This is a single CPU on an AlphaServer GS160 or GS320.
    This uses the same source code as
    but it was compiled without "-omp", so is single threaded.
    This run was from the same day as the 32-CPU run.

       - John

    wfdemo1> f90 -fast -O5 -unroll 8 -arch ev6 mcc_omp_nodebug.f -o no_omp
    wfdemo1> ./no_omp
     n, offset, ntimes
     Double precision appears to have 16 digits of accuracy
     Assuming 8 bytes per DOUBLE PRECISION word
     Array size = 120000549
     Offset = 0
     The total memory requirement is 2746.59 MB
     You are running each test 10 times
     The *best* time for each test is used
     Your clock granularity/precision appears to be 1000 microseconds
     The tests below will each take a time on the order
     of 1430000 microseconds
        (= 1430 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) RMS time Min time Max time
    Copy: 970.6819 2.6522 1.9780 3.5260
    Scale: 958.5665 2.6117 2.0030 2.9400
    Add: 1003.4889 3.7992 2.8700 4.9440
    Triad: 1002.4411 3.7819 2.8730 4.4580
     Sum of a is = 1.383967266434037E+020
     Sum of b is = 2.767934540034517E+019
     Sum of c is = 3.690579379856141E+019

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