stream results

From: phyllis gardner (gardner_phyllis@hotmail.com)
Date: Fri Jul 19 2002 - 20:15:58 CDT

  • Next message: Pekka Järveläinen: "stream result"

    Hi John,

    I've run your stream test and wanted to post my results. I don't see a way
    to post them, so I'm emailing them to you.

    If there is a way and i've missed it, please let me know.

    Here are the specs of the box I ran it on, and the results.

    Thanks much,
    Phyllis

    IBM Intellistation M Pro
    2.0 GHz Dual Xeon, 512 KB cache
    82860 Northbridge chip
    1 GB RDRAM – 4*256 MB PC 800 ECC

    -------------------------------------------------------------
    This system uses 8 bytes per DOUBLE PRECISION word.
    -------------------------------------------------------------
    Array size = 999936
    Total memory required = 24.9 MB.
    Each test is run 10 times, but only
    the *best* time for each is used.
    -------------------------------------------------------------
    Your clock granularity/precision appears to be 1 microseconds.
    Each test below will take on the order of 8890 microseconds.
       (= 8890 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: 1341.2261 0.0177 0.0119 0.0221
    Scale: 1348.7371 0.0157 0.0119 0.0220
    Add: 1450.3019 0.0213 0.0165 0.0270
    Triad: 1446.2573 0.0223 0.0166 0.0268

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