standard STREAM on IBM eServer p5 570 (1900 MHz, 16 cpu)

From: Frank Johnston (fjohn@us.ibm.com)
Date: Mon Jul 12 2004 - 16:09:10 CDT

  • Next message: Frank Johnston: "tuned STREAM on IBM eServer p5 570 (1900 MHz, 16 cpu)"

    IBM eServer p5 570 (1900 MHz, 16 cpu, 36MB L3 cache) with DDR2 memory.

    Requesting Large Pages
    Setting up for 2 CPUs per module
    Number of segments per array = 8
    CPU binding list : 0 2 4 6 8 10 12 14
    Shared Segment Pointer = 504403158265495552
    Shared Segment Pointer = 504403160412979200
    Shared Segment Pointer = 504403162560462848
    Segment Size (B) = 268435456 (MB = 256 )
    Array Size (B) = 2147483648 (MB = 2048 )
    Array Size (DW) = 268435456
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    Num_threads = 16
    rebind: num_parthds is 16
    Starting Initialization
    Done With Initialization
    a(1) 1.00000000000000000
    b(M) 1.00000000000000000
    c(M)
    1.00000000000000000----------------------------------------------------
    Incremental Offset = 1536
    ----------------------------------------------
    Double precision appears to have 16 digits of accuracy
    Assuming 8 bytes per DOUBLE PRECISION word
    ----------------------------------------------
    Array size = 268305408
    The total memory requirement is 6141 MB
    You are running each test 5 times

    --
    The *best* time for each test is used
    *EXCLUDING* the first and last iterations
    ----------------------------------------------------
    Your clock granularity appears to be less than one microsecond
    Your clock granularity/precision appears to be 1 microseconds
    ----------------------------------------------------
    Function Rate (MB/s) Avg time Min time Max time
    Copy: 39094.4901 .1113 .1098 .1122
    Scale: 39406.2714 .1093 .1089 .1099
    Add: 42815.5969 .1505 .1504 .1508
    Triad: 44240.9203 .1457 .1456 .1458
    ----------------------------------------------------
    Solution Validates!
    ----------------------------------------------------
    


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