standard STREAM on IBM eServer p5 570 (1900 MHz, 8 cpu)

From: Frank Johnston (fjohn@us.ibm.com)
Date: Mon Jul 12 2004 - 16:08:59 CDT

  • Next message: Frank Johnston: "tuned STREAM on IBM eServer p5 570 (1900 MHz, 8 cpu)"

    IBM eServer p5 570 (1900 MHz, 8 cpu, 36MB L3 cache) with DDR2 memory.

     Requesting Large Pages
     Setting up for 2 CPUs per module
     Number of segments per array = 4
     CPU binding list : 0 2 4 6
     Shared Segment Pointer = 504403158265495552
     Shared Segment Pointer = 504403159339237376
     Shared Segment Pointer = 504403160412979200
     Segment Size (B) = 268435456 (MB = 256 )
     Array Size (B) = 1073741824 (MB = 1024 )
     Array Size (DW) = 134217728
     Num_threads = 8
     Num_threads = 8
     Num_threads = 8
     Num_threads = 8
     Num_threads = 8
     Num_threads = 8
     Num_threads = 8
     Num_threads = 8
     rebind: num_parthds is 8
     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 = 134155264
     The total memory requirement is 3070 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: 32372.1095 .0666 .0663 .0667
    Scale: 31545.4466 .0682 .0680 .0684
    Add: 34842.6183 .0925 .0924 .0927
    Triad: 35933.6462 .0900 .0896 .0902
     ----------------------------------------------------
     Solution Validates!
     ----------------------------------------------------



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