standard STREAM on IBM eServer p5 550 (1650 MHz, 4 cpu)

From: Frank Johnston (fjohn@us.ibm.com)
Date: Mon Jul 12 2004 - 16:09:31 CDT

  • Next message: Frank Johnston: "tuned STREAM on IBM eServer p5 550 (1650 MHz, 4 cpu)"

    IBM eServer p5 550 (1650 MHz, 4 cpu, 36MB L3 cache)

     Requesting Large Pages
     Setting up for 2 CPUs per module
     Number of segments per array = 2
     CPU binding list : 0 2
     Shared Segment Pointer = 504403158265495552
     Shared Segment Pointer = 504403158802366464
     Shared Segment Pointer = 504403159339237376
     Segment Size (B) = 268435456 (MB = 256 )
     Array Size (B) = 536870912 (MB = 512 )
     Array Size (DW) = 67108864
     Num_threads = 4
     Num_threads = 4
     Num_threads = 4
     Num_threads = 4
     rebind: num_parthds is 4
     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 = 67075072
     The total memory requirement is 1535 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: 6087.4877 .1764 .1763 .1765
    Scale: 5995.9638 .1793 .1790 .1797
    Add: 8016.9813 .2011 .2008 .2014
    Triad: 8200.6112 .1969 .1963 .1972
     ----------------------------------------------------
     Solution Validates!
     ----------------------------------------------------



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