Superdome 64-way Stream results

From: Kirby Collins (kcollins@rsn.hp.com)
Date: Fri May 18 2001 - 16:23:00 CDT

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    attached are Stream results for a Superdome with:

    16 cells (in a single partition)
    64 cpus (fully populated)
    256GB of memory (fully populated)
    552MHz PA8600 cpus, 500MHz system frequency
    running HP-UX 11i

    compiled with fortran90 in 64 bit mode as follows:

    f90 -o stream_d.mp +extend_source +autodbl4 +DA2.0W +noppu +DS2.0 +O3 -Wl,+pd,L -Wl,-aarchive +Oparallel strea
    m_d.f second_wall.o

    and source modified to adjust array size and put arrays in COMMON:

    for 64 cpu runs:
    63c63
    < PARAMETER (n=2000000,offset=0,ndim=n+offset,ntimes=10)

    ---
    >       PARAMETER (n=53477816,offset=0,ndim=n+offset,ntimes=10)
    88c88
    < *     COMMON a,b,c
    ---
    >       COMMON a,b,c
    

    ---------------------------------------------- Double precision appears to have 16 digits of accuracy Assuming 8 bytes per DOUBLE PRECISION word ---------------------------------------------- Array size = 53477816 Offset = 0 The total memory requirement is 1224 MB You are running each test 10 times -- The *best* time for each test is used *EXCLUDING* the first and last iterations ---------------------------------------------------- Your clock granularity/precision appears to be 2 microseconds ---------------------------------------------------- Function Rate (MB/s) Avg time Min time Max time Copy: 25230.6682 0.0345 0.0339 0.0359 Scale: 21163.1446 0.0409 0.0404 0.0414 Add: 26102.0771 0.0494 0.0492 0.0497 Triad: 26717.1565 0.0486 0.0480 0.0500 ---------------------------------------------------- Solution Validates! ----------------------------------------------------



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