hp rp8400 (750MHz PA-8700) 4-way Stream

From: Kirby Collins (kcollins@rsn.hp.com)
Date: Fri Sep 21 2001 - 16:36:26 CDT

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    attached are Stream results for an rp8400 with:

    1 cell (in a single partition)
    4 cpus (fully populated with 4 cpus/cell)
    8GB of memory (fully populated with 512MB DIMMs)
    750MHz PA-8700 cpus
    running HP-UX 11i, September patch bundle

    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 stream_d.f second_wall.o

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

    for 16 and 32 cpu runs:
    63c63
    < PARAMETER (n=2000000,offset=0,ndim=n+offset,ntimes=10)

    ---
    >       PARAMETER (n=53477800,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 = 53477800 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: 1556.2300 0.5500 0.5498 0.5502 Scale: 1541.2218 0.5555 0.5552 0.5559 Add: 1676.7441 0.7658 0.7655 0.7663 Triad: 1649.2237 0.7784 0.7782 0.7787 ---------------------------------------------------- Solution Validates! ----------------------------------------------------



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