AlphaServer GS320-68/1001 with 4 cpus

From: John Henning (henning@perfom.zko.dec.com)
Date: Tue Jul 17 2001 - 05:07:13 CDT

  • Next message: John Henning: "AlphaServer GS320-68/1001 with 8 cpus"

    Hi John,

       This is the AlphaServer GS160-68/1001 with 4 CPUs. It uses the
    same binary as was used for
       http://www.cs.virginia.edu/stream/stream_mail/2000/0013.html

    -john

    Script started on Mon May 28 15:57:35 2001
    % echo "18500142,0,10" | ../../mcc_omp_nodebug_20000510
     n, offset, ntimes
    ----------------------------------------------
     Double precision appears to have 16 digits of accuracy
     Assuming 8 bytes per DOUBLE PRECISION word
    ----------------------------------------------
     Array size = 18500142
     Offset = 0
     The total memory requirement is 423.43 MB
     You are running each test 10 times
     The *best* time for each test is used
     ----------------------------------------------------
     Your clock granularity/precision appears to be 1000 microseconds
     The tests below will each take a time on the order
     of 71000 microseconds
        (= 71 clock ticks)
     Increase the size of the arrays if this shows that
     you are not getting at least 20 clock ticks per test.
     ----------------------------------------------------
     WARNING -- The above is only a rough guideline.
     For best results, please be sure you know the
     precision of your system timer.
     ----------------------------------------------------
    Function Rate (MB/s) RMS time Min time Max time
    Copy: 2740.7618 0.1089 0.1080 0.1130
    Scale: 2690.9297 0.1108 0.1100 0.1110
    Add: 2901.9831 0.1537 0.1530 0.1540
    Triad: 2883.1390 0.1546 0.1540 0.1550
     Sum of a is = 2.133622822385785E+019
     Sum of b is = 4.267245645396539E+018
     Sum of c is = 5.689660857414201E+018
    % /usr/sbin/psrinfo -v | head -4
    Status of processor 0 as of: 05/28/01 15:59:03
      Processor has been on-line since 05/28/2001 15:29:07
      The alpha EV6.8CB (21264C) processor operates at 1001 MHz,
            and has an alpha internal floating point processor.
    % /usr/sbin/psrinfo -v | grep on-line | wc -l
             4
    % head -1 /etc/motd
    Compaq Tru64 UNIX V5.1 (Rev. 732); Fri May 4 15:48:25 EDT 2001
    % exit
    %
    script done on Mon May 28 15:59:28 2001



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