henning@perfom.zko.dec.com (John Henning) on 06/16/2000 04:51:00 PM
To: John D Mccalpin/Austin/IBM@IBMUS
Subject: 4cpu Compaq_AlphaServer_GS320 and Compaq_AlphaServer_GS160
Hi John,
This is a 4-CPU run (only 4 CPUs powered on) from an AlphaServer
GS160 or GS320. It uses the same executable as
http://www.cs.virginia.edu/stream/stream_mail/2000/0013.html and
as you can see, it was actually run on the same day!
- John
Script started on Wed May 10 15:00:53 2000
% unlimit
% ./mcc_omp_nodebug_20000510
n, offset, ntimes
120000549,0,10
----------------------------------------------
Double precision appears to have 16 digits of accuracy
Assuming 8 bytes per DOUBLE PRECISION word
----------------------------------------------
Array size = 120000549
Offset = 0
The total memory requirement is 2746.59 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 487000 microseconds
(= 487 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: 2455.2542 0.7906 0.7820 0.8590
Scale: 2412.0713 0.7964 0.7960 0.7980
Add: 2644.6402 1.0893 1.0890 1.0910
Triad: 2564.5709 1.1236 1.1230 1.1260
Sum of a is = 1.383967266434037E+020
Sum of b is = 2.767934540034517E+019
Sum of c is = 3.690579379856141E+019
% exit
%
script done on Wed May 10 15:03:27 2000
This archive was generated by hypermail 2b29 : Sat Jun 17 2000 - 05:16:38 CDT