Mr. McCalpin,
The following message is the one that I sent a while back to
contribute to your system performance database. HNSX have asked
me to add the precision that this is for a 1 CPU benchmark and not 4 as could
be interpreted from the entry.
I would appreciate it if you could make the correction and somehow
make it public.
Thanks for your time,
P.S. Was the SS92 competition worth your while?
-- ------------------------------------------------------------------------------ Michel Dansereau | Environment Canada Tel: (514) 421-4696 | Atmospheric Environment Service (AES) Email: mdansereau@cid.aes.doe.ca | Dorval Computing Centre (CMIS) Fax: (514) 421-4703 | Systems Group (CMISS) ------------------------------------------------------------------------------ aspgmid > > > > M. McCalpin > > I ran the Stream benchmark on our SX3/44 and obtained the following > results: > > -------------------------------------- > The overhead of calling second = 2.251414E-06 seconds. > Timing calibration ; time = 9.539266917478173 hundredths of a second > Increase the size of the arrays if this is <30 and your clock precision is =<1/100 second > --------------------------------------------------- > Function Rate (MB/s) RMS time Min time Max time > Assignment:16940.9591 0.0331 0.0331 0.0331 > Scaling :15640.6689 0.0358 0.0358 0.0359 > Summing :22436.5215 0.0376 0.0374 0.0380 > SAXPYing :21972.1612 0.0383 0.0382 0.0388 > -------------------------------------- > > Modifications: > The time required to get the "time" was evaluated and subtracted from > the timing of the loops. > > The second() function was written to take advantage of the internal > free running "tic counter" ( f = 1 / 2.9E09 ). > > > > HNSX personnel on site have approved of these figure and mentioned > that they are conservative. > > > > -- > ------------------------------------------------------------------------------ > Michel Dansereau | Environment Canada > Tel: (514) 421-4696 | Atmospheric Environment Service (AES) > Email: mdansereau@cid.aes.doe.ca | Dorval Computing Centre (CMIS) > Fax: (514) 421-4703 | Systems Group (CMISS) > ------------------------------------------------------------------------------ >
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