Streams on AlphaStation 600 5/300

From: John, dtn 381-0378 28-Aug-1995 0556 (henning@i4get.ENET.dec.com)
Date: Mon Aug 28 1995 - 04:58:51 CDT


Dear Professor McCalpin,

Please find enclosed results running Stream_d.f on a:

        "Digital AlphaStation 600 5/300".

If you abbreviate the name to fit in the tables, please include the full
"600 5/300", so as to ensure that it is not confused with the older DEC
3000 Model 600. The "5" indicates the 21164 chip (aka ev5), vs. the
older system's 21064 (ev4). The 300 indicates Mhz.

The program was compiled with the switch "O5" (enables software
pipelining), using the FORTRAN compiler V3.8-711, on Digital UNIX V3.2C.
The resolution of the timer is about 1/1000 of a second.

Best regards
    /John Henning
     CSD Performance Group
     Digital Equipment Corporation
     henning@zko.dec.com

--------------------------------------
 Double precision appears to have 16 digits of accuracy
 Assuming 8 bytes per DOUBLEPRECISION word
--------------------------------------
 Timing calibration ; time = 56.9984041154385 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: 157.6295 0.2051 0.2030 0.2157
Scaling : 156.1281 0.2064 0.2050 0.2089
Summing : 169.5876 0.2867 0.2830 0.2928
SAXPYing : 169.0048 0.2855 0.2840 0.2869
 Sum of a is : 1.153300781295937E+018
 Sum of b is : 2.306601562428219E+017
 Sum of c is : 3.075468750070628E+017



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