John,
I have a Dell P4 that I've run your stream test on. I used
RH7.0 and the kgcc compiler (egcs-1.1.2 I believe). I hope
you find the results useful.
Wes Bauske (PDS Inc)
[wsb@wsb64 stream]$ stream_d.p4
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 4000000, Offset = 0
Total memory required = 91.6 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 2 microseconds.
Each test below will take on the order of 36025 microseconds.
(= 18012 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: 1352.4930 0.0474 0.0473 0.0476
Scale: 1364.3423 0.0470 0.0469 0.0474
Add: 1572.1212 0.0619 0.0611 0.0680
Triad: 1555.2601 0.0619 0.0617 0.0623
This archive was generated by hypermail 2b29 : Sun Jan 28 2001 - 18:38:17 CST