HP C180 XP
euclid:/home2/bill>uname -a
HP-UX euclid B.10.20 A 9000/780 2005196030 two-user license
euclid:/home2/bill>cc +DA2.0 +O4 +Odataprefetch stream_d.c second_cpu.c -lm &&
./a.out
stream_d.c:
second_cpu.c:
/usr/ccs/bin/ld: (Warning) At least one PA 2.0 object file (stream_d.o) was dete
cted. The linked output may not run on a PA 1.x system.
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 8500000, Offset = 0
Total memory required = 194.5 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 9999 microseconds.
Each test below will take on the order of 260000 microseconds.
(= 26 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: 256.6038 0.5320 0.5300 0.5400
Scale: 256.6038 0.5340 0.5300 0.5500
Add: 240.0000 0.8560 0.8500 0.8600
Triad: 237.2093 0.8650 0.8600 0.8700
-- Bill Broadley Bill@math.ucdavis.edu UCD Math Sys-Admin Linux is great. http://math.ucdavis.edu/~bill PGP-ok
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