Hi John,
A result for your streams table.
Thanx,
Claus Jeppesen
Computer: Polywell 800K7
CPU: 600Mhz AMD K7 (Athlon)
Memory: 256MB PC100 RAM
Compiler: Portland Group - pgf77 -fast streams_d.f
I used the version of second_cpu.f which implies etime(...) - results from
time and streams_d.f :
----------------------------------------------
Double precision appears to have 16 digits of accuracy
Assuming 8 bytes per DOUBLE PRECISION word
----------------------------------------------
Array size = 8000000
Offset = 0
The total memory requirement is 183 MB
You are running each test 10 times
The *best* time for each test is used
----------------------------------------------------
Your clock granularity/precision appears to be 10000 microseconds
The tests below will each take a time on the order
of 220000 microseconds
(= 22 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: 387.8788 0.3390 0.3300 0.3400
Scale: 474.0741 0.2700 0.2700 0.2700
Add: 480.0000 0.4061 0.4000 0.4200
Triad: 468.2927 0.4150 0.4100 0.4200
Sum of a is = 9.2264062494077470E+018
Sum of b is = 1.8452812500593927E+018
Sum of c is = 2.4603749999959350E+018
15.690u 0.870s 0:17.11 96.7% 0+0k 0+0io 103pf+0w
This archive was generated by hypermail 2b29 : Tue Apr 18 2000 - 05:23:08 CDT