From: Dr. Bob (drbob@inow.com)
Date: Fri Jul 08 2005 - 20:33:44 CDT
Hi,
I don't know if you are still updating the stream results table, but
here's the score for my new server a Rackable C2004 with an ASUS
PSCH-SR/IDE motherboard. 1GB RAM dual channel, Pentium4 3GHz 1M 800MHz
FSB. The code is unmodified from your site and compiled with:
gcc -O3 -march=prescott stream.c -o stream
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This system uses 8 bytes per DOUBLE PRECISION word.
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Array size = 2000000, Offset = 0
Total memory required = 45.8 MB.
Each test is run 10 times, but only
the *best* time for each is used.
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Your clock granularity/precision appears to be 5 microseconds.
Each test below will take on the order of 8653 microseconds.
(= 1730 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.
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Function Rate (MB/s) Avg time Min time Max time
Copy: 2750.7889 0.0124 0.0116 0.0134
Scale: 2746.5718 0.0127 0.0117 0.0136
Add: 3238.8888 0.0160 0.0148 0.0171
Triad: 3253.7918 0.0160 0.0148 0.0171
-------------------------------------------------------------
Solution Validates
-------------------------------------------------------------
Dr. Bob
"A facility for quotation covers the absence of original thought."
--Lord Peter Wimsey
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