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Subject: Re: Definitely 2.3 mil.

Author: Matt Taylor

Date: 18:51:41 02/21/03

Go up one level in this thread


On February 21, 2003 at 19:49:55, Aaron Gordon wrote:

>On February 21, 2003 at 18:08:58, Robert Hyatt wrote:
>
>>On February 21, 2003 at 17:37:35, Aaron Gordon wrote:
>>
>>>On February 21, 2003 at 08:04:18, Mike Byrne wrote:
>>>
>>>>On February 21, 2003 at 08:02:34, Mike Byrne wrote:
>>>>
>>>>>On February 21, 2003 at 07:14:47, Charles Worthington wrote:
>>>>>
>>>>>>On February 21, 2003 at 07:05:22, Charles Worthington wrote:
>>>>>>
>>>>>>>On February 21, 2003 at 06:47:11, Mike Byrne wrote:
>>>>>>>
>>>>>>>>On February 21, 2003 at 04:46:53, Charles Worthington wrote:
>>>>>>>>
>>>>>>>>>Bob what program is required for me to conduct benchmark tests with Crafty?
>>>>>>>>>Could you please e-mail it or post a link here to it? Thank you.
>>>>>>>>
>>>>>>>>Charles,
>>>>>>>>
>>>>>>>>You have it, the "crafty" program has a built in benchmark ....start crafty in
>>>>>>>>dos mode (console) with no crafty.rc file ( a plain taxt file you create with
>>>>>>>>engine parameters - but in this case - do not have a crafty.rc file in the same
>>>>>>>>directory as crafty).
>>>>>>>>
>>>>>>>>Type word "bench" at the command prompt.
>>>>>>>>
>>>>>>>>Mike
>>>>>>>
>>>>>>>
>>>>>>>Thanks Mike. I haven't set the Crafty you sent me up yet so I didn't know. In
>>>>>>>all honesty I have no Idea  how to set it up to run on the Chessbase server. The
>>>>>>>Crafty that comes with fritz is already set up so I have never had to set one up
>>>>>>>yet. The other foreign progs are easy just drop in the  eng and dll and you are
>>>>>>>done. This does not look so easy. :-)
>>>>>>
>>>>>>
>>>>>>
>>>>>>640 kNs.....Not good :-)
>>>>>
>>>>>on your new  machine??
>>>>
>>>>ok I see it in your title ...that is respectable for 1.2Ghz Celeron -- it's in
>>>>the ballpark -- I think a dual 3 Ghz will get 3M nps....
>>>
>>>Hyatts Dual xeon 2.8GHz only gets 2.1 million in the benchmark..
>>>If you scale it up to 3.06x2 + HT you'll only see about 2.3 million.
>>
>>I won't try to predict that performance, it needs testing.  The 3.06 xeons
>>have 533mhz FSB, while my 2.8s are 400.  That is a difference above and beyond
>>the raw clock speed.
>
>When I did testing vs Athlon SDR systems and DDR systems I noticed next to no
>difference in Crafty's performance. Doubling bandwidth made less than a 2%
>increase (if even that). Here is the graph I did back then, all "Thunderbird"
>systems are SDR, all AthlonXP's are DDR. I also included 1GHz/100fsb Athlon
>Tbird results vs 1GHz/133fsb results. Here is the list:
>
>http://speedycpu.dyndns.org/crafty/c1900-bench.jpg
>
>So you can compare: AthlonXP 1600+'s are 1.4GHz, compare with Tbird 1.4GHz.
>AthlonXP 1500+'s are 1.33GHz, compare with the Tbird 1.33.
>
>>>Crafty v19.4 (1 cpus)
>>>
>>>White(1): mt=4
>>>max threads set to 4
>>>White(1): bench
>>>Running benchmark. . .
>>>......
>>>Total nodes: 104415743
>>>Raw nodes per second: 2130933
>>>Total elapsed time: 49
>>>SMP time-to-ply measurement: 13.061224
>>>White(1): end

A faster FSB does more than just add bandwidth. CL=2 ram on a 100 MHz FSB is
slower latency-wise than CL=2 ram on a 133 MHz FSB. The ram timings in your
results aren't posted, but I would bet that they are different in some cases.
This can make a world of difference, particularly since the processors burn off
a lot of precious cycles waiting on memory.

-Matt



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