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Subject: Re: Hyper-Threading Technology from Intel-to Hype or Not to Hype?

Author: Sune Fischer

Date: 02:24:33 03/07/03

Go up one level in this thread


On March 06, 2003 at 16:36:15, Robert Hyatt wrote:

>On March 06, 2003 at 11:38:26, Vincent Diepeveen wrote:
>
>>On March 05, 2003 at 18:08:45, Robert Hyatt wrote:
>>
>>you read postings of me seemingly, but i am only owning a dual 1.6ghz K7 with a
>>slow 133Mhz bus, and because crafty is a cache eather a few guys which are at
>>150Mhz or 166Mhz bus with a dual XP, they rock of course with crafty on that
>>machine.
>>
>>See postings of several of them here at CCC. Just look around. I remember one
>>from a few weeks ago even which i noticed.
>>
>>note that a dual XP 2400 already when put to 2.1ghz (so a very little bit
>>overclocked the DDR ram, not so much the processor) is getting
>>2.2MLN nodes a second hands down.
>
>I'm waiting for someone to post a real result here from a _stock_ CPU.  I don't
>go for
>overclocking and I don't consider overclocked numbers.
>
>And this NPS is on the bench command, with no crafty.rc file (default hash and
>everything).
>

Everything at default, no .rc file I get:

Total nodes: 65248520
Raw nodes per second: 1186336
Total elapsed time: 55
SMP time-to-ply measurement: 11.636364

On Crafty v1903b (compiled by Dann Corbit I think).

It's from an XP2400+ (running at 2.00 GHz), using a cheapo Soltek Mobo and
PC2100 DDR memory (running at CAS 2.5).

I'm not sure the other bios settings are optimized either, no overclocking.

Unfortunately I didn't have smp version of v.19.03 so I had to use the older
v.18.15.

Using that one on the 2 GHz I benched 994951, on a Dual Asus board XP1800+ (1533
MHz chips) this version with mt=2 scored 1286896.

So if you extrapolate the speed difference from v.18.15 to v. 19.03 and scale
linearly the dual factor, it looks like 2 x 2100 MHz should give you the same
performance. Those would be MP2400+ chips I guess, but they come at 2600+ now
and memory at PC3300, CAS 2.0 no doubt.

Time to try out the competition perhaps? :)

-S.





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