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Subject: Re: 10K SCSI vs 7200 IDE

Author: Slater Wold

Date: 11:36:10 01/16/02

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On January 16, 2002 at 12:33:09, Thomas Mayer wrote:

>Hi,
>
>>I don't have corrupt TB's, but of course the 6 man is not complete.  They are
>>not all available yet.
>
>afaik Junior 7 does not use 6 men at all in search...

Yes it does.  I setup a position with 6 pieces (a TB I had) and it was 100%
TB's.

>but strange is, that you have different results in score, nodes etc... so this
>example does not prove anything...

Sure it does.  The faster search makes the score update quicker.  And the scores
are exactly the same.

>it seems that the hashtables were not deleted

Yes they were.  That is an option on DJ7.

>or whatever, in common you should get same scores, nodecounts, egtbhits etc. -

I was using two different HD's.  Like using 2 different CPU's.  Should they
match up then?!

>ah, and you shouldn't try to comparisson with Deep Junior to measure the disk
>speed, with more then one CPU the results are not to reproduce...

Yes they are.  I tried that after my first test.  Using 2 CPU's is sproadiac,
but not on the same position.  Although SMP branching is mostly random.

>maybe you try
>it with a winboard engine that definitely clears hash after every setboard

The hash was cleared.  I had to close the program completly to do this test, and
I had DJ7 clear the hash.  It's an option on the engine.

>command. One I know that for sure is Quark... :) The current release version
>uses TBs VERY agressive so that might be a good disk test... (Please use my
>version then and not Danns compilation - Danns is faster but does also produce
>unreproduceable results for whatever reason...)

Ok, I will when I get home.

>
>Greets, Thomas



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