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Subject: Re: Rebel 12.0 (beta 9) on ICC

Author: Ed Schröder

Date: 16:41:38 07/31/03

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On July 31, 2003 at 19:29:14, Slater Wold wrote:

>On July 31, 2003 at 18:41:50, Dann Corbit wrote:
>
>>On July 31, 2003 at 08:27:55, Slater Wold wrote:
>>
>>>On July 31, 2003 at 02:45:21, Ed Schröder wrote:
>>>
>>>>On July 30, 2003 at 18:50:33, Slater Wold wrote:
>>>>
>>>>>Time Control = 5/5
>>>>>Shreder 7.04 - Dual P4 3.06Ghz - +3 -15 =1  (10 loses on time)
>>>>>Deep Fritz 7 - Dual AMD 2.3Ghz - +1 -8 =3   (11 loses on time)
>>>>>Time Control = 15/5
>>>>>Deep Fritz 7 - Dual AMD 2.3Ghz - +0 -0 =1
>>>>
>>>>
>>>>Slate,
>>>>
>>>>You have been playing this under Chesspartner I assume?
>>>>
>>>>I have no idea, everything looks fine here but I haven't played Rebel on ICC
>>>>yet. Maybe it is related to the permanent brain, that wouldn't be the first time
>>>>and you should turn off pondering for this version playing ICC.
>>>>
>>>>
>>>>>Total of 12 hours on ICC = +4 -23 =5 (And 23 loses on time.)
>>>>
>>>>That must have been frustrating for you :)
>>>>
>>>>Anyway, thanks for pointing this out.
>>>>
>>>>Ed
>>>>
>>>>
>>>>>Games will follow.
>>>
>>>Using 200MB hash, I haven't lost on time in 15 games.
>>>
>>>I think using 400MB hash is what was locking up the search.
>>>
>>>I have 1GB of RAM, but....it does seem that the hash was the problem.
>>>
>>>And now it's not losing on time, and doing much better against it's opponents.
>>>:)
>>
>>400 MB hash in a blitz game!
>>
>>That is always going to be a problem.  Even if it could move on time, it's going
>>to play crappy.
>>
>>Think of how long it takes to clear out 400 MB of memory.
>
>On a P4?  Not long.
>
>But Rebel uses a swap file, which is probably a bit of a problem.  Even on an
>U320 SCSI drive.

During blitz games Rebel only uses a small part of the hash table, no swapping
possible. See the PARAM.TXT file.

Ed



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