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Subject: Re: Important about some chess engines under Win98

Author: Robert Hyatt

Date: 07:48:36 02/20/04

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On February 20, 2004 at 05:48:40, Sedat wrote:

>
>I made a test about some engines with TaskInfo2002 4.0 on  Win98.
>I wanted to increase the hashsize to 128 mb hash of these engines but what a
>pity  that they did not go  more than 2 mb:
>
>-Sos 4 For Arena
>-Genius 7
>-DeepSjeng 1.5-not more than 16mb
>
>For Example -Sos 4 for Arena by TaskInfo2002 4.0 under win98:
>
>|Process|                |% CPU| |LT % CPU|  |Time| |Sw/s| |InMem KB|
>
>+ SOS-4_Arena.exe        100,00%     72,04%    0:34     42    2.588
>
>---------------------------------------------------------------------------
>But under Windows XP Professional:
>
>-There is no any problem with the  hashtable of these engines and any hashtable
>its possible to increase ...
>
>For Example -Sos 4 for Arena by TaskInfo2002 4.0 under XP:
>
>|Process|                |% CPU| |LT % CPU|  |Time| |Sw/s| |InMem KB|
>
>+ SOS-4_Arena.exe        100,00%     72,04%    0:34     42    134.444
>------------------------------------------------------------------------------
>
>So for ComputerChess is better Windows XP Professional !!!
>
>Regards,
>Sedat

I believe your conclusions are wrong.  If the hash table is not in real memory,
it is in virtual memory.  No way you can get 100% cpu utilization with a lot of
swapping/paging going on.

Maybe the number you are looking at doesn't mean what you think it means?




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