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Subject: Re: Hash tables and data-cache, some programmer stuff...

Author: Robert Hyatt

Date: 06:06:21 01/20/98

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On January 20, 1998 at 02:21:09, Bernhard Bauer wrote:

>On January 19, 1998 at 12:57:52, Bruce Moreland wrote:
>
>>
>>On January 19, 1998 at 10:03:27, Robert Hyatt wrote:
>>
>>>On January 19, 1998 at 07:10:46, Bernhard Bauer wrote:
>>
>>>>   hash   depth   time  score   trans/ref  pawn  used w  used b    nps
>>>>    64k    31->  34.82   2.85         79%   99%     98%    b96% 109889
>>>>    96k    31->  23.34   3.04         53%   99%     99%    b98% 125695
>>>>   192k    31->  25.12   3.04         66%   99%     99%    b98% 122916
>>>>   384k    31->  17.73   3.02         74%   99%     99%    b98% 126340
>>>>   768k    31->   9.85   3.25         90%   99%     99%    b98% 125667
>>>>   1.5M    31->   6.50   3.25        121%   99%     79%    b92% 126525
>>>>     3M    31->   3.17   3.25        136%   99%     27%    b37% 123640
>>>>     6M    31->  34.66   2.85         79%   99%     98%    b96% 110491
>>>>    12M    31->  34.25   2.85         82%   99%     88%    b83% 109862
>>>>    24M    31->  36.02   2.85         84%   99%     68%    b62% 110227
>>
>>1) How much memory is on the machine?
>>
>
>This is a PPro/200 with 64 Mb memory running WinNT4.0.
>
>>2) Notice how the 6M line is almost identical with the 64K line.  Isn't
>>that suspicious?
>
>I tend to think so too, however, I have not enough nowledge about
>crafty.
>Therefor I would like to see other programs behavior on this problem.
>May be you could show us how Ferret does?
>
>Kind regards
>Bernhard
>
>>
>>bruce


something is definitely wrong.  the hash usage should continue to drop
as
you make the hash table larger and larger.  However the last 3 show that
it
is higher than the ones before it.  I will try to run this myself in a
bit
and post my results on a 128mb machine...




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