Author: Tord Romstad
Date: 06:48:42 06/14/04
Go up one level in this thread
On June 14, 2004 at 08:49:02, Uri Blass wrote:
>On June 14, 2004 at 07:51:05, Tord Romstad wrote:
>
>>On June 13, 2004 at 21:47:15, Robert Hyatt wrote:
>>
>>>If you only get 3% better after making yours bigger, somehow you and I are doing
>>>something so completely different that it boggles the mind. I got 10% faster
>>>going from 3/4M to 12M in the above. 20% going from 12K to 768K.
>>>
>>>Those are all current crafty on a Sony VAIO 750mhz laptop.
>>
>>Here are my results for a 13-ply search from the opening position with the
>>number of entries of the pawn hash table varying from 1 to 2^17. The first
>>column is the size of the table, the second column is the time (in seconds):
>>
>> 1: 39.30
>> 2: 33.34
>> 4: 32.64
>> 8: 31.92
>> 16: 31.02
>> 32: 30.48
>> 64: 30.00
>> 128: 29.43
>> 256: 29.10
>> 512: 28.70
>> 1024: 28.30
>> 2048: 28.19
>> 4096: 27.94
>> 8192: 27.71
>> 16384: 27.57
>> 32768: 27.38
>> 65536: 27.23
>>131072: 27.48
>>
>>The curve flattens out very quickly, as you can see.
>>
>
>It may be interesting to know if there is a bigger difference if you search to
>depth 15 from the opening position.
Not a big difference. Here are the results for a 15-ply search from
the initial position:
1: 5:38
8: 4:29
64: 4:13
512: 4:03
4096: 3:56
32768: 3:53
Tord
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