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Subject: Re: Bebe and Belle

Author: Robert Hyatt

Date: 07:01:14 10/06/99

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On October 06, 1999 at 04:21:31, Eelco de Groot wrote:

>Robert, Eugene, what does prevent Crafty of adopting the better search of Cray
>Blitz? I understand there are big architectural differences but what do you
>think would be the main factor?
>
>Thanks for any comments,
>
>Eelco
>
>

Not a thing.  IE I have been experimenting with singular extensions (used in
Cray Blitz) off an on.  I just haven't found anything that I particularly like
yet...  But you can bet that nothing inside cray blitz will be lost, except
for the vectorizabile stuff that will perform very poorly on a PC.  But other
search ideas used there will eventually be tried in Crafty...



>On October 06, 1999 at 01:43:31, Eugene Nalimov wrote:
>
>>464 will have multithreading on chip. That will help Crafty even more, as that
>>will help to mask L2 cache/memory latencies...
>>
>>Eugene
>>
>>On October 06, 1999 at 01:41:14, Dann Corbit wrote:
>>
>>>On October 06, 1999 at 01:02:29, Robert Hyatt wrote:
>>>[snip]
>>>>Probably...  although the search of Cray Blitz is better (selective stuff on the
>>>>end, plus singular extensions and some chess-specific threat extensions as
>>>>well).  But a 16 cpu 21264 could easily hit 16M nodes per second...
>>>
>>>COMPAQ (The artist formerly known as DEC) makes a 32 CPU version.
>>>
>>>I keep thinking of what it could do with that many 21464's.



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