Author: blass uri
Date: 01:22:14 01/24/00
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On January 23, 2000 at 22:58:42, Robert Hyatt wrote: >That is where we disagreed. I absolutely said it was not a good idea. And >could see _no_ reason Hsu would invest that much work. I know _I_ don't write >code just for the heck of it... And I absolutely hate to rewrite already >existing code for the heck of it... which is what we would be asking him to >do: "Hsu, please take your hardware design, reproduce it in C, and put it into >a program so we can see how it does. We know it will be way slower. And >that your old search won't work well as it was tuned for a much faster program. >And that the eval weights might not be tuned to the new shallower depth... But >do it anyway." > >Berliner reported in a HiTech paper that when he tried testing at very shallow >depths it broke his program because his eval assumed a certain basic search >depth to find some simple tactics... and when he ran the "hitech vs lotech" >tests to try to predict rating per ply increases, he saw this. I don't think >it is possible to just re-do DB in a PC disguise. I think Hsu would start over >and end up with something pretty similar to what everybody else has. Evolution >has not brought us all to the same 'neighborhood' accidentally... If the evaluation was not good for 100,000 nodes/second but only for 200,000,000 nodes/seconds then the 38:2 or 10:0 results against micros do not make sense. If the evaluation was also good for 100000 nodes/second then there is no reason not to do it for the PC because I believe based on hsu's words that it can search 100000 nodes/seconds in the near future on regular computers and if it is 400 elo better than 2450 ssdf rating at 100000 nodes/seconds(I assume that the 38:2 or 10:0 results were against programs with 2450 ssdf rating on p200 and not against weaker programs like sargon) then it can be the best in comp-comp in the near future. Uri
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