Author: David Rasmussen
Date: 11:20:31 12/03/01
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On December 03, 2001 at 13:15:36, Severi Salminen wrote: >>If you have collisions, you _will_ fuck up evaluation. > >Yep, but the question is: "does it really matter?". On my slow computer using >32-bit keys instead of 64-bit speeds things up a lot so I have no question what >to use - even if I get a few collisions the speed up is worth it. So far I have >seen identical results from both 32-bit and 64-bit versions but I have to test >this maybe more. This will of course be different when 64-bit processors show >up. > >Have you seen any situations where the 32-bit version gives different PV or >scoring than the 64-bit version? I mean that 1 collision after 5 seconds (that >is probably after 500000+ nodes) might mean nothing. > >Severi There is a chance, of course, that it won't affect anything important, but who knows? I sure don't want speed for incorrectness. What if this happens on the pv? Furthermore, I was under the impression that collisions _shouldn't_ happen, even with 32 bits, but it does here. /David
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