Author: Robert Hyatt
Date: 07:59:09 05/03/04
Go up one level in this thread
On May 03, 2004 at 01:50:44, Gian-Carlo Pascutto wrote: >On May 02, 2004 at 21:03:06, Robert Hyatt wrote: > >>But it is within the noise >>range for non-deterministic behavior anyway... > >I showed that the difference was statistically >significant, so that argument holds no water. > >-- >GCP Fine, then hold _this_. We both ran the positions Vincent claimed produced _no_ speedup whatsoever for Crafty. You got 2.8x overall on a quad 550 of mine you were using. I got 3.0 on my quad 700. I sent you _both_ the logs. I then ran the same test with null-move disabled (sel=0/0) and got a speedup of 3.1 If you want to claim that 3.1 over 2.8 or 3.0 is that significant, go ahead. I don't. I found that turning null off increased the speedup by 3.33%. If that is significant to you, fine. To me, based on Vincent's attempt to explain his poor SMP search results by blaming null-move, it is _not_ significant. Statistics or other hand-waving notwithstanding.... If you take your numbers it is a 10% change. That is _still_ orders of magnitude from what he needed to explain the difference between his search and the DTS results...
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