Author: Jeremiah Penery
Date: 18:30:56 10/03/02
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On October 03, 2002 at 20:39:02, Omid David wrote: >On October 03, 2002 at 20:29:28, Jeremiah Penery wrote: > >>On October 03, 2002 at 19:39:27, Omid David wrote: >> >>>BTW, how much (in percentage or NPS) did the implemented draw detection slow >>>down the engine? >> The only difference in the two benches below is the blocked-position draw >>detection. >>With detection: >>Total nodes: 69410117 >>Raw nodes per second: 708266 >>Total elapsed time: 98 >> >>Without: >>Total nodes: 69410117 >>Raw nodes per second: 715568 >>Total elapsed time: 97 >Quite impressive, just 1.02% slower (paractically negligible). Do you invoke >that detection at every node in the search tree? Yes, but most of the time it exits very quickly (a couple of 'if' clauses). I could probably make it cost even less, but I'm not very interested in doing that yet.
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