Author: Rick Bischoff
Date: 07:51:51 09/30/04
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>Your numbers seem low. I can get 16-25% exact+lower+upper hash cutoffs in the >opening position. Here are the results from a 100s search from the opening... They do indeed seem low, in particular I am only getting ~50% saturation... ***** 100552 ms elapsed 2736128 nodes 27211.1 nps. 109476/262144 saturation. 638188 probes %12.6201 hits, %0.0394868 exact %2.56351 lower, %1.11127 upper 188227 stores 36616 collisions 36939 overwrites (same key, same age, higher depth) Now, I made the change to store depth=0 stuff too (e.g., qsearch): ***** 100227 ms elapsed 2768896 nodes 27626.2 nps. 259769/262144 saturation. 625716 probes %35.9582 hits, %0.045388 exact, %2.37967 lower, %1.11137 upper. 1754748 stores, 1117774 collisions 363316 overwrites. Now, I increased the hash table size by 16x: ***** 100146 ms elapsed 2670592 nodes 26667 nps. 1064999/4194304 saturation. 621147 probes %52.1934 hits %0.0381552 exact %2.5073 lower %1.12389 upper 1706027 stores 176856 collisions 443522 overwrites Something smells fishy... I have no idea what!!
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