Author: Michel Langeveld
Date: 06:11:44 05/31/03
A question since I get really curious. Nullmover gets at the first moves out of the book a hashhit % of around 15%. ---------------------------------------------------------------------- Bestline:7... Nxd4 8.Qxd4 e5 9.Qd1 Nd7 10.Bg2 Be7 11.o-o o-o 12.Nb5 depth: 10 ti me: 11.78 nodes: 3038519 nps: 257895 qnodes: 604162 qnodesperc: 19.88 evals: 196 8953 nullmoveCutOff: 21430 movesmade: 4024374 checks: 111579 hashprobes: 4450433 hashhits: 647228 hashhitperc: 14.54 hashstores: 1982648 hashused: 73.45 ---------------------------------------------------------------------- Later on this keeps dropping and dropping and soon the hashhit% is around 2.5% I have think something is wrong but what should be a normal hashhit% ? Bestline:25... Qh4 26.Nc3 Rc8 27.Qd1 Qe7 28.f4 exf4 depth: 7 time: 3.89 nodes: 1 039344 nps: 267115 qnodes: 209377 qnodesperc: 20.14 evals: 857403 nullmoveCutOff : 3606 movesmade: 1304290 checks: 1674515 hashprobes: 1695369 hashhits: 49246 ha shhitperc: 2.90 hashstores: 126487 hashused: 99.99 ------------------------------------------------------------------------------ Bestline:25... Qh4 26.Nc3 Rc8 27.Qd1 Qe7 28.f4 exf4 depth: 7 time: 3.89 nodes: 1 039344 nps: 267115 qnodes: 209377 qnodesperc: 20.14 evals: 857403 nullmoveCutOff : 3606 movesmade: 1304290 checks: 1674515 hashprobes: 1695369 hashhits: 49246 ha shhitperc: 2.90 hashstores: 126487 hashused: 99.99 ------------------------------------------------------------------------------ I count a hashhit as when I get a return value from the hashtable. It can be I get a good move from the table what is used for ordering but I don't count this as a hashhit currently. I count a hashprobes when I look in the hashtable. Kind regards, Michel
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