Author: Mike Byrne
Date: 04:35:00 05/31/04
Go up one level in this thread
On May 31, 2004 at 07:03:38, Mike Byrne wrote: >On May 31, 2004 at 00:55:28, Joseph Merolle wrote: > >>Mike what is your cpu speed and ram? 2.03 min is really fast on my lap top 3.06 >>ghz 256 ram it finds in about 3 min. >> > >I have a dual 1.7 Ghz with 512M ram, For the test below , Shredder was set to 2 >threads with about 48M hash. The difference is probably the dual CPU machine. >It somtimes can be more than twice as fast and for other positions can be less >than twice as fast. I will run it with one thread and see what the result is. > > >> >> >>On May 31, 2004 at 00:04:01, Mike Byrne wrote: >> >>>[d]Kasparov,G - Comp Deep Blue, Philadelphia m 1996 >>>2rr2k1/pp1qnppp/2n1p3/3p4/1bPP3P/1P2RNP1/PB3P2/1BRQ2K1 w - - 0 1 >>> >>>Analysis by Shredder 8: >>> >>>20.Ng5 Ng6 21.Qh5 Bc5 22.dxc5 >>> ± (1.13) Depth: 1/10 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bxa3 21.Bxa3 dxc4 >>> ± (0.85) Depth: 5/16 00:00:00 >>>20.a3 Bd6 21.Ng5 Nf5 22.Bxf5 exf5 >>> ± (0.94) Depth: 5/18 00:00:00 >>>20.a3 Bd6 21.Ng5 h6 22.Bh7+ Kf8 23.Nf3 >>> ± (0.94) Depth: 6/14 00:00:00 >>>20.a3 Bd6 21.Ng5 h6 22.Nf3 Re8 23.Qc2 >>> ± (0.75) Depth: 7/20 00:00:00 53kN >>>20.a3 Bd6 21.Qd2 dxc4 22.bxc4 Bc7 23.h5 Nf5 24.Bxf5 exf5 >>> ± (0.73) Depth: 8/20 00:00:00 150kN >>>20.a3 Bd6 21.Qd2 Bc7 22.Qe2 dxc4 23.bxc4 Bb6 24.Ng5 Nxd4 25.Bxh7+ Kf8 >>> ± (0.71) Depth: 9/22 00:00:01 265kN >>>20.a3 Bd6 21.Qd2 Bc7 22.Re2 dxc4 23.bxc4 Bb6 24.d5 exd5 25.Qg5 >>> ± (0.71) Depth: 10/25 00:00:02 632kN >>>20.a3 Bd6 21.Qd3 g6 22.Qc3 Nf5 23.Bxf5 exf5 24.Qb4 >>> ² (0.67) Depth: 11/30 00:00:04 1439kN >>>20.a3 Ba5 21.Ng5 h6 22.Nf3 dxc4 23.bxc4 Bb6 24.c5 Ba5 25.Qb3 Qc7 26.Be4 >>> ² (0.56) Depth: 12/30 00:00:10 3631kN >>>20.a3 Ba5 21.g4 Ng6 22.h5 Nf4 23.Qc2 g6 24.Qf5 exf5 25.Re8+ Rxe8 >>> ² (0.54) Depth: 13/34 00:00:24 8611kN >>>20.a3 Ba5 21.Ng5 h6 22.Nf3 dxc4 23.bxc4 Bb6 24.c5 Ba5 25.Qb3 Nd5 26.Re2 Qc7 >>>27.Qd3 >>> ² (0.57) Depth: 14/31 00:00:47 16059kN >>>20.a3 Ba5 21.Ng5 h6 22.Nf3 dxc4 23.bxc4 Bb6 24.c5 Ba5 25.Qb3 Nd5 26.Re2 Qc7 >>>27.Bd3 >>> ² (0.64) Depth: 15/40 00:01:25 28708kN >>>20.Bxh7+ Kxh7 21.Ng5+ Kg8 22.Qh5 Qe8 23.Qh7+ Kf8 24.Qh8+ Ng8 25.Nxe6+ Qxe6 >>>26.Rxe6 Nxd4 27.Bxd4 dxc4 >>> ² (0.65) Depth: 15/45 00:02:01 42241kN >>>20.Bxh7+ Kxh7 21.Ng5+ Kg8 22.Qh5 Qe8 23.Qh7+ Kf8 24.Qh8+ Ng8 25.Nxe6+ Qxe6 >>>26.Rxe6 Nxd4 27.Bxd4 dxc4 28.bxc4 >>> ± (1.00) Depth: 15/45 00:02:32 53632kN >>>20.Bxh7+ Kxh7 21.Ng5+ Kg8 22.Qh5 Qe8 23.Qh7+ Kf8 24.Qh8+ Ng8 25.Nxe6+ fxe6 >>>26.Rf3+ Qf7 27.Rxf7+ Kxf7 28.Qh5+ Kf8 29.a3 Bd6 30.Qg4 Re8 31.cxd5 Nf6 32.dxe6 >>>Nxg4 33.Rc5 >>> ± (1.15) Depth: 15/48 00:03:38 78706kN >>> >>>(Byrne, MyTown 31.05.2004) When I re-run test with cleared hash and position learning off. I get different solution times depending on the hash but all of them seem to get faster. I have noticed this before with Shredder , you only seem to get one crack at running a position before it learns the best move even with position learning off. All of my subsqequent re-run of the above positions are faster than above - varing the hash size does vary the solution time.
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