Author: Robert Hyatt
Date: 11:38:14 10/09/02
Go up one level in this thread
On October 09, 2002 at 07:10:26, Shaun Brewer wrote: >I have just upgraded on of my machines from a TBird 850 to XP2000+ CPU change >only. > >I am happy with the result inexpensive and effective 2x performance for chess. > >I have done some comparisons with 2 friends machines they both have XP2000+ >processors but with DDR ram I wanted to see what benefit this gave them. The DDR ram simply has a longer overall latency. SDRAM is faster for scattered random access reads, which is what Crafty does, particularly for hashing. windows XP vs 2000 won't make one scintilla of difference to crafty's search speed... > >My machine KT133A (ABIT KT7A) chipset SDRAM cas 2 > >Theirs: > >KT333 (ASUS board) PC2100 DDR > >KT400 (Gigabyte board) PC2700 DDR > >I took the first nunn position and let crafty think overnight 196mb hash 48mb >hashp - my results were better!!! I was expecting a significant boost for DDR >and the newer motherboards. > >Questions. > >Does anyone know if the following are the reasons? > >They are running XP rather than Win2000. > >I have the BIOS settings set fairly aggressively where as they are running >defaults. > >I am planning another upgrade and if there is 'minimal' difference for chess >between DDR and SDRAM I can save a fortune/avoid wasting a fortune as I have >been looking at expensive and fast DDR memory in a KT400 motherboard. > >Thanks > >Shaun > >The test: > >wcrafty-18.15.exe from Bob's ftp site > >crafty.rc > >hash 256M >hashp 64M >read a.pgn >analyze > >a.pgn > >[White ""] >[Black ""] >[WhiteElo "0"] >[BlackElo "0"] >[Result "*"] >[Date "????.??.??"] >[Event ""] >[Site ""] >[Round "?"] >[ECO "B33"] >[Annotator ""] >[Source ""] >[Remark "Sicilian defence Sveshnikov"] > >1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 Nf6 6.N1c3 d6 7.Bf4 >e5 8.Bg5 a6 9.Na3 b5 10.Bxf6 gxf6 11.Nd5 f5 12.c3 Bg7 13.exf5 >Bxf5 * > > >Here are the results: > >My machine KT133A 512mb SDRAM cas 2 > >hash table memory = 192M bytes. >pawn hash table memory = 48M bytes. > clearing hash tables > time surplus 0.00 time limit 30.00 (3:30) > nss depth time score variation (1) > 6-> 0.16 0.22 14. Bd3 Be6 15. Be4 Bd7 16. c4 Nd4 > 7 0.25 0.31 14. Bd3 Be6 15. Be4 Rc8 16. O-O O-O > 17. Qf3 > 7-> 0.35 0.31 14. Bd3 Be6 15. Be4 Rc8 16. O-O O-O > 17. Qf3 > 8 0.82 0.16 14. Bd3 e4 15. Qh5 Bg6 16. Qe2 f5 17. > O-O O-O > 8 1.24 0.30 14. Qf3 Be6 15. Bd3 O-O 16. O-O Rc8 > 17. Bf5 Qg5 > 8-> 1.49 0.30 14. Qf3 Be6 15. Bd3 O-O 16. O-O Rc8 > 17. Bf5 Qg5 > 9 2.80 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. Bc2 Ne7 > 17. Qh5 f5 18. O-O-O Nxd5 19. Rxd5 > 9-> 4.19 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. Bc2 Ne7 > 17. Qh5 f5 18. O-O-O Nxd5 19. Rxd5 > 10 7.17 0.21 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Bd3 Kg7 18. O-O Rg8 19. Qe4 > h6 > 10-> 16.94 0.21 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Bd3 Kg7 18. O-O Rg8 19. Qe4 > h6 > 11 23.05 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. O-O Ne7 > 17. Nxe7+ Qxe7 18. Be4 Rad8 19. Qh5 > f5 20. Bd5+ Be6 > 11-> 34.52 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. O-O Ne7 > 17. Nxe7+ Qxe7 18. Be4 Rad8 19. Qh5 > f5 20. Bd5+ Be6 > 12 48.01 0.17 14. Qf3 Bd7 15. Bd3 O-O 16. O-O f5 > 17. Bc2 e4 18. Qh5 Be8 19. Qh3 Bg6 > 12-> 1:56 0.17 14. Qf3 Bd7 15. Bd3 O-O 16. O-O f5 > 17. Bc2 e4 18. Qh5 Be8 19. Qh3 Bg6 > 13 3:03 0.18 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Ke7 17. Bd3 Qd7 18. Qe4 d5 19. Qb4+ > Qd6 20. Qxd6+ Kxd6 21. Rd1 Bg4 22. > f3 Bd7 > 13-> 4:07 0.18 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Ke7 17. Bd3 Qd7 18. Qe4 d5 19. Qb4+ > Qd6 20. Qxd6+ Kxd6 21. Rd1 Bg4 22. > f3 Bd7 > 14 6:12 0.13 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Be2 d5 18. O-O Be7 19. Nc2 > Qc8 20. Qxc8+ Rxc8 21. a4 d4 22. axb5 > axb5 23. Rfc1 > 14 21:18 0.17 14. Nc2 O-O 15. a4 Ne7 16. Bd3 Bxd3 > 17. Qxd3 Nxd5 18. Qxd5 bxa4 19. Rxa4 > Qd7 20. Rh4 Qb5 21. Nb4 Qc5 > 14-> 25:22 0.17 14. Nc2 O-O 15. a4 Ne7 16. Bd3 Bxd3 > 17. Qxd3 Nxd5 18. Qxd5 bxa4 19. Rxa4 > Qd7 20. Rh4 Qb5 21. Nb4 Qc5 > 15 43:49 0.15 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Bc2 Rc8 18. Qh5 e4 19. O-O Ne7 > 20. Rad1 <HT> > 15-> 59:18 0.15 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Bc2 Rc8 18. Qh5 e4 19. O-O Ne7 > 20. Rad1 <HT> > 16 139:35 0.37 14. Nc2 O-O 15. Nce3 Bd7 16. Qc2 Ne7 > 17. Nxe7+ Qxe7 18. Bd3 h6 19. O-O-O > Be6 20. Nf5 Bxf5 21. Bxf5 b4 22. c4 > b3 23. Qxb3 > 16-> 155:58 0.37 14. Nc2 O-O 15. Nce3 Bd7 16. Qc2 Ne7 > 17. Nxe7+ Qxe7 18. Bd3 h6 19. O-O-O > Be6 20. Nf5 Bxf5 21. Bxf5 b4 22. c4 > b3 23. Qxb3 > 17 246:38 0.28 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Qh5 e4 18. Bc2 Ne7 19. Bb3 Nxd5 > <HT> > 17-> 323:00 0.28 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Qh5 e4 18. Bc2 Ne7 19. Bb3 Nxd5 > <HT> >White(14): quit >execution complete. > >KT400 512mb PC2700 cas 2.5 > >hash table memory = 192M bytes. >pawn hash table memory = 48M bytes. > clearing hash tables > time surplus 0.00 time limit 30.00 (3:30) > nss depth time score variation (1) > 6-> 0.17 0.22 14. Bd3 Be6 15. Be4 Bd7 16. c4 Nd4 > 7 0.28 0.31 14. Bd3 Be6 15. Be4 Rc8 16. O-O O-O > 17. Qf3 > 7-> 0.39 0.31 14. Bd3 Be6 15. Be4 Rc8 16. O-O O-O > 17. Qf3 > 8 0.86 0.16 14. Bd3 e4 15. Qh5 Bg6 16. Qe2 f5 17. > O-O O-O > 8 1.26 0.30 14. Qf3 Be6 15. Bd3 O-O 16. O-O Rc8 > 17. Bf5 Qg5 > 8-> 1.51 0.30 14. Qf3 Be6 15. Bd3 O-O 16. O-O Rc8 > 17. Bf5 Qg5 > 9 2.86 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. Bc2 Ne7 > 17. Qh5 f5 18. O-O-O Nxd5 19. Rxd5 > 9-> 4.36 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. Bc2 Ne7 > 17. Qh5 f5 18. O-O-O Nxd5 19. Rxd5 > 10 7.43 0.21 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Bd3 Kg7 18. O-O Rg8 19. Qe4 > h6 > 10-> 18.23 0.21 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Bd3 Kg7 18. O-O Rg8 19. Qe4 > h6 > 11 24.50 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. O-O Ne7 > 17. Nxe7+ Qxe7 18. Be4 Rad8 19. Qh5 > f5 20. Bd5+ Be6 > 11-> 36.22 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. O-O Ne7 > 17. Nxe7+ Qxe7 18. Be4 Rad8 19. Qh5 > f5 20. Bd5+ Be6 > 12 49.98 0.17 14. Qf3 Bd7 15. Bd3 O-O 16. O-O f5 > 17. Bc2 e4 18. Qh5 Be8 19. Qh3 Bg6 > 12-> 1:59 0.17 14. Qf3 Bd7 15. Bd3 O-O 16. O-O f5 > 17. Bc2 e4 18. Qh5 Be8 19. Qh3 Bg6 > 13 3:08 0.18 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Ke7 17. Bd3 Qd7 18. Qe4 d5 19. Qb4+ > Qd6 20. Qxd6+ Kxd6 21. Rd1 Bg4 22. > f3 Bd7 > 13-> 4:13 0.18 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Ke7 17. Bd3 Qd7 18. Qe4 d5 19. Qb4+ > Qd6 20. Qxd6+ Kxd6 21. Rd1 Bg4 22. > f3 Bd7 > 14 6:20 0.13 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Be2 d5 18. O-O Be7 19. Nc2 > Qc8 20. Qxc8+ Rxc8 21. a4 d4 22. axb5 > axb5 23. Rfc1 > 14 21:40 0.17 14. Nc2 O-O 15. a4 Ne7 16. Bd3 Bxd3 > 17. Qxd3 Nxd5 18. Qxd5 bxa4 19. Rxa4 > Qd7 20. Rh4 Qb5 21. Nb4 Qc5 > 14-> 26:05 0.17 14. Nc2 O-O 15. a4 Ne7 16. Bd3 Bxd3 > 17. Qxd3 Nxd5 18. Qxd5 bxa4 19. Rxa4 > Qd7 20. Rh4 Qb5 21. Nb4 Qc5 > 15 44:58 0.15 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Bc2 Rc8 18. Qh5 e4 19. O-O Ne7 > 20. Rad1 <HT> > 15-> 60:42 0.15 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Bc2 Rc8 18. Qh5 e4 19. O-O Ne7 > 20. Rad1 <HT> > 16 142:09 0.37 14. Nc2 O-O 15. Nce3 Bd7 16. Qc2 Ne7 > 17. Nxe7+ Qxe7 18. Bd3 h6 19. O-O-O > Be6 20. Nf5 Bxf5 21. Bxf5 b4 22. c4 > b3 23. Qxb3 > 16-> 158:47 0.37 14. Nc2 O-O 15. Nce3 Bd7 16. Qc2 Ne7 > 17. Nxe7+ Qxe7 18. Bd3 h6 19. O-O-O > Be6 20. Nf5 Bxf5 21. Bxf5 b4 22. c4 > b3 23. Qxb3 > 17 250:48 0.28 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Qh5 e4 18. Bc2 Ne7 19. Bb3 Nxd5 > <HT> > 17-> 328:20 0.28 14. Nc2 O-O 15. Nce3 Be6 16. Bd3 f5 > 17. Qh5 e4 18. Bc2 Ne7 19. Bb3 Nxd5 > <HT> >White(14): quit >execution complete. > >KT333 1GB PC2100 cas ? > >hash table memory = 192M bytes. >pawn hash table memory = 48M bytes. > clearing hash tables > time surplus 0.00 time limit 30.00 (3:30) > nss depth time score variation (1) > 6-> 1.66 0.22 14. Bd3 Be6 15. Be4 Bd7 16. c4 Nd4 > 7 1.75 0.31 14. Bd3 Be6 15. Be4 Rc8 16. O-O O-O > 17. Qf3 > 7-> 1.86 0.31 14. Bd3 Be6 15. Be4 Rc8 16. O-O O-O > 17. Qf3 > 8 2.98 0.16 14. Bd3 e4 15. Qh5 Bg6 16. Qe2 f5 17. > O-O O-O > 8 3.38 0.30 14. Qf3 Be6 15. Bd3 O-O 16. O-O Rc8 > 17. Bf5 Qg5 > 8-> 3.69 0.30 14. Qf3 Be6 15. Bd3 O-O 16. O-O Rc8 > 17. Bf5 Qg5 > 9 5.04 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. Bc2 Ne7 > 17. Qh5 f5 18. O-O-O Nxd5 19. Rxd5 > 9-> 6.50 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. Bc2 Ne7 > 17. Qh5 f5 18. O-O-O Nxd5 19. Rxd5 > 10 9.61 0.21 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Bd3 Kg7 18. O-O Rg8 19. Qe4 > h6 > 10-> 19.81 0.21 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Kf8 17. Bd3 Kg7 18. O-O Rg8 19. Qe4 > h6 > 11 26.14 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. O-O Ne7 > 17. Nxe7+ Qxe7 18. Be4 Rad8 19. Qh5 > f5 20. Bd5+ Be6 > 11-> 38.08 0.19 14. Qf3 Bd7 15. Bd3 O-O 16. O-O Ne7 > 17. Nxe7+ Qxe7 18. Be4 Rad8 19. Qh5 > f5 20. Bd5+ Be6 > 12 52.17 0.17 14. Qf3 Bd7 15. Bd3 O-O 16. O-O f5 > 17. Bc2 e4 18. Qh5 Be8 19. Qh3 Bg6 > 12-> 2:09 0.17 14. Qf3 Bd7 15. Bd3 O-O 16. O-O f5 > 17. Bc2 e4 18. Qh5 Be8 19. Qh3 Bg6 > 13 3:24 0.18 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Ke7 17. Bd3 Qd7 18. Qe4 d5 19. Qb4+ > Qd6 20. Qxd6+ Kxd6 21. Rd1 Bg4 22. > f3 Bd7 > 13-> 4:31 0.18 14. Qf3 Be6 15. Nf6+ Bxf6 16. Qxc6+ > Ke7 17. Bd3 Qd7 18. Qe4 d5 19. Qb4+ > Qd6 20. Qxd6+ Kxd6 21. Rd1 Bg4 22. > f3 Bd7
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