Discussion of anything and everything relating to chess playing software and machines.
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zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Wed Jul 28, 2010 3:47 pm
Probably I'm being dumb, but it's been a week and I'm still stumped.
Summary: I've just built Crafty-23.2 and Crafty-23.3 from source using the same Makefile and the same compiler. 23.3 is much, much slower than 23.2.
This is under Mac OS X 10.6.4 on a Nehalem Mac Pro.
Here's some evidence:
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.2] make darwin
make target=FreeBSD \
CC=gcc-mp-4.4 CXX=g++-mp-4.4 \
CFLAGS='-O3 -m64 -fomit-frame-pointer -fno-tree-pre' \
CXFLAGS='-O3 -m64 -fomit-frame-pointer -fno-tree-pre' \
LDFLAGS= \
LIBS='-lstdc++' \
opt=' -DCPUS=16 -DINLINE64 -DPOPCNT \
-DLOGDIR=\"./Logs\" -DBOOKDIR=\"./Books\" \
-DTBDIR=\"../TB\"' \
crafty-make
gcc-mp-4.4 -O3 -m64 -fomit-frame-pointer -fno-tree-pre -DCPUS=16 -DINLINE64 -DPOPCNT -DLOGDIR=\"./Logs\" -DBOOKDIR=\"./Books\" -DTBDIR=\"../TB\" -DFreeBSD -c crafty.c
g++-mp-4.4 -c -O3 -m64 -fomit-frame-pointer -fno-tree-pre -DCPUS=16 -DINLINE64 -DPOPCNT -DLOGDIR=\"./Logs\" -DBOOKDIR=\"./Books\" -DTBDIR=\"../TB\" -DFreeBSD egtb.cpp
gcc-mp-4.4 -o crafty-23.2 crafty.o egtb.o -lm -lstdc++
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.2] ./crafty-23.2
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.2 (8 cpus)
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
7-> 0.04 -0.45 1. Bc4+ Be6 2. Bxe6+ Rxe6 3. Qg4 Kf7
4. Bh4 Re2 5. Qc4+ Re6 (s=2)
8 0.06 -0.67 1. Bc4+ Be6 2. Be3 f5 3. Bxe6+ Rxe6
4. Qh5 Qf6 5. Rd5 Ne5 6. Nxe5 Rxe5
8 0.07 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5
8-> 0.07 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5 (s=2)
9 0.09 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.11 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10 0.13 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.18 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=6)
11 0.21 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
11-> 0.36 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
12 0.47 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=4)
12-> 1.11 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=8)
13 1.29 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=7)
13-> 2.15 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=6)
14 2.61 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 <HT> (s=5)
14-> 4.60 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 <HT> (s=5)
15 5.87 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6 (s=4)
15-> 10.05 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6 (s=5)
16 11.97 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 Rb8 8. Be4 Ne5 9. Qxd7 Bxd7 (s=4)
16-> 27.72 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 Rb8 8. Be4 Ne5 9. Qxd7 Bxd7 (s=7)
17 34.50 -0.59 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=6)
time=1:00 mat=-1 n=1340204462 fh=95% nps=22.1M
extensions=83.7M qchecks=84.4M reduced=104.7M pruned=594.3M
predicted=0 evals=140.4M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=257875 aborts=21186 data=94/1024 elap=1:00
terminating SMP processes.
White(1): Be3
time used: 1:00Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.3] make darwin
make target=FreeBSD \
CC=gcc-mp-4.4 CXX=g++-mp-4.4 \
CFLAGS='-O3 -m64 -fomit-frame-pointer -fno-tree-pre' \
CXFLAGS='-O3 -m64 -fomit-frame-pointer -fno-tree-pre' \
LDFLAGS= \
LIBS='-lstdc++' \
opt=' -DCPUS=16 -DINLINE64 -DPOPCNT \
-DLOGDIR=\"./Logs\" -DBOOKDIR=\"./Books\" \
-DTBDIR=\"../TB\"' \
crafty-make
gcc-mp-4.4 -O3 -m64 -fomit-frame-pointer -fno-tree-pre -DCPUS=16 -DINLINE64 -DPOPCNT -DLOGDIR=\"./Logs\" -DBOOKDIR=\"./Books\" -DTBDIR=\"../TB\" -DFreeBSD -c crafty.c
g++-mp-4.4 -c -O3 -m64 -fomit-frame-pointer -fno-tree-pre -DCPUS=16 -DINLINE64 -DPOPCNT -DLOGDIR=\"./Logs\" -DBOOKDIR=\"./Books\" -DTBDIR=\"../TB\" -DFreeBSD egtb.cpp
gcc-mp-4.4 -o crafty-23.3 crafty.o egtb.o -lm -lstdc++
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.3] ./crafty-23.3
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.3 (8 cpus)
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
8 0.05 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5 (s=4)
8-> 0.07 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5
9 0.08 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.10 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=2)
10 0.11 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.15 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=6)
11 0.21 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
11-> 0.26 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
12 0.34 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qc8 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
<HT>
12-> 0.49 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qc8 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
<HT> (s=5)
13 0.58 -0.70 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Kh8 5. Rhe1 Bb6 6. Be4 f5 7. Bc2
(s=4)
13-> 0.91 -0.70 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Kh8 5. Rhe1 Bb6 6. Be4 f5 7. Bc2
(s=5)
14 1.06 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=4)
14-> 1.60 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=7)
15 1.88 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
h4 Ne5 8. Qxd7 <HT> (s=6)
15-> 3.37 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
h4 Ne5 8. Qxd7 <HT> (s=8)
16 3.81 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=7)
16-> 6.97 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=10)
17 7.64 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=9)
17-> 14.98 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=11)
18 18.63 -0.68 1. Be3 Be6 2. Bg6 Re7 3. a3 Ba5 4.
Qa4 Kh8 5. Be4 Bb6 6. Bxc6 bxc6 7.
Qxc6 Rb8 8. Rhe1 Bf5 9. Nd4 Be4 (s=10)
18-> 28.74 -0.68 1. Be3 Be6 2. Bg6 Re7 3. a3 Ba5 4.
Qa4 Kh8 5. Be4 Bb6 6. Bxc6 bxc6 7.
Qxc6 Rb8 8. Rhe1 Bf5 9. Nd4 Be4 (s=6)
19 33.28 -0.65 1. Be3 Be6 2. Bg6 Re7 3. a3 Ba5 4.
Qa4 Kh8 5. Be4 Bb6 6. Bxc6 bxc6 7.
Qxc6 Rb8 8. Bxb6 Rxb6 9. Qa4 Qb8 10.
b3 (s=5)
19-> 49.23 -0.65 1. Be3 Be6 2. Bg6 Re7 3. a3 Ba5 4.
Qa4 Kh8 5. Be4 Bb6 6. Bxc6 bxc6 7.
Qxc6 Rb8 8. Bxb6 Rxb6 9. Qa4 Qb8 10.
b3 (s=5)
20 58.98 -0.66 1. Be3 Be6 2. Bg6 Re7 3. a3 Ba5 4.
Qa4 Kh8 5. Nh4 Bb6 6. Qf4 Bxe3+ 7.
fxe3 Ne5 8. Be4 c5 9. Nf5 Rd7 10. Rhf1
Qb6 (s=4)
time=1:01 mat=-1 n=511785715 fh=90% nps=8.3M
extensions=8.6M qchecks=25.7M reduced=58.3M pruned=189.9M
predicted=0 evals=125.6M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=99038 aborts=11179 data=55/1024 elap=1:01
terminating SMP processes.
White(1): Be3
time used: 1:01
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Wed Jul 28, 2010 4:12 pm
Should have included single thread data too. Using smpmt=1, 23.3 is still slower than 23.2, but not dramatically so:
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.2] ./crafty-23.2
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.2 (8 cpus)
White(1): smpmt=1
Warning-- xboard 'cores' option disabled
max threads set to 1.
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
7-> 0.06 -0.45 1. Bc4+ Be6 2. Bxe6+ Rxe6 3. Qg4 Kf7
4. Bh4 Re2 5. Qc4+ Re6
8 0.11 -0.67 1. Bc4+ Be6 2. Be3 f5 3. Bxe6+ Rxe6
4. Qh5 Qf6 5. Rd5 Ne5 6. Nxe5 Rxe5
8 0.14 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5
8-> 0.18 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5
9 0.23 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.33 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10 0.39 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.60 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
11 0.74 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
11-> 1.33 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
12 1.86 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
12-> 5.08 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
13 5.59 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
13-> 10.08 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
14 12.22 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
14-> 19.76 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
15 26.00 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6
15-> 51.01 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6
16 59.17 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 Rb8 8. Be4 Ne5 9. Qxd7 Bxd7
time=1:00 mat=-1 n=250315163 fh=95% nps=4.1M
extensions=13.8M qchecks=14.1M reduced=20.9M pruned=111.4M
predicted=0 evals=30.7M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=0 aborts=0 data=0/1024 elap=1:00
White(1): Be3
time used: 1:00
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.3] ./crafty-23.3
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.3 (8 cpus)
White(1): smpmt=1
Warning-- xboard 'cores' option disabled
max threads set to 1.
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
8-> 0.07 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5
9 0.07 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5 5. Bf7+ Kf8
9-> 0.11 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5 5. Bf7+ Kf8
10 0.15 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.22 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
11 0.26 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
11-> 0.37 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
12 0.50 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
12-> 0.81 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
13 0.92 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
13-> 1.56 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
14 1.83 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5
14-> 2.98 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5
15 3.44 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6
15-> 6.69 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6
16 7.40 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6
16-> 13.25 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6
17 14.44 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6
17-> 26.65 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6
18 33.94 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7
18-> 59.65 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7
time=1:00 mat=-1 n=229055049 fh=89% nps=3.8M
extensions=4.5M qchecks=13.0M reduced=25.2M pruned=88.9M
predicted=0 evals=50.6M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=0 aborts=0 data=0/1024 elap=1:00
White(1): Be3
time used: 1:00
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Fri Jul 30, 2010 10:25 pm
Perhaps Bob has some ideas? I'm really stumped.
bob
Posts: 20943Joined: Mon Feb 27, 2006 7:30 pmLocation: Birmingham, AL
Post by bob Fri Jul 30, 2010 11:13 pm
zullil wrote: Perhaps Bob has some ideas? I'm really stumped.
Here's my tests. First, 23.2 and 23.3 mt=1, your position, 30 secs:
time=30.12 mat=-1 n=108302664 fh=94% nps=3.6M
time=31.00 mat=-1 n=100567350 fh=88% nps=3.2M
ditto for mt=8:
time=30.95 mat=-1 n=681825282 fh=94% nps=22.0M
time=30.55 mat=-1 n=627401767 fh=87% nps=20.5M
That is not a Nehalem box, but it is a decent core-2 type machine with dual quad-cores. I can't imagine what would make the mt=8 run slower unless something else runs at the same time, or if you somehow have profiling or something turned on by accident...
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Fri Jul 30, 2010 11:30 pm
bob wrote: zullil wrote: Perhaps Bob has some ideas? I'm really stumped.
Here's my tests. First, 23.2 and 23.3 mt=1, your position, 30 secs:
time=30.12 mat=-1 n=108302664 fh=94% nps=3.6M
time=31.00 mat=-1 n=100567350 fh=88% nps=3.2M
ditto for mt=8:
time=30.95 mat=-1 n=681825282 fh=94% nps=22.0M
time=30.55 mat=-1 n=627401767 fh=87% nps=20.5M
That is not a Nehalem box, but it is a decent core-2 type machine with dual quad-cores. I can't imagine what would make the mt=8 run slower unless something else runs at the same time, or if you somehow have profiling or something turned on by accident...
Thanks for the reply. I'm still mystified. I checked that each binary was running on 8 cores without competition from other apps.
These were built from the .zip archives on your ftp server. Any possibility that there's some debug code or something in the Crafty-23.3 source?
bob
Posts: 20943Joined: Mon Feb 27, 2006 7:30 pmLocation: Birmingham, AL
Post by bob Fri Jul 30, 2010 11:40 pm
zullil wrote: bob wrote: zullil wrote: Perhaps Bob has some ideas? I'm really stumped.
Here's my tests. First, 23.2 and 23.3 mt=1, your position, 30 secs:
time=30.12 mat=-1 n=108302664 fh=94% nps=3.6M
time=31.00 mat=-1 n=100567350 fh=88% nps=3.2M
ditto for mt=8:
time=30.95 mat=-1 n=681825282 fh=94% nps=22.0M
time=30.55 mat=-1 n=627401767 fh=87% nps=20.5M
That is not a Nehalem box, but it is a decent core-2 type machine with dual quad-cores. I can't imagine what would make the mt=8 run slower unless something else runs at the same time, or if you somehow have profiling or something turned on by accident...
Thanks for the reply. I'm still mystified. I checked that each binary was running on 8 cores without competition from other apps.
These were built from the .zip archives on your ftp server. Any possibility that there's some debug code or something in the Crafty-23.3 source?
Looking at your one CPU tests, it does not look like it. There is a -DDEBUG option, but that typically drops NPS by 10x. And you would see it in the 1 cpu test as well.
Is this a real 8-core box or is it 4 cores with hyperthreading? It looks like 8 real cores from the 23.2 data, and looks like 4 real cores with 23.3. If this is a real 8-core box, just for fun I would turn hyperthreading off in the BIOS so that you won't run into odd process scheduling issues where there is more than one thread scheduled on a physical core...
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Sat Jul 31, 2010 12:19 am
bob wrote:
Looking at your one CPU tests, it does not look like it. There is a -DDEBUG option, but that typically drops NPS by 10x. And you would see it in the 1 cpu test as well.
This is an 8-core box, and I've checked again that 8 distinct cores are being utilized by each binary. I just did a comparison of 23.2 and 23.3 with smpmt=2, and the slowness of 23.3 is apparent even with just two threads (see below). I'm using the same Makefile, the same compiler and the same hardware for both versions. What's going on?
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.2] ./crafty-23.2
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.2 (8 cpus)
White(1): smpmt=2
Warning-- xboard 'cores' option disabled
max threads set to 2.
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
7-> 0.05 -0.45 1. Bc4+ Be6 2. Bxe6+ Rxe6 3. Qg4 Kf7
4. Bh4 Re2 5. Qc4+ Re6 (s=3)
8 0.09 -0.67 1. Bc4+ Be6 2. Be3 f5 3. Bxe6+ Rxe6
4. Qh5 Qf6 5. Rd5 Ne5 6. Nxe5 Rxe5
(s=2)
8 0.11 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5
8-> 0.13 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5 (s=2)
9 0.19 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.25 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10 0.28 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.41 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=4)
11 0.49 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
11-> 0.85 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
12 1.11 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=4)
12-> 2.93 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=8)
13 3.32 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=7)
13-> 5.50 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=6)
14 6.49 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=5)
14-> 11.35 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=5)
15 13.07 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6 (s=4)
15-> 25.37 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6 (s=6)
16 33.67 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 Rb8 8. Be4 Ne5 9. Qxd7 Bxd7 (s=5)
time=1:00 mat=-1 n=492374976 fh=95% nps=8.1M
extensions=31.1M qchecks=32.6M reduced=36.7M pruned=219.4M
predicted=0 evals=47.6M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=1393 aborts=136 data=7/1024 elap=1:00
terminating SMP processes.
White(1): Be3
time used: 1:00
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.3] ./crafty-23.3
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.3 (8 cpus)
White(1): smpmt=2
Warning-- xboard 'cores' option disabled
max threads set to 2.
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
8-> 0.07 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5
9 0.09 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.12 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
10 0.14 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=2)
10-> 0.18 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
11 0.22 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=2)
11-> 0.30 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
12 0.37 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=2)
12-> 0.60 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=5)
13 0.69 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=4)
13-> 1.17 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=8)
14 1.43 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=7)
14-> 2.31 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=6)
15 2.66 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=5)
15-> 5.10 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=12)
16 5.68 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=11)
16-> 10.57 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=11)
17 11.73 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=10)
17-> 20.88 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=10)
18 30.97 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7 (s=9)
18-> 46.38 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7 (s=2)
19 51.92 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Rb8 6. h4 Qd7 7. Bxb6
axb6 8. h5 Ne5 9. Qa7 Rf8 10. Be4 Nxf3
11. Bxf3
time=1:01 mat=-1 n=325469679 fh=90% nps=5.3M
extensions=6.1M qchecks=17.9M reduced=36.2M pruned=125.8M
predicted=0 evals=73.3M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=2076 aborts=254 data=8/1024 elap=1:01
terminating SMP processes.
White(1): Be3
time used: 1:01
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Sat Jul 31, 2010 12:53 am
Changing to gcc-4.2 has an interesting effect:
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/crafty-23.2] ./crafty-23.2
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.2 (8 cpus)
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
7-> 0.04 -0.45 1. Bc4+ Be6 2. Bxe6+ Rxe6 3. Qg4 Kf7
4. Bh4 Re2 5. Qc4+ Re6 (s=2)
8 0.07 -0.67 1. Bc4+ Be6 2. Be3 f5 3. Bxe6+ Rxe6
4. Qh5 Qf6 5. Rd5 Ne5 6. Nxe5 Rxe5
8 0.09 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5
8-> 0.09 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5 (s=2)
9 0.12 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 <HT>
9-> 0.15 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 <HT>
10 0.18 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.25 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=6)
11 0.29 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
11-> 0.49 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
12 0.66 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Be4 Bc4 5. a3 Ba5 6. b3 d5 7. bxc4
Rxe4 8. Rxd5 Rxh4 9. Rxd7 Rxc4 (s=4)
12-> 1.47 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Be4 Bc4 5. a3 Ba5 6. b3 d5 7. bxc4
Rxe4 8. Rxd5 Rxh4 9. Rxd7 Rxc4 (s=7)
13 1.69 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qd5+ Qe6 6. Qb5 Bxf3 7.
gxf3 Rb8 (s=6)
13-> 2.76 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qd5+ Qe6 6. Qb5 Bxf3 7.
gxf3 Rb8 (s=5)
14 3.33 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qd5+ Qe6 6. Qb5 Qc8 7. Rhg1
Kh8 8. Qd5 (s=4)
14-> 6.27 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qd5+ Qe6 6. Qb5 Qc8 7. Rhg1
Kh8 8. Qd5 (s=5)
15 7.16 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qb5 Qc8 6. h4 a6 7. Qd5+
Qe6 8. h5 Qxd5 9. Rxd5 (s=4)
15-> 14.68 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qb5 Qc8 6. h4 a6 7. Qd5+
Qe6 8. h5 Qxd5 9. Rxd5 (s=7)
16 19.99 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qb5 Qc8 6. h4 a6 7. Qd5+
Qe6 8. h5 Qxd5 9. Rxd5 (s=6)
16-> 42.98 -0.57 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qd7 4.
Qh5 Bg4 5. Qb5 Qc8 6. h4 a6 7. Qd5+
Qe6 8. h5 Qxd5 9. Rxd5 (s=5)
17 51.24 -0.58 1. Be3 Be6 2. Bg6 Re7 3. Kb1 Qf8 4.
c3 Ba5 5. Rhe1 Bf7 6. Qg4 Bxg6+ 7.
Qxg6 Qf7 8. Qf5 Qe6 9. Qxe6+ Rxe6 10.
Rd5 (s=4)
time=1:00 mat=-1 n=954260745 fh=95% nps=15.7M
extensions=57.4M qchecks=58.2M reduced=74.9M pruned=419.7M
predicted=0 evals=109.7M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=154273 aborts=15370 data=76/1024 elap=1:00
terminating SMP processes.
White(1): Be3
time used: 1:00
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.3] ./crafty-23.3
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.3 (8 cpus)
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
8 0.04 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5 (s=3)
8-> 0.05 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5
9 0.06 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.07 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=2)
10 0.08 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.11 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=6)
11 0.14 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
11-> 0.18 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
12 0.25 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
12-> 0.34 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=2)
13 0.41 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5
13-> 0.63 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=4)
14 0.71 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=3)
14-> 1.11 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=8)
15 1.26 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=7)
15-> 2.36 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=8)
16 2.60 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=7)
16-> 4.95 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=11)
17 5.40 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=10)
17-> 10.64 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=11)
18 13.88 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7 (s=10)
18-> 21.26 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7 (s=5)
19 23.91 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Rb8 6. h4 Qd7 7. Bxb6
axb6 8. h5 Ne5 9. Qa7 Rf8 10. Be4 Nxf3
11. Bxf3 (s=4)
19-> 41.54 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Rb8 6. h4 Qd7 7. Bxb6
axb6 8. h5 Ne5 9. Qa7 Rf8 10. Be4 Nxf3
11. Bxf3 (s=7)
20 45.87 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Rb8 6. h4 Qd7 7. Bxb6
axb6 8. h5 Ne5 9. Qa7 Rf8 10. Be4 Nxf3
11. Bxf3 (s=6)
time=1:01 mat=-1 n=800574854 fh=89% nps=13.1M
extensions=15.9M qchecks=46.1M reduced=87.0M pruned=304.7M
predicted=0 evals=180.9M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=160822 aborts=18070 data=56/1024 elap=1:01
terminating SMP processes.
White(1): Be3
time used: 1:01
bob
Posts: 20943Joined: Mon Feb 27, 2006 7:30 pmLocation: Birmingham, AL
Post by bob Sat Jul 31, 2010 3:55 am
zullil wrote: bob wrote:
Looking at your one CPU tests, it does not look like it. There is a -DDEBUG option, but that typically drops NPS by 10x. And you would see it in the 1 cpu test as well.
Strange indeed. Is it possible to set up a remote login at some point? I could at least look at things as it runs and perhaps get an idea. Last time I ran on a Nehalem box it ran like the blazes. It might just need some tuning. One thing is for sure, LMR is way more aggressive (just compare the depths on your two 8-thread searches, the one running 1/2 normal speed went 3 plies deeper). It might be that smpsn needs tuning. If you want to run a few tests, try "smpsn=2000", smpsn=4000, and even smpsn=8000. Run a test for 60 secs, 8 threads, and run the same position 4 times. Then change the smpsn value and repeat. You can fine-tune it even better but usually changing by the above will at least point you in the right area to try...
I'll run a couple of these tests on my 8-core box to see if it is also sensitive to ths more than I realize...
This is an 8-core box, and I've checked again that 8 distinct cores are being utilized by each binary. I just did a comparison of 23.2 and 23.3 with smpmt=2, and the slowness of 23.3 is apparent even with just two threads (see below). I'm using the same Makefile, the same compiler and the same hardware for both versions. What's going on?
Code: Select all
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.2] ./crafty-23.2
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.2 (8 cpus)
White(1): smpmt=2
Warning-- xboard 'cores' option disabled
max threads set to 2.
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
7-> 0.05 -0.45 1. Bc4+ Be6 2. Bxe6+ Rxe6 3. Qg4 Kf7
4. Bh4 Re2 5. Qc4+ Re6 (s=3)
8 0.09 -0.67 1. Bc4+ Be6 2. Be3 f5 3. Bxe6+ Rxe6
4. Qh5 Qf6 5. Rd5 Ne5 6. Nxe5 Rxe5
(s=2)
8 0.11 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5
8-> 0.13 -0.43 1. Be3 f5 2. c3 Ba5 3. Qh5 Qf6 4. Rhe1
Ne5 (s=2)
9 0.19 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.25 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10 0.28 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
10-> 0.41 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=4)
11 0.49 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
11-> 0.85 -0.53 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=5)
12 1.11 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=4)
12-> 2.93 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=8)
13 3.32 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=7)
13-> 5.50 -0.64 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 Bb6 5. a3 f5 6. Bd5 Bxd5 7. Rxd5
(s=6)
14 6.49 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=5)
14-> 11.35 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=5)
15 13.07 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6 (s=4)
15-> 25.37 -0.53 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 Bb6 (s=6)
16 33.67 -0.55 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 Rb8 8. Be4 Ne5 9. Qxd7 Bxd7 (s=5)
time=1:00 mat=-1 n=492374976 fh=95% nps=8.1M
extensions=31.1M qchecks=32.6M reduced=36.7M pruned=219.4M
predicted=0 evals=47.6M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=1393 aborts=136 data=7/1024 elap=1:00
terminating SMP processes.
White(1): Be3
time used: 1:00
LZsMacPro-OSX6: ~/Documents/Chess/Crafty/Crafty-23.3] ./crafty-23.3
unable to open book file [./Books/book.bin].
book is disabled
unable to open book file [./Books/books.bin].
Warning-- xboard 'cores' option disabled
max threads set to 8.
EGTB access enabled
using tbpath=../TB
5 piece tablebase files found
14108kb of RAM used for TB indices and decompression tables
EGTB cache memory = 256M bytes.
Warning-- xboard 'memory' option disabled
hash table memory = 2048M bytes.
Warning-- xboard 'memory' option disabled
pawn hash table memory = 128M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering disabled.
Audio output disabled
game/10 minutes primary time control
Crafty v23.3 (8 cpus)
White(1): smpmt=2
Warning-- xboard 'cores' option disabled
max threads set to 2.
White(1): setboard r2qr1k1/pppb2p1/2np1p1p/6B1/1b5Q/3B1N2/PPP2PPP/2KR3R w - - 0 1
White(1): st 60
search time set to 60.00.
White(1): display stats
display statistics at end of each search.
White(1): go
time limit 1:00 (+0.00) (1:00)
depth time score variation (1)
starting thread 1
8-> 0.07 -0.61 1. Be3 Ba5 2. Bg6 Re7 3. Qh5 Ne5 4.
Nxe5 Rxe5
9 0.09 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5
9-> 0.12 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
10 0.14 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=2)
10-> 0.18 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
11 0.22 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=2)
11-> 0.30 -0.63 1. Be3 Be6 2. Bg6 Re7 3. Be4 Ba5 4.
Qh5 f5 5. Bd5 Bxd5 6. Rxd5 (s=3)
12 0.37 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=2)
12-> 0.60 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=5)
13 0.69 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=4)
13-> 1.17 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Kb1 Qd7 5. Qh5 Bg4 6. Qd5+ Qe6 7. Rhe1
Qxd5 8. Rxd5 (s=8)
14 1.43 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=7)
14-> 2.31 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 a5 (s=6)
15 2.66 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=5)
15-> 5.10 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=12)
16 5.68 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=11)
16-> 10.57 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 bxc6 (s=11)
17 11.73 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=10)
17-> 20.88 -0.72 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Be4 f5 8. Bxc6 Qxc6 9. Qxc6 bxc6 (s=10)
18 30.97 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7 (s=9)
18-> 46.38 -0.64 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Bxe3+ 6. Rxe3 Qd7 7.
Qb5 a5 8. Rde1 Rd8 9. Qxb7 Bxa2 10.
Rxe7 Nxe7 (s=2)
19 51.92 -0.69 1. Be3 Be6 2. Bg6 Re7 3. c3 Ba5 4.
Qa4 Bb6 5. Rhe1 Rb8 6. h4 Qd7 7. Bxb6
axb6 8. h5 Ne5 9. Qa7 Rf8 10. Be4 Nxf3
11. Bxf3
time=1:01 mat=-1 n=325469679 fh=90% nps=5.3M
extensions=6.1M qchecks=17.9M reduced=36.2M pruned=125.8M
predicted=0 evals=73.3M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=2076 aborts=254 data=8/1024 elap=1:01
terminating SMP processes.
White(1): Be3
time used: 1:01
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Sat Jul 31, 2010 5:50 pm
bob wrote:
Strange indeed. Is it possible to set up a remote login at some point? I could at least look at things as it runs and perhaps get an idea. Last time I ran on a Nehalem box it ran like the blazes. It might just need some tuning. One thing is for sure, LMR is way more aggressive (just compare the depths on your two 8-thread searches, the one running 1/2 normal speed went 3 plies deeper). It might be that smpsn needs tuning. If you want to run a few tests, try "smpsn=2000", smpsn=4000, and even smpsn=8000. Run a test for 60 secs, 8 threads, and run the same position 4 times. Then change the smpsn value and repeat. You can fine-tune it even better but usually changing by the above will at least point you in the right area to try...
Varying the smpsn parameter had essentially no effect.
I'm coming to the conclusion that this is a gcc-related issue.
Have you tried compiling with gcc? I know you use icc.
Here are summary results for 23.2 and 23.3 respectively, each compiled with three versions of gcc.
Code: Select all
gcc version 4.2.1 (Apple Inc. build 5664)
Crafty v23.2 (8 cpus)
time=1:02 mat=-1 n=820623467 fh=94% nps=13.2M
gcc version 4.4.4 (GCC)
Crafty v23.2 (8 cpus)
time=1:00 mat=-1 n=1244905755 fh=94% nps=20.7M
gcc version 4.5.0 (GCC)
Crafty v23.2 (8 cpus)
time=1:00 mat=-1 n=611061880 fh=94% nps=10.1M
gcc version 4.2.1 (Apple Inc. build 5664)
Crafty v23.3 (8 cpus)
time=1:01 mat=-1 n=823531770 fh=87% nps=13.5M
gcc version 4.4.4 (GCC)
Crafty v23.3 (8 cpus)
time=1:00 mat=-1 n=484844694 fh=86% nps=8.1M
gcc version 4.5.0 (GCC)
Crafty v23.3 (8 cpus)
time=1:02 mat=-1 n=531897007 fh=88% nps=8.6M
Here's the relevant portion of the Makefile. I changed the CC and CXX flags as needed.
Code: Select all
darwin:
$(MAKE) target=FreeBSD \
CC=gcc-mp-4.5 CXX=g++-mp-4.5 \
CFLAGS='-Wall -Wextra -pipe -O3' \
CXFLAGS='-Wall -pipe -O3' \
LDFLAGS=$(LDFLAGS) \
LIBS='-lstdc++' \
opt='$(opt) -DCPUS=8' \
crafty-make
Some recent change in the Crafty source really affected gcc-4.4.
