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Subject: Re: OT -> if you had the choice...

Author: Robert Hyatt

Date: 15:17:03 11/05/03

Go up one level in this thread


On November 05, 2003 at 16:41:51, Eugene Nalimov wrote:

>On November 05, 2003 at 09:54:13, Robert Hyatt wrote:
>
>>On November 05, 2003 at 05:22:16, Ed Schröder wrote:
>>
>>>If you the choice between:
>>>
>>>1) AMD Opteron 244, 1.8 Ghz, S-940 Box
>>>
>>>and:
>>>
>>>2) AMD MP 2600+, 266Mhz
>>>
>>>then what would be the best choice regarding speed.
>>>
>>>I wonder...
>>>
>>>Ed
>>
>>for me, I'd take the opteron.
>>
>>Crafty gets about 2M nps on a 1.8ghz opteron...  single processor.
>
>Not exactly. Following are 2 log files from (new version of) Crafty running on
>1.8GHz quad Opteron system. Run time vary from run to run, but those are typical
>ones
>
>1 CPU:  1,762knps
>4 CPUs: 6,856knps

OK... I had done the calculation wrong.  I thought that 6.8M for 4 was
basically 3.2X faster than 1, due to the NUMA scaling issues.  It looks
from the above that it is now scaling almost 4:1 which is great.  :)

Now if my dual xeon would just scale 2.0  :)




>
>I believe right now you can buy better Opteron system -- 2.2GHz (vs. 1.8GHz I
>have), and 400MHz memory (vs. 266MHz one I have).
>
>Thanks,
>Eugene
>
>----------------------------------------------------------------------
>
>Crafty v19.5 (1 cpus)
>
>White(1): hashp 1m
>pawn hash table memory =  768K bytes.
>White(1): hashp 8m
>pawn hash table memory =    6M bytes.
>White(1): bench
>Running benchmark. . .
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   |   | *R|   | *K|   |   |
>       +---+---+---+---+---+---+---+---+
>    7  |   |   |   |   | *N| *P| *P|   |
>       +---+---+---+---+---+---+---+---+
>    6  |   | *P| *P| *R|   |   |   | *P|
>       +---+---+---+---+---+---+---+---+
>    5  | *P|   |   |   |   |   |   | P |
>       +---+---+---+---+---+---+---+---+
>    4  | P |   |   | P | P | P | P |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   | N | R |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  |   |   |   |   |   | K |   |   |
>       +---+---+---+---+---+---+---+---+
>    1  |   |   | R |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>end-game phase
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                9     0.15   0.17   e5 Rd5 g5 hxg5 fxg5 b5 h6 bxa4 h7 Ng6
>                                    Na1 Rxd4 Rxc6
>                9     0.87   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
>                                    cxb5 Rc7
>                9->   0.87   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
>                                    cxb5 Rc7
>               10     1.40   0.22   R3c2 Ke8 e5 Rd5 g5 b5 gxh6 gxh6 Ra1
>                                    b4 Rg1
>               10     2.15   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>               10->   2.15   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>               11     2.42   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>               11->   2.53   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>              time=2.55  cpu=99%  mat=0  n=4214380  fh=89%  nps=1652k
>              ext-> chk=37528 cap=11825 pp=6530 1rep=1524 mate=302
>              predicted=0  nodes=4214380  evals=2199854
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 29%(raw) 27%(depth)  97%(sat)  96%(pawn)
>              hashing-> 0%(exact)  19%(lower)  0%(upper)
>              SMP->  split=0  stop=0  data=0/64  cpu=2.53  elap=2.55
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R| *N| *B| *Q| *K| *B|   | *R|
>       +---+---+---+---+---+---+---+---+
>    7  | *P|   |   |   | *P| *P| *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  |   | *P|   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   | *P| *P| P |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  |   |   |   | N |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   | P |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P | P | P |   | Q | P | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   | B |   | K | B |   | R |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                6->   0.07   0.73   e6 a6 Qh5 g6 exf7+ Kxf7 Qe5 Bg7
>                7     0.12   0.69   e6 a6 Qh5 g6 exf7+ Kxf7 Qe5 Bg7 Qf4+
>                                    Bf6
>                7->   0.12   0.69   e6 a6 Qh5 g6 exf7+ Kxf7 Qe5 Bg7 Qf4+
>                                    Bf6
>                8     0.31   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
>                                    Ne5 Qf4
>                8->   0.39   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
>                                    Ne5 Qf4
>                9     1.06   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
>                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
>                9->   1.21   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
>                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
>               10     3.42   0.75   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 e6 Be2
>                                    Qf6 Bf4 g5 Bc7 Qxf3 Bxf3
>               10->   4.10   0.75   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 e6 Be2
>                                    Qf6 Bf4 g5 Bc7 Qxf3 Bxf3
>               11     8.89   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
>                                    e5 Qe3 Kg8 Kb1
>               11->  10.81   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
>                                    e5 Qe3 Kg8 Kb1
>              time=10.82  cpu=99%  mat=0  n=19318652  fh=93%  nps=1785k
>              ext-> chk=859225 cap=51584 pp=22437 1rep=61757 mate=1132
>              predicted=0  nodes=19318652  evals=2713366
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 21%(raw) 19%(depth)  99%(sat)  97%(pawn)
>              hashing-> 0%(exact)  15%(lower)  1%(upper)
>              SMP->  split=0  stop=0  data=0/64  cpu=10.81  elap=10.82
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   |   |   | *B|   |   |   |
>       +---+---+---+---+---+---+---+---+
>    7  | *P|   |   |   | *K| *P|   |   |
>       +---+---+---+---+---+---+---+---+
>    6  |   |   |   |   |   |   | *P|   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   |   | *P| P |   |   | *P|
>       +---+---+---+---+---+---+---+---+
>    4  |   |   | *P| P |   | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   |   |   | K |   | P |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P |   |   |   | N |   |   | P |
>       +---+---+---+---+---+---+---+---+
>    1  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>end-game phase
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                9     0.08   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
>                                    g4
>                9->   0.08   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
>                                    g4
>               10     0.16   0.52   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 Ke6 Kd2
>                                    Bb5
>               10->   0.19   0.52   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 Ke6 Kd2
>                                    Bb5
>               11     0.39   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
>                                    Kc3
>               11->   0.44   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
>                                    Kc3
>               12     0.89   0.63   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 a4 Kd2
>                                    a3 Kc3 Ke6
>               12->   1.07   0.63   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 a4 Kd2
>                                    a3 Kc3 Ke6
>               13     2.75   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
>                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
>               13->   3.16   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
>                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
>               14     7.00   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
>                                    Nxd5+ Kd8 Nf6 Bg6 d5
>               14->   9.05   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
>                                    Nxd5+ Kd8 Nf6 Bg6 d5
>              time=9.05  cpu=100%  mat=0  n=18270314  fh=90%  nps=2018k
>              ext-> chk=593001 cap=66207 pp=119154 1rep=12311 mate=279
>              predicted=0  nodes=18270314  evals=7340957
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 33%(raw) 32%(depth)  99%(sat)  95%(pawn)
>              hashing-> 0%(exact)  27%(lower)  2%(upper)
>              SMP->  split=0  stop=0  data=0/64  cpu=9.05  elap=9.05
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R|   |   |   | *R|   | *K|   |
>       +---+---+---+---+---+---+---+---+
>    7  | *P| *P| *Q| *B|   | *P| *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   |   |   | *P|   | N | Q |
>       +---+---+---+---+---+---+---+---+
>    4  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   | P |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P | P |   |   |   | P | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   |   | R |   | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                7     0.09   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
>                7->   0.11   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
>                8     0.27   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
>                                    Qxe4
>                8->   0.31   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
>                                    Qxe4
>                9     0.55   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
>                                    b3
>                9->   0.66   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
>                                    b3
>               10     2.45   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
>                                    Rxd8 Rxd8
>               10->   2.83   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
>                                    Rxd8 Rxd8
>               11     6.23   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
>                                    Rxd8 Rxd8 b3
>               11->   7.98   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
>                                    Rxd8 Rxd8 b3
>              time=7.98  cpu=100%  mat=0  n=16081237  fh=91%  nps=2015k
>              ext-> chk=341966 cap=49424 pp=626 1rep=48769 mate=5694
>              predicted=0  nodes=16081237  evals=3312913
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 21%(raw) 20%(depth)  99%(sat)  98%(pawn)
>              hashing-> 0%(exact)  16%(lower)  0%(upper)
>              SMP->  split=0  stop=0  data=0/64  cpu=7.98  elap=7.98
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   | *R|   |   | *R| *K|   |
>       +---+---+---+---+---+---+---+---+
>    7  |   | *B| *Q| *N| *B| *P| *P|   |
>       +---+---+---+---+---+---+---+---+
>    6  |   | *P|   | *P| *P| *N|   | *P|
>       +---+---+---+---+---+---+---+---+
>    5  | *P| P |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  | N |   | P |   | P |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  | P |   |   | B |   | N |   | P |
>       +---+---+---+---+---+---+---+---+
>    2  |   | B |   |   | Q | P | P |   |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   | R |   |   | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                6     0.09     ++   Bxe4!!
>                6     0.11  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7
>                6->   0.11  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7
>                7     0.14  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7
>                7->   0.16  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7
>                8     0.22  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rc5
>                8->   0.27  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rc5
>                9     0.52  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bc3 a4
>                9->   0.58  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bc3 a4
>               10     0.89  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rc7 Bd4 Nfd5
>               10->   1.14  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rc7 Bd4 Nfd5
>               11     2.14  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
>               11->   2.56  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
>               12     5.02  -0.27   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rcc8 Bd4 Nfd5 Rac1 Rfd8 Rxc8 Rxc8
>               12->  20.16  -0.27   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rcc8 Bd4 Nfd5 Rac1 Rfd8 Rxc8 Rxc8
>              time=20.16  cpu=99%  mat=0  n=31720524  fh=92%  nps=1573k
>              ext-> chk=297260 cap=95730 pp=12236 1rep=17137 mate=568
>              predicted=0  nodes=31720524  evals=10526885
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 21%(raw) 20%(depth)  99%(sat)  99%(pawn)
>              hashing-> 0%(exact)  19%(lower)  0%(upper)
>              SMP->  split=0  stop=0  data=0/64  cpu=20.15  elap=20.16
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R|   | *B| *Q| *K|   |   | *R|
>       +---+---+---+---+---+---+---+---+
>    7  | *P| *P|   |   | *B| *P| *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  |   |   | *P|   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   |   | *P| P |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  | P |   |   | Q |   | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   | N |   | B |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  |   | P | P |   |   |   | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   |   |   | R | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                7     0.08  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
>                7->   0.08  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
>                8     0.24  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Bg4 f5
>                8->   0.25  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Bg4 f5
>                9     0.85  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
>                                    Qxd3 Qxd3 Bxd3
>                9->   0.92  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
>                                    Qxd3 Qxd3 Bxd3
>               10     1.75  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
>                                    <HT>
>               10->   2.02  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
>                                    <HT>
>               11     6.16  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
>                                    Bc5 Bh4
>               11->   6.85  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
>                                    Bc5 Bh4
>              time=6.86  cpu=99%  mat=0  n=10804330  fh=90%  nps=1574k
>              ext-> chk=101751 cap=33004 pp=16326 1rep=6026 mate=11
>              predicted=0  nodes=10804330  evals=3361950
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 21%(raw) 19%(depth)  99%(sat)  97%(pawn)
>              hashing-> 0%(exact)  16%(lower)  0%(upper)
>              SMP->  split=0  stop=0  data=0/64  cpu=6.84  elap=6.86
>Total nodes: 100409437
>Raw nodes per second: 1761569
>Total elapsed time: 57
>SMP time-to-ply measurement: 11.228070
>White(1): quit
>
>----------------------------------------------------------------------
>
>
>Crafty v19.5 (1 cpus)
>
>White(1): mt 4
>max threads set to 4
>White(1): hashp 1m
>pawn hash table memory =  768K bytes.
>White(1): hashp 8m
>pawn hash table memory =    6M bytes.
>White(1): bench
>Running benchmark. . .
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   |   | *R|   | *K|   |   |
>       +---+---+---+---+---+---+---+---+
>    7  |   |   |   |   | *N| *P| *P|   |
>       +---+---+---+---+---+---+---+---+
>    6  |   | *P| *P| *R|   |   |   | *P|
>       +---+---+---+---+---+---+---+---+
>    5  | *P|   |   |   |   |   |   | P |
>       +---+---+---+---+---+---+---+---+
>    4  | P |   |   | P | P | P | P |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   | N | R |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  |   |   |   |   |   | K |   |   |
>       +---+---+---+---+---+---+---+---+
>    1  |   |   | R |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>end-game phase
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>starting thread 1
>starting thread 2
>starting thread 3
>                9     0.08   0.17   e5 Rd5 g5 hxg5 fxg5 b5 h6 bxa4 h7 Ng6
>                                    Na1 Rxd4 Rxc6
>                9     0.33   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
>                                    cxb5 Rc7
>                9->   0.33   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
>                                    cxb5 Rc7
>               10     0.48   0.22   R3c2 Ke8 e5 Rd5 g5 b5 gxh6 gxh6 Ra1
>                                    b4 Rg1
>               10     0.67   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>               10->   0.67   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4 (s=2)
>               11     0.75   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>               11->   0.78   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
>                                    Nxc3 exd7 Nxa4
>              time=0.78  cpu=373%  mat=0  n=4699964  fh=89%  nps=6025k
>              ext-> chk=43666 cap=13173 pp=7237 1rep=1498 mate=269
>              predicted=0  nodes=4699964  evals=2448622
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 28%(raw) 26%(depth)  98%(sat)  97%(pawn)
>              hashing-> 0%(exact)  19%(lower)  0%(upper)
>              SMP->  split=679  stop=76  data=11/64  cpu=2.91  elap=0.78
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R| *N| *B| *Q| *K| *B|   | *R|
>       +---+---+---+---+---+---+---+---+
>    7  | *P|   |   |   | *P| *P| *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  |   | *P|   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   | *P| *P| P |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  |   |   |   | N |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   | P |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P | P | P |   | Q | P | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   | B |   | K | B |   | R |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                6     0.01   0.69   e6 a6 exf7+ Kxf7 Qh5+ g6 Qe5 Bg7 Qf4+
>                                    Bf6
>                6->   0.01   0.69   e6 a6 exf7+ Kxf7 Qh5+ g6 Qe5 Bg7 Qf4+
>                                    Bf6
>                7     0.03   0.58   e6 a6 exf7+ Kxf7 Qh5+ g6 Qf3+ Kg7 Nb3
>                                    e5 Bd3
>                7->   0.04   0.58   e6 a6 exf7+ Kxf7 Qh5+ g6 Qf3+ Kg7 Nb3
>                                    e5 Bd3
>                8     0.11   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
>                                    Ne5 Qf4
>                8->   0.14   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
>                                    Ne5 Qf4
>                9     0.36   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
>                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
>                9->   0.45   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
>                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
>               10     1.18   0.74   e6 a6 exf7+ Kxf7 Nf3 Nc6 Ng5+ Kg8 Qh5
>                                    g6 Qf3 Ne5 Qf4
>               10->   1.48   0.74   e6 a6 exf7+ Kxf7 Nf3 Nc6 Ng5+ Kg8 Qh5
>                                    g6 Qf3 Ne5 Qf4
>               11     2.54   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
>                                    e5 Qe3 Kg8 Kb1
>               11->   3.04   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
>                                    e5 Qe3 Kg8 Kb1
>              time=3.04  cpu=397%  mat=0  n=20162587  fh=93%  nps=6632k
>              ext-> chk=894756 cap=56860 pp=25380 1rep=62964 mate=1213
>              predicted=0  nodes=20162587  evals=3001967
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 20%(raw) 19%(depth)  99%(sat)  97%(pawn)
>              hashing-> 0%(exact)  15%(lower)  1%(upper)
>              SMP->  split=1840  stop=221  data=17/64  cpu=12.08  elap=3.04
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   |   |   | *B|   |   |   |
>       +---+---+---+---+---+---+---+---+
>    7  | *P|   |   |   | *K| *P|   |   |
>       +---+---+---+---+---+---+---+---+
>    6  |   |   |   |   |   |   | *P|   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   |   | *P| P |   |   | *P|
>       +---+---+---+---+---+---+---+---+
>    4  |   |   | *P| P |   | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   |   |   | K |   | P |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P |   |   |   | N |   |   | P |
>       +---+---+---+---+---+---+---+---+
>    1  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>end-game phase
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                9     0.03   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
>                                    g4
>                9->   0.03   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
>                                    g4
>               10     0.05   0.52   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 Ke6 Kd2
>                                    Bb5 <HT>
>               10->   0.06   0.52   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 Ke6 Kd2
>                                    Bb5 <HT>
>               11     0.14   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
>                                    Kc3
>               11->   0.15   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
>                                    Kc3
>               12     0.34   0.63   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 a4 Kd2
>                                    <HT>
>               12->   0.39   0.63   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 a4 Kd2
>                                    <HT>
>               13     0.94   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
>                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
>               13->   1.05   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
>                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
>               14     2.20   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
>                                    Nxd5+ Kd8 Nf6 Bg6 d5
>               14->   2.78   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
>                                    Nxd5+ Kd8 Nf6 Bg6 d5
>              time=2.78  cpu=392%  mat=0  n=20421711  fh=90%  nps=7345k
>              ext-> chk=660016 cap=78389 pp=146133 1rep=14058 mate=380
>              predicted=0  nodes=20421711  evals=8713882
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 32%(raw) 31%(depth)  99%(sat)  95%(pawn)
>              hashing-> 0%(exact)  27%(lower)  2%(upper)
>              SMP->  split=4955  stop=524  data=19/64  cpu=10.92  elap=2.78
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R|   |   |   | *R|   | *K|   |
>       +---+---+---+---+---+---+---+---+
>    7  | *P| *P| *Q| *B|   | *P| *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   |   |   | *P|   | N | Q |
>       +---+---+---+---+---+---+---+---+
>    4  |   |   |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   | P |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  | P | P |   |   |   | P | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   |   | R |   | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                7     0.01   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
>                7->   0.03   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
>                8     0.06   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
>                                    Qxe4
>                8->   0.07   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
>                                    Qxe4
>                9     0.14   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
>                                    b3
>                9->   0.15   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
>                                    b3
>               10     0.71   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
>                                    Rxd8 Rxd8
>               10->   0.84   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
>                                    Rxd8 Rxd8
>               11     2.01   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
>                                    Rxd8 Rxd8 b3
>               11->   2.57   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
>                                    Rxd8 Rxd8 b3
>              time=2.57  cpu=391%  mat=0  n=19217226  fh=91%  nps=7477k
>              ext-> chk=411437 cap=57605 pp=800 1rep=60452 mate=7414
>              predicted=0  nodes=19217226  evals=4151914
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 20%(raw) 19%(depth)  99%(sat)  98%(pawn)
>              hashing-> 0%(exact)  15%(lower)  0%(upper)
>              SMP->  split=1111  stop=169  data=11/64  cpu=10.07  elap=2.57
>
>       +---+---+---+---+---+---+---+---+
>    8  |   |   | *R|   |   | *R| *K|   |
>       +---+---+---+---+---+---+---+---+
>    7  |   | *B| *Q| *N| *B| *P| *P|   |
>       +---+---+---+---+---+---+---+---+
>    6  |   | *P|   | *P| *P| *N|   | *P|
>       +---+---+---+---+---+---+---+---+
>    5  | *P| P |   |   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  | N |   | P |   | P |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  | P |   |   | B |   | N |   | P |
>       +---+---+---+---+---+---+---+---+
>    2  |   | B |   |   | Q | P | P |   |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   | R |   |   | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                6     0.03     ++   Bxe4!!
>                6     0.05  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7
>                6->   0.05  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 (s=3)
>                7     0.05  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 (s=2)
>                7->   0.06  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7
>                8     0.08  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rc5
>                8->   0.09  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rc5
>                9     0.16  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bc3 a4
>                9->   0.17  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bc3 a4
>               10     0.26  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rcc8 Bd4 Nfd5
>               10->   0.33  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rcc8 Bd4 Nfd5
>               11     0.61  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
>               11->   1.06  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
>                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
>                                    (s=2)
>               12     1.73  -0.24   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rcc8 Nd4 Nfd5 Nc6 a4
>               12->   4.55  -0.24   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
>                                    Bd3 Rcc8 Nd4 Nfd5 Nc6 a4 (s=4)
>              time=4.56  cpu=398%  mat=0  n=26966730  fh=92%  nps=5913k
>              ext-> chk=240280 cap=85566 pp=9402 1rep=12102 mate=360
>              predicted=0  nodes=26966730  evals=8602328
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 21%(raw) 20%(depth)  99%(sat)  99%(pawn)
>              hashing-> 0%(exact)  18%(lower)  0%(upper)
>              SMP->  split=1332  stop=119  data=14/64  cpu=18.15  elap=4.56
>
>       +---+---+---+---+---+---+---+---+
>    8  | *R|   | *B| *Q| *K|   |   | *R|
>       +---+---+---+---+---+---+---+---+
>    7  | *P| *P|   |   | *B| *P| *P| *P|
>       +---+---+---+---+---+---+---+---+
>    6  |   |   | *P|   |   |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    5  |   |   |   | *P| P |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    4  | P |   |   | Q |   | P |   |   |
>       +---+---+---+---+---+---+---+---+
>    3  |   |   | N |   | B |   |   |   |
>       +---+---+---+---+---+---+---+---+
>    2  |   | P | P |   |   |   | P | P |
>       +---+---+---+---+---+---+---+---+
>    1  | R |   |   |   |   | R | K |   |
>       +---+---+---+---+---+---+---+---+
>         a   b   c   d   e   f   g   h
>
>              time surplus   0.00  time limit 15:00 (15:00)
>              depth   time  score   variation (1)
>                7     0.03  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
>                7->   0.03  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
>                8     0.08  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Be4 Nxe4 dxe4
>                8->   0.08  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Be4 Nxe4 dxe4
>                9     0.33  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
>                                    Qxd3 Qxd3 Bxd3
>                9->   0.35  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
>                                    Qxd3 Qxd3 Bxd3
>               10     0.63  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
>                                    <HT>
>               10->   0.70  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
>                                    <HT>
>               11     1.74  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
>                                    Bc5 Bh4
>               11->   1.94  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
>                                    Bc5 Bh4
>              time=1.94  cpu=393%  mat=0  n=11361198  fh=90%  nps=5856k
>              ext-> chk=102239 cap=33426 pp=15570 1rep=6100 mate=24
>              predicted=0  nodes=11361198  evals=3461861
>              endgame tablebase-> probes=0  hits=0
>              hashing-> 21%(raw) 19%(depth)  99%(sat)  97%(pawn)
>              hashing-> 0%(exact)  17%(lower)  0%(upper)
>              SMP->  split=603  stop=81  data=10/64  cpu=7.64  elap=1.94
>Total nodes: 102829416
>Raw nodes per second: 6855294
>Total elapsed time: 15
>SMP time-to-ply measurement: 42.666667
>White(1): quit



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Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.