perft results

[LoopList]

I made some perft tests with my new Loop-code:

Conditions:
========
CPU = AMD-FX60
Compiler = MS-VC-2005
Binaries = LOOP-64BIT
FEN-Position = r3r1k1/1pq2pp1/2p2n2/1PNn4/2QN2b1/6P1/3RPP2/2R3KB b - -

Results:
======
Depth = 5
Nodes = 323.787.902
Time = 4.188
Nps = 77.313.252

Depth = 6
Nodes = 15.097.513.050
Time = 211.328
Nps = 71.441.139

Are these simple performance-results ok???

[LoopList]

Now I want to find out, if it is possible to beat these results with magic bitboards.

The new results will follow in a few days...

[Uri Blass]

I made some perft tests with my new Loop-code:

Conditions:
========
CPU = AMD-FX60
Compiler = MS-VC-2005
Binaries = LOOP-64BIT
FEN-Position = r3r1k1/1pq2pp1/2p2n2/1PNn4/2QN2b1/6P1/3RPP2/2R3KB b - -

Results:
======
Depth = 5
Nodes = 323.787.902
Time = 4.188
Nps = 77.313.252

Depth = 6
Nodes = 15.097.513.050
Time = 211.328
Nps = 71.441.139

Are these simple performance-results ok???

Your numbers for perft are correct.

Movei can calculate them faster on the same hardware.

You can download movei and print in console mod
setboard r3r1k1/1pq2pp1/2p2n2/1PNn4/2QN2b1/6P1/3RPP2/2R3KB b - -
perft 6 and see it.

Note that movei is using 256 mbytes hash for calculating perft.

Movei's times for calculating perft on a slow pIV:
1)4.844 seconds for perft 5.
2)126.531 seconds for perft 6.

Uri

[hgm]

Seems correct:

Code: Select all

$ ./qperft 6 "r3r1k1/1pq2pp1/2p2n2/1PNn4/2QN2b1/6P1/3RPP2/2R3KB b"
 - - - - - - - - - - - -
 - - - - - - - - - - - -
 - - r . . . r . k . - -
 - - . p q . . p p . - -
 - - . . p . . n . . - -
 - - . P N n . . . . - -
 - - . . Q N . . b . - -
 - - . . . . . . P . - -
 - - . . . R P P . . - -
 - - . . R . . . K B - -
 - - - - - - - - - - - -
 - - - - - - - - - - - -

Quick Perft by H.G. Muller
Perft mode: No hashing, bulk counting in horizon nodes

perft(1)=                  56 ( 0.000 sec)

perft(2)=                2594 ( 0.000 sec)

perft(3)=              137198 ( 0.000 sec)

perft(4)=             6391735 ( 0.078 sec)

perft(5)=           323787902 ( 3.625 sec)

perft(6)=         15097513050 (183.063 sec)

$

(With my specialized perft on a 2.8GHz Pentium IV)