Author: Tim Foden
Date: 00:56:33 05/07/03
Go up one level in this thread
On May 06, 2003 at 19:24:23, Magoo wrote: >After making alot of functions to macros and alot of other stuff, my program is >much faster!! >Perft 5 (without evaluating nodes) gives: >Depth:5, Nodes:5072212, Time:63 sec, Nps:80511, Value:0 > >But!! I know other programs (i been looking at mscp and faile) do this >at least 6 times faster, (that is perft 5 < 10sec). >I've looked at the source for the programs i compare with, especially faile does >alot of stuff in the move_generator, mine is smaller, maybe a few more if >statments. >Now, if i only could figure out why it is so slow, it shouldn't be!! > >Flat profile: > >Each sample counts as 0.01 seconds. > % cumulative self self total > time seconds seconds calls s/call s/call name > 66.51 42.12 42.12 5087588 0.00 0.00 move_generator > 3.65 56.68 2.31 5087587 0.00 0.00 undo_move > 3.21 58.71 2.03 5087587 0.00 0.00 do_move Does your move generate generate all moves in a position in one go, or do you only generate one move at a time? If you are generating all moves in one go, then it looks like you are calling your movegen in the leaf nodes. You really should have much fewer calls to your movegen than to your make/unmake move routines. Cheers, Tim.
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