Author: Paul
Date: 18:10:06 05/05/01
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On May 05, 2001 at 20:46:45, Robert Hyatt wrote: >On May 05, 2001 at 19:26:11, Paul wrote: > >>Ok .. I'm into testsuites now :) ... but what is the proper way to record the >>solution times? Do you take the time at which the keymove is found (the final >>fail high), or the one when the fail high research has finished and produced a >>new pv & score? Because there can be a big difference, eg. when you're at ply 13 >>the research can take quite some time. Or is this a silly question? > >It depends on the engine. The _right_ time is the time after which it would >play the right move. IE for Crafty, if a move fails high at the root and >you see the Nxe4!! move displayed, it would play it _right then_ if time >ran out... so the fail-high time is the time to use. Well ... in my GUI, if a rootmove fails high, the move lights up in green, does that count? ;) But seriously, what do you do when it fails high (after a 'null' window search) and the research doesn't? Is the pv from the (previous) bestmove still there or is it gone at the moment of the failhigh? My guess is that you only replace the bestmove & pv when time runs out or when the failhigh is resolved. I know, I should look this up in the archives, must have been asked before! >If a program won't play the fail-high move without resolving the score, then >you have to use the time it needs to actually decide to play the move... Ok, so I'll have to change to your way to get better solution times. Thanks, Paul
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