Author: Uri Blass
Date: 04:49:42 12/30/01
Go up one level in this thread
On December 30, 2001 at 07:02:43, Peter Fendrich wrote: >On December 29, 2001 at 20:24:10, Uri Blass wrote: > >>On December 29, 2001 at 20:09:15, Peter Fendrich wrote: >> >>>On December 29, 2001 at 19:13:33, Christophe Theron wrote: >>> >>>>On December 29, 2001 at 18:48:32, Severi Salminen wrote: >>>> >>>>>>>>If your full QS eats 80% of the time I would say that limiting QS is indeed a >>>>>>>>must. However my QS (full) takes about 10-15% (25-30% with checks) and so the >>>>>>>>picture is quite different then. >>>>>>> >>>>>>>Ok, but what about nodes? Does your qsearch take only 10-15% of all the nodes? >>>>>>>That's quite low... >>>>>>> >>>>>>>Severi >>>>>> >>>>>>Yes that is very impressive, I must have lots of room for improvement ;) >>>>> >>>>>Yeah, but no way it can be 10% of all the nodes: that is just too low. Or then >>>>>it prunes like hell... >>>>> >>>>>Severi >>>> >>>> >>>> >>>>Believe it or not, above 30% you have a big problem somewhere. >>>> >>>>That's the reason why using a SEE instead of the QSearch is not an improvement. >>>> >>>>Remember: we do not count the horizon nodes as being in the QSearch, because >>>>with or without QSearch you have to visit them anyway. >>>> >>>> >>>> >>>> Christophe >>> >>>This is quite funny... >>>It's not the first time where there is a long thread about qsearch performance >>>and it turns out that people count both nodes and Qnodes different. >>>Especially the transition from ordinary search to Qsearch seems to be handled >>>differently. >>>What exactly do you mean with horizon nodes? >>> >>>//Peter >> >>It is clear. >> >>horizon nodes are the moves that you make before calling qsearch. >> >>you could not avoid making them even without qsearch so you should not count >>them. >> >>after 1.e4 e5 2.d4 the qsearch incluse exactly 2 nodes >>2...exd4 3.Qxd4 and not 3 nodes(2.d4 exd4 3.Qxd4) >> >>Uri > >If it's that clear, why did Christofe have to point out that he doesn't count >2.d4? Of cource he shouldn't count that. I meant that it is clear what christophe meant by horizon nodes The meaning of the words horizon nodes is clear from the following sentence of christophe: "Remember: we do not count the horizon nodes as being in the QSearch, because with or without QSearch you have to visit them anyway." Uri
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