Author: Enrique Irazoqui
Date: 15:13:29 10/19/99
Go up one level in this thread
On October 19, 1999 at 13:12:23, Christophe Theron wrote: >On October 19, 1999 at 12:06:36, Enrique Irazoqui wrote: > >>On October 19, 1999 at 06:02:11, Didzis Cirulis wrote: >> >>>On October 19, 1999 at 05:38:26, Enrique Irazoqui wrote: >>> >(snip) >> >>I checked all this with a middle-game position that can be considered "typical": >> >>3rr1k1/pp1nqp1p/2pb1np1/8/3N4/PP2P2P/1BQ1NPP1/R4RK1 b - - 0 22 >> >>CM6K computed at exactly the same speed, with or without Tiger in the >>background: >> >>Ply 04/09 17'' 17'' >>Ply 04/10 98'' 98'' >>Ply 05/11 282'' 282'' >> >>Tiger was slowed down by 15%, admittedly not all that much, but still a P500 >>becomes a P435. Both programs ran on a PII-500, PB off and 16MB hashtables. >> >>Times/ply for Tiger 12.0, without and with CM6K loaded (and idling). >> >>N9 6.7 7.68 >>N10 13.29 15.21 >>N11 43.83 50.53 >>N12 123.19 142.42 >> >>NPS 115793 100159 > > >Didzis does not only let CM idle. To have it really idle, you have to open a >dialog box. When you do so, Tiger is not slowed down significantly. > >Try it, and you'll see that you'll get almost no slowdown. > > >>Aside from this, Ed's findings about PB on/off seem quite conclusive to me. > > >Ed has just demonstrated that PB ON adds a significant amount of strength to a >program. He has not given comparative results about 2 program playing each with >PB OFF. But this significant amount is quite a bit more than what could be expected by just adding 50% more time. Meaning, or that's how I understood it, that there is something else, aside from time, that is hampered when PB is off. Anyway, if this doesn't apply to Tiger, here it is only an academic point. >My permanent brain management follows another philosophy and I have no problem >with testing Tiger with PB OFF. > >I don't want to find any excuse if CM7000 beats Tiger. > >However I don't understand exactly why the discussions are taking place NOW. :) Because NOW we received Tiger 12.0 and test it. It is not that I am jealously protecting the honor of Tiger, but I am simply trying to figure out why our findings are different. Enrique >The >current score is 4.5-2.5. Only 7 games have been played. > >Just turn only 1 loss into a win (you know how easily a game can turn from win >to loss and vice versa in computer chess), and you get an even result. > >Let's wait for a significant amount of games and we will see... > > > Christophe
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