Author: Matthew Hull
Date: 18:24:47 11/25/03
Go up one level in this thread
On November 25, 2003 at 20:57:46, Dann Corbit wrote: >On November 25, 2003 at 20:03:11, Jeremiah Penery wrote: > >>On November 25, 2003 at 01:23:27, Dann Corbit wrote: >> >>>On November 25, 2003 at 00:17:00, Derek Paquette wrote: >>> >>>>What KN/S is Brutus getting anyone know? >>>>Or how far is it searching, or how thorough etc? >>> >>>From: >>>http://www.talkchess.com/forums/1/message.html?330084 >>>8 PC cluster, with hardware acceleration. >>>2.5 million NPS per card * 8 cards = 20M NPS (less threading loss, which is >>>probably considerable). >>> >>>Might be twice that if there are two cards per machine (it isn't clear to me). >> >>Listening to Vincent commentate Diep games on ICC, he's been asked about Brutus >>a lot. He has said that Brutus does some 600k "software nodes" a second, where >>each software node consists of a 2-3 ply hardware search. >> >>I don't know how accurate this is, but I would assume Vincent has gotten >>first-hand knowledge from someone about it and that he wouldn't make this up. > >I wonder what sort of NPS Vincent is getting with a bazillion processors (doing >his little part for global warming -- but then again, we're scheduled for >another ice age according to the experts, so he may have just saved >civilization). Mridul has been posting the Diep read-outs on ICC. It's running from 2 to 6 million NPS. It seems that the longer it thinks, the more processesors get "on board" and the numbers start to climb. But at short time controls, the numbers stay low. Depths seem to linger around 14 to 16 ply, which for Diep are apparently un-precedented. MH >;-)
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