Author: José Antônio Fabiano Mendes
Date: 06:29:52 03/21/00
Go up one level in this thread
On March 21, 2000 at 09:04:06, Bernhard Bauer wrote: >On March 20, 2000 at 12:28:57, blass uri wrote: > >>On March 20, 2000 at 03:49:50, Paulo Soares wrote: >> >>>On March 20, 2000 at 00:58:48, Côme wrote: >>> >>>>On March 19, 2000 at 22:22:34, Paulo Soares wrote: >>>> >>>>>On March 19, 2000 at 21:48:30, Aloisio Ponti Lopes wrote: >>>>> >>>>>>...maybe it will be available in the next 2 years. >>>>>> >>>>>>A. Ponti >>>>> >>>>>Which would be the largest number of pieces to be used in Nalimov >>>>>Tablebases with 140Mgz? 7, 8, 9? >>>>> >>>>>Paulo Soares, from Brazil >>>> >>>>Hello, >>>>IMHO only 6 pieces. >>>>Best Regards >>>>Alexandre Côme >>> >>>Only 6! How many memory for 7 pieces? >>>Thanks, >>>Paulo >> >>I think that if you want all of them you need about some hundreds times more >>memory for adding one piece. >> >>The problem is that the number of possibility of 7 pieces is significantly >>bigger than the number of possibility of 6 pieces and not only the fact that you >>need about 60 times more memory for one 7 pieces tablebase relative to 6 pieces >>tablebase. >> >>You need some Gbytes for 5 pieces tablebases >>then you probably need some hundreds of thoushands of Gbytes for all the 7 >>pieces tablebases >> >>You need sometimes hundreds of mbytes for one 5 pieces tablebases so you need >>something some Gbytes to use one 6 men tablebases and you need something like >>100-200 Gbytes to use only one 7 men tablebase. >> >>Uri > >As a rule of thumb the number of files for n+1 men tablebases is 4 times the >number of n men files. The size is going up with a factor of ~60. So if you >need 5 gigs for the 5-men class you will need about 1.2 tera bytes for the >6-men class. This is "only" 30 40-gig drives. >IMHO it would make a good project for a university to generate and hold them on >disk. > >Kind regards >Bernhard IIRC,Ken Thompson will store the 6-piece endgames in DVD. Paper:http://nobi.inf.ethz.ch/fdc/icca/icca0603.htm Quote:"7-piece endgames exceed the computacional and storage capabilities of today´s computers." JAFM
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.