Author: Uri Blass
Date: 00:20:02 04/01/02
Go up one level in this thread
On April 01, 2002 at 01:16:22, pavel wrote: >On April 01, 2002 at 01:01:12, Chessfun wrote: > >>On March 31, 2002 at 18:41:24, Mike Hood wrote: >> >>>The normal figure thrown about for the size of a complete 6-piece egtb >>>collection is "about a terabyte". Can we try to make this figure a bit more >>>accurate? In the tablebase generation program the file size calculation is >>>separate from the generation itself, so it should be possible to calculate the >>>size of the uncompressed files exactly. When we have that we can make an >>>estimation of the size of the compressed tablebases (approx 20% of the >>>uncompressed size). And when we have that figure we can sit back and watch the >>>developments in storage media to see when 6-piece TBs become technically >>>feasible. Constellation 3D promised their FMD technology would produce optical >>>disks with a capacity of 1.5 terabyte, but they've failed to deliver so far. >>> >>>There should be 365 6-piece tablebase pairs of varying importance, in three main >>>groups: >>> >>>Kxx-Kxx : 120 tablebases >>>Kxxx-Kx : 175 tablebases >>>Kxxxx-K : 70 tablebases >>> >>>If we have the size for each group we'll know how much space a person needs on >>>his hard drive to generate KPPKPP, KPPPKP and KPPPPK respectively. Or someone >>>can fire up his university's supercomputer. >>> >>>Maybe it's just an academic pursuit at present, but technology has a habit of >>>overtaking you when you least expect it. >>> >>>And when we've finished with the 6-piece tablebases, what about the 7-piece >>>egtb's? >>> >>>Kxxx-Kxx : 525 tablebases >>>Kxxxx-Kx : 350 tablebases >>>Kxxxxx-K : 126 tablebases >>> >>>I bet you're all dying to get your hands on the KBBBBBK tablebase ;) >> >> >>According to John the next CM will have a 6 person tablebase generator >>http://www.talkchess.com/forums/1/message.html?220246 >>The generation size of all 6 person bases will be compressed and will only >>take 15 Gb, generation of all 6 person will take about 8 hours. >> >>Sarah. > > >Even though that would be great, it sounds very unrealistic (atleast to me), did >you get that information from John? > >only 8 hours and 15 gb ! WOW. > >pavs ;) I guess that the numbers of 15 gb is going to be changed in 2.4 to more realistic numbers. The 8 hours is realistic and I expect the computers of 1.4.2020 to be able to generate all the 6 piece tablebases in 8 hours Uri
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.