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Subject: Re: Questions about the new Nalimov tablebase files...

Author: Mike S.

Date: 11:18:40 12/14/02

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On December 14, 2002 at 13:40:37, Robert Hyatt wrote:

>On December 13, 2002 at 23:16:25, Mike S. wrote:
>
>>(...)
>>So far, I didn't find the old one on the reorganised FTP. - It was a good
>>resource for people who have a slow internet connection (modem dial-up). I
>>recommended sometimes to newcomers, to download that and generate the 4-piece
>>tbs. on their local machines, so that they didn't have to make long expensive
>>download sessions.

>the problem is that the generator is going to take far more machine than what
>you have.
>
>First, if you want to do a P table, you have to have _all_ the promotion cases.
>IE get ready
>to have a terabyte of space (probably 2-3x this to generate) when you tackle
>KPPKPP.  You
>have to stop and think a bit to appreciate what you are going to need.  Just the
>memory to
>handle the generation is non-trivial, not counting the disk space because tables
>are not built
>in compressed form.

Yes; I didn't even try to generate 5-piece tables (I'm using a few which a have
from various CDs).

But I meant only the * 3- and 4-piece tbs.* , i.e. for newcomers which have
none. The complete 3/4-piece set is ~30 MB which is too big to download for
some, so I often recommended the generator. Once I tried it and generated the 3-
and 4-piece files in about 4 hours on P3/700 IIRC. Very useful.

Thanks anyway,
Mike Scheidl



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