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Article #109

Re: Hash file is generated too large

#109
From: Urban Koistinen
Date: Sun, 30 Aug 1992 14:52
34 lines
1948 bytes
In article <1992Aug26.115928.3124@Informatik.TU-Muenchen.DE> schoett@informatik.tu-muenchen.de (Oliver Schoett) writes:
->I tried generating the hash file with gnuchess -c 22, as suggested in
->the man page.  This is supposed to make a 4 MB hash file, but instead
->it wrote approx. 16 MB until the file system filled up.  Did I do
->something wrong, or is this a bug?  (This is patchlevel 56 on SunOS

You did something wrong :-)
Try gnuchess -c 10 first to see how big the file gets.

->4.1.1, compiled with gcc 2.2.2, CFLAGS= -O2 -funroll-loops
->-traditional-cpp # gnu cc 2.00 on SunOS.)

"-c 22" should create a hash file with 2^22 POSITIONS.
POSITION > Byte

For 5.0 I think file sizes should be in bytes if convenient.
Maybe the fast transposition table size should too.
It depend on the cost of % v & (mod versus and).

->
->Another question: is there a way for the user to choose a different
->book file than the (library) file name that has been compiled in?
Try using "ln -s defined-bookfile real-bookfile" :-)
See "man ln" for details.

->
->
->Oliver Schoett     Inst. f. Informatik (H2), Technische Univ. M"unchen
->                   Postfach 20 24 20,     8000 M"unchen 2,     Germany
->schoett@informatik.tu-muenchen.de    phone +49 89 2105-2399  fax -8207


-- 
Urban Koistinen - md85-epi@nada.kth.se
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From: md85-epi@alv.nada.kth.se (Urban Koistinen)
Subject: Re: Hash file is generated too large
Message-ID: <1992Aug30.145219.28961@kth.se>
Sender: usenet@kth.se (Usenet)
Nntp-Posting-Host: alv.nada.kth.se
Organization: Royal Institute of Technology, Stockholm, Sweden
Date: Sun, 30 Aug 1992 14:52:19 GMT
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