Author: Robert Hyatt
Date: 08:47:03 04/24/02
Go up one level in this thread
On April 24, 2002 at 11:32:28, Jerry Jones wrote: >On April 24, 2002 at 10:30:02, Robert Hyatt wrote: > >>On April 24, 2002 at 08:32:12, Jerry Jones wrote: >> >>>I keep getting this crash message from Winboard when I use Crafty's opening book >>>: >>> >>>CRAFTY caused a general protection fault >>>in module <unknown> at 0000:0000e3ba. >>>Registers: >>>EAX=0070fe28 CS=0167 EIP=0000e3ba EFLGS=00010206 >>>EBX=0070fe28 SS=016f ESP=00610024 EBP=00610044 >>>ECX=006100c8 DS=016f ESI=815b196c FS=10ff >>>EDX=bff76855 ES=016f EDI=006100f0 GS=0000 >>>Bytes at CS:EIP: >>>26 8e 26 a6 13 eb 2d 2e 8e 26 02 00 66 64 a1 e0 >>>Stack dump: >>>bff76849 006100f0 0070fe28 0061010c 006100c8 006101fc bff76855 0070fe28 006100d8 >>>bff87fe9 006100f0 0070fe28 0061010c 006100c8 0000e3b6 006102b4 >>> >>>Book.bin , books.bin and bookc.bin were built from exactly the same PGN >>>collection and are about 800 Mb each. >> >> >>Why? If they are all the same, delete bookc.bin and books.bin as they >>are just wasting space. >> >>If a book.bin is 800mb, you better have at least 4 gigabytes free to build >>a book... >> > >Database.pgn was about 500 Mb >I gave Crafty the command : >book create database.pgn 60 >And a few hours later book.bin (800 Mb) was built. So it is built _already_. > >You mean it rebuilds itself in virtual memory ? >Or does it just need 4 gigabytes to run well ? I mean it needs a _bunch_ of free disk space for the temporary files it has to create while building a book. Virtual memory is not needed. > >Maybe it's better to keep bookc.bin instead of book.bin since I'll use it mainly >against other engines ? Again, no. Read the documentation file. book.bin is _the_ book file. books.bin/bookc.bin are intended to offer _suggestions_ about which moves in book.bin should be preferred in given positions. Making them all the same accomplishes exactly nothing... There are pgn files on my ftp site to create books.bin/bookc.bin... they are very small.
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