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Subject: Re: Linux and chess article

Author: Vincent Diepeveen

Date: 07:17:21 11/01/99

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On October 31, 1999 at 16:05:34, Fernando Villegas wrote:

>On October 30, 1999 at 09:44:39, Robert Pawlak wrote:
>
>>I've put an article up on my web page. There is some interesting info for users,
>>potential users, and developers.

Hello Robert,

You forgot to mention in your article
that DIEP is available for linux-native. it's just a
textmode xboard engine, but also works great from console.
prize $60 US, or 119 dutch guilders, so it's not freeware
and i have currently only sold 1 version (first version i sold
i sold for half price) for native linux... ...so saying commercial
programs are in big demand under linux is a kind of big word.

I have totally gotten like 20 emails asking for a linux version of
DIEP all those years. Compare that to a few thousand emails short
after every world championship for the newest version of DIEP (diep used
to be shareware first few years and for all those cdroms sold i don't
get a penny).

I send now and then an update for linux to 2 testers and 1 user.
currently improving the parallellism of DIEP.


DIEP-linux is 4 processors capable (more on demand), though you need at least
kernel 2.2.x for it to run with some decent hashtables. That won't
be a problem though. this kernel (2.2.10 for example in redhat) is most
distributed now.

A 2 processor version of DIEP under linux is playing at fics (diepblue)
or icc (Secret), so you can first try how it plays if that's a main concern.
Operated by Zeke Smigel.

It's running the same version i used for playing the dutch open championship.
DIEP also ran under linux there on Bob's Quad Xeon from Birmingham Alabama.

DIEP is also running on GICS at a K6-300 at DiepChess(C), operated by
Ralph Hellmig.

The linux executable is around 8% slower than the windows executable,
which is caused by the fact that microsoft visual c++ compiler generates
faster code than the GCC 2.96 compiler.

Linux doesn't support more than 32 mb shared anonymous memory, which i consider
a big problem for linux, but i hacked
around that in DIEP, therefore diep DOES support up to a few gigabytes
hashtable (2 currently, plan to expand that).

Greetings,
Vincent

>>
>>http://members.aol.com/rjpawlak/ch_widow.html
>>
>>Enjoy!
>
>Thanks
>Fernando



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