How to program multi processor and 64 bit chess engines

[kaustubh]

How to program multi processor and 64 bit chess engines , is there an open source engine which is 64 bit and multi processor working.

[Gandalf]

I am hardly an expert in the matter, but from what I am aware you simply optimize your code so that when you tell the compiler to create a 64 bit or SMP executable, it takes advantage of the respective features. In other words, it's just your average code with a few things tweaked to better take advantage of 64 bit CPUs or multiple cores. The compiler does the rest.

Exuse any vagueness that probably comes from my lack of experience.

[Alessandro Scotti]

How to program multi processor and 64 bit chess engines , is there an open source engine which is 64 bit and multi processor working.

Crafty and Glaurung both support multiple processors, and both take advantage of 64 bit architectures to get a nice speedup.

[Volker Pittlik]

...In other words, it's just your average code with a few things tweaked to better take advantage of 64 bit CPUs or multiple cores. The compiler does the rest...

You must not forget the

Code: Select all

Do_what_I_want

command at the beginning. To become World Champion simply activate the

Code: Select all

Play unbeatable

option in your favorite GUI.

SCNR

Volker

[hgm]

These are compiler switches, isn't it? I always use:

gcc engine.c -Elo=3500

[Volker Pittlik]

...
gcc engine.c -Elo=3500

This is possibly Rybka's secret.

[Vempele]

...
gcc engine.c -Elo=3500

This is possibly Rybka's secret.

Nah, Vas uses MSVC. That would be:

cl engine.c /Elo:3500

[Gandalf]

Funny. Yet, I am still no closer to understanding what is wrong with what I posted... As a guess, should I have said something like "it is an impossibly difficult task that requires you to completely rewrite critical portions of your code"?

[Dariusz Orzechowski]

This is rude and pathetic. It's really sad to watch such "experts".

On topic: take a look at the Viper by Tord Romstad. It should fit your needs.

http://www.glaurungchess.com/viper/

[Volker Pittlik]

...It's really sad to watch such "experts"...

Or even worse to answer to them.

P.S. It seems your irony detector is buggy.

eod