A chess wish

Discussion of anything and everything relating to chess playing software and machines.

Moderators: Harvey Williamson, Dann Corbit, hgm

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
Post Reply
kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 3:19 pm

A chess wish

Post by kgburcham » Mon Jul 05, 2010 3:48 pm

I wish Houdini, Fire, and Stockfish would run 12 threads.

kgburcham

User avatar
Houdini
Posts: 1471
Joined: Mon Mar 15, 2010 11:00 pm
Contact:

Re: A chess wish

Post by Houdini » Mon Jul 05, 2010 6:13 pm

Your wish can be granted :).
I can compile a 12-thread x64 Houdini development version, optionally with Large Page support, if you like.

Robert

jpqy
Posts: 530
Joined: Thu Apr 24, 2008 7:31 am
Location: Belgium

Re: A chess wish

Post by jpqy » Mon Jul 05, 2010 6:36 pm

Why not directly to for example 512 cores/threads version!!

Or a automatic core/thread setting!

kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 3:19 pm

Re: A chess wish

Post by kgburcham » Mon Jul 05, 2010 7:24 pm

Houdini wrote:Your wish can be granted :).
I can compile a 12-thread x64 Houdini development version, optionally with Large Page support, if you like.

Robert
ok thanks. i will post results once you tell me it is ready.

I noticed some smp programs go immediately to 100% usage in task manager on all threads and stay at exactly 100%. some programs do not. Some will show it is using 12 threads 100% of the time but not 100% of each core.

kgburcham

User avatar
Houdini
Posts: 1471
Joined: Mon Mar 15, 2010 11:00 pm
Contact:

Re: A chess wish

Post by Houdini » Mon Jul 05, 2010 8:39 pm

PM with download link and some additional information sent.

Robert

User avatar
michiguel
Posts: 6401
Joined: Thu Mar 09, 2006 7:30 pm
Location: Chicago, Illinois, USA
Contact:

Re: A chess wish

Post by michiguel » Mon Jul 05, 2010 9:56 pm

kgburcham wrote:
Houdini wrote:Your wish can be granted :).
I can compile a 12-thread x64 Houdini development version, optionally with Large Page support, if you like.

Robert
ok thanks. i will post results once you tell me it is ready.

I noticed some smp programs go immediately to 100% usage in task manager on all threads and stay at exactly 100%. some programs do not. Some will show it is using 12 threads 100% of the time but not 100% of each core.

kgburcham
Some programs may have some threads waiting with a "loop" (busy but acturally doing nothing) and others (like gaviota) wait without using the CPU. That is why CPU usage may not be a good measure of efficiency. A car waiting in red light with the engine on or off is still waiting. How the NPS scales up may give a better idea, but still... The best will be time to reach a certain depth in several positions.

Miguel

Post Reply