Search found 89 matches

by FlavusSnow
Sat Jan 21, 2012 4:53 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Rounding
Replies: 44
Views: 6852

Re: Rounding

Could these different precision values be set somehow and optimized with the same methods used to optimize other terms (namely CLOP)?
by FlavusSnow
Thu Dec 29, 2011 7:33 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Tablebases loaded in System Memory
Replies: 6
Views: 987

Tablebases loaded in System Memory

A while back Robert Houdart recommended loading critical tablebase data into memory as a WDL file. Has anyone ever tried mounting a temporary file system in system memory, copying the tablebases to this temporary system, then using this as the default path for the engine's tablebases? 3-4-5 man TBs ...
by FlavusSnow
Sun Nov 20, 2011 5:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: AMD Bulldozer - Compiler Impact on Performance
Replies: 2
Views: 571

AMD Bulldozer - Compiler Impact on Performance

The question is, will bulldozer's chess performance increase as compilers are improved to target the new architecture? Or is it simply a hardware issue (too little L1 cache with too high of latency) and there is no hope?
by FlavusSnow
Thu Oct 13, 2011 12:34 am
Forum: Computer Chess Club: General Topics
Topic: AMD Zambezi/FX/Bulldozer chess benchmarks
Replies: 33
Views: 5058

Re: AMD Zambezi/FX/Bulldozer chess benchmarks

Just to note, the intel chips may be 4 core, but those benchmarks are definitely using HT... so 8 threads of intel vs. 6 threads of AMD on the Thuban chips. And of course 8 vs 8 when Bulldozer is what you speak of.
by FlavusSnow
Mon Oct 03, 2011 1:57 am
Forum: Computer Chess Club: General Topics
Topic: compare Fritzmark to servers with quad sockets
Replies: 3
Views: 737

Re: compare Fritzmark to servers with quad sockets

Quick question, were these run with NUMA or iterleaved memory? The intel CPUs will perform much better than AMD CPUs if you do NUMA, but if you switch to interleaved on the AMD chips it generally improve the performance on more than 2 socket machines. I don't think its ever enough to catch up to int...
by FlavusSnow
Sun Sep 18, 2011 11:51 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Over-aggressive pruning
Replies: 3
Views: 828

Over-aggressive pruning

I wonder if it would be beneficial to prune extremely aggressively followed by a verification using a more conservative but lower depth search. Today's top engines are undoubtedly the strongest any engine has ever been; however, I have seen many individual positions where any one of the top 5 has pr...
by FlavusSnow
Tue Aug 02, 2011 1:31 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: All checkmate positions possible
Replies: 9
Views: 1490

Re: All checkmate positions possible

Can't we just sell the time machine?

I can think of better things to do with a time machine...
by FlavusSnow
Wed Jul 27, 2011 10:52 am
Forum: Computer Chess Club: General Topics
Topic: Soon...
Replies: 36
Views: 11146

Re: Soon...

Linux Support: A prerequisite to all other features.

Why spend hundreds or even thousands (if 4P motherboard) on an OS to run free software?
by FlavusSnow
Fri Jul 22, 2011 10:13 pm
Forum: Computer Chess Club: General Topics
Topic: Some news about Houdini 2.0
Replies: 18
Views: 7151

Re: Some news about Houdini 2.0

Any thought on a Linux compile?
by FlavusSnow
Fri Jul 22, 2011 2:25 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Solving Chess
Replies: 37
Views: 6326

Re: Solving Chess

James, I find your idea about trimming down the moves very interesting as that is really the only part that I think I'm lacking in my theory. I'm wondering if one could make the following assumptions about chess : 1. Every legal chess position where it is white's move would have only 1 best move or...