Search found 84 matches

by pijl
Mon May 13, 2019 1:51 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: A bug is squashing me. HELP!
Replies: 20
Views: 2627

Re: A bug is squashing me. HELP!

Yes, these are the next steps I was planning to implement. I have added Qsearch() and it is acting much better now. In the initial position searched to ply 8 and ply 9 it returns 0 as expected. However, there is still a problem. In the following position. r1bqkbnr/1ppp1ppp/p1n5/1B2p3/4P3/5N2/PPPP1P...
by pijl
Sat Mar 02, 2019 6:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 20 New NN Engines has been reported to the TCEC
Replies: 10
Views: 2381

Re: 20 New NN Engines has been reported to the TCEC

Sven wrote:
Sat Mar 02, 2019 5:13 pm
Ok. Is there a common estimate of the slowdown for a non-NUMA-aware engine on such a machine?
Torsten once tested that for me in one of the early TCEC editions. I don't rmember exactly how much, but it was significant (order of magnitude 10-20%).
by pijl
Sat Mar 02, 2019 4:22 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 20 New NN Engines has been reported to the TCEC
Replies: 10
Views: 2381

Re: 20 New NN Engines has been reported to the TCEC

Sven wrote:
Sat Mar 02, 2019 11:40 am
Is NUMA awareness currently required at TCEC?
Required not. Recommended yes, as it is a dual-socket machine.
by pijl
Fri Mar 01, 2019 6:54 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 20 New NN Engines has been reported to the TCEC
Replies: 10
Views: 2381

Re: 20 New NN Engines has been reported to the TCEC

The Baron does not use neural nets (yet). The version registered to TCEC is a NUMA aware compile of 3.44
Richard.
by pijl
Mon Jan 28, 2019 8:29 am
Forum: Computer Chess Club: General Topics
Topic: The Baron 3.44 (New Version)
Replies: 24
Views: 4819

Re: The Baron 3.44 (New Version)

Jesse Gersenson wrote:
Mon Jan 28, 2019 12:46 am
I'm not sure how many thread the Baron supports -- wine is "limited" to 64.
I have a hardcoded limit of 32 threads in the Baron. If anyone wants to test on bigger machines: Drop me a message. Most likely you'll need a NUMA aware compile as well (the distributed version is not).
by pijl
Wed Jan 23, 2019 12:48 am
Forum: Computer Chess Club: General Topics
Topic: The Baron 3.44 (New Version)
Replies: 24
Views: 4819

Re: The Baron 3.44 (New Version)

I'll take a look at it. I'm not aware of making changes that could break chess960 support, but apparently something is not working as expected. I must confess I haven't used it myself in a while. Richard. I found the problem and Ray has in the meantime checked it as well. I sent a new package to St...
by pijl
Wed Jan 09, 2019 9:15 pm
Forum: Computer Chess Club: General Topics
Topic: The Baron 3.44 (New Version)
Replies: 24
Views: 4819

Re: The Baron 3.44 (New Version)

I did not really plan one. I'm using the Baron with wine in linux (both 32 and 64 bits) myself without any problems, so the need for a native compile seems limited to me.
by pijl
Wed Jan 02, 2019 3:58 pm
Forum: Computer Chess Club: General Topics
Topic: The Baron 3.44 (New Version)
Replies: 24
Views: 4819

Re: The Baron 3.44 (New Version)

Hi Werner, Not sure what your question is. The commented out values are the defaults, but you can experiment with them. If you find other values to be clearly stronger I'd appreciate the feedback. I see you enabled Syzygy in qsearch, which can be really heavy, especially on multicore machines, but f...
by pijl
Tue Jan 01, 2019 1:16 am
Forum: Computer Chess Club: General Topics
Topic: The Baron 3.44 (New Version)
Replies: 24
Views: 4819

Re: The Baron 3.44 (New Version)

I'll take a look at it. I'm not aware of making changes that could break chess960 support, but apparently something is not working as expected. I must confess I haven't used it myself in a while.
Richard.
by pijl
Sun Aug 26, 2018 8:48 am
Forum: Computer Chess Club: General Topics
Topic: New WCCC Version of The Baron Released (Plus Polyglot Opening Book)
Replies: 14
Views: 2889

Re: New WCCC Version of The Baron Released (Plus Polyglot Opening Book)

Unfortunately there is an annoying bug in this version for those that are not playing with the complete 6-men set (so either with missing files, or just the 5-men set). If you do not have the complete 6-men it is definitely better not to use Syzygy with the Baron. The problem is fixed in the upcomin...