Search found 477 matches

by brianr
Tue Jan 12, 2021 9:05 pm
Forum: Computer Chess Club: General Topics
Topic: Some beginner questions about Lc0
Replies: 3
Views: 336

Re: Some beginner questions about Lc0

Why is 2 CPU cores default? In my test 1 core was fastest and 3 slowest. How does Lc0 use CPU? Lc0 is a totally different architecture and nothing like traditional alpha/beta engines. Lc0 uses CPUs to fill large batches of work for the GPUs to process with the net. The overhead in transferring data...
by brianr
Mon Jan 04, 2021 2:12 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Testing strategies for my engines playing strength
Replies: 8
Views: 388

Re: Testing strategies for my engines playing strength

I forgot a few more things. When you think you engine is stable, enter a tournament, like the monthly tourneys announced here. NOTHING will find bugs in an engine like a tournament. But please make an effort to get your engine stable. It is a pain when an engine has major problems for the tourney ma...
by brianr
Mon Jan 04, 2021 1:39 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Testing strategies for my engines playing strength
Replies: 8
Views: 388

Re: Testing strategies for my engines playing strength

Testing engines is its own specialty, however we all have to figure out some methodology to know if progress is being made. I cannot tell you how many times I have messed this up. That said, some suggestions: Learn to use cutechess-cli with an engines.json file for configurations. GUIs strongly not ...
by brianr
Sun Jan 03, 2021 6:38 pm
Forum: Computer Chess Club: General Topics
Topic: +100 elo breakthrough in new rewritten Lco engine ( Ceres)
Replies: 93
Views: 7254

Re: +100 elo breakthrough in new rewritten Lco engine ( Ceres)

While I have not used it in a GUI, based on what others are showing it clearly does work in GUIs.

Update: Ceres runs for me under Arena and Winboard both...

2nd Update: Runs fine under Cutechess GUI also.
by brianr
Sun Jan 03, 2021 6:27 pm
Forum: Computer Chess Club: General Topics
Topic: +100 elo breakthrough in new rewritten Lco engine ( Ceres)
Replies: 93
Views: 7254

Re: +100 elo breakthrough in new rewritten Lco engine ( Ceres)

Ceres is a UCI engine.
I have done those commands like go and the others and it plays just fine.

No, it does not load like Lc0.
There are no setoption commands.

I have not tried Ceres with a GUI, but it runs just fine with cutechess-cli.
by brianr
Sun Jan 03, 2021 5:46 pm
Forum: Computer Chess Club: General Topics
Topic: +100 elo breakthrough in new rewritten Lco engine ( Ceres)
Replies: 93
Views: 7254

Re: +100 elo breakthrough in new rewritten Lco engine ( Ceres)

corres wrote:
Sun Jan 03, 2021 5:28 pm
But without commands the Ceres can not work.
What commands are you looking for?
There are none of the setoption UCI commands that Lc0 might use as Ceres only uses the Lc0 backend.
Setup commands are in the json file for things like tablebase directories.
The "go" and other playing commands work.
by brianr
Sun Jan 03, 2021 3:18 pm
Forum: Computer Chess Club: General Topics
Topic: +100 elo breakthrough in new rewritten Lco engine ( Ceres)
Replies: 93
Views: 7254

Re: +100 elo breakthrough in new rewritten Lco engine ( Ceres)

From Ted Summers on Ed's forum: Here is a Boxed version that was uploaded by Chad on Discord. You will need to have Dot Net 5 installed. Ceres: https://drive.google.com/file/d/12wpPWyMfax1tlCKvAeUnlv0JgB2fh5gK/view?usp=sharing Dot Net: https://dotnet.microsoft.com/download/dotnet/thank-you/runtime-...
by brianr
Sun Jan 03, 2021 1:48 pm
Forum: Computer Chess Club: General Topics
Topic: +100 elo breakthrough in new rewritten Lco engine ( Ceres)
Replies: 93
Views: 7254

Re: +100 elo breakthrough in new rewritten Lco engine ( Ceres)

Some Ceres comments: Yes, I did get it working. No, I have no idea what combination of incantations made it work. Yes, doing so is a major PITA. Clearly, Ceres was a huge amount of work. The good news: the developer seemed intent on a New Year's release on the Leela Chess Zero Discord server. The ba...
by brianr
Fri Jan 01, 2021 12:37 pm
Forum: Computer Chess Club: General Topics
Topic: +100 elo breakthrough in new rewritten Lco engine ( Ceres)
Replies: 93
Views: 7254

Re: +100 elo breakthrough in new rewritten Lco engine ( Ceres)

Looks like things are a bit premature for using Ceres. Different "node" definitions render initial fixed node tests vs Lc0 invalid with default parameters, and time management problems result in time forfeits so my testing is on hold until the issues are addressed. See discussions on Leela Chess Zer...