LC0 v0.28.0 rc-1 Is Out! Breaking News!

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supersharp77
Posts: 1242
Joined: Sat Jul 05, 2014 7:54 am
Location: Southwest USA

LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by supersharp77 »

Strange case indeed because as it so happens I was looking at the LC0 github site and it was still on LC0 v0.27.0 (Feb 2021!!) as of very late last night (1:00am?) I was also looking at some old pages on the Chessengines diary site....when I refreshed the Chess Engines Diary site and the Github site this afternoon.....There it was...WOW...Talk about "Random Activity"... :) :wink:

https://github.com/LeelaChessZero/lc0/r ... 0.28.0-rc1


"Multigather is now made the default (and also improved). Some search settings
have changed meaning, so if you have modified values please discard them.
Specifically, max-collision-events, max-collision-visits and
max-out-of-order-evals-factor have changed default values, but other options
also affect the search. Similarly, check that your gui is not caching the old
values.
Performance improvements for the cuda/cudnn backends.
Support for policy focus during training.
Larger/stronger 15b default net for all packages except android, blas and dnnl
that get a new 10b network.
The distributed binaries come with the mimalloc memory allocator for better
performance when a large tree has to be destroyed (e.g. after an unexpected
move).
The legacy time manager will use more time for the first move after a long
book line."
The --preload command line flag will initialize the backend and load the
network during startup.
A 'fen' command was added as a UCI extension to print the current position.
Experimental onednn backend for recent intel cpus and gpus.


ps..Big Thanks To Chessenginesdairy...
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Graham Banks
Posts: 41423
Joined: Sun Feb 26, 2006 10:52 am
Location: Auckland, NZ

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by Graham Banks »

supersharp77 wrote: Sat Jun 19, 2021 10:34 pm Strange case indeed because as it so happens I was looking at the LC0 github site and it was still on LC0 v0.27.0 (Feb 2021!!) as of very late last night (1:00am?) I was also looking at some old pages on the Chessengines diary site....when I refreshed the Chess Engines Diary site and the Github site this afternoon.....There it was...WOW...Talk about "Random Activity"... :) :wink:

https://github.com/LeelaChessZero/lc0/r ... 0.28.0-rc1


"Multigather is now made the default (and also improved). Some search settings
have changed meaning, so if you have modified values please discard them.
Specifically, max-collision-events, max-collision-visits and
max-out-of-order-evals-factor have changed default values, but other options
also affect the search. Similarly, check that your gui is not caching the old
values.
Performance improvements for the cuda/cudnn backends.
Support for policy focus during training.
Larger/stronger 15b default net for all packages except android, blas and dnnl
that get a new 10b network.
The distributed binaries come with the mimalloc memory allocator for better
performance when a large tree has to be destroyed (e.g. after an unexpected
move).
The legacy time manager will use more time for the first move after a long
book line."
The --preload command line flag will initialize the backend and load the
network during startup.
A 'fen' command was added as a UCI extension to print the current position.
Experimental onednn backend for recent intel cpus and gpus.


ps..Big Thanks To Chessenginesdairy...
0.27.0 is still the latest official release.

0.28.0 rc1 is marked as a pre-release.
gbanksnz at gmail.com
ehas
Posts: 7
Joined: Fri Jan 04, 2019 1:30 pm
Full name: Eric Hughes Santiago

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by ehas »

Just reporting

Running it on
AMD Ryzen 3700
Windows 10 Pro
GPU Asus NVIDIA 1660 Ti

Usually LC0 NVIDIA CUDNN runs faster on 1660 Ti than NVIDIA CUDA on my system for LC0 Version 27.0

LC0 Version 28 RC1 CUDNN crashes in my system but using CUDA it does not.

Hope they can look into this.

Thanks.
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cc2150dx
Posts: 325
Joined: Sat Nov 30, 2013 9:51 am
Location: Canada
Full name: Jason Coombs

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by cc2150dx »

Posted 2 days ago. This might or might not fix your issue https://ci.appveyor.com/project/LeelaCh ... /artifacts
ehas
Posts: 7
Joined: Fri Jan 04, 2019 1:30 pm
Full name: Eric Hughes Santiago

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by ehas »

Thank you.

It did fix the issue. The lco.exe found in the site you posted is not crashing anymore.
supersharp77
Posts: 1242
Joined: Sat Jul 05, 2014 7:54 am
Location: Southwest USA

Re: LC0 v0.29.0 Git Development

Post by supersharp77 »

Checked the appVeyor Site......Binary shows as LC0 v0.29.0 Git"""" Development...Tested and Working Fritz GUI :) :wink:


https://ci.appveyor.com/project/LeelaCh ... /artifacts LC0 (Blas)
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Ozymandias
Posts: 1534
Joined: Sun Oct 25, 2009 2:30 am

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by Ozymandias »

Anyone has an idea when the final release comes out?
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CMCanavessi
Posts: 1142
Joined: Thu Dec 28, 2017 4:06 pm
Location: Argentina

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by CMCanavessi »

Ozymandias wrote: Fri Jul 30, 2021 1:44 pm Anyone has an idea when the final release comes out?
You can check here: http://lc0.org/timeline

There are still several issues that need to be fixed/addressed.
Follow my tournament and some Leela gauntlets live at http://twitch.tv/ccls
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Ozymandias
Posts: 1534
Joined: Sun Oct 25, 2009 2:30 am

Re: LC0 v0.28.0 rc-1 Is Out! Breaking News!

Post by Ozymandias »

Nice.

Half a dozen blocking issues. Not soon then.