LCZero update (2)

[CMCanavessi]

New official version released:

https://github.com/glinscott/leela-ches ... s/tag/v0.4

Finally includes a windows build with all the dlls, and a working windows CPU-Only build as well

[Nay Lin Tun]

What is the estimated efficiency of CPU version, 20%, 30% or higher than that?

[carldaman]

New official version released:

https://github.com/glinscott/leela-ches ... s/tag/v0.4

Finally includes a windows build with all the dlls, and a working windows CPU-Only build as well

Thanks a lot, this is actually working!

[jpqy]

Thanks!

Put the windows version into a folder..click on LCZero.. and i get just a flashing command prompt window ,open,close?

Still not working..

JP.

[Laskos]

New official version released:

https://github.com/glinscott/leela-ches ... s/tag/v0.4

Finally includes a windows build with all the dlls, and a working windows CPU-Only build as well

I have a weak video card, but I didn't expect that:
http://www.talkchess.com/forum/viewtopi ... 45&start=5

CPU version is performing much better. Is LCZero using the GPU card properly?

[jkiliani]

If you have cutechess_cli or some other software that can conduct chess engine tournaments, could you run a competition between the CPU and GPU versions at equal playouts? There has been talk on Github that GPU version is producing large error due to OpenCL calculations sometime, it would be cool if you could provide data on that (and share on Github).

Your tournament so far is a good start, but just means that this GPU just doesn't work well for you. We'd need equal playout settings (e.g. 800) to make this meaningful in evaluating whether the GPU calculation errors hurt playing strength a lot.

[smatovic]

Maybe it is time for Deep Green....

https://www.anandtech.com/show/12587/nv ... -only-400k

400K Bucks anyone?

--
Srdja

PS: and some power plant nearby?

[Guenther]

New official version released:

https://github.com/glinscott/leela-ches ... s/tag/v0.4

Finally includes a windows build with all the dlls, and a working windows CPU-Only build as well

I have a weak video card, but I didn't expect that:
http://www.talkchess.com/forum/viewtopi ... 45&start=5

CPU version is performing much better. Is LCZero using the GPU card properly?

I had a very different experience with the (finally) working cpu version.
Here it was around 4 times slower on one thread despite having a cheap
gpu card. May be I create exact numbers again. Currently I have already
deleted the cpu version after my measurement.

[Guenther]

Ok I reinstalled it and recalculated, which was interesting anyway after my earlier suggestion to add some gpu benchmark page.

https://github.com/glinscott/leela-chess/issues/203

I had set up an early draft at google docs already and used the latest suggestion from error 23 which runs a traing game under exact conditions. (generalized now to cpu and gpu benchmarks)

Code: Select all

lczero -w 0b93ff053467f47c57c2182e144a45c9633249519b7297c4f41fc07b30a88dd8 -t1 --start="train 1 1" -q -s 1

The result is that my gpu gives 3,32 faster average nps than my cpu.

[Joost Buijs]

New official version released:

https://github.com/glinscott/leela-ches ... s/tag/v0.4

Finally includes a windows build with all the dlls, and a working windows CPU-Only build as well

I have a weak video card, but I didn't expect that:
http://www.talkchess.com/forum/viewtopi ... 45&start=5

CPU version is performing much better. Is LCZero using the GPU card properly?

I had a very different experience with the (finally) working cpu version.
Here it was around 4 times slower on one thread despite having a cheap
gpu card. May be I create exact numbers again. Currently I have already
deleted the cpu version after my measurement.

Over here the CPU only version does about 400 n/s on a single core (Broadwell 3.8 GHz.), when I use my cheap GT-720 GPU with 192 Cuda cores this figure drops down to 250 n/s. On my GTX-1080Ti it runs at ~3500 n/s (when running 2 instances of the client).

I have the feeling that the new v4 client has problems uploading the games. This morning I let v4 run for some time, it produced about 30 games but only a few of them appear in the server statistics. Running the client with -debug doesn't give any extra information at all, so I really don't know what is going on.