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glinscott / leela-chess

**MOVED TO https://github.com/LeelaChessZero/leela-chess ** A chess adaption of GCP's Leela Zero
http://lczero.org
GNU General Public License v3.0
760 stars 299 forks source link

"Leela C0" very often loses game on my HW due to lack of time #588

Open Yemmi76 opened 6 years ago

Yemmi76 commented 6 years ago

I see this issue only with time control like this: 1min + 2sec, 1/2min + 5sec etc. I use only "GPU" version of "Leela C0". No issue for any time control without seconds addition. For my HW environment this issue happens in about 3 out of 4 games (and sometimes in winning positions). Issue is actual for v0.8, v0.9 and v0.10 releases.

Below is output of "lichess-bot.py" for my HW.

--- Process Used. Total Queued: 0. Total Used: 1 Using 4 thread(s). Detecting residual layers...v2...192 channels...15 blocks. Initializing OpenCL. Detected 1 OpenCL platforms. Platform version: OpenCL 1.2 CUDA 9.1.84 Platform profile: FULL_PROFILE Platform name: NVIDIA CUDA Platform vendor: NVIDIA Corporation Device ID: 0 Device name: GeForce GTX 650 Device type: GPU Device vendor: NVIDIA Corporation Device driver: 391.35 Device speed: 1110 MHz Device cores: 2 CU Device score: 1112 Selected platform: NVIDIA CUDA Selected device: GeForce GTX 650 with OpenCL 1.2 capability. Loaded existing SGEMM tuning. Wavefront/Warp size: 32 Max workgroup size: 1024 Max workgroup dimensions: 1024 1024 64 BLAS Core: Sandybridge info string Found 0 wdl tablebases info string Found 0 dtz tablebases Using 4 thread(s).

ASilver commented 6 years ago

I'm about 300 games deep into a match at 1m+1s (v10 id223 vs id253), and have not seen a single loss on time.

Yemmi76 commented 6 years ago

I play with "Leela C0" (v10 id279) as BOT on lichess.org with different other BOTS (most of them use "Stockfish" I think) and I see this issue regularly.