top | item 28766244

(no title)

cbutner | 4 years ago

Yes, each bot uses a v3-8 Cloud TPU VM, and tries to be constantly playing a game. The search tree is also very memory-hungry. And right now it's also using the Python API for TensorFlow, which is likely wasting a lot of potential.

Lots of room for improvement!

discuss

lemonade5117|4 years ago

Could using something like AlphaZero.jl make it more efficient?

https://github.com/jonathan-laurent/AlphaZero.jl

cbutner|4 years ago

The engine itself is in C++, but it calls in to TensorFlow via Python as a portability/distribution vs. performance trade-off.

Next steps could be using one of Lc0's backends for GPU scenarios, or taking the other side of the trade and using the C++ API for TPU.

There's also your typical CPU and memory optimizations that could be made - some baseline work there but not targeted.