Hi,
it seems that Google in fact used TPUs for AlphaGo rather than GPUs:
https://cloudplatform.googleblog.com/2016/05/Google-supercharges-machine-learning-tasks-with-custom-chip.html
It's be interesting to know what the speedup factor against, say,
Tesla K40 is. In the Nature paper, they talk about GPUs, but they
could have switched to TPUs for training only after then Fan Hui matches.
Petr Baudis
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