could you please tell me how to train it on the GPU

[moyi7712]

thanks for your nice work but Chainer is the first time use it

[satoshi-kosugi]

I think you don't have to use a GPU. The actor-critic algorithm is trained on a single multi-core CPU instead of a GPU. Please refer to the paper [1]. [1] MNIH, Volodymyr, et al. Asynchronous methods for deep reinforcement learning. In ICML. 2016.