Please help me! How to run your code without gpu?

[LelandYan]

Please help me !
I do not have GPUs, so I want to run your code without GPUs. However, I find that I set the num_gpus and num_gpus_per_worker zero, your code will have errors.

1. I want to know your code python version.
2. I want to how to run your code without GPUs
3. I want to how to understand your code.