kaiyuyue:

s is the easi


According to the tutorial, it’s better to use environment variable 
torch.cuda.set_device(device)

Sets the current device.

Usage of this function is discouraged in favor of device. In most cases it’s better to use CUDA_VISIBLE_DEVICES environmental variable.

Parameters:	device (torch.device or int) – selected device. This function is a no-op if this argument is negative.