.. testsetup:: *
from pytorch_lightning.trainer.trainer import Trainer
Single GPU Training
===================
Make sure you are running on a machine that has at least one GPU. Lightning handles all the NVIDIA flags for you,
there's no need to set them yourself.
.. testcode::
:skipif: torch.cuda.device_count() < 1
# train on 1 GPU (using dp mode)
trainer = Trainer(gpus=1)