Should we close DDP accelerator on while training with 1 GPU?

[aartykov]

Hi,

Should we set the " trainer_config["accelerator"] = "ddp" " part to None while training with only 1 GPU?

[WhiteZz1]

I ran the main.py script in only one GPU environment, and the following error occurred
ValueError: You selected an invalid accelerator name: accelerator='ddp'. Available names are: cpu, cuda, hpu, ipu, mps, tpu.

Are our problems the some ? @artykov1511 @justinpinkney

[justinpinkney]

hmmm, this seems like maybe a pytorch lightning version issue? I used ddp should work fine for 1 gpu on the version i used