I want to run Nerfstudio in a multi-GPU environment.
Multi gpu is not possible in the Windows environment, so I installed WSL and installed nerfstudio in Ubuntu 22.04.
--machine.num-devices 2
I confirmed that it can be trained using the ‘–machine.num-devices 2’ option.
It takes more time to do –machine.num-devices 2 than –machine.num-devices 1. What is the problem?
-machine.num-devices 2
Train Iter-> 120ms
ETA -> 4h
Train Rays / Sec -> 70K
-machine.num-devices 1
Train Iter-> 55ms
ETA -> 1h 30min
Train Rays / Sec -> 75K
Result of checking nvidia-smi
Although both use memory
The process is only being executed by GPU number 1.
How can I utilize multi GPU?
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