Allowing new users to access GPU in Tensorflow on Xavier

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
#1

Hi,

I created a new user account and am trying to deploy a TensorFlow (TF) model.

However, if I run the python program normally, I get the error:

2019-02-04 17:43:41.142183: E tensorflow/stream_executor/cuda/cuda_driver.cc:300] failed call to cuInit: CUDA_ERROR_NO_DEVICE: no CUDA-capable device is detected
2019-02-04 17:43:41.142262: I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:150] kernel driver does not appear to be running on this host (jetson-0423018054844): /proc/driver/nvidia/version does not exist
Traceback (most recent call last):
  File "/home/projects/SANATA/.venv/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1334, in _do_call
    return fn(*args)
  File "/home/projects/SANATA/.venv/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1317, in _run_fn
    self._extend_graph()
  File "/home/projects/SANATA/.venv/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1352, in _extend_graph
    tf_session.ExtendSession(self._session)
tensorflow.python.framework.errors_impl.InvalidArgumentError: No OpKernel was registered to support Op 'TRTEngineOp' with these attrs.  Registered devices: [CPU,XLA_CPU,XLA_GPU], Registered kernels:
  device='GPU'

This error goes away if I run the program using sudo.

I would like to give the user the ability to access the GPU w/o/ sudo. How could I do this?

Also, I tried changing permissions for /dev/nvidia* to 777 as some answers suggested, but still no luck:

ls -l /dev/nvidia*
crwxrwxrwx 1 root root 195, 255 Feb  4 17:23 /dev/nvidiactl
#2

Not sure, but using GPU may require the new user to belong to group video. Maybe you would also have to set back nvidiactl to group video, or have your new user to belong to group root.

#3

Thank you @Honey_Patouceul.

running sudo usermod -a -G audio,video <UN> fixed the problem

#4

Help please how could I perform that command in windows? plss is that I get the same problem

#5

The command to add a user to a group has to be done on the Jetson. There is no equivalent in Windows (even the file systems for Windows lack a “group”). You can log in to a Jetson from Windows via ssh or serial console and perform those.

#6