NVIDIA Persistenced Daemon error

I'm trying to install CUDA 10.1 on Ubuntu 18.04 using guide from In step 7.2.1 Install Persistence Daemon, when I execute command

/usr/bin/nvidia-persistenced --verbose

I got an error:

$ /usr/bin/nvidia-persistenced --verbose nvidia-persistenced failed to initialize. Check syslog for more details.

Log from the /var/log/syslog file:

May 27 19:49:42 Azurite nvidia-persistenced: Verbose syslog connection opened
May 27 19:49:42 Azurite nvidia-persistenced: Directory /var/run/nvidia-persistenced will not be removed on exit
May 27 19:49:42 Azurite nvidia-persistenced: Unable to access /var/run/nvidia-persistenced: Permission denied
May 27 19:49:42 Azurite nvidia-persistenced: Shutdown (6802)

Result from nvidia-smi:

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.59 Driver Version: 440.59 CUDA Version: 10.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce 840M Off | 00000000:08:00.0 Off | N/A |
| N/A 52C P0 N/A / N/A | 151MiB / 2004MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 2650 G /usr/lib/xorg/Xorg 76MiB |
| 0 2805 G /usr/bin/gnome-shell 73MiB |
+-----------------------------------------------------------------------------+

Result from nvcc -V

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Fri_Feb__8_19:08:17_PST_2019
Cuda compilation tools, release 10.1, V10.1.105

Is there something wrong with my CUDA Toolkit installation? Thank you. In logs app:

Sender: nvidia-persiste
Message: Failed to lock PID file: Resource temporarily unavailable

When I run with sudo

May 27 20:20:52 Azurite nvidia-persistenced: Verbose syslog connection opened
May 27 20:20:52 Azurite nvidia-persistenced: Directory /var/run/nvidia-persistenced will not be removed on exit
May 27 20:20:52 Azurite nvidia-persistenced: Failed to lock PID file: Resource temporarily unavailable
May 27 20:20:52 Azurite nvidia-persistenced: Shutdown (8059)

NOTE: my laptop passed 7.2.3.3. Running the Binaries on deviceQuery and bandwidthTest

1 Answer

I've just checked using htop and there's one running with PID 1304 and Command /usr/bin/nvidia-persistenced --user nvidia-persistenced --no-persistence-mode --verbose. Guess everything is OK, thank you.