Getting error trying to profile an application on the Jetson Xavier from a Linux Host Nsight Compute

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

I set up a remote connection and the profiling started, but then stops with the following output on the host Nsight Compute:

Launching: /home/poseidonas/.cache/nvidia/nsight-compute/target/linux-desktop-t210-a64/ncu
Process launched

==PROF== Connected to ncu-ui at 127.0.0.1:50152.

==PROF== Connected to process 7972 (/home/poseidonas/learningCuda/addVectors)

==ERROR== An error was reported by the counter measurement library:
==ERROR== Failed to initialize the profiler: LibraryNotLoaded. Check that a compatible driver library is loaded.
==PROF== Trying to shutdown target application

==ERROR== An error was reported by the counter measurement library:
==ERROR== Failed to initialize the profiler: LibraryNotLoaded. Check that a compatible driver library is loaded.
==PROF== Trying to shutdown target application

==ERROR== The application returned an error code (9).

I do not understand from the above error what I should do to fix it.
Please help.

3

Hi,

Nsight profiler needs root authority on Jetson.
Could you try to run it with sudo ...?

Thanks.

4

I have already started it with sudo! That’s not the problem. This problem occurs when the ncu binary started on the Jetson through the UI on the host machine.

5

Hi,

Could you share a screenshot of the error reported in the ncu UI on the Linux host?
Thanks.

6

Hey I solved the problem. I had to set sudo sysctl fs.protected_regular = 1 on my device machine.