Nsight systems failed to start profiling: Agent worker is not found

Developer Tools Nsight Systems Profiling x86 Windows Targets
1

Hi! I am new to Nsight-System and I tried to run some sample code.

I launched the GUI on Windows. I used my Windows as the host and use local connection as the target. Then I tried to profile vectorAdd downloaded from the CUDA github page. When I clicked the start botton, the error occurred like below:

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image1366×844 31.7 KB

The GUI looks like:

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image1366×844 40.4 KB

I tried to restart and redo the previous steps but nothing has changed. Could you give me any suggestion? Any suggestions will help!
My device settings:
OS: Windows 11
Nsight-system version: 2025.6.1
CUDA version: 11.5
GPU version: NVIDIA GeForce RTX 3050
Driver version: 572.83

2

@dofek to respond.

3

Hi,

  1. Could you confirm if Nsight Systems is allowed to run with administrator privileges when connected to the agent? This is often required for proper profiling.

  2. Is this the first time you installed Nsight Systems?

    • If not, I recommend deleting the NVIDIA folder located in %temp%\nvidia to clear any cached data.

  3. If the error persists after allowing admin privileges and deleting the NVIDIA folder, please try reinstalling Nsight Systems.

Let me know if these steps help or if the issue continues after trying them.