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NVML Shared Library Not Found#

Info (NVML)

NVML Error: NVML Shared Library Not Found - GPU usage metrics may not be reported.

Issue: Your GPU consumption is not being logged.

It means one of the following:

  • There are no NVIDIA GPUs on your machine.
  • Your NVIDIA NVML library is not installed or configured properly.


For how to install and configure NVML, see the NVIDIA Developer site .

Logging GPU on Windows

Neptune looks for the nvml.dll file in the standard locations:

  • C:\Program Files\NVIDIA Corporation\NVSMI\nvml.dll
  • C:\Windows\System32\nvml.dll

Check that your NVML installation is correct and that you have the nvml.dll file in one of those locations.

Alternatively, you can set a custom location for nvml.dll by setting the NVML_DLL_PATH environment variable.

Getting help