Nvidia gpu serial numbers

For what it is worth my Quadro GPU also has a serial number reported by nvidia-smi.

I don’t know whether GeForce cards have serial numbers, but the fact that they are made by multiple third manufacturers could mean that serial numbers (if they exist) are an unreliable means of identification unless NVIDIA were to coordinate the serial number space between vendors (which seems unlikely).

[Later:] Looking a bunch of nvidia-smi output reported on the internet, it seems that on GeForce boards, nvidia-smi always reports the serial number as N/A.

Isn’t the UUID supposed to fill the role of globally unique identifier? If the goal here is something like cluster management, I would give that a try.