FWIW, I have an NVLink and two RTX 3090s running Ubuntu, and I haven’t been able to get the NVLink to work.
When I run ‘nvidia-smi nvlink -c’ I get just:
GPU 0: GeForce RTX 3090 (UUID: GPU-f634707c-5e3b-b685-ad8c-30e3b916f204)
GPU 1: GeForce RTX 3090 (UUID: GPU-17056259-f618-8028-163a-0f62bf47aae7)
When I run ‘nvidia-smi nvlink -s’ I see:
GPU 0: GeForce RTX 3090 (UUID: GPU-f634707c-5e3b-b685-ad8c-30e3b916f204)
Link 0: <inactive>
Link 1: <inactive>
Link 2: <inactive>
Link 3: <inactive>
GPU 1: GeForce RTX 3090 (UUID: GPU-17056259-f618-8028-163a-0f62bf47aae7)
Link 0: <inactive>
Link 1: <inactive>
Link 2: <inactive>
Link 3: <inactive>
Guidance would be great.