When using GPU, should --runtime be added or not?

[xyzzen]

Two machines with NVIDIA GPUs are running different environments: one with containerd version 1.6.39 and the other with version 2.1.4. In version 1.x, nerdctl run requires the --runtime option to recognize the GPU environment, while version 2.x does not. Is this controlled by nerdctl or by the NVIDIA GPU?

[xyzzen]

The specific command is: nerdctl run --privileged --net host --runtime nvidia-container-runtime --gpus all -dt 'images:version'
The parameters that are different are: --runtime nvidia-container-runtime

[AkihiroSuda]

nerdctl run requires the --runtime option to recognize the GPU environment

No, nerdctl run never required the --runtime option.

• Oldest release with the GPU support: https://github.com/containerd/nerdctl/blob/v0.9.0/docs/gpu.md
• Latest release: https://github.com/containerd/nerdctl/blob/v2.2.1/docs/gpu.md