Handle --gpus flag using CDI #4617
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AkihiroSuda
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Nov 26, 2025
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Thanks, does this need any change on https://github.com/containerd/nerdctl/blob/main/docs/gpu.md ?
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I have updated this as well in the latest revision.
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Yes, most likely. I will look at updating the docs too.
**Update**: Updated.
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This change switches to using CDI to handle the --gpus flag. This removes the custom implementation that invoked the nvidia-container-cli directly. This mechanism does not align with existing implementations. Signed-off-by: Evan Lezar <[email protected]>
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ChengyuZhu6
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Nov 27, 2025
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LGTM. I have tested on my machine, and it works.
AkihiroSuda
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Nov 27, 2025
| nerdctl run -it --rm --gpus 'device=GPU-3a23c669-1f69-c64e-cf85-44e9b07e7a2a' nvidia/cuda:12.3.1-base-ubuntu20.04 nvidia-smi | ||
| ``` | ||
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| Note that although `capabilities` options may be provided, these are ignored when processing the GPU request. |
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| Note that although `capabilities` options may be provided, these are ignored when processing the GPU request. | |
| Note that although `capabilities` options may be provided, these are ignored when processing the GPU request since nerdctl v2.3. |
AkihiroSuda
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Nov 27, 2025
| - `nvidia-container-cli` | ||
| - containerd relies on this CLI for setting up GPUs inside container. You can install this via [`libnvidia-container` package](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/arch-overview.html#libnvidia-container). | ||
| - The NVIDIA Container Toolkit | ||
| - containerd relies on the NVIDIA Container Toolkit to make GPUs usable inside a container. You can install the NVIDIA Container Toolkit by following the [official installation instructions](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html). |
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| - containerd relies on the NVIDIA Container Toolkit to make GPUs usable inside a container. You can install the NVIDIA Container Toolkit by following the [official installation instructions](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html). | |
| - containerd relies on the NVIDIA Container Toolkit to make GPUs usable inside a container. You can install the NVIDIA Container Toolkit by following the [official installation instructions](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html). | |
| > [!NOTE] | |
| > The description in this section applies to nerdctl v2.3 or later. | |
| > Users of prior releases of nerdctl should refer to <https://github.com/containerd/nerdctl/blob/v2.2.0/docs/gpu.md> |
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Maybe the note should be rather moved to the top of the documentation
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This PR can fix the issue #4621 |
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This change switches to using CDI to handle the --gpus flag. This removes the custom implementation that invoked the nvidia-container-cli directly. This mechanism does not align with existing implementations.
See also:
ctr: Map ctr --gpus requests to NVIDIA CDI device requests containerd#12537docker: Use cdi device driver to handle nvidia --gpus requests moby/moby#50228