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Baptiste Jonglez authored
Both cuda and prometheus have services that need to start only on machines with GPU. They rely on /dev/nvidia0 being present on such machines to detect the presence of GPU. However, /dev/nvidia0 is not created when the nvidia driver is loaded, but only when `nvidia-smi` is first run. The new service calls `nvidia-smi` once during boot to create /dev/nvidia0 and thus to allow the other services to start. On machines without GPU, `nvidia-smi` will fail, so we ignore its exit code.
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