ci: switch to nvidia runner for gpu dependent jobs#277
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The current runner for the gpu jobs is self-hosted and has gone unmaintained for some time. Now, github provides some larger runners with GPUs that we can use instead for easier maintenance. This PR attempts to use them.
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The generic nvidia runner does not have nix installed by default. This adds a step to install it using a cachix action (single-user).
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fidelcanojr
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May 29, 2026
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Rationale for this change
The current runner for the gpu jobs is self-hosted and has gone unmaintained for some time. Now, github provides some larger runners with GPUs that we can use instead for easier maintenance. This PR attempts to use them.
What changes are included in this PR?
Any job previously using the public blitzar runner now uses
nvidia-nc4as-t4.Are these changes tested?
They will be tested by a successful CI run on this PR.