Ensure CUDA devices are usable before training#585
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This LGTM. I'm not worried about RTX20xx and older devices for now, I imagine we have a hundred other compatibility issues with them. We can return to this later if we decide to start supporting that hardware.
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Did some testing on some different cards. As expected, it fails on T4s (Turing), but succeeds on H100s, A100s, L4s |
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Closes #550
Adds a CUDA smoke test that validates that the requested devices are functional before training begins
The test is designed to trigger cuDNN runtime compilation to catch issues early. Credit to @arilotter for the core test logic.
One question potentially for discussion is whether or not this gates out older cards. I think it should run fine on even smaller Turing cards, but anything older it might not