Question
It was good before. After restarting the computer running program, this error is reported:
failed call to cuInit: CUDA_ERROR_UNKNOWN: unknown error
retrieving CUDA diagnositic information for host: ...
Then it runs with the old slow CPU.
environment
Ubuntu 20.04TensorFlow 2.5cudatoolkit 11.2cudnn 8.1
solve
The probability is that the graphics card driver is stained with something.
Because I happened to update the system (Ubuntu) automatically before, I probably moved some NVIDIA files or something. Then I can’t restart.
Then I opened the Software Updater, completely updated it, restarted it, and finished it.
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