google colab GPU processing become very slow after keras and tensorflow upgrade

Question

I've upgrade my tensorflow and keras with this code:

!pip install tf-nightly-gpu-2.0-preview

Now every epoch of model learning cost 22 min which was 17 sec before this upgrade!!! I did downgrade tensorflo and keras but it did not help!

Answer 1

You can reset your backend using the Runtime -> Reset all runtimes... menu item. (This is much faster than kill -9 -1 , which will take some time to reconnect.)

Answer 2

Ok. It's solved. just restore everything in colab by this code:

kill -9 -1