opencl support on google colab broken

[haesleinhuepf]

pyclesperanto-prototype doesn't work anymore on google colab

https://forum.image.sc/t/stackview-pyclesperanto-prototype-demo-on-colab-cant-use-gpu/80145/4

[haesleinhuepf]

workaround:

cle.select_device("cupy")

[haesleinhuepf]

One can also try this:

!sudo apt update
!sudo apt purge *nvidia* -y
!sudo apt install nvidia-driver-530 -y

Source: https://stackoverflow.com/questions/76336964/opencl-not-detecting-t4-hardware-accelerator-in-colab/76461740#76461740

[StRigaud]

The last options works with some minor modification and ... time 😞

!sudo apt update
!sudo apt purge *nvidia* -y
!sudo DEBIAN_FRONTEND=noninteractive apt install nvidia-driver-530 -y

This will take quite some time, mainly the last cmd as it request a reboot which I do not know how it is managed behind but ... works.

Possible issues:

• possible need to run cmd in separated cells
• possible need to trash and make a new colab if process fail in the middle