Downgrade pytorch to older version

1

Due to compatibility issues I need to use an old version of pytorch (v1.5.0) instead of the much more recent v1.9.0 one which I get by default.

I successfully installed the package (v1.5.0) on CERNBOX and then tried to open a new SWAN session with “$CERNBOX_HOME/.local/lib/python3.8/site-packages” entered into the session configuration menu as described here: Install packages in CERNBox - Help .

However, when checking my pytorch version in the new SWAN session I still get v1.9.0 and clearly my approach is incorrect.

Any advice on how to correctly go about this?

2

Hello,

Did you define (and select when starting your SWAN session) an environment script that prepends $CERNBOX_HOME/.local/lib/python3.8/site-packages to the PYTHONPATH?

Cheers,

Enric

3

If yes, I would double check what’s the PYTHONPATH when you are in the notebook, it should have the prepended directory.

4

Thanks very much for your reply.
Do you have an example of an environment script for this purpose? I am not very familiar with building them and I think mine is incorrect.

5

Hello,

Just a script that contains:

export PYTHONPATH=$CERNBOX_HOME/.local/lib/python3.8/site-packages:$PYTHONPATH

should do the trick.

6

Hi,
Thanks very much, it looks like that works!

It appears I now have problems with the package installation, but I think that is unconnected and my question has been answered.