Feature: Install and activate RTNeuron 3.0 in BB5

[alex4200]

Install and activate RTNeuron 3.0 in BB5.

If that has been done, testing can continue on the new system...

[hernando]

The application is ready for deployment and there's a PR for that. However, there is an issue with the Nvidia driver that I can't resolve myself.

[hernando]

The application has been finally deployed, however I didn't have the time to look into a critical bug in the QML GUI for opening circuits.

The module to load is nix/viz/rtneuron

[alex4200]

@hernando

I tried the following steps to start rtneuron on BB5:

1. ssh adietz@bbpv1.epfl.ch
2. salloc --account=proj64 --partition=interactive --gres=gpu:1 --startx
3. module load nix/viz/rtneuron
4. rtneuron

But I got an error ImportError: No module named site.

[hernando]

Looks like an environment problem. Try doing module purge before load.

There are some other issues, once is something new.

• Once you have the allocated node, you have to connect to it from another console with vglconnect. Another option to simplify all the steps is to use vizsh, just sudo apt-get install it in your desktop.
• Then you have to launch rtneuron with vglrun (I'd like to get rid of vglrun, but it doesn't seem to be trivial with nix)
• Last, but not least, you need to add --eq-layout Simple to the command to start rtneuron. This is a side effect of a configuration detail in the cluster that needs to be addressed.

[alex4200]

I tried to do

vglconnect r2i3n0.bbp.epfl.ch vglconnect adietz@r2i3n0.bbp.epfl.ch

from my local computer, but in both cases the login/connect seems to hang. Am I missing something?

[hernando]

First time ssh connections to the nodes take a long time sometimes (~ 1 min), just be patient. I also drop the domain name part and use the hostname only, but I don't know if that makes a difference.

[alex4200]

Login and running on BB5 now works.