You can use pip to install python packages within this environment.
To start a Jupyter notebook on hal-dgx
on hal-dgx:
source python3-virtualenv/bin/activate
pip install jupyter # this needs to be done only once
jupyter notebook # this will start the jupyter server
on your own computer:
# This opens a connection to the hal-dgx.ncsa.illinois.edu Jupyter server, and
# forwards any connection to port 8888 on the local machine to port 8888 on hal-dgx.ncsa.illinois.edu.
ssh -L 8888:localhost:8888 hal-dgx.ncsa.illinois.edu
Finally, on your own computer, open web browser and point it to the address you see after running 'jupyter notebook' on hal-dgx, something like http://localhost:8888/?token=...