So I was trying the Discovery node. I am an R user and I was used to just load R by sourcing /usr/usc/R… so I was quick to realize that that was not going to be the case. Loading modules sounds like a nice idea, but as soon as I tried module load r it said it did not have that module available:
[vegayon@e21-15 sifter]$ module load r/4.0.0
Lmod has detected the following error: These module(s) or extension(s) exist but cannot be loaded as requested: "r/4.0.0"
Try: "module spider r/4.0.0" to see how to load the module(s).
If there are other library dependencies for R packages, like libxml2 for example, then you will need to load those modules as well.
You don’t necessarily have to specify the version numbers, but it helps document the job and computing environment. The defaults may change over time too.