2020.2 Stack

For the 2020.2 stack, there were some issues with building R packages as separate packages so a single prefix installation of R packages was done for the 2020.2 stack. Those packages have been listed in a separate table below. There are a couple of exceptions though as the r-rmpi and r-snow packages are still separately loaded modules. The individual r packages can still be discovered with module spider and module avail as they are listed as module extensions. However, those packages will be loaded along with the r module rather than individually as separate packages.