You can naturally compile you own software products and libraries, in :
Example: you need to install openmpi-1.6.5, with GNU compilers, on /shared:
$ mkdir -p /shared/compilers/openmpi/1.6.5/gnu $ ./configure --prefix=/shared/compilers/openmpi/1.6.5/gnu <all needed options> $ make && make install
To do so, since the hardware, OS and installs are very different between master nodes and computing nodes, to compile your stuffs (software products, libraries, etc.), you just have to open an interactive session and use compilers and libraries of your choice (Intel compilers from Modules, GNU pre-installed compilers, etc.).