In addition to the software provided on the cluster, you are welcome to install your own software.
Before installing software yourself, first check if it is already provided on the cluster.
If you are installing software exclusively for your use, you can install it in your Home directory (/public/home/<username>).
If you will be doing a lot of software installation, you may want to add sub-directories for sources (source files downloaded), softwares (the installed software), scripts (if you want to document and routinize your installation process using a script – which is recommended).
In any case, be cognizant of space limitations in your Home directory (see quota).
Xin Zhang has ever installed several packages. You can check this part of his blog for instruction.