Using Modules Using Modules SGI workstaions at ND are configured to use modules for controling the enviroments used to access software from AFS space. The use of modules allows users greater control over which programs and what versions of those programs are available for use.
Modules works by bundling all the setup routines for a program into a single modulefile .
These modulefiles can then be loaded or unloaded through the module command. This modulefile allows users to access many commonly used programs like Mathematica and FrameMaker. Modulefiles are usually grouped in directories. For instance, the mathematica directory contains two modulefiles, 3.0 and 4.0 that correspond to different versions of the Mathematica program. This is useful when switching between different versions of a program for testing.