SIESTA performs efficient electronic structure calculations and ab initio molecular dynamics simulations of molecules and solids.
To see what versions of SIESTA are available type
module avail Siesta
To see what other modules are needed, what commands are available and how to get additional help type
module help Siesta
To use SIESTA, include a command like this in your batch script or interactive session to load the SIESTA module:
module load Siesta
Be sure you also load any other modules needed, as listed by the
module help Siesta command.