Software Environment Environment Modules  ( Lmod )  are  used to configure your environment for many pieces of installed software on greenplanet, including compilers and MPI environments. To see a list of available packages, type: "ml spider" ml spider To load a specific package/version, type: ml modulename/versionnumber . The 2020.1 release of the Intel Compilers is: Type: "ml intel/2020.1" ml intel/2020.1 To see which modules are currently loaded: Type: "ml" ml If you wish to make your settings default for all login sessions and jobs, place your ml commands in ~/.bashrc.  If you want to use them just in a specific job, add them to the job script. Some pieces of software may be installed to /sopt on the cluster (shared opt) and not be configured in modules. Other packages that were modules previously may now be provided by the OS. Note: it is highly recommended to a have ml purge at the beginning of the job execution portion of your slurm submission script. This clears out any accidental environments picked up from your login shell.