CRAY XE6 Environment

HWW systems uses environment modules, a package for managing user environments. Software such as compilers, libraries, tools and some widely used application codes are available to users via modules. Thus, in order to use a particular version of a particular piece of software you must first load its module. On log-in to the system a default collection of modules are available.

• You can inspect which modules you have loaded currently by the command:

  module list

• In order to inspect which modules are available to use, you can issue the command

  module avail

• If you want to swap one currently loaded module for another that is not,

  module swap PrgEnv-pgi PrgEnv-gnu

  for example swaps the currently loaded CRAY PGI Programming version PrgEnv-pgi for CRAY own programming version PrgEnv-cray.

For more details on using modules see CRAY: Using Modules or Module commands.