Physnodes - 2) Modules
Modules and the user environmentÂ
 Introduction
This section contains details about the user environment and how it can be controlled via the module command. The modules
Module structure
Modules are organised by categories such as applications, compilers and libraries, with a number of applications and software packages in each category.Â
Working with modules
module avail
Use the command module avail to list available modules.
-bash-4.1$ module avail
----------------------- /opt/yarcc/Modules/applications ------------------------
gaussian/G09Â Matlab/R2014a R/2.15.3Â Â Â Â Â R/3.1.0
------------------------- /opt/yarcc/Modules/compilers -------------------------
python/2.7.6 python/3.4.0
------------------------- /opt/yarcc/Modules/libraries -------------------------
fftw/2.1.5 fftw/3.3.3
---------------------- /opt/yarcc/Modules/infrastructure -----------------------
sge/8.1.6 SGE/8.1.6
module load
To load a module type module load <module name>. You can append a version number to load a specific instance of a package. Note the <tab> key can be used to complete the command.
-bash-4.1$ module load sge
-bash-4.1$ module load R/3.1.0
module list
To list currently loaded modules type module list
-bash-4.1$ module list
Currently Loaded Modulefiles:
 1) sge/8.1.6  2) R/3.1.0
module unload
To unload a module use the unload command
-bash-4.1$ module list
Currently Loaded Modulefiles:
 1) sge/8.1.6  2) R/3.1.0
-bash-4.1$ module unload R/3.1.0
-bash-4.1$ module list
Currently Loaded Modulefiles:
 1) sge/8.1.6
Â
other useful commands
Command | Description |
---|---|
module whatis | Gives a one-line description of all available modules |
module show <module> | Shows what environment variables a module will modify |
module help <module> | Gives more information about the package (e.g. website, license) |
module purge | Unload all modules from environment |
module find <module> | Searches institutional modules as well as central modules |
 Modules Release 3.2.10 2012-12-21 (Copyright GNU GPL v2 1991):
 Usage: module [ switches ] [ subcommand ] [subcommand-args ]
Switches:
   -H|--help      this usage info
   -V|--version      modules version & configuration options
   -f|--force      force active dependency resolution
   -t|--terse      terse   format avail and list format
   -l|--long      long    format avail and list format
   -h|--human      readable format avail and list format
   -v|--verbose      enable verbose messages
   -s|--silent      disable verbose messages
   -c|--create      create caches for avail and apropos
   -i|--icase      case insensitive
   -u|--userlvl <lvl>   set user level to (nov[ice],exp[ert],adv[anced])
 Available SubCommands and Args:
   + add|load      modulefile [modulefile ...]
   + rm|unload      modulefile [modulefile ...]
   + switch|swap      [modulefile1] modulefile2
   + display|show      modulefile [modulefile ...]
   + avail         [modulefile [modulefile ...]]
   + use [-a|--append]   dir [dir ...]
   + unuse         dir [dir ...]
   + update
   + refresh
   + purge
   + list
   + clear
   + help         [modulefile [modulefile ...]]
   + whatis      [modulefile [modulefile ...]]
   + apropos|keyword   string
   + initadd      modulefile [modulefile ...]
   + initprepend      modulefile [modulefile ...]
   + initrm      modulefile [modulefile ...]
   + initswitch      modulefile1 modulefile2
   + initlist
   + initclear
.modulerc - automatically loading modules
You can create a ".modulerc" file in your home directory, ${HOME}/.modulerc, to automatically load modules when you login.
#%Module1.0 module load openmpi/1.8.3 module load jruby/3.2.
Â
Â