Millipede cluster user guide: Module environment

On the system a wide variety of software is available for you to use. In order to make life easier for the users, the module system has been installed to help you setting up the correct environment for the different software packages. This also allows the user to select a specific version of a software package.

Module command

The environment can be set using the “module” command. Some useful available options for the command are:

avail	List the available software modules
list	List the modules you have currently loaded into your environment
add <module name>	Add a module to your environment
rm <module name>	Remove a module from your environment
purge	Remove all modules from your environment
initadd <module name>	Add a module to your initial environment, so that it will always be loaded.
initrm <module name>	Remove a module from your initial environment.
whatis <module name>	Gives an explanation of what software a certain module is for.

To see the available module in the system you can use the “avail” command like:

$ module avail

---------------------------- /cm/local/modulefiles ----------------------------- 3ware/9.5.2 dot null version cluster-tools/5.0 freeipmi/0.7.11 openldap cmd ipmitool/1.8.11 shared cmsh module-info use.own

---------------------------- /cm/shared/modulefiles ---------------------------- R/2.10.1 hpl/2.0 R-tcltk/2.10.1 intel/compiler/32/11.1/046 acml/gcc/64/4.3.0 intel/compiler/64/11.1/046 acml/gcc/mp/64/4.3.0 intel-cluster-checker/1.3 acml/gcc-int64/64/4.3.0 intel-cluster-runtime/2.1 acml/gcc-int64/mp/64/4.3.0 intel-tbb/ia32/22_20090809oss acml/open64/64/4.3.0 intel-tbb/intel64/22_20090809oss acml/open64-int64/64/4.3.0 lam-7.1.4/7.1.4 acml/pathsc ale/64/4.2.0 lapack/gcc/64/3.2.1 acml/pathscale/mp/64/4.3.0 lapack/intel/64/3.2.1 blacs/mpichge/intel/64/1.1patch03 lapack/open64/64/3.2.1 blacs/openmpi/gcc/64/1.1patch03 matlab/2010 blacs/openmpi/intel/64/1.1patch03 maui/3.2.6p21....

To show the modules currently loaded into your environment you can use the “list” command, like

$ module list Currently Loaded Modulefiles: 1) gcc/4.3.4 3) torque/2.3.7 2) maui/3.3 4) intel/compiler/64/11.1/046

To add a module (or multiple modules) to your environment you can use the “add” command:

$ module add intel/compiler/64 openmpi/intel

When you want to load a module each time you login you can use the initadd command :

$ module initadd intel/compiler/64

Especially the torque and maui modules, necessary for scheduler commands, are very useful to load by default.