GPC Software - Environments

  • Faculty & Staff

GPC uses software environment modules to allow users to quickly switch between software environment settings. Environment variables and path settings can be modified using a single command.

 

 

Listing available environments

[ks347@gpc ~]$ module avail

 

--------------- /etc/modulefiles ---------------

cluster-tools/7.1         cmd                       cmsub                     gcc/5.1.0

 

---------- /usr/global/Modules ---------------

blacs/openmpi/gcc/64/1.1patch03      fftw3/openmpi/open64/64/3.3.4    netcdf/gcc/64/4.3.3.1

 

[ks347@gpc ~]$

 

 

The $ module avail command will show a list of all available environments under the /usr/global/Modules section. If multiple versions of a software package are installed, they will show up as SOFTWARE_NAME/VERSION.

 

 

Listing enabled environments 

[ks347@gpc ~]$ module list

Currently Loaded Modulefiles:

  3) cmsh                4) cmd                 5) cluster-tools/7.1   6) sge/2011.11p1

 

[ks347@gpc ~]$

The $ module list command will show a list of all environments that are currently loaded.

 

 

Loading an environment

[ks347@gpc ~]$ module list

Currently Loaded Modulefiles:

  1) SGE/8.1.8

[ks347@gpc ~]$ module load blas/gcc/64/3.5.0

[ks347@gpc ~]$ module load lapack/gcc/64/3.5.0

[ks347@gpc ~]$ module list

Currently Loaded Modulefiles:

  1) SGE/8.1.8    2) blas/gcc/64/3.5.0   3) lapack/gcc/64/3.5.0

[ks347@gpc ~]$

The $ module load SOFTWARE_NAME/VERSION command will load an environment if it is available.

 

 

Unloading an environment

[ks347@gpc ~]$ module list

Currently Loaded Modulefiles:

  1) SGE/8.1.8    2) blas/gcc/64/3.5.0   3) lapack/gcc/64/3.5.0

[ks347@gpc ~]$ module unload lapack

[ks347@gpc ~]$ module list

Currently Loaded Modulefiles:

  1) SGE/8.1.8    2) blas/gcc/64/3.5.0

[ks347@gpc ~]$

The $ module unload SOFTWARE_NAME/VERSION command will unload an environment if it is currently loaded.

 

 

Inspect an environment

[ks347@gpc ~]$ module show openmpi/gcc/64/1.8.5

-------------------------------------------------------------------

/cm/shared/modulefiles/openmpi/gcc/64/1.8.5:

 

module-whatis    adds OpenMPI to your environment variables

prepend-path     PATH /cm/shared/apps/openmpi/gcc/64/1.8.5/bin

prepend-path     MANPATH /cm/shared/apps/openmpi/gcc/64/1.8.5/share/man/

setenv           MPI_HOME /cm/shared/apps/openmpi/gcc/64/1.8.5

setenv           MPI_RUN /cm/shared/apps/openmpi/gcc/64/1.8.5/bin/mpirun

prepend-path     LD_RUN_PATH /cm/shared/apps/openmpi/gcc/64/1.8.5/lib64

prepend-path     LD_LIBRARY_PATH /cm/shared/apps/openmpi/gcc/64/1.8.5/lib64

prepend-path     CPATH /cm/shared/apps/openmpi/gcc/64/1.8.5/include

-------------------------------------------------------------------

 

[ks347@gpc ~]$

  

The $ module show SOFTWARE_NAME command shows a list of all environment variables and path settings that are added when the module is loaded.