The cluster hosts many software that are packaged with specific versions of CMSSW but that can be used in a stand alone mode.
A tool was designed to easily find what is available and which versions can be used.
To list all the available software:
Most used software are specific version of gcc that are needed, or a root or geant4 version. To find all the available gcc versions:
/software/bin/soft.pl --versions gcc
Now, to get a given version of gcc (4.6.2 in this example) :
/software/bin/soft.pl --load gcc/4.6.2
This prints the full path of the init.sh that you have to source to get the desired version of gcc :
Let's now check the version of gfortran :
gfortran --version GNU Fortran (GCC) 4.6.2