Two possibilities to setup work (root, gcc, python, atlas crap) on tier3:
- Using cvmfs (preferred)
cf cvmfs (canada)
Insert in .sh file to be sourced at login time
export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBasesource
${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh
alias setupATLAS='source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh'
#this set up python
localSetupPython --pythonVersion=2.6.5-x86_64-slc5-gcc43
#this set up root 5.32
source /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/5.32.00-x86_64-slc5-gcc4.3/bin/thisroot.sh
#this setup gcc compiler
source /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/Gcc/gcc435_x86_64_slc5/setup.sh
One can also set up using asetup the usual athena crap...
- Using afs (deprecated)
source /afs/cern.ch/sw/lcg/external/gcc/4.3.2/x86_64-slc5/setup.sh
cd /afs/cern.ch/sw/lcg/app/releases/ROOT/5.32.00/x86_64-slc5-gcc43-opt/root
source bin/thisroot.sh
cd -
P.S. Note the versions are selected using the various directories