Software Installation

Atlas

Atlas software is managed directly by CERN through CernVM-FS. You can find information https://twiki.cern.ch/twiki/bin/view/AtlasComputing/CentOS7Readiness#ATLAS_software_status

Before running the test, you need to define a alias with the following command line

alias atlasSetup='export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase; source $ATLAS_LOCAL_ROOT_BASE/user/atlasLocalSetup.sh'

After that, you need to load atlas environnement

atlasSetup
asetup AthGeneration, 21.6.12,here

After that, we will run a small test

mkdir test
cd test
cp /cvmfs/atlas.cern.ch/repo/sw/Generators/MCJobOptions/421xxx/421114/mc.Py8EG_A2MSTW2008LO_minbias_inelastic_high.py .
Gen_tf.py --ecmEnergy=13000. --firstEvent=1 --maxEvents=1 --randomSeed=1234 --jobConfig=421114 --outputEVNTFile=test_MB_421114.EVNT.root

You can see your code run

The full tutorial can be found https://twiki.lal.in2p3.fr/bin/view/Main/LDSoftwareTutorialMonteCarlo