C2PAP ATLAS Setup

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CVMFS setup

CVMFS is available on the C2PAP cluster (though not on c2paplogin) and this is the recommended way to setup the Grid, Athena and Root environment.

In order to set it up on the standard SLES11 Linux environment, follow these steps:

# setup frontier, libcrypto, etc
source /gpfs/work/pr58be/arc/runtime/APPS/HEP/ATLAS-SITE
# CVMFS
export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase
source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh

Depending on your software requirements there can be problems using the ATLAS software on SLES11 Linux, in particular rucio can be critical. An alternative is to start a Singularity container with an SL6 image. Note: Currently (13-Dec-2016) only available on node c2papdata2

# start SL6 image with singularity
singularity shell /home/hpc/pr58be/ri32buz2/dev/singularity/sl6.2.img
export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase
source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh
lsetup rucio 
# ....