O2openaccess

Repository for ALICE open access software

ALICE software documentation

https://aliceo2group.github.io/analysis-framework/
https://indico.cern.ch/event/1267433/timetable/#20230417.detailed

Environment setup

The environment (the package dependencies and the package path) is setup by running:
source enable

There are a few of steering env vars:
O2OPENACCESS_USE_LOCAL : set to any value to use the user-defined local tag or the default one (see below)

O2OPENACCESS_SW_TAG_LOCAL : tag name to be used for O2Physics dependency(local installed); It has a default of: latest-o2physics-o2

O2OPENACCESS_SW_TAG_CVMFS : tag name to be used for O2Physics dependency(cvmfs based); It has a default of: nightly-20230423-1

The default behaviour is that O2OPENACCESS_USE_LOCAL is not set, and cvmfs dependency will be used

Building

Use ./build_cmd for task compilation It has the following flags:

• debug - enable very verbose debug options for cmake

The build script make use of enable env setup script described above.

Running

Use the provided ./run_analysis example to run analysis in an already loaded environment

To find help on options use: o2-analysistutorial-flow-analysis --help

or for more comprehensive help o2-analysistutorial-flow-analysis --help full

Running in singularity container

See the content of cvmfs directory

• ./run_cvmfs_analysis will load a cvmfs O2Physics version and run the analysis
• ./cvmfs_cmd will run the above script within the provided container with the help of cvmfs2go script