The ATLAS Analysis Software Project

This is the configuration for building the analysis software of ATLAS, meant for performing final-stage analysis on DxAOD

It shares much the same code with the Athena project, it just doesn't build a lot of things that are not needed for analysis jobs.

Setup Instructions

You need a recent version of cmake and gcc set up. You can get this from setupATLAS with, for instance:

asetup none,gcc8,cmakesetup --cmakeversion=3.18.3

Build Instructions

To build the externals necessary for building this project itself, use the

./build_externals.sh -fc

script. It will build all the externals necessary for this project into a subdirectory of the directory holding this repository, called build.

The sources of the externals will be checked out under build/src, the build of the projects will commence under build/build, and the results of the build will be installed under build/install.

RPMs created from the externals are copied under build/ by the script.

Once the externals have finished building, you can initiate the full build of the project against these newly built externals by executing the

./build.sh -acmi

script. It uses the same directory layout inside the build directory as was used for the externals.

Finally, if you want to then use the release, you need to set it up by sourcing the setup script in the install area:

source ../../../build/install/AthAnalysis/*/InstallArea/*/setup.sh

If you do this in a new shell you will need to lsetup cmake and gcc again though!

In fact, instead of sourcing the setup script directly, you are advised to use the asetup command if it is available to you (which will source it on your behalf, as well as probably do some other things). E.g. you can do:

asetup AthAnalysis,22.2.4 --releasesarea=../../../build/install

of course substitute in the correct version number and path to the install area.