=== adjust .gangarc ===

If there is a problem with oversized sandboxes, set it:
{{{
[LCG]
DefaultSE  = dcache-se-atlas.desy.de
}}}

The rest of the information can be found here:
https://znwiki3.ifh.de/ATLAS/WorkBook/NAF/Grid%20Tools#head-670939a2ffa9dcd2fce8e6495aca2db8c7d80642

The adjusted .gangarc file can be found here: [[attachment:.gangarc]]

Working Ganga release is 5.1.10

=== Athena Python Version Clash ===

There is a clash with the python version of gliteatlas/grid setup and Athena. The workaround is to first set up the grid proxy:
{{{
ini gliteatlas
voms-proxy-init -voms atlas
unset PYTHONPATH
}}}
and then setup Athena (source cmthome/setup.sh).