I’m using AliRoot/AliPhysics software, which includes ROOT and I wanted to switch from Pythia 6 to Pythia 8.
I followed the instructions here: http://alice-offline.web.cern.ch/Activities/Simulation/ExternalGenerators.html
And run the example pythia8.C from here: https://github.com/alisw/AliRoot/blob/master/PYTHIA8/pythia8.C
It works, doesn’t give back errors, but it loads first the welcoming screen of Pythia 8, and then it runs a welcoming screen of Pythia 6.
Does anyone now it that’s alright? Or is it just loading pythia 6 and ignores pythia 8?