project.py to support systematic variations
We are trying to study the impact of many (50+) variations in our detector simulation.
Currently this means I'd have to write 50 xml files or write a very long xml file with many stages. I would then have to execute the submission of these individually.
It would be great to have it such that I could use project.py to run N different fcl files over the same input SAM definition in a single issuing of project.py.
This could be done either by being able to execute many stages simultaneously (comma separated?) or by launching one stage that launches many sets of jobs using a different fcl file with different output directories (named by the fcl files?).
PS - One could also imagine this going the other way of wanting to running the same analysis fcl over 50+ different SAM definitions.