While trying to debug something else, I discovered that CA-based Transforms silently ignore
--athenaopts because the skeletons don't call fillFromArgs. This MR adds the fillFromArgs call to all CA-based skeleton-files.
Also in the MR:
- TrfExe.py no longer adds
--nprocto the athena command line if in CA mode, as these values are anyway set in the runargs file.
- AthConfigFlags: Add
--concurrent-eventsto the argument parser (fixes a failing unit-test)