Changed Logging to standard logging module and brought the MPI import to the top so that MPI.COMM_WORLD.Abort could be called when errors occur. Abort ensures all MPI ranks are killed. I added this because I was seeing failures where the worker nodes were not being released even though all processes had exited.
Changed Logging to standard logging module and brought the MPI import to the top so that MPI.COMM_WORLD.Abort could be called when errors occur. Abort ensures all MPI ranks are killed. I added this because I was seeing failures where the worker nodes were not being released even though all processes had exited.

mlassnig/pilot,anisyonk/pilot,PanDAWMS/pilot,PanDAWMS/pilot,mlassnig/pilot,anisyonk/pilot