code: def check_simulation(wdir):
      
      wdir = pathlib.Path(wdir)
      field = wdir / "V_0Ereim.dat"
      if not (field.exists() and
              field.stat().st_size > 130):
          msg = "Output {} does not exist or is too small!".format(field)
          raise BHFIELDExecutionError(msg)
docs: Check bhdebug.txt to make sure that you specify enough digits to
      overcome roundoff errors.