parameters: (self)
docstring: barrier_all() will call MPI's barrier_all function
docstring_summary: barrier_all() will call MPI's barrier_all function
docstring_tokens: barrier_all () will call MPI s barrier_all function
function: def _barrier_all(self):
          """
          barrier_all() will call MPI's barrier_all function
          """
          self._comm.barrier()
function_tokens: def _barrier_all ( self ) : self . _comm . barrier ( )