+# The MPI-2 specification makes it clear that delect attributes are
+# called on MPI_COMM_WORLD and MPI_COMM_SELF at the very beginning of
+# MPI_Finalize. This is useful for tools that want to perform the MPI
+# equivalent of an "at_exit" action.
+# SMPI does not keep a copy of comm_self at all times for memory reasons...