How can I do not redetermine neighbors for the atoms?

Dear Alex:
I have a question about that how can I do not redetermine neighbors for the atoms. I mean that i do not want to calculate the neighbor atoms for the some atoms that I have marked .
It is the command "neighbor_modify"or other commands?
Simen Zhou
School of Aeronautics sicence and engineering
Beihang university
Xueyuan road No 31. Haidian district. Beijing

Dear Alex:
       I have a question about that how can I do not redetermine neighbors
for the atoms. I mean that i do not want to calculate the neighbor atoms for
the some atoms that I have marked .

that is extremely unusual.

      It is the command "neighbor_modify"or other commands?

no. there is no such thing.
what should it be useful for?

there only is neigh_modify once
but that is a global flag.

axel.

If you set all the atoms you don't want neighbors of
to be of type N, then you can use neigh_modify exclude
for interactions with that type (all other types with N),
and they will not be in the neighbor list.

Steve