I am trying to find away to run drc on the top level whilst excluding certain instances from being checked.
incidentally, i am aware of the EXCLUDE command in the svrf user guide, but it does not check how the cell interacts with the top level.
for example, how can you ignore drc results within a instance, but flag errors when the polygons within the instance interact with polygons in the top level in a undesired way.
If the errors within the cell are known in advance, you might try the waiver flow. That can be used for "yes, I know about this and it is okay" type of errors.
I'd be interested in hearing other ways to grey-box your DRC.