High-Fanout Optimization works as follows:
- High fanout nets, with negative slack within a percentage of the WNS, are considered for replication.
- Loads are clustered based on proximity, and drivers are replicated and placed for each load cluster.
Timing is re-analyzed, and logical changes are committed if timing is improved.
Tip: Replicated objects are named
by appending
_replica to the original object name,
followed by the replicated object count.