Analysis and Debug
Rerun global route, extraction, and timer update before analysing your design. You should check the following on the database after
you've optimised your placement:
Report the time analysis as well as paths tha are in voilation. Examine all the timing reports. If a high number of timing paths are are failing, Identify the reasons in detail.
Check congestion reports or GUI picture
Be sure to keep under 80% utilization going forward. If the utilization keeps up, reconsider changing the floor plan and analyse the cause of the area growing and how it can be controlled.
If the leakage power numbers are within the acceptable range The majority of people look at the LVT cell count rather than the leakage numbers (or percentage off LVT cells in design). If they're too high, take a closer look at what's going on.