1. Set your PrimeTime env
2. Set your library
3. Read your design and link it to your tech library.
4. Read your clock and constraints.
5. Run PrimeTime to checkand report your paths in your design.
when you run post-apr sta, remember you need remove clock uncertainty and latency, and set propagated clock.
and you should set min library for max / min analysis.
...Set library
...Set working environment
...Read in netlist
...Souce constraint file
...Annotate SDF file, either from P&R or design compiler
...Report timing and violations
...Done