Advance Place and Route Options (2)
PAR Multi-Pass Place and Route options
- Initial Placement Seed - determines algorithms used for placement
- Automatically incremented for each pass
- There is no method to predict which strategy will produce the
best results for a given design
- Place and Route Passes to Execute - specifies the number of passes
- Final PAR report reports relative design scores
- Scores are judged on critical path results and routing resources used
- Save N Best - specifies the number of routed designs to save
- PAR saves the best implementations, which have the lowest
scores
- Typically three