For UltraScale+ and newer device families, use the Interconnect Congestion Level metric. This metric provides a simplified view with improved accuracy and better alignment to how the router estimates congestion. The bin colors reflect the congestion levels.
Figure 1. Interconnect Congestion Level Metric Properties
In the configuration window, you can configure the metric view to show the following information:
- Estimated routing congestion (affects the placer), actual routing congestion (affects the router), or both
- Only items above the interconnect utilization threshold (for example, 0.9 = 90% usage)
- Any combination of routing types (Short, Long, or Global)
- Any combination of routing directions
Figure 2. Interconnect Congestion Level Configuration
