Explore the hierarchy physically to understand resource usage. The Hierarchy window displays a hierarchy map for the selected hierarchy. The map shows leaf cells as yellow blocks nested within rectangles representing their parent hierarchy.
Each level is sized relative to the number of instances at that level compared to the total number of instances in the design. If you select a hierarchy in the Netlist window, compare it to the total number of instances under that hierarchy.
To view the hierarchy map, select or press F6 from the Netlist window.
The figure shows that cpuEngine, usbEngine0, and usbEngine1 contain most of the logic in the design and use roughly the same amount of resources.
With default settings, all primitives are considered. Use the following steps to refer to the size of a specific resource:
- Open the settings by clicking the cog
. - Select the resources you want to view.