Intel® Quartus® Prime Standard Edition User Guide: Design Compilation

ID 683283
Date 9/24/2018
Document Table of Contents Turning On Supported Cross-boundary Optimizations

You can improve the optimizations performed between design partitions by turning on supported cross-boundary optimizations. These optimizations are turned on a per partition basis and you can select the optimizations as individual assignments. This allows the cross-boundary optimization feature to give you more control over the optimizations that work best for your design. You can turn on the cross-boundary optimizations for your design partitions on the Advanced tab of the Design Partition Properties dialog box. Once you change the optimization settings, the Intel® Quartus® Prime software recompiles your partition from source automatically. Cross-boundary optimizations include the following: propagate constants, propagate inversions on partition inputs, merge inputs fed by a common source, merge electrically equivalent bidirectional pins, absorb internal paths, and remove logic connected to dangling outputs.

Cross-boundary optimizations are implemented top-down from the parent partition into the child partition, but not vice-versa. Also, cross-boundary optimizations cannot be enabled for partitions that allow multiple personas (partial reconfiguration partitions).