There are some cases or types of designs that cause the flow to trigger a full re-synthesis of the design. These instances occur under the following conditions:
- When changes to the top level of the hierarchy are made
- When the Synthesis settings change
- When small designs contain few partitions
- When more than 50% of the partitions have a change
In addition, unusually large XDC files can trigger a re-synthesis of the full design. This improves in future releases.
Note: Even though it is a Synthesis setting,
-mode
out_of_context does not trigger a full re-synthesis.