- 220.127.116.11. Reducing Opening a Project, Creating Design Partitions, andPerforming an Initial Compilation
- 18.104.22.168. Specifying a Destination Library Name in the Intel® Quartus® Prime Settings File or with Tcl
22.214.171.124. Resynthesis Due to Source Code Changes
For example, if a design has file A.v that contains entity A, B.v that contains entity B, and C.v that contains entity C, then the Partition Dependent Files table for the partition containing entity A lists file A.v, the table for the partition containing entity B lists file B.v, and the table for the partition containing entity C lists file C.v. Any dependencies are transitive, so if file A.v depends on B.v, and B.v depends on C.v, the entities in file A.v depend on files B.v and C.v. In this case, files B.v and C.v are listed in the report table as dependent files for the partition containing entity A.
If you define module parameters in a higher‑level module, the Intel® Quartus® Prime software checks the parameter values when determining which partitions require resynthesis. If you change a parameter in a higher‑level module that affects a lower‑level module, the lower‑level module is resynthesized. Parameter dependencies are tracked separately from source file dependencies; therefore, parameter definitions are not listed in the Partition Dependent Files list.
If a design contains common files, such as an includes.v file that is referenced in each entity by the command include includes.v, all partitions are dependent on this file. A change to includes.v causes the entire design to be recompiled. The VHDL statement use work.all also typically results in unnecessary recompilations, because it makes all entities in the work library visible in the current entity, which results in the current entity being dependent on all other entities in the design.
To avoid this type of problem, ensure that files common to all entities, such as a common include file, contain only the set of information that is truly common to all entities. Remove use work.all statements in your VHDL file or replace them by including only the specific design units needed for each entity.
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