Qsys and incremental compilation

yes, try taking a look at the documentation and/or free online training

its pretty straight forward, after a compile you can open the Hierarchy window and start expanding the modules, find modules to make partitions, right click and make it so

in the Design Partitions window you can then define the netlist type for each partition (source files, post-fit, empty)

Thank you.

I got confused, in fact there's no hierarchy in design partitions even if they're of hierarchical modules.

I got compilation down from 8min only to 4min while sourcing 2% of the design and post-fitting 98% of it.

But I guess incremental compilation is as more interesting as designs are bigger or harder to fit.

Incremental Compilation is not a magic bullet. it is a useful tool that may help reduce compile time, increase fmax, or help fitting in certain cases

there's probably a certain overhead that makes it more useful in longer compiles