preserving hierarchy of a design

[Altera_Forum]

How to preserve hierarchy in Quartus-II synthesis. 

 Xilinx has KEEP_HIERARCHY which will preserve the complete hierarchy of the design.   I saw in Altera documentation about Incremental compilation to preseve the hierarchy by partitioning each sub-module, which is tedious if you have too many number of modules being instantiated in your top-level or so.   Global command to preserve hierarchy in a design will be helpful.

[Altera_Forum]

What do you mean by "preserve the complete hierarchy"? The complete hierarchy should exist in your design. If you mean it acts like a keep on every wire/signal in the design, there isn't anything that does that, but it would basically blow-up a design, bothin size and poor performance. Incremental compilation will keep all the pins of a hierarchy, and even that can cause problems if you do it too much. (To answer your question, I don't think there is, but also think it would cause serious problems. You had it working in X, so maybe it behaved differently there?)

[Altera_Forum]

I dont want any cross boundary optimization to happen for this happen and thats the reason i wanna have my design hierarchy to be as it is. 

 Optimization can be done with in submodule but not across the sub-modules.   I knew it will blow up the design, I am ready to pay for that, Its a kind of experiment which i am doing on this design.   I will be suprised if altera doesnt have this option as most of the synthesis tools have this option of "preserving the hierarchy".

[Altera_Forum]

--- Quote Start ---  How to preserve hierarchy in Quartus-II synthesis.   Xilinx has KEEP_HIERARCHY which will preserve the complete hierarchy of the design.   I saw in Altera documentation about Incremental compilation to preseve the hierarchy by partitioning each sub-module, which is tedious if you have too many number of modules being instantiated in your top-level or so.   Global command to preserve hierarchy in a design will be helpful.  --- Quote End ---    So I have the same problem. Are there any solutions for KEEP_HIERARCHY in Quartus II?