Incremental compilation

refer to document below.

http://www.altera.com/literature/hb/qts/qts_qii51015.pdf

Which can be found in this page:

http://www.altera.com/support/software/incremental/sof-qts-increment-comp.html?gsa_pos=2&wt.oss_r=1&wt.oss=incremental%20compilation

Page 2-7: Quick Start Guide—Summary of Incremental Compilation

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Any one who's working with quartusii software knows anything about the function of Incremental Compilation? I am developing a giant system, and I am having a BIG Headache about the totally recompilaton of the hole project. This costs me plenty of time. So I am seeking for help that somebody could enlighten me the way to use incremental compilation. THANKS VERY MUCH!~~~~~~

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Hi,

can you expalin how big your design will be ? Compile runtime depends on a lot of things.

E.g. device utilization, timing constraints , design size, .....

Kind regards

GPK

--- Quote Start ---

Hi,

can you expalin how big your design will be ? Compile runtime depends on a lot of things.

E.g. device utilization, timing constraints , design size, .....

Kind regards

GPK

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Thanks, the major problem I am encounting is that when I finished the partition assignment, and set the unchanged partition with the netlist type of "post-fit",but after the recompilation, the software still fitted the all design again, I don't see the meesage of "using the previous netlist" which shows in the Altera DEMO, and the fitting time doesn't reduce.......

Kind regards

--- Quote Start ---

Thanks, the major problem I am encounting is that when I finished the partition assignment, and set the unchanged partition with the netlist type of "post-fit",but after the recompilation, the software still fitted the all design again, I don't see the meesage of "using the previous netlist" which shows in the Altera DEMO, and the fitting time doesn't reduce.......

Kind regards

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Hi,

did you define a fix LogicLock Region for all your design partitions ? Which Fitter preservation level did you choose ?

After the elaborate step you should get info's like:

Info : x design partitions requires synthesis

or

Info : x design partitions do not require synthesis

Expand the message, maybe you get a hint what is wrong.

Kind regards

GPK