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Altera_Forum
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16 years ago

Compilation time for Quartus II 9.0

I have recently upgraded Quartus II from 7.3 SP2 to 8.1 and am very happy with the compilation speed (about 25% faster in my case). But does anyone know how much faster the 9.0 is comparing to 8.1? A...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi

I have a somewhat disappointing result for our design here:

With Quartus 8.1, the fitter needs between 2h15 and 3h15 for different seeds, synthesis is 51min.

With Quartus 9.0, the fitter needs between 3 and 6 hours, with the mean value around 5h. Synthesis is somewhat shorter (46min).

I have to say that the design is made for an ASIC - and even there the clocking strategy is not very nice. For an FPGA it is disastrous.

So if anyone has a cool trick with settings to remedy hold time violations due to clock skew - please tell me ;) I can't change the design for now...

Thanks

emanuel