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Altera_Forum's avatar
Altera_Forum
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10 years ago

Very long compilation time

Hi, I am having a problem with extremely long compilation time. A simple VHDL code is taking 1 hour to compile. I am using Quartus 15.1 Standard Edition (trial version). I have seen that in the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Kind of a late reply, but decided to add my solution for the record.

My home system uses Quartus Prime 16.0.0 Lite Edition. Just like you, it would get stuck at the Fitter 35% when using Advanced Physical Optimization. From the Windows Task Manager, I would get 100% CPU usage whenever the fitter (quartus_fit.exe) got to that point.

To solve it I went to the Compiler Settings, clicked on "Advanced Settings (Fitter)..." and disabled Advanced Physical Optimization (Off). After that CPU usage wouldn't go past 35% and compilation time went down to a few minutes.