You could also try the following: set_global_assignment -name SYNTHESIS_EFFORT FAST In a meeting with Intel/Altera engineers, using -implement this was ball-parked to be about 20% faster than -compile, and came recommended when iterating on timing-closure results. Option to run compilation up to route stage and skipping all time intensive algorithms after. set_global_assignment -name FITTER_EFFORT FAST_FITįast Fit decreases optimization effort to reduce compilation time, which may degrade design performance.Īnd instead of execute_flow -compile, use: execute_flow -implement Fast uses less compile time but may reduce the performance gain that physical synthesis is able to achieve. Specifies the amount of effort, in terms of compile time, physical synthesis should use. set_global_assignment -name PHYSICAL_SYNTHESIS_EFFORT FAST Some useful flags to make Quartus synthesize faster if you don't care about fully optimizing your results and just want to get a pessimistic estimate or do comparisons.
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