Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Will Quartus generate same timing results if a build is run twice?

If a design is P&R with Quartus, will it give same timing result for two builds if no parameter is changed for either build? No RTL change, no SDC change, no SEED change. I would think it shou...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

--- Quote Start ---

All Windows should be the same, but different than Linux compiles.

--- Quote End ---

I'll just add that 32-bit and 64-bit compiles will also give different results, again since the compilers are different. So win32, win64, lin32 and lin64 will all give different answers from one another, but (as Rysc said) these are just equivalent to a change in seed.

Just to reiterate what everyone else has said: yes, if Quartus is run twice on the same inputs on the same OS, it will always give the same results.

Adrian Ludwin

Altera Corp.