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EugeneF's avatar
EugeneF
Icon for New Contributor rankNew Contributor
3 years ago
Solved

Quartus 18.1 fitter crash

Sometimes (after minor changes) during project compilation fitter crashes with an error: Error: Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/vpr_common/cluster_legality_p...
  • IntelSupport's avatar
    IntelSupport
    3 years ago

    Hi Eugene,


    Please let me know if you are able to resolve this using below suggestion.


    Update:


    I am able to pin down the IE is triggered during heuristic accounting of input pins to a cluster. This heuristic counting is used to generate packing that give more flexibility for router to resolve local congestions for outlier designs, so it should be generally safe to disable this. I have tried the INI to disable this algorithm and the design is able to compile successfully.


    Here is the encrypted INI (copy and paste this ini in your qsf) for 21.1 std (encrypted INI support is only avaliable for 20.1std or newer) then recompile.

    ini_password = 0f56f88f5713676e261178731ef27f42b49cd891b355d81b400032576444751330035221150003342320131030052576




SyafieqS's avatar
SyafieqS
Icon for Super Contributor rankSuper Contributor
3 years ago

Hello,


This is still pending from developer for update.


May I know how urgent this issue is?

Is this internal error total roadblock your development?



EugeneF's avatar
EugeneF
Icon for New Contributor rankNew Contributor
3 years ago
Hello. It is not a total block, because we are able to find some compilable variant by making some random project changes. But that significantly increase development time after any project upgrade. So we are still waiting for the solution.