Forum Discussion

AEsqu's avatar
AEsqu
Icon for Contributor rankContributor
2 years ago

Hyper-Retiming, How to disable it in the .qsf?

Hyper-Retiming, How to disable it in the .qsf?

I'm asking because Quartus is not able to apply it on my design, hence I want to skip it to save run time (stratix 10, Quartus 21.1).

Messages from Quartus:

Info(16607): Fitter routing operations ending: elapsed time is 00:40:14
Info(17966): Starting Hyper-Retimer operations.
Info(18914): The Hyper-Retimer was unable to optimize the design due to retiming restrictions. Run Fast Forward Timing Closure Recommendations to see step-by-step suggestions for design changes and show the estimated performance improvement from making these changes.

Info(17968): Completed Hyper-Retimer operations.
Info(18821): Fitter Hyper-Retimer operations ending: elapsed time is 00:35:37

Thanks,

Alex.

33 Replies

Show More
  • Nurina's avatar
    Nurina
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hello Alex,


    Just to clarify, right now the info messages regarding the hyper-retimer I mentioned above are always generated, it doesn't matter whether or not timing has been met by retimer.

    Therefore, please refer to the retimer reports for the correct details. It would mention if the retimer has optimized the timing based on the clock domains.


    Regards,

    Nurina


  • AEsqu's avatar
    AEsqu
    Icon for Contributor rankContributor
    2 years ago

    Let's close the discussion then as the retimer has to run everytime.

  • Nurina's avatar
    Nurina
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hello Alex,


    Since I've addressed your question, I now transition this thread to community support. If you have a new question, Feel free to open a new thread or login to ‘ https://supporttickets.intel.com ’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

    Have a great day.

    Best regards,

    Nurina