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

Intel Questasim is very slow, e.g. cd ..

Hello, I switched from modelsim to questasim and experienced, that some questasim commands are very slow compared to modelsim. Examples are cd, project new, vsim, quit -sim... Typing cd .. on th...
  • Marf's avatar
    Marf
    3 years ago

    Finally I found the reason for the slow behaviour.

    If I remove the intel/altera specific libraries from the default modelsim.ini, the questasim is fast again.

    Yet I didn't check, if there is a specific library or if the amount of libraries makes questasim slow. Since my code is platform independent, I removed the altera libraries from the modelsim.ini.

    Works for me and hopefully helps other FPGA developers to find a solution for this issue.

    Thanks for trying to help.

Marf's avatar
Marf
Icon for New Contributor rankNew Contributor
3 years ago

Finally I found the reason for the slow behaviour.

If I remove the intel/altera specific libraries from the default modelsim.ini, the questasim is fast again.

Yet I didn't check, if there is a specific library or if the amount of libraries makes questasim slow. Since my code is platform independent, I removed the altera libraries from the modelsim.ini.

Works for me and hopefully helps other FPGA developers to find a solution for this issue.

Thanks for trying to help.

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

    Thanks!

    For me launching Questa takes seconds, it freezes for no reason, doing anything in the tcl console freezes the GUI for seconds.

    I contacted Intel 2years ago about it and as usual they were completely clueless.

    It's just crazy it is still not solved in 2024.