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Altera_Forum's avatar
Altera_Forum
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10 years ago

could Modelsim-altera run in 64 bit mode, or load 64bit C library?

Hi all,

i am using modelsim-altera 10.1d that comes together with Quartus II subscription edition 13.1.

There is no linux64 folder or similar so I tried to run the modelsim in 64 bit mode by:

$(altera_home)/13.1/modelsim_ase/linux/vsim -64.

It would return:

Failed to open executable $(altera_home)/13.1/modelsim_ase/linux/../linuxpe/vish in execute mode needed for the option -64.

execv: No such file or directory.

I also tried the vsim under linuxaloem folder, which also failed.

So the question is: could modelsim-altera ran in 64 bit mode? Or is there any way to load some 64bit systemC library.

I actually succeeded in loading 32bit libraries, but the one I need to load has some codes that seemingly only work in 64 bit.

Thanks!

Tie Chen

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    Answer - 64 bit version is only available as a paid subscription version

    And mentor will tell you the 64 bit version actually runs slower than the 32 bit.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    I am using model-sim altera rather than model-sim altera starter.

    Do you mean I need to have model-sim SE or Questa?

    I do not care about the speed for now. I am giving a 64-bit C library and a testbench and the simulation result did not match if I compiled the c source files in 32 bit mode.

    Thanks

    Tie Chen
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    Sorry to bother you again. I could not find SE on mentor graphics's website, is it gone?

    It seems now they only have Questa or Modelsim PE. I know that modelsim-altera is a special version of PE. Does this means that I have to use Questa?