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Using PLL-testbenches in MMSIM11 64bits on IC615.509

dwight6

Hello guys, I really appreciate any help with this simulation error.I am working with IC615.509 and MMSIM 11.10.341

 I am trying to run a phase noise simulation via "transient noise" and I am having this error when trying to simulate. Basically, after I set up the testbench (ADEGXL), spectre uses a plugin for calling some binary libs of the PLL-testbench. Doing so, spectre calls the 32 bit version of the libs instead of the 64 bit one, which are curiosly located at the same path but in the 64bit directory: $MMSIM/tools/spectre/lib/64bit.

My question is: How should I set up my testbench to pick the right version of the libs?

Thanks.

PD: Some ways to deal with this problems (not the best for sure) are:

1) Create links for the 64bit libraries inside the 32bits directory.

2) Running spectre from command line but editing the "plugin sentence" to point at the right libraries.

 

From spectre.out

Command line:
     \
        /local/linux/cadence/mmsim11.10.341/tools.lnx86/spectre/bin/64bit/spectre  \
        input.scs +escchars +log ../psf/spectre.out -format psfxl -raw  \
        ../psf +lqtimeout 900 -maxw 5 -maxn 5 -plugin  \
        /local/linux/cadence/mmsim11.10.341/tools.lnx86/spectre/lib/libpllMMpsd_sh.so  \
        -cmiconfig  \
        .../test/CS/adexl/results/data/Interactive.82/1/test:CS:1/netlist/pllcmi.cfg


Loading /local/linux/cadence/mmsim11.10.341/tools.lnx86/spectre/lib//libpll_sh.so ...

Warning from spectre.
    WARNING (SPECTRE-4067): Error opening shared object:/local/linux/cadence/mmsim11.10.341/tools.lnx86/spectre/lib//libpll_sh.so: wrong ELF class: ELFCLASS32.
        If the shared object is generated from verilog-A module with different simulator version, regenerate it with the current simulator.
Error found by spectre.
    ERROR: Failed to load plugin '/local/linux/cadence/mmsim11.10.341/tools.lnx86/spectre/lib/libpllMMpsd_sh.so': /local/linux/cadence/mmsim11.10.341/tools.lnx86/spectre/lib/libpllMMpsd_sh.so: wrong ELF class: ELFCLASS32
 

 

 

 

  •  Hi Dwight,

     

    This sort of question is best handled by contacting Cadence Customer Support (http://support.cadence.com). 

    I'm not sure if you are running into a bug ... or if it's a setup issue.  It *may* be related to a known bug CCR that I found in our system. 

     

    Best regards,

    Tawna

      

     

  • How are you enabling 64 bit spectre? Is it via the $CDS_AUTO_64BIT env var (or whatever it's called - I'm on a handheld device so can't check), or by typing -64 in the userCmdLineOption field, or using the checkbox in the Setup->Environment form to enable 64 bit?

    Which IC subversion (Help->About in the CIW) are you using?

    Regards,

    Andrew=

  • Hi Andrew. Thanks for you reply.

    I tried both via CDS_AUTO_64BIT=ALL and activating the 64bit option in the menu "Enviroment" in ADEGXL, but it didn't work.

    The subversion is: IC6.1.5-64b.500.9

    I was thinking in a way to add or edit the parameters/options passed to spectre (runSimulation) from ADE. In that way I could eventually re-write the path to the libs. But I dont know if that is possible.

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