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  3. Problem in simulating a circuit with spectre

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Problem in simulating a circuit with spectre

pdatta
pdatta over 11 years ago

Hi

I am new with linux and cadence. So, the problem I am facing may be a very simple one. But I couldn't find any solution in google and hence, I'm posting. I installed Cadence custom IC 6.15 and MMSIM 12 using iscape in ubuntu 12.04 32 bit OS.Then I installed NCSU freepdk45. Everything seem to work fine. When I run virtuoso, no error or warning in the cds.log file.

But problem occurs when I try to simulate a circuit. I tried to simulate with spectre (I don't have license for hspice). In doing the simulation I did the following things:

1. Initialize the spectre (simulation run directory: spectre.runl).

2. Lunch ADE L, choose simulator/directory/host

3. define model card path, set the stimuli 

4. choose the analysis,  select outputs to be plotted on schematic

5. then choose netlist and run.

When all of these are done I get an error message in the cds.log stating:

ERROR (ADE-3036): Errors encountered during simulation. The simulator run log has not been generated.

        Possible cause could be an invalid command line option for the version of the simulator

        you are running. Choose Setup->Environment and verify that the command line options

        specified in the userCmdLineOption field are supported for the simulator.

        Alternatively, run the simulator standalone using the runSimulation file in the netlist

        directory to know the exact cause of the error. 

So, if you please help me solving this problem, I would really appreciate it.

Palash Datta 

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  • Andrew Beckett
    Andrew Beckett over 11 years ago

    Hi Palash.

    Ubuntu is not a supported OS, but it's probably more the fact that you're using a 32-bit OS that is the issue. MMSIM11.1 onwards (I think) requires you to be using a 64-bit OS and will fail otherwise.

    You can probably check this easily by trying to invoke the "runSimulation" script in the netlist directory as the error message suggests.

    Regards,

    Andrew.

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  • Ryan66
    Ryan66 over 10 years ago
    Hi Andrew, Please, what's the difference between Cadence base IC6.15 and Cadence Hotfix IC6.15?
    Do I need to install the both (Base and Hotfix) to work with cadence virtuoso?
    Thanks for your help
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  • Andrew Beckett
    Andrew Beckett over 10 years ago

    The Base release was the initial release of the software. During its life, various fixes and updates to the software occur, and these are captured as Hotfixes (sometimes known as "ISRs").

    If you install a Hotfix release using InstallScape then it automatically downloads whatever components it needs from the Hotfix release, plus any components that still remain from the Base release. Often by a later hotfix not much of the Base release remains - because most things will have changed during the lifetime of a release.

    You certainly do not need to install the Base release first and then apply the Hotfix to it.

    Note that if you choose to install by downloading complete images rather than letting InstallScape download for you, then you may have to download the images for both the hotfix and the base release (so this is less efficient, because you download a lot of stuff that is not needed); you would start by installing the Hotfix, and then it will prompt you if it needs the image for the Base release (I haven't tried this for a while, so I can't remember whether IC615 Hotfix needs the base release at all).

    Hope that helps. Not sure what this has to do with the original question - please pay attention to the Forum Guidelines (the first post in each forum) which politely asks you not to post on the end of old threads.

    Regards,

    Andrew.

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  • Ryan66
    Ryan66 over 10 years ago

    Thanks Andrew for your help. And I m sorry, I m new in this forum.

    I post my question here because I have the same case and problem in this post. I installed cadence IC 6.15 Base, only (without Hotfix), with MMSIM 12.10 in ubunto 12.04 (32bits). And, in the simulation of my circuit, I got the same message error :

    ERROR (ADE-3036): Errors encountered during simulation. The simulator run log has not been generated. Possible cause could be an invalid command line option for the version of the simulator you are running. Choose Setup->Environment and verify that the command line options specified in the userCmdLineOption field are supported for the simulator. Alternatively, run the simulator standalone using the runSimulation file in the netlist directory to know the exact cause of the error.

    When I run "runSimilation" in the netlist directory, I get this message:

    cds_root: cds_root: cannot execute [Erreur de format pour exec()]
    FATAL: Unable to find the Cadence software in your $PATH.

    After readinf your reply, I think that the problem is in my installation (I installed the Base instead Hotfix). Please, what s the supported system (OS) for cadence virtuso?

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  • Andrew Beckett
    Andrew Beckett over 10 years ago

    It's not Virtuoso you're having the issue with, but MMSIM. The issue is that MMSIM11.1 and later require a 64-bit OS, and you're trying to run on a 32-bit OS. Given that no recent hardware has been 32-bit, you're either running on a very old machine, or have installed a 32-bit OS on it for some peculiar reason. There may be other issues too, but if running "spectre" from the command line (which is what runSimulation does) fails, then that's where you need to start.

    Note that Ubuntu is not supported at all by any Cadence product; that's not your issue here, but it quite likely will lead to problems.

    The platform support matrix is here:

    Regards,

    Andrew.

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