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  3. editing input.scs not working

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editing input.scs not working

Rob Gregoire
Rob Gregoire over 11 years ago

Hi folks,

I'm running 6.1.5 and I ocasionally need to edit the simulation netlist (for example, to comment out a parasitic capacitance to debug). In the "old days" you would edit the input.scs and then hit simulation ->run and it would run without generating a new netlist. However, with this version it doesn't always use the input.scs - it seems to have one in memory that it uses. That is, if I go to simulation->netlist->display netlist I get the input.scs file that I modified, but the simulation uses the old one. (Editing the file "netlist" doesn't seem to help either.)

Occasionally I can get it to use the modified one, but I'm not sure exacly what I did to get it to do that. It is difficult to debug when you don't know what netlist is being used! So, what netlist is being used? How do I get it to use one that I've modified? 

 

Thanks, this problem is quite frustrating.

Rob

 

 

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  • Andrew Beckett
    Andrew Beckett over 11 years ago

    Note that this (using runSimulation) won't actually work unless you take into account what I said earlier. If in "interactive" mode (which tito80 wasn't, because aps was being used, the script says:

    # runSimulation scripts generated for spectre interactive are not intended to be used for command line.
    spectre  input.scs +escchars +log ../psf/spectre.out +inter=mpsc +mpssession=spectre0_5417_1  -format psfxl -raw ../psf
    -I/home/username/demos/OCEAN/Models +lqtimeout 900 -maxw 5 -maxn 5

    You'd find that if you ran this, it would hang - because it is waiting to be controlled by ADE. You'd have to either generate the runSimulation script when in "batch" mode, or edit out the  +inter=mpsc +mpssession=spectre0_5417_1 part.

    So it wouldn't have worked for Rob unless the advice I gave had been taken into account.

    Regards,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 11 years ago

    Note that this (using runSimulation) won't actually work unless you take into account what I said earlier. If in "interactive" mode (which tito80 wasn't, because aps was being used, the script says:

    # runSimulation scripts generated for spectre interactive are not intended to be used for command line.
    spectre  input.scs +escchars +log ../psf/spectre.out +inter=mpsc +mpssession=spectre0_5417_1  -format psfxl -raw ../psf
    -I/home/username/demos/OCEAN/Models +lqtimeout 900 -maxw 5 -maxn 5

    You'd find that if you ran this, it would hang - because it is waiting to be controlled by ADE. You'd have to either generate the runSimulation script when in "batch" mode, or edit out the  +inter=mpsc +mpssession=spectre0_5417_1 part.

    So it wouldn't have worked for Rob unless the advice I gave had been taken into account.

    Regards,

    Andrew.

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