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'while' control flow for large simulation sweep in maestro run plan

cdnspg

Running large simulation sweep with multi-parameters

parm1 p1start:p1step:p1end

parm2 p2start:p2step:p2end

... or parm sweep.

I would like to break out of the simulation sweep triggered by a condition part of output of the same simulation analysis block. Something like a 'while' control flow

        while(condition_in_sim_output, sweep_parm)

             Simulate

with condition to be a pass/fail from a condition in outputs of the simulate block and having corresponding parm values meeting condition on-hand.

The purpose is to reduce the simulations in sweep as the condition can possibly be met early in the sweep.

Any way to implement this simulation flow thru a combination of ocean script code and Run Plan in maestro?

Thanks for helping

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  • Hi,

    I am not sure about the purpose of your param sweep if you want to break it early. Usually you do param sweeps to check out your design space and you want to cover all the points. 

    But if this is a kind of calibration and you search for a param combination meeting your output criteria to run further test on top of it you might want   to  check out
    the option to do OCEAN pre-run scripts. Like this:

    Article (20471693) Title: Techniques for Simulating Calibrated Circuits with Virtuoso ADE Assembler
    URL: https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O0V000006AicEUAS

    We also can autostop simulations using spectremdl scripts or using spice .measure , but these wont stop the whole sweep only single points. 
    You could also try the optimizer to search in a param space.

    Kind regards,

    Marc

Reply

  • Hi,

    I am not sure about the purpose of your param sweep if you want to break it early. Usually you do param sweeps to check out your design space and you want to cover all the points. 

    But if this is a kind of calibration and you search for a param combination meeting your output criteria to run further test on top of it you might want   to  check out
    the option to do OCEAN pre-run scripts. Like this:

    Article (20471693) Title: Techniques for Simulating Calibrated Circuits with Virtuoso ADE Assembler
    URL: https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O0V000006AicEUAS

    We also can autostop simulations using spectremdl scripts or using spice .measure , but these wont stop the whole sweep only single points. 
    You could also try the optimizer to search in a param space.

    Kind regards,

    Marc

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