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monte-carlo simulation running one seed

frogconsultant

Hi All,

I am using 6.1.5 environment and I have ran a monte-carlo simulation over 100 runs yesterday and I load back my results. Some runs have failed and I wish to see more data on these particulars seeds. I went to the monte-carlo options and choose the specific seed number and re-run only this one with monte-carlo.

As a result, I do not have the correct seed environment and so the same results.

How could I re-run a specific seed number from a monte-carlo run with all data such dc voltage, dc operating point, waveforms specified, ...?

Thanks in advance for your help,

Fabian

Parents

  • Hi Fabian,

    The best way is not to mess around with the "seed". If the seed was not set, it defaults to 12345. It's the start run number that you'd want to use, rather than the seed. The seed alters the sequence of random numbers that are generated, and the start run number tells you how far that sequence you are.

    The easiest way is take your full 100 run monte carlo results, switch to Detailed view (rather than Yield), and then over the particular run numbers that failed, do a right-mouse-button->Create Statistical Corner. This will then add into the corners the specific runs which you're interested in.

    Then if you run in Single Run, Sweeps and Corners mode, and have the corners enabled, it will re-run the specific monte carlo points that you're interested in - making it easier to debug them.

    Regards,

    Andrew.

Reply

  • Hi Fabian,

    The best way is not to mess around with the "seed". If the seed was not set, it defaults to 12345. It's the start run number that you'd want to use, rather than the seed. The seed alters the sequence of random numbers that are generated, and the start run number tells you how far that sequence you are.

    The easiest way is take your full 100 run monte carlo results, switch to Detailed view (rather than Yield), and then over the particular run numbers that failed, do a right-mouse-button->Create Statistical Corner. This will then add into the corners the specific runs which you're interested in.

    Then if you run in Single Run, Sweeps and Corners mode, and have the corners enabled, it will re-run the specific monte carlo points that you're interested in - making it easier to debug them.

    Regards,

    Andrew.

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