Stats

  • Locked Locked
  • Replies 13
  • Subscribers 125
  • Views 18821
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Global variable sweep in Monte carlo analysis

sidm

Hi All, 

I am trying to run MC (Monte carlo ) simulation on a design. 

I am unable to sweep a Global variable in MC simulation unlike corner analysis. 

Can anyone please suggest a way to perform MC simulation along with sweeping global variable ?

Any details will be great help. 

thanks

  • Andrew Beckett
    in reply to monkeydliren

    This is nothing to do with the monte carlo being involved in the sweep. It's because your sweep definition is invalid. You've asked to sweep from 1.9 to 2.2 with a step of 0.5. There is only 0.3 between 1.9 and 2.2, so a step size of 0.5 is too large.

    What should be happening is that ADE should complain about the invalid sweep, but it doesn't in this case (I'll file a change request to correct that, because it doesn't seem to have come up before). Other invalid sweep setups do get flagged.

    If you pick a smaller step size (i.e. one smaller than the interval between the From and the To ) it should work - assuming you're not using a very old IC617 version. You didn't mention which version you're using.

    Andrew.

  • Andrew Beckett
    in reply to Andrew Beckett

    I filed CCR 2298625  to get the invalid sweep handled properly (if you'd have just put 1.9:0.5:2.2 without the from/to stuff around it, it would have simply simulated the first point) or to flag an error appropriately.

    Andrew.

  • monkeydliren
    in reply to Andrew Beckett

    Dear Mr. Beckett

    Thank you for filing the change request. And you are absolutely right, that was my negligence, and with step size as 0.05, it worked without a problem.

    Thanks a lot for pointing it out

    Best regards

    Ren

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.