Stats

  • Locked Locked
  • Replies 9
  • Subscribers 126
  • Views 16844
  • 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

Anyone done trim-and-sim with Monte Carlo?

swdesigner

Is it possible to run a monte-carlo simulation with two extractions per sample?

The tool generates a set of values for the variables (process/mismatch) per sample. The question is, can I, for this sample, take a measurement, based on that measurement, set some user-variables to non-default values and run another sim to take another measurment (maybe at a different temperature)?

This is what happens in the real world on silicon - you're going to trim your circuit at room-temp and look at it at different temps regardless of what the process/mismatch are for a particular unit.

How difficult is this? Can we add such capability soon?

 

Thanks

Parents

  •  > spectre -V
    @(#)$CDS: spectre  version 7.1.0 32bit 04/21/2009 11:50 (sjfdl189) $

    I don't see this on the options form though.  My options are :

     Sim interval parameters : start, outputstart

    Time step params : step, maxstep

    Initial Condition Params : ic : dc,node, dev,all ; skipdc : yes, no, rampup, autodc, waveless, sigrampup; readic

    Convergence params : readns, cmin

    State file params : write, writefinal, saveclock, saveperiod, savetime, savefil, recover

    Integration method params : method : euler, etc

    Accuracy params : realref: pointlocal, alllocal, etc; iteratio

    Annotation params : stats, annotate : no,title,sweep, status, steps

     Output params : save : selected,lvlpub,lvl,allpup, all; nestlvl; oppoint : rawfile, screen,logfile, no; skipstart, skipstop, skipcount, strobeperiod, strobedelay, compression, infotimes, flushpoints, flushtime, flushofftime, actimes, acnames

    Newton params : maxiters, restart 

    Captab params : captab

    Additional params : additionalParams 

     

Reply

  •  > spectre -V
    @(#)$CDS: spectre  version 7.1.0 32bit 04/21/2009 11:50 (sjfdl189) $

    I don't see this on the options form though.  My options are :

     Sim interval parameters : start, outputstart

    Time step params : step, maxstep

    Initial Condition Params : ic : dc,node, dev,all ; skipdc : yes, no, rampup, autodc, waveless, sigrampup; readic

    Convergence params : readns, cmin

    State file params : write, writefinal, saveclock, saveperiod, savetime, savefil, recover

    Integration method params : method : euler, etc

    Accuracy params : realref: pointlocal, alllocal, etc; iteratio

    Annotation params : stats, annotate : no,title,sweep, status, steps

     Output params : save : selected,lvlpub,lvl,allpup, all; nestlvl; oppoint : rawfile, screen,logfile, no; skipstart, skipstop, skipcount, strobeperiod, strobedelay, compression, infotimes, flushpoints, flushtime, flushofftime, actimes, acnames

    Newton params : maxiters, restart 

    Captab params : captab

    Additional params : additionalParams 

     

Children
No Data

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.