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How to collect data after MonteCarlo simulation

hippoo

Dear all,

I have performed the following MonteCarlo simulation through the ocean script to capture the current consumption for a time frame from 15ms to 25ms, how is it possible for me to re-collect the data, say from 50ms to 100ms, without re-run the simulation again? I am looking for a ocean script to do that. FYI, I am using IC5141.

Thanks in advance!

ocnWaveformTool( 'wavescan )
simulator( 'spectre )
design( "./design/netlist/netlist" )
resultsDir( "./design" "a" )
modelFile(
     '("./design/models/f35.scs" "tt")
)
analysis('tran ?stop "100m"  ?errpreset "conservative"  )
desVar( "vdd" 2.15 )
option( 'temp  "25.0" )
saveOption( ?outputParamInfo nil )
saveOption( ?elementInfo nil )
saveOption( ?modelParamInfo nil )
saveOption( 'currents "selected" )
saveOption( 'save "selected" )
save( 'v "/OUT" )
save( 'i "/V0/PLUS" )
temp( 25.0 )
monteCarlo( ?numIters "1000" ?startIter "1"
    ?analysisVariation 'processAndMismatch ?sweptParam "Temperature"
    ?sweptParamVals "-20 100" ?saveData t
    ?nomRun nil ?append nil
    ?saveProcessParams t
)

monteExpr( "idd" "average(clip(IT(\"/V0/PLUS\") 15m 25m))" )

monteRun()

  •  Hi,

    i think you can browse the data using Result browser's gui window for the desired result rather changing the script..

    Thanks

  • Hi Kenambo,

    The browser GUI window will not workout if the simulation data is very big, mostly it will clip the waveform for only about 400 iteration.

    Thanks.

  • It shouldn't clip the data - not sure why that would be happening. There is no equivalent of ADE XL's "reevaluate" option in IC5141. So all you can do is build a calculator function which computes a scalar for each iteration, and then use stddev, average, or histogram() on the results ot process it.

    In your case you ought to be able to do:

    stddev(average(clip(IT("/V0/PLUS") 50m 100m))

    average(average(clip(IT("/V0/PLUS") 50m 100m))

    Regards,

    Andrew.

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