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How to print the Monte Carlo iterations results

Micka

Hello,

I am pretty new with writing ocean scripts.

I have a task to run Monte Carlo simulations and print or save results of iterations.

For example, for each input of CMOS_S_BOX I have to find mean value of leackage cuurent,

but I want to have saved these iteration results in a file...Where am I wrong?::

ocnWaveformTool( 'wavescan )
simulator( 'spectre )
design(  "/home/scard/simulation/CMOSSbox_test_new_htype/spectre/schematic/netlist/netlist")
resultsDir( "/home/scard/simulation/CMOSSbox_test_new_htype/spectre/schematic" )
definitionFile(
    "models.scs"
)
analysis('tran ?stop "1u" )
desVar(   "tclk" 1u )
desVar(   "j" 0 )
desVar(   "del" 200n )
option( 'temp  "25.0"
 'iabstol  "1e-14"
 'vabstol  "1e-8"
 'reltol  "1e-6"
)
save( 'i "/V4/PLUS" )
temp( 25.0 )
MCresults = outfile( "/home/scard/results/SBOX_mc_htypefinal/sbox_mc_results.txt" "w")
monteCarlo( ?numIters "10" ?startIter "1" ?analysisVariation 'mismatch ?sweptParam "None" ?sweptParamVals "25" ?saveData t ?nomRun "yes" ?append nil)
monteExpr( "leak" "-average(clip(i(\"/V4/PLUS\" ?result \"tran-tran\") 5e-07 1e-06))" )
monteRun()
Imc_mean = average(-average(clip(i("/V4/PLUS" ?result "tran") 5e-07 1e-06)))
fprintf( MCresults "%3.4f \n" Imc_mean*1e9 );
close(MCresults);
MCresults = outfile( "/home/scard/results/SBOX_mc_htypefinal/sbox_mc_results.txt" "a")
)
close(MCresults)

In this bolded area I am obviously doing mistakes, because in the mcdata file I get same results for all 10 iterations, but running an usual MC simulation I am getting different values...HELP,  PLEASE!!!

Thank you...

Parents

  • What you'll get that way is something like srrWave:NNNN or drwave:NNNN depending on the version you're using.

    If you use the ocnPrint() function, you can print out the values of waveform objects. So I suspect that's what you want.

    Or you could use the abStats.il code I pointed you to in a previous post, and then do:

    mcData=abReadMonteData(strcat(openResults() "/monteCarlo"))
    valtab=mcData->datatab["leak"]
    for(i 0  mcData->N - 1
      fprintf(MCresults "%g\n" valtab[i])
    ) ; for

     

Reply

  • What you'll get that way is something like srrWave:NNNN or drwave:NNNN depending on the version you're using.

    If you use the ocnPrint() function, you can print out the values of waveform objects. So I suspect that's what you want.

    Or you could use the abStats.il code I pointed you to in a previous post, and then do:

    mcData=abReadMonteData(strcat(openResults() "/monteCarlo"))
    valtab=mcData->datatab["leak"]
    for(i 0  mcData->N - 1
      fprintf(MCresults "%g\n" valtab[i])
    ) ; for

     

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