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How can I retrieve outputs from expressions in an ADE XL run from ocean

webbyguy

Hi All,

I'm sure this is real simple, but I haven't been able to find it in the documentation.  I probalby just haven't put in the right keywords.  Anyway...

I have a ADEXL simulation that I have run.  It has 30 monte carlo iterations (no corners).  In one of the states I have an output to find the value of a voltage at a time.  It runs fine.

 I am trying to read the result of that expression across all of the iterations with ocean or skill, and I can't find the right functions to do it.  What is the right function to use? 

Parents
  • Hi Andrew I have the same problem too. I am running Monte Carlo simulation for DC analysis through ADEXL and I am interested in difference between the threshold voltage of two transistors. I formed the expression and to calculate the difference using calculator and when I run the Monte Carlo simulation I am getting the histogram plot but I need to store the value of expression for each iteration into a file for my post processing.

    I am trying to do that using report() command and even using ocnPrint nothing helped out. Hope you could help me in this issue.

    Just for your reference I am posting the ocean script for the analysis


    Regards
    Sarav



    ocnxlTargetCellView( "SARADC_First" "Comparator_2007" "adexl" )
    ocnxlProjectDir( "/grad/ramamoor/simulation" )
    ocnxlResultsLocation( "/grad/ramamoor/cmrf8sf.oa/MC" )
    ocnxlSimResultsLocation( "/grad/ramamoor/cmrf8sf.oa/SARADC_First/Comparator_2007/adexl/results" )

    ;====================== Tests setup ============================================

    ;---------- Test "SARADC_First:Comparator_2007:1" -------------
    ocnxlBeginTest("SARADC_First:Comparator_2007:1")
    simulator( 'spectre )
    design( "SARADC_First" "Comparator_2007" "schematic")
    modelFile(
        '("/cadence/shared/PDK/IBM_PDK/cmrf8sf/relDM/Spectre/models/allModels.scs" "tt")
        '("/cadence/shared/PDK/IBM_PDK/cmrf8sf/V1.7.0.2DM/Spectre/models/design.scs" "")
    )
    analysis('dc ?saveOppoint t  ?sort "name"  ?detail "node" 
            ?threshold "0.0"  ?annotate "status"  ?maxsteps "10000"  ?maxiters "150" 
            ?oppoint "rawfile"  ?write "spectre.dc"  ?rangeType "Start-Stop"  ?incrType "Automatic" 
            ?stepTypeLin "Step Size"  ?stepTypeLog "Points Per Decade"  )
    saveOption( ?saveahdlvars "all" )
    saveOption( 'save "all" )
    temp( 27 )
    ocnxlOutputExpr( "(OP(\"/T11\" \"vth\") - OP(\"/T12\" \"vth\"))" ?name "Vth_diff" ?plot nil ?save t)
    ocnxlEndTest() ; "SARADC_First:Comparator_2007:1"

    ;====================== Sweeps setup ===========================================

    ;====================== Model Group setup ==========================================

    ;====================== Corners setup ==========================================

    ;====================== Job setup ==============================================
    ocnxlJobSetup( '(
        "blockemail" "1"
        "configuretimeout" "300"
        "distributionmethod" "Local"
        "lingertimeout" "300"
        "maxjobs" "1"
        "name" "ADE XL Default"
        "preemptivestart" "1"
        "runtimeout" "-1"
        "showerrorwhenretrying" "1"
        "showoutputlogerror" "0"
        "startmaxjobsimmed" "1"
        "starttimeout" "300"
    ) )

    ;====================== Disabled items =========================================

    ;====================== Run Mode Options ======================================
    ocnxlMonteCarloOptions( ?mcMethod "all" ?mcNumPoints "5" ?samplingMode "random" ?saveAllPlots "1" ?useReference "0" ?donominal "1" ?monteCarloSeed "" ?mcStartingRunNumber "" )

    ;====================== Starting Point Info ======================================

    ;====================== Run command ============================================
    ocnxlRun( ?mode 'monteCarlo ?nominalCornerEnabled t ?allCornersEnabled t ?allSweepsEnabled t)
    ocnxlOutputSummary(?yieldSummary t ?exprSummary nil ?specSummary nil ?detailed nil)

    ;====================== End XL Mode command ===================================
    ocnxlEndXLMode()
Reply
  • Hi Andrew I have the same problem too. I am running Monte Carlo simulation for DC analysis through ADEXL and I am interested in difference between the threshold voltage of two transistors. I formed the expression and to calculate the difference using calculator and when I run the Monte Carlo simulation I am getting the histogram plot but I need to store the value of expression for each iteration into a file for my post processing.

    I am trying to do that using report() command and even using ocnPrint nothing helped out. Hope you could help me in this issue.

    Just for your reference I am posting the ocean script for the analysis


    Regards
    Sarav



    ocnxlTargetCellView( "SARADC_First" "Comparator_2007" "adexl" )
    ocnxlProjectDir( "/grad/ramamoor/simulation" )
    ocnxlResultsLocation( "/grad/ramamoor/cmrf8sf.oa/MC" )
    ocnxlSimResultsLocation( "/grad/ramamoor/cmrf8sf.oa/SARADC_First/Comparator_2007/adexl/results" )

    ;====================== Tests setup ============================================

    ;---------- Test "SARADC_First:Comparator_2007:1" -------------
    ocnxlBeginTest("SARADC_First:Comparator_2007:1")
    simulator( 'spectre )
    design( "SARADC_First" "Comparator_2007" "schematic")
    modelFile(
        '("/cadence/shared/PDK/IBM_PDK/cmrf8sf/relDM/Spectre/models/allModels.scs" "tt")
        '("/cadence/shared/PDK/IBM_PDK/cmrf8sf/V1.7.0.2DM/Spectre/models/design.scs" "")
    )
    analysis('dc ?saveOppoint t  ?sort "name"  ?detail "node" 
            ?threshold "0.0"  ?annotate "status"  ?maxsteps "10000"  ?maxiters "150" 
            ?oppoint "rawfile"  ?write "spectre.dc"  ?rangeType "Start-Stop"  ?incrType "Automatic" 
            ?stepTypeLin "Step Size"  ?stepTypeLog "Points Per Decade"  )
    saveOption( ?saveahdlvars "all" )
    saveOption( 'save "all" )
    temp( 27 )
    ocnxlOutputExpr( "(OP(\"/T11\" \"vth\") - OP(\"/T12\" \"vth\"))" ?name "Vth_diff" ?plot nil ?save t)
    ocnxlEndTest() ; "SARADC_First:Comparator_2007:1"

    ;====================== Sweeps setup ===========================================

    ;====================== Model Group setup ==========================================

    ;====================== Corners setup ==========================================

    ;====================== Job setup ==============================================
    ocnxlJobSetup( '(
        "blockemail" "1"
        "configuretimeout" "300"
        "distributionmethod" "Local"
        "lingertimeout" "300"
        "maxjobs" "1"
        "name" "ADE XL Default"
        "preemptivestart" "1"
        "runtimeout" "-1"
        "showerrorwhenretrying" "1"
        "showoutputlogerror" "0"
        "startmaxjobsimmed" "1"
        "starttimeout" "300"
    ) )

    ;====================== Disabled items =========================================

    ;====================== Run Mode Options ======================================
    ocnxlMonteCarloOptions( ?mcMethod "all" ?mcNumPoints "5" ?samplingMode "random" ?saveAllPlots "1" ?useReference "0" ?donominal "1" ?monteCarloSeed "" ?mcStartingRunNumber "" )

    ;====================== Starting Point Info ======================================

    ;====================== Run command ============================================
    ocnxlRun( ?mode 'monteCarlo ?nominalCornerEnabled t ?allCornersEnabled t ?allSweepsEnabled t)
    ocnxlOutputSummary(?yieldSummary t ?exprSummary nil ?specSummary nil ?detailed nil)

    ;====================== End XL Mode command ===================================
    ocnxlEndXLMode()
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