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spectremdl montecarlo simulations, how to fix my errors ?

samung
Hello,

I would like to launch some montecarlo simulations through spectremdl commandline interface.

I launch :
spectremdl -batch input.mdl -design input.scs -measure mc_results_file/results_file +log mc_log_file.log

I have the errors :
Error found by spectre.
    ERROR: line 11, column 2: syntax error before or at: <eof>
            unrecognised statement
    ERROR (MDL-6): Failed to parse MDL control file, `input.mdl'.

I don't know how I can fix these errors. Could you please help me ?

Thanks !!

Pedro


I have the following files :

###################################
input.mdl :

/* mdl measurement file */


alias measurement tran_meas {
    run tran
    export real test = 1000
}

run montecarlo (numruns=50, variations='mismatch, scalarfile="mc_results.dat", donominal='no) {
    run tran_meas
}


####################################
input.scs :

subckt inv A1 YN vdd vnw vpw vss
...
M5 (YN A1 vdd vnw) psvtlp w=wp*10e5 l=lp*10e5 nfing=pfolds mult=1 \
        srcefirst=1 mismatch=1 lpe=0 numcos=1 numcod=1 ngcon=1
...
M1 (saout_b saout vss vpw) nsvtlp w=wndiff l=lndiff nfing=1 mult=1 \
        srcefirst=1 mismatch=1 lpe=0 numcos=1 numcod=1 ngcon=1
include "./_graphical_stimuli.scs"
ic aout=1 aout_b=0 
simulatorOptions options reltol=1e-3 vabstol=1e-6 iabstol=1e-12 temp=70.0 \
    tnom=27 scalem=1.0 scale=1.0 gmin=1e-12 rforce=1 maxnotes=5 maxwarns=5 \
    digits=5 cols=80 pivrel=1e-3 sensfile="../psf/sens.output" \
    checklimitdest=psf 
tran tran stop=20n write="spectre.ic" writefinal="spectre.fc" annotate=status maxiters=5
finalTimeOP info what=oppoint where=rawfile
modelParameter info what=models where=rawfile
element info what=inst where=rawfile
outputParameter info what=output where=rawfile
designParamVals info what=parameters where=rawfile
primitives info what=primitives where=rawfile
subckts info what=subckts  where=rawfile
save aeni aout aout_b
saveOptions options save=allpub subcktprobelvl=2


Parents

  • Regarding the spectre method (and not the spectremdl  which doesnt work for some unknown reason, cf. above), I display the input.scs from the adexl window. 

    At this time, I have the line :

    export aout_b_max=oceanEval("ymax(v(\"/aout_b\" ?result \"tran\"))")

    which corresponds to the graphical setting I did (meaning the yield, sigma... of the montecarlo runs will be based on a comparison of this aout_b_max and a spec value (not specified in the input.scs)).

    I decide to use this input.scs to launch the montecarlo simu : spectre input.scs +log mc_log_file.log

    And surprise, surprise, I have the above export in error :

    *Error* _ymaxMethod: can't handle _ymaxMethod(nil)

    Error found by spectre during Monte Carlo analysis `mc1'.

        ERROR (SPECTRE-8003): subckts: Error evaluating ocean expression

            `aout_b_max=ymax(v("/aout_b" ?result "tran"))'.

    Unsuccessfully evaluated export statements (based on return code).

    Analysis `mc1' was terminated prematurely due to an error. 

     

     

    In graphical mode, the montecarlo runs occur very well using this input.scs, how it comes in batch mode I have this issue ?

     

    The input.scs file I am using :

     

    // Generated for: spectre

    // Design library name: Test

    simulator lang=spectre

    global 0

    include "corners_SS.scs"

    parameters lndiff=...

    subckt ncx ncx

    ends ncx

    // End of subcircuit definition.

     

    subckt inv A1 YN vdd vnw vpw vss

    parameters wp=xxx lp=xxx pfolds=1 wn=xxx ln=xxx nfolds=1

    M5 (YN A1 vdd vnw) psvtlp w=wp*10e5 l=lp*10e5 nfing=pfolds mult=1 \

            srcefirst=1 mismatch=1 lpe=0 numcos=1 numcod=1 ngcon=1

    ...

     

    I0 (aout net33 vdd vnw vpw vss) inv wp=xxx lp=xxx pfolds=1 wn=xxx \

            ln=xxx nfolds=1

    ...

    Rright (vdd aout) resistor r=Rright

    Rleft (vdd aout_b) resistor r=Rleft

    M0 (aout aout_b vss vpw) nsvtlp w=wndiff l=lndiff nfing=1 mult=1 \

            srcefirst=1 mismatch=1 lpe=0 numcos=1 numcod=1 ngcon=1

    ...

    include "./_graphical_stimuli.scs"

    ic aout=1 aout_b=0 

    simulatorOptions options reltol=1e-3 vabstol=1e-6 iabstol=1e-12 temp=70.0 \

        tnom=27 scalem=1.0 scale=1.0 gmin=1e-12 rforce=1 maxnotes=5 maxwarns=5 \

        digits=5 cols=80 pivrel=1e-3 sensfile="../psf/sens.output" \

        checklimitdest=psf 

    mc1 montecarlo numruns=1 seed=12345 variations=mismatch sampling=standard \

        donominal=yes scalarfile="../monteCarlo/mcdata" \

        paramfile="../monteCarlo/mcparam" savemismatchparams=yes \

        mismatchparamfile="../monteCarlo/mismatchparam" \

        mismatchscalarfile="../monteCarlo/mismatchdata" \

        dumpdependency=mismatch \

        dependencymapfile="../monteCarlo/mismatchdependency" \

        savefamilyplots=yes savedatainseparatedir=yes {

    tran tran stop=20n write="spectre.ic" writefinal="spectre.fc" \

        annotate=status maxiters=5 

    finalTimeOP info what=oppoint where=rawfile

    modelParameter info what=models where=rawfile

    element info what=inst where=rawfile

    outputParameter info what=output where=rawfile

    designParamVals info what=parameters where=rawfile

    primitives info what=primitives where=rawfile

    subckts info what=subckts  where=rawfile

    export aout_b_max=oceanEval("ymax(v(\"/aout_b\" ?result \"tran\"))")

    }

    mcOptions options genmcdep=yes

    saveOptions options save=allpub subcktprobelvl=2 

     

    Thanks & best regards !! 

Reply

  • Regarding the spectre method (and not the spectremdl  which doesnt work for some unknown reason, cf. above), I display the input.scs from the adexl window. 

    At this time, I have the line :

    export aout_b_max=oceanEval("ymax(v(\"/aout_b\" ?result \"tran\"))")

    which corresponds to the graphical setting I did (meaning the yield, sigma... of the montecarlo runs will be based on a comparison of this aout_b_max and a spec value (not specified in the input.scs)).

    I decide to use this input.scs to launch the montecarlo simu : spectre input.scs +log mc_log_file.log

    And surprise, surprise, I have the above export in error :

    *Error* _ymaxMethod: can't handle _ymaxMethod(nil)

    Error found by spectre during Monte Carlo analysis `mc1'.

        ERROR (SPECTRE-8003): subckts: Error evaluating ocean expression

            `aout_b_max=ymax(v("/aout_b" ?result "tran"))'.

    Unsuccessfully evaluated export statements (based on return code).

    Analysis `mc1' was terminated prematurely due to an error. 

     

     

    In graphical mode, the montecarlo runs occur very well using this input.scs, how it comes in batch mode I have this issue ?

     

    The input.scs file I am using :

     

    // Generated for: spectre

    // Design library name: Test

    simulator lang=spectre

    global 0

    include "corners_SS.scs"

    parameters lndiff=...

    subckt ncx ncx

    ends ncx

    // End of subcircuit definition.

     

    subckt inv A1 YN vdd vnw vpw vss

    parameters wp=xxx lp=xxx pfolds=1 wn=xxx ln=xxx nfolds=1

    M5 (YN A1 vdd vnw) psvtlp w=wp*10e5 l=lp*10e5 nfing=pfolds mult=1 \

            srcefirst=1 mismatch=1 lpe=0 numcos=1 numcod=1 ngcon=1

    ...

     

    I0 (aout net33 vdd vnw vpw vss) inv wp=xxx lp=xxx pfolds=1 wn=xxx \

            ln=xxx nfolds=1

    ...

    Rright (vdd aout) resistor r=Rright

    Rleft (vdd aout_b) resistor r=Rleft

    M0 (aout aout_b vss vpw) nsvtlp w=wndiff l=lndiff nfing=1 mult=1 \

            srcefirst=1 mismatch=1 lpe=0 numcos=1 numcod=1 ngcon=1

    ...

    include "./_graphical_stimuli.scs"

    ic aout=1 aout_b=0 

    simulatorOptions options reltol=1e-3 vabstol=1e-6 iabstol=1e-12 temp=70.0 \

        tnom=27 scalem=1.0 scale=1.0 gmin=1e-12 rforce=1 maxnotes=5 maxwarns=5 \

        digits=5 cols=80 pivrel=1e-3 sensfile="../psf/sens.output" \

        checklimitdest=psf 

    mc1 montecarlo numruns=1 seed=12345 variations=mismatch sampling=standard \

        donominal=yes scalarfile="../monteCarlo/mcdata" \

        paramfile="../monteCarlo/mcparam" savemismatchparams=yes \

        mismatchparamfile="../monteCarlo/mismatchparam" \

        mismatchscalarfile="../monteCarlo/mismatchdata" \

        dumpdependency=mismatch \

        dependencymapfile="../monteCarlo/mismatchdependency" \

        savefamilyplots=yes savedatainseparatedir=yes {

    tran tran stop=20n write="spectre.ic" writefinal="spectre.fc" \

        annotate=status maxiters=5 

    finalTimeOP info what=oppoint where=rawfile

    modelParameter info what=models where=rawfile

    element info what=inst where=rawfile

    outputParameter info what=output where=rawfile

    designParamVals info what=parameters where=rawfile

    primitives info what=primitives where=rawfile

    subckts info what=subckts  where=rawfile

    export aout_b_max=oceanEval("ymax(v(\"/aout_b\" ?result \"tran\"))")

    }

    mcOptions options genmcdep=yes

    saveOptions options save=allpub subcktprobelvl=2 

     

    Thanks & best regards !! 

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