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batch launch of ocean -restore script.ocn & issue with the netlisting (input.scs, amap/ ?)

samung

 

Hello !!

 

I am launching a script .ocn to do some spectre simulation : qs ocean -restore script.ocn in which I have written (xxx to remove the real names...):

 

script.ocn :

 

simulator( 'spectre )

design( "xxx/netlist")

resultsDir( "xxx/results/" )

 

stimulusFile( ?xlate nil

    "xxx/_graphical_stimuli.scs")

analysis('tran ?stop "100n" )

desVar( "wn1" 100n "ln1" 10n "wn2" 80n "ln2" 30n ... "nmos_tran_model_vth" "nsvtlp" ...)

definitionFile( ".../models.scs" )

temp( 200)

converge( 'ic "out_b" 0 )

converge( 'ic "out" 1.1 )

envOption(

'analysisOrder  list("tran") 

)

 

save( 'v "out" "out_b" ... "vss" "vri" "vli" )

 

run()

 

 

In the same directory, containing the above script, I have :

corners.scs                  hiddenOptions.scs            models.scs                   results/

_graphical_stimuli.scs       importNetlist.scs            script.ocn             setupCornersIncludeFile.scs netlist

 

The netlist content :

 

// Library name: xxx

// Cell name: inv

// View name: schematic

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) pmos_tran_model_vth w=wp*10e5 l=lp*10e5 nfing=pfolds mult=1 \

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

M2 (YN A1 vss vpw) nmos_tran_model_vth w=wn*10e5 l=ln*10e5 nfing=nfolds mult=1 \

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

ends inv

// End of subcircuit definition.

 

// Library name: xxx

// Cell name: ncx

// View name: schematic

subckt ncx ncx

ends ncx

// End of subcircuit definition.

 

// Library name: Test

// Cell name: xxx

// View name: schematic

Rleft (vli saout_b) resistor r=Rleft

M2 (out saeqi saout_b vpw) nmos_tran_model_vth w=wn1 l=ln1 nfing=1 mult=1 \

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

...

M0 (out net07 vss vpw) nmos_tran_model_vth w=wndiff l=lndiff nfing=1 mult=1 \

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

M4 (vli saeni vdd vnw) pmos_tran_model_vth w=wpen l=lpen nfing=1 mult=1 srcefirst=1 \

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

M3 (vri saeni vdd vnw) pmos_tran_model_vth w=wpen l=lpen nfing=1 mult=1 srcefirst=1 \

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

I1 (out_b net08 vdd vnw vpw vss) inv wp=xxx lp=xxx pfolds=1 wn=xxx \

        ln=xxx nfolds=1

...

V0 (net07 aout_b) vsource dc=xxx type=dc

...

I2 (net09) ncx

 

 

I cannot succeed in launching without any error the simulation :

 

log :

 

...

Simulating `input.scs' on clusts04 at 4:05:12 PM (process id:

        13569).

 

Notice from spectre in `ncx', during circuit read-in.

    "input.scs" 29: Subcircuit 'ncx' is empty.

 

 

Time for NDB Parsing: CPU = 761.883 ms, elapsed = 1.48527 s.

Time accumulated: CPU = 761.883 ms, elapsed = 1.48527 s.

Peak resident memory used = 30 Mbytes.

 

 

Error found by spectre during hierarchy flattening.

    ERROR (SFE-23): "input.scs" 37: M2 is an instance of an undefined model

        nsvtlp.

    ERROR (SFE-23): "input.scs" 39: M1 is an instance of an undefined model

        nsvtlp.

    ERROR (SFE-23): "input.scs" 41: M0 is an instance of an undefined model

        nsvtlp.

    ERROR (SFE-23): "input.scs" 43: M4 is an instance of an undefined model

        psvtlp.

    ERROR (SFE-23): "input.scs" 45: M3 is an instance of an undefined model

        psvtlp.

Error found by spectre in `inv':`I1', during hierarchy flattening.

    ERROR (SFE-23): "input.scs" 18: I1.M5 is an instance of an undefined model

        psvtlp.

    ERROR (SFE-23): "input.scs" 20: I1.M2 is an instance of an undefined model

        nsvtlp.

Error found by spectre in `inv':`I0', during hierarchy flattening.

    ERROR (SFE-23): "input.scs" 18: I0.M5 is an instance of an undefined model

 

 

I would like to be able to launch sucessfully the simulation without any amap/ directory. To do it, I have tried to remove in the script.ocn, the "/" from /out for example.

I don't undertsand why I should, mandatory, use an input.scs file, and once the command launched, I don't have any input.scs file created.

 

Do you think this is possible ?

 

Thanks a lot !!

 

Pete

 

 

Parents

  • From what you've described, the desVar() which is setting  "nmos_tran_model_vth" "nsvtlp" wouldn't alter the model instances in the netlist, unless you have some subckt models defined somewhere which uses "analogmodel" to switch the models by a parameter.

    Either way, it appears that your ../models.scs file is not defining all the models that the design needs.

    There's no need to supply an input.scs - you should be able to supply "netlist". No need for amap either - that's only if you want to be able to use schematic names in your plots and so on, where that mapping was captured during netlisting.

    So it's not that clear what your problem is, other than that you have devices which are referencing models that it can't find in the resulting "input.scs" that gets generated by OCEAN, or in any of the files that it includes.

    Kind Regards,

    Andrew.

Reply

  • From what you've described, the desVar() which is setting  "nmos_tran_model_vth" "nsvtlp" wouldn't alter the model instances in the netlist, unless you have some subckt models defined somewhere which uses "analogmodel" to switch the models by a parameter.

    Either way, it appears that your ../models.scs file is not defining all the models that the design needs.

    There's no need to supply an input.scs - you should be able to supply "netlist". No need for amap either - that's only if you want to be able to use schematic names in your plots and so on, where that mapping was captured during netlisting.

    So it's not that clear what your problem is, other than that you have devices which are referencing models that it can't find in the resulting "input.scs" that gets generated by OCEAN, or in any of the files that it includes.

    Kind Regards,

    Andrew.

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