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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

  • Hi Andrew !!

    Thanks for your quick reply.

    I checked if the issue was coming from "desVar() which is setting  "nmos_tran_model_vth" "nsvtlp" wouldn't alter the model instances in the netlist", it's not coming from here. I replaced the "nmos_tran_model_vth"  by nsvtlp for example and I have the same errors in the log.  Plus, this strategy is working with a cadence database (I mean the working directory is the Analog Environment one). But, in my case I have to recreate this simulation environment : netlist, script.ocn, graphical_stimuli... because I try to evaluate different netlist as input (different mos sizes, models...).

    Then, I am investigating  on the "it appears that your ../models.scs file is not defining all the models that the design needs". I will comment soon on it.

    Hopefully, you say that I don't need any mapping file. Indeed, I don't want to recreate also all the mapping files environment.

    Thanks.

     

    pete 

Reply

  • Hi Andrew !!

    Thanks for your quick reply.

    I checked if the issue was coming from "desVar() which is setting  "nmos_tran_model_vth" "nsvtlp" wouldn't alter the model instances in the netlist", it's not coming from here. I replaced the "nmos_tran_model_vth"  by nsvtlp for example and I have the same errors in the log.  Plus, this strategy is working with a cadence database (I mean the working directory is the Analog Environment one). But, in my case I have to recreate this simulation environment : netlist, script.ocn, graphical_stimuli... because I try to evaluate different netlist as input (different mos sizes, models...).

    Then, I am investigating  on the "it appears that your ../models.scs file is not defining all the models that the design needs". I will comment soon on it.

    Hopefully, you say that I don't need any mapping file. Indeed, I don't want to recreate also all the mapping files environment.

    Thanks.

     

    pete 

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