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Ocean script nested parametric analysis problem

SungjoonK

Hi 

I have problem in running nested parametric analysis in ocean script.

Single loop parametric analysis is OK. 

With nested loop, it shows problem. The ocean script is generated from ADE  Parametric analysis window with FILE->Save Ocean Script  (See below)

analysis('tran ?stop "6n" ?errpreset "conservative" )
desVar( "b1" 1 )
desVar( "b2" 0 )
desVar( "b3" 0 )
desVar( "b4" 0 )
desVar( "vctl" 0.65 )
desVar( "vddd" 1.0 )
desVar( "b0" "vddd" )
envOption(
'analysisOrder list("tran") 
)
save( 'v "/vcoout" "/vcooutb" "/I2/ring<0:2>" )
converge( 'ic "/I2/ringc<0>" "0" )
temp( 27 ) 
paramAnalysis("b3" ?values '(0 1.2 )
paramAnalysis("b2" ?values '(0 1.1 )
paramAnalysis("b1" ?values '(0 1.2 )
paramAnalysis("b0" ?values '(0 1 )
paramAnalysis("vctl" ?values '(0.4 0.5 0.6 0.7 0.8 0.9 1 )
)))))
paramRun()

The first run is OK.   for the variable value of b3=0, b2=0, b1=0, b0=0, vctl=0.4

However, for the next loop, where b3=0, b2=0, b1=0, b0=0, vctl=0.5   it shows problem.

The error message is 

Opening the PSFASCII file
../b3=0,b2=0,b1=0,b0=1,vctl=0.5/psf/subckts.info.subckts ...
t.ERROR (ADE-4000): Cannot complete the simulation run because there seems to be some problem with the
Spectre executable. Ensure that the Spectre installation is correct and then rerun the simulation.
For further assistance, contact Cadence Customer Support.
Delete psf data in /home/kims/simulation/ringvco_alt1_sim_sk/spectre/schematic/b3=0,b2=0,b1=0,b0=1,vctl=0.6/psf.
simulate...

Warning from spectre.
WARNING (SPECTRE-17101): The value 'psf' specified using the
'checklimitdest' option will no longer be supported in future
releases.

Can anyone help me?

Best

   

Parents
  • Andrew Beckett

    Not sure what version you're using, but I see the same problem using IC618 ISR5 (haven't checked with ISR6 yet because I've not quite finished installing it on my local machine). This appears to be a bug, because the simulations are actually running, bit OCEAN is getting confused about seeing the results. I suggest you contact customer support to see if this can be fixed.

    If I do:

    envSetVal("spectre.envOpts" "controlMode" 'string "batch")

    at the beginning of the OCEAN script (before the simulator('spectre) call) then it works OK for me. It's just in the default "interactive" mode I see the problem.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    Not sure what version you're using, but I see the same problem using IC618 ISR5 (haven't checked with ISR6 yet because I've not quite finished installing it on my local machine). This appears to be a bug, because the simulations are actually running, bit OCEAN is getting confused about seeing the results. I suggest you contact customer support to see if this can be fixed.

    If I do:

    envSetVal("spectre.envOpts" "controlMode" 'string "batch")

    at the beginning of the OCEAN script (before the simulator('spectre) call) then it works OK for me. It's just in the default "interactive" mode I see the problem.

    Regards,

    Andrew.

Children
  • SungjoonK
    in reply to Andrew Beckett

    Thank you so much Andrew

    It is working now with the addition of the one line you suggested.

    Sungjoon 

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