Author Topic: IdVd Characteristics calculation -Error Message  (Read 60 times)

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Offline chitrapandy

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IdVd Characteristics calculation -Error Message
« on: November 11, 2019, 03:10 »
Hi,

I am trying to calculate IdVd characteristics  and ended with this error.
I used this tutorial as reference and try to rectify the error message to call update () first.
Still I am getting the same error.

https://docs.quantumatk.com/manual/Types/IVCharacteristics/IVCharacteristics.html
https://docs.quantumatk.com/tutorials/ivcharacteristics/ivcharacteristics.html#ivcharacteristics

Please suggest the solution for this error.


Traceback (most recent call last):
  File "zipdir\NL\GUI\MainWindow\LabFloor\LabFloorModel.py", line 333, in load
  File "C:\Program Files\QuantumATK\QuantumATK-P-2019.03-SP1\Lib\site-packages\AddOns\ATKDataReader\ATKDataReader.py", line 363, in load
    data._readHeavyweightData()
  File "zipdir\NL\Study\Study.py", line 430, in _readHeavyweightData
  File "zipdir\NL\IO\NLSaveUtilities.py", line 853, in nlread
  File "zipdir\NL\IO\HDF5.py", line 544, in readHDF5
  File "zipdir\NL\IO\HDF5.py", line 644, in readHDF5Group
  File "zipdir\NL\IO\Serializable.py", line 338, in _fromVersionedData
  File "zipdir\NL\IO\Serializable.py", line 436, in __initFromVersionedData
  File "zipdir\NL\Study\IVCharacteristics.py", line 1870, in __finalizeObject
  File "zipdir\NL\Study\Study.py", line 554, in _refreshDataCache
  File "zipdir\NL\Study\Study.py", line 195, in add
  File "zipdir\NL\Study\IVCharacteristics.py", line 220, in _process
  File "zipdir\NL\Calculators\Interfaces\CalculatorInterface.py", line 94, in isConverged
  File "zipdir\NL\Calculators\Interfaces\CalculatorInterface.py", line 155, in _convergenceInformation
NL.ComputerScienceUtilities.Exceptions.NLError: No convergence information available. Call "update()" first.

Thank you
Chitra
« Last Edit: November 11, 2019, 08:20 by chitrapandy »

Offline Petr Khomyakov

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Re: IdVd Characteristics calculation -Error Message
« Reply #1 on: November 11, 2019, 09:09 »
Please describe in a step-by-step manner what you did to get this error message. Also, attach your python scripts and related log files.

Offline chitrapandy

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Re: IdVd Characteristics calculation -Error Message
« Reply #2 on: November 11, 2019, 09:19 »
Hi,

I have already attached my python script file.
Here I have created a GAA device structure using SiNW.
Trying to simulate the Id Vd curve for zero bias condition for varying Vd from 0 to 1V using IV characteristics study object.
Pls find the log file attached.
chitra


Offline Petr Khomyakov

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Re: IdVd Characteristics calculation -Error Message
« Reply #3 on: November 12, 2019, 09:47 »
One should set a restart configuration in a different way for the IVCharacteristics study object, see setCalculator(gate_source_voltage, drain_source_voltage, calculator, initial_state=None) in the manual https://docs.quantumatk.com/manual/Types/IVCharacteristics/IVCharacteristics.html, as well as your modified script attached.

I would also recommend to avoid using filename names with spaces. The latter can always be replaced with underscore "_" or dash "-", for instance.