I’m looking for your kind assistance in this subject matter.
I tried to run an example file with some modification [https://kb.lumerical.com/en/modulators_ferroelectric.html ]
However, it keeps on prompting unknown parallel error as shown below.
The program terminated due to an error: Initialization failed to converge charge update due to numerical failure.ferroelectric_modulatoLiNbO3.ldev (7.3 MB)
** Error: there was an unknown parallel error. The error code is 9010, the process number is 0**
I have modified the file for LiNbO3 material. I have attached the modified fine in here.
It would be great if you can give some solution.