Learning Forum

[Meagan Stewart]

Hi there, I've been trying to run this varFDTD program from the optics launcher, but every time I try to run it the program crashes before it's able to complete the optimization. I haven't changed any of the values and have been following the steps here, and I have been monitoring my memory usage but it doesn't seem to be the issue. Does anyone know if there is anything I can do to prevent this, or if there is another Lumerical example that does something similar? Thank you so much!

[Dev]

Hello Meagan, 

Can you please sepecify at which step the program is crashing?

Thanks and regards

Devika

[Meagan Stewart]

Hi Devika, it crashes at a different spot each time with no consistency. I've attempted to run a similar y-junction program, the inverse design, and it is crashing in the same way also at different spots. For some reason, the 3D FDTD runs fine without crashing but I cannot get the 2.5D varFDTD to complete an optimization run. I have also tried running the varFDTD ring resonator example, and the program crashes when trying to run both the nested parameter sweep and the Monte Carlo analysis. However, I have created a straight waveguide file to test the varFDTD solver, and it was able to complete a regular parameter sweep of y_span vs T. Any help you might have would be greatly appreciated, thank you!