fdtd

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`RuntimeError: Expected all tensors to be on the same device, but found at least two devices, cuda:0 and cpu!`

7

I've tried a minimal example: ``` wavelength = 1e-6 speed_of_light = 277972458 # Initialize FDTD grid grid = fdtd.Grid(shape=(20*wavelength, 50*wavelength, 1), grid_spacing=wavelength/10) # Initialize perfectly matched layer (PML) boundaries grid[0:10,...

kerstin921

ffmpeg not installed?

15

None of your example files will generate a video on Windows. The error `ffmpeg not installed?` is thrown despite [`ffmpeg-python`](https://pypi.org/project/ffmpeg-python/) being installed. I looked up the relevant function `generate_video()` in...

kerstin921

Field in position of source

3

Hi @flaport, Happy New Year! At FDTD calculations I need to periodically change the power of a source (initially F_0) dependently on the local field amplitude E_0. So first I...

GenB31415

Frequency dependent permittivity

16

Hi, thank you very much for this awesome repository! If I understand the code correctly at the moment it's not possible to use Objects with a frequency dependent permittivity (like...

lupettolab

Hello, I found that the calculation results in this project are the amplitude of electromagnetic field, and there is no complex electric field value. What should I do if I...

JenkinLim

parallel computation

2

Hello, Thanks for your work. Is there a way to run this code in parallel on cpu? I assume that it's automatically parallelized if the cuda backend is used. Is...

jjdredd

is the pytorch backend differentiable?

3

Hi, Thanks for making this amazing package, this could be useful. May I ask if the PyTorch backend is differentiable? Thanks.

Ni-Chen

deprecate pytorch backend in favor of JAX

2

JAX might potentially offer considerable speedups and offers better overlap with the numpy api.

flaport

GDS loading on roadmap?

1

Hi @flaport , impressive project! Just wondering if GDS loading is on the roadmap. Thanks a lot!

zeyueN

Use 'quantities' library to handle conversions between simulation units and actual units

13

I'm wondering what the units used for each quantity are, both for parameters which are passed in and for values stored internally or produced by the calculation. A lot of...

aizvorski