Question for DFSPH_diff*.py

[BinglunWang]

Hi team,

Hope this message finds you well!

Thank you for your work. I really like your paper DiffFR, and hope to try to implement it in Taichi. May I ask 2 questions for your code:

1. May I know is the DFSPH.py the final forward DFSPH code in your paper DiffFR?

2. And I found it has another 3 files 'DFSPH_diff.py' , 'DFSPH_diff2.py' and 'DFSPH_diff_forward.py', may I know what are the difference in this files. And which one should be your final differentiable code in DiffFR paper?

Best wishes,
Binglun