Can't run burgers - gradient calculation failure about event_based_optical_flow HOT 9 CLOSED

Hi, can you tell me the version of python, torch, and scipy? And are you using CUDA?

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python 3.10.8
torch 1.13.0
scipy 1.9.3
No CUDA.

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same issue:
python 3.8.15
torch 1.13.0+cu116
scipy 1.8.1

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Hmm, thank you for reporting.

My environment is as followings:

Python 3.9.14
scipy==1.9.1
torch==1.12.1
torchvision==0.13.1

And it works.

I just tested with torch 1.13.0 and got the same error that you faced.

Can you try installing torch 1.12.1 (or any version before 1.13)?

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Please let me know if downgrading pytorch version solves the error in your environment - then I will add it to the dependency.

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@LupusTheCanine @Zehaoc Hi, any update on this?

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Hey, I will close this issue if you don't respond.
Please check the torch version and reopen this issue if you still have issues. Thanks!

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Sorry for late reply. Downgrading torch helps.

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By the way, I quickly checked torch 2.0.0 worked. Maybe torch 1.13.0 has some bugs.

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