No .ckpt file

[YanzeZhang97]

Dear authors,

Hope this message finds you well!

I ran your code for the didactic training using the wandb. However, after finishing the traning (finishing traning_didactic.py), I indeed saw the log dir but I did not see the .ckpt file. The file tree is like below. Could you please help to give me more guidance?

Thanks,
Max

[hadar-hai]

Dear authors,
I’ve also tried everything and still no .ckpt file is being created. We would really appreciate your help.

Thanks,
Hadar

[hadar-hai]

Hi,
It could be connected to this change:
- def training_epoch_end(self, outputs: List[dict]) -> None:
+ def on_train_epoch_end(self) -> None:

Here they talk about it:
Lightning-AI/pytorch-lightning#16520

-    def training_epoch_end(self, outputs):
-        epoch_average = torch.stack([output["loss"] for output in outputs]).mean()
+    def on_train_epoch_end(self):
+        epoch_average = torch.stack(self.training_step_outputs).mean()
         self.log("training_epoch_average", epoch_average)
+        self.training_step_outputs.clear()  # free memory

Thanks,
Hadar

[HarukiNishimura-TRI]

Hi @YanzeZhang97 @hadar-hai, thank you for bringing the issue to the attention. Can you try downgrading lighting to v1.8.6 (released Dec 21, 2022) and see if the issue still persists? We have not run the code ourselves for a while and apparently there was a major version change to lightning since we released the code, which might have caused this issue. Since the code is no longer in a status of active development, we would greatly appreciate your contribution to either determine appropriate versions of dependencies or update the code appropriately.

[hadar-hai]

@YanzeZhang97 Did Haruki's response help you?

[YanzeZhang97]

I used pytorch-lightning v1.7.7 and successfully got the .ckpt file. But the reason is still not clear.

[hadar-hai]

@YanzeZhang97 Could you share your pip list? Also, did you clone the latest version of the code from the repo and run training_didactic.py as is, or did you make any changes to the code?
Thank you very much!

[YanzeZhang97]

absl-py 0.15.0
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lit 16.0.6
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zm 1.0
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I just copied all the packages included in my conda env. I guess the best way is to degrade the pytorch-lightning and make everything compatible with this version pytorch-lightning. Just some basic configurations like some paths are modified. But the code version is not the latest.

[hadar-hai]

@YanzeZhang97 thank you very much! What do you mean by "the code version is not the latest"? So which version?

[hadar-hai]

@YanzeZhang97 Is there a way to contact you? I’m having trouble getting a working version that produces ckpt. files. If you could send me the version you have, it would be very helpful. Also, what's your Python version?
Many thanks!

[YanzeZhang97]

@hadar-hai Sorry for the late reply. It is quit busy in the begining of the new semester. The python version is 3.8. For the code, @HarukiNishimura-TRI Would you mind to push the old version code as a new branch so that people can access to the two versions of code? Thanks!

[hadar-hai]

@YanzeZhang97 Thank you! Is it this version: e5fe65f ?

[HarukiNishimura-TRI]

@YanzeZhang97 Thank you for trying it out. It is great to hear that downgrading the lightning version resolved the issue for you. @jmercat has made a few commits lately, trying to resolve some of the issues by making changes to our code. I wonder which commit your local changes are based off of. Is it d363fde or e5fe65f?
(I am guessing it's the latter, because otherwise you would not be able to even import lightning, due to the name change of the package from pytorch_lightning to lightning.pytorch.)

[YanzeZhang97]

Hello @hadar-hai and @HarukiNishimura-TRI,
Yes, e5fe65f is the version I successfully implemented. And yes, the package is pytorch-lightning.

[hadar-hai]

Hello @YanzeZhang97, did you change "mmcv" to "mmengine.config"?
If you could kindly send me the working version by mail (hadar.hai@campus.technion.ac.il) it would be greatly appreciated.
I created the same conda environment as you, used python 3.8 and e5fe65f as is and there are still some problems.

[jmercat]

Hello @hadar-hai and @YanzeZhang97.
I looked into how to install the correct versions of everything instead of trying to update the code to the new versions of pytorch-lightning (which was a mess, sorry about that). I will never use pytorch-lightning again
For this to work I pushed a roll back of my previous attempt and a new install.sh script that should install the correct packages and hopefully run correctly. It does not work on multiple gpus but I could run a simple training on one gpu on a fresh environment with the new installation script. I hope this helps.
Thanks for the interest in our work. I’m sorry I don’t have much time to maintain this code base. Your contributions are welcome.