Comments (4)
I find the main issue is the broyden method can not converge to cvg_thresh(1e-5). Many (xd_opt -xd_tgt) coverage to 1e-4 trained on RTX3090, pytorch1.7.0. I do not know how to solve it, could you give me some suggestion?
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Hi @lingtengqiu, I've actually encountered the same problem on RTX3080. Later I switched to RTX2080 and haven't gotten the problem anymore. It seems to be a low-level problem and even hardware dependent, I am sorry that I don't really know how to solve this for RTX30xx.
The training curve for PyTorch1.6 seems good - is it also trained with RTX3090? and how does the result look qualitatively? if the qualitative result looks good then I would suggest just using PyTorch1.6. If there are incompatibilities between the code and PyTorch1.6 I am happy to resolve them.
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Thanks for your detailed answer.
The training curve for pytorch1.6 is the result of the model trained on RTX2080 and A-100. I find the main issue is the broyden method on RTX-30 series could not converge to 1e-5 (which leads to the number of valid verts is small, many pts are unable to train). If I modify the cvg_thresh to 1e-3, the training curve is good on RTX-30. I guess it is the implementation of graphic computing is different on 3090 ,compared with other devices.
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Thank you for the information. Then it's probably easiest to change GPU ( Given that A100 also works fine for you, I suspect that any model earlier than 8.6 should be okay https://en.wikipedia.org/wiki/CUDA#:~:text=A100%2040GB%2C%20A30-,8.6,-GA102%2C%20GA104%2C%20GA106)
Setting a larger cvg_thresh (e.g. 1e-3) on RTX30xx might cause problems based on my experience - you might get artifacts (noisy spikes) on the output mesh because the loose cvg_thresh could introduce false correspondences.
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