dice loss, backward problem about vnet.pytorch HOT 5 OPEN

Hi @jasw1001 . Did you find any solution for that? It seems it goes to the customized backward function but I cant debug it. My main problem is that I cant use multi-GPU for this backward function (it jumps out without any specific error). Do you have any idea how to used torch.autograde and skip this backward function?

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It seems that the torch.autograde cannot be used in Dice loss function, because some functions in Dice loss fuction are not supported by torch.autograde. For the debug problem, it's a bug in pytorch, so you may use 'ipdb' or 'pdb' to debug it.

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Thanks @jasw1001 . Have you tried to implement your own version of loss function? I have used 'pdb' but it stuck in a line after
#import pdb
#pdb.set_trace()
and never went through next lines. It is very strange for me.

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Hi @jasw1001 @CSMEDEEP
could you give the steps as to how to start the training? The code uses some preprocessed files from the original Luna16 dataset. How do I run the preprocessing?

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@abhiML hello~ i really want to know how to preprocess the dataset LUNA16 to get the files "normalized_brightened_CT_2_5"etc.. , have you figure it out? thanks a lot~`

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