What is the relationship between PyTorch and Torch?

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Just to clarify the confusion between both pytorch repositories:

  • pytorch/pytorch is very similar to (Lua) Torch but in Python. So it's a wrapper over THNN. This was written by Facebook too.
  • hughperkins/pytorch: I have come across this repo when I was developing in Torch before pytorch existed, but I have never used it so I'm not quite sure if it is a wrapper written in Python over (Lua) Torch which is in turn a wrapper over THNN OR a wrapper over THNN and Lua. In both case, this is not the original version of Torch. It was written by Hugh Perkins when there was no Python alternative for Torch.

If you are wondering which one to go for, I would definitely recommend pytorch/pytorch as it communicates directly with THNN, is written by the people who made THNN and is continuously maintained. hughperkins/pytorch does not seem to be maintained anymore.

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