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SeqLSTM unstable GPU memory usage #402

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liuxuan0526 opened this issue Mar 5, 2017 · 0 comments
Open

SeqLSTM unstable GPU memory usage #402

liuxuan0526 opened this issue Mar 5, 2017 · 0 comments

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@liuxuan0526
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liuxuan0526 commented Mar 5, 2017 •
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https://github.com/Element-Research/rnn/blob/master/SeqLSTM.lua#L381

  self.grad_next_h = torch.mm(grad_a, Wh:t())

This line keeps allocating new GPU memory, which makes the GPU memory usage unstable.
Replace with an inplace operation?
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