Port autograd code for rnnt #3970
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/audio/3970
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NicolasHug
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Jul 11, 2025
NicolasHug
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Jul 14, 2025
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Thanks for the PR @samanklesaria , this looks good. I still see uses of torch::autograd within src/libtorchaudio/rnnt:
~/dev/audio (port_rnnt*) » git grep autograd src/libtorchaudio/rnnt/ nicolashug@nicolashug-fedora-PF2MMKSN
src/libtorchaudio/rnnt/autograd.cpp: static torch::autograd::tensor_list backward(
src/libtorchaudio/rnnt/autograd.cpp: torch::autograd::AutogradContext* ctx,
src/libtorchaudio/rnnt/autograd.cpp: torch::autograd::tensor_list grad_outputs) {
I suspect these can already be removed? We should try to remove the entire src/libtorchaudio/rnnt/autograd.cpp if we can.
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Yes, they can be removed. Good catch. |
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