Commit Graph

3 Commits

Author SHA1 Message Date
Ahmed Aly
f8778aef78 Implement a Caffe2 standalone LSTM operator (#17726)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17726

Pull Request resolved: https://github.com/pytorch/pytorch/pull/17725

Pull Request resolved: https://github.com/pytorch/pytorch/pull/17461

Implementing a standalone LSTM Operator in Caffe2 adopted from this Aten implementation: diffusion/FBS/browse/master/fbcode/caffe2/aten/src/ATen/native/RNN.cpp. The most tricky thing in this exercise was that caffe2::Tensor has no copy constructor that made it necessary to implement a custom templated copy constructor for the different Tensor containers used in the code. Also there was no way to use off-the-shelf C2 operators in my code easily so I had to copy some code that is doing basic matmul, cat, split, transpose and linear as utility functions.

Two things missing:

- Profiling this implementation against the current ONNXified LSTM op
- Make this operator available to use in PyTorch

Reviewed By: dzhulgakov

Differential Revision: D14351575

fbshipit-source-id: 3b99b53212cf593c7a49e45580b5a07b90809e64
2019-03-07 01:08:49 -08:00
Soumith Chintala
507c93bad2 Revert D14160172: Implement a Caffe2 standalone LSTM operator
Differential Revision:
D14160172

Original commit changeset: c33e3f9e8aea

fbshipit-source-id: cffe35d93f0ac75ca93aa98a3b82af3d372f2fc1
2019-03-06 08:44:25 -08:00
Ahmed Aly
bfe7a58f69 Implement a Caffe2 standalone LSTM operator (#17461)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17461

Implementing a standalone LSTM Operator in Caffe2 adopted from this Aten implementation: diffusion/FBS/browse/master/fbcode/caffe2/aten/src/ATen/native/RNN.cpp. The most tricky thing in this exercise was that caffe2::Tensor has no copy constructor that made it necessary to implement a custom templated copy constructor for the different Tensor containers used in the code. Also there was no way to use off-the-shelf C2 operators in my code easily so I had to copy some code that is doing basic matmul, cat, split, transpose and linear as utility functions.

Two things missing:

- Profiling this implementation against the current ONNXified LSTM op
- Make this operator available to use in PyTorch

Reviewed By: dzhulgakov

Differential Revision: D14160172

fbshipit-source-id: c33e3f9e8aeae578b64d97593cb031a251216029
2019-03-05 17:34:44 -08:00