Incubator-mxnet: Intel MKL-DNN RNN Support

[sbodenstein]

MKL-DNN recently got support for RNNs. Are there any plans for adding this as a backend to mx.sym.RNN, and what sort of timeframe? Thanks!

@zheng-da

[TaoLv]

@sbodenstein Thanks for asking that. It's already on our plan list for Q2. Since it's still an experimental interface, we will keep tracking the development progress from mkldnn team.
FYI, we are working intensively on PR #10104 and #10311 to provide fused RNN operator for mxnet before mkldnn RNN interfaces become mature. Hopefully, after mkldnn RNN is integrated into mxnet, code of #10104 and #10311 would still exsit as a reference implementation for cpu. @pengzhao-intel

[Roshrini]

@eric-haibin-lin Can you please add labels-
FeatureRequest, RNN

[azai91]

@sbodenstein we plan on implementing MKL-DNN RNN support when MKLDNN 0.15 is released which should be within the next few weeks.

[sbodenstein]

@azai91: fantastic, thanks so much!

[neverjoe]

Any good news for mkl-dnn rnn support?

[pengzhao-intel]

@neverjoe thanks for the asking.
MKL-DNN provides the RNN API now in the new latest (v0.17) and we have upgraded it to MXNet now.
We have the discussion with @szha for the further integration.

Do you mind providing more details about what's your models and feature requests for MKL-DNN?

[neverjoe]

It's happy to hear that. I am looking for the fastest gru inference
implementation.
Thanks.

PatricZhao [e-mail]于2018年11月13日周二 上午10:53写道：

@neverjoe https://github.com/neverjoe thanks for the asking.
MKL-DNN provides the RNN API now in the new latest (v0.17) and we have
upgraded it to MXNet now.
We have the discussion with @szha https://github.com/szha for the
further integration.

Do you mind providing more details about what's your models and feature
requests for MKL-DNN?

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[neverjoe]

Is there any python test demo for GruForwardInference?

[pengzhao-intel]

There's no python interface, but you can test by mkldnn binary very simple.
https://github.com/intel/mkl-dnn/tree/master/tests/benchdnn

https://github.com/intel/mkl-dnn/commit/3ced2c71fdb06fe4546fe95054d1e766a8addfa7

./benchdnn --rnn --batch=./inputs/rnn/test_rnn_small

In the test file, it includes several configurations:

--reset --alg=VANILLA_GRU
--direction=left2right
--activation=TANH
--prop=FWD_D --batch=rnn_gru_small
--prop=BWD_DW --batch=rnn_gru_small

[neverjoe]

Very Thanks!

PatricZhao [e-mail]于2018年11月13日周二 下午4:07写道：

There's no python interface, but you can test by mkldnn binary very simple.
https://github.com/intel/mkl-dnn/tree/master/tests/benchdnn

intel/mkl-dnn@3ced2c7
https://github.com/intel/mkl-dnn/commit/3ced2c71fdb06fe4546fe95054d1e766a8addfa7

./benchdnn --rnn --batch=./inputs/rnn/test_rnn_small

In the test file, it includes several configurations:

--reset --alg=VANILLA_GRU
--direction=left2right
--activation=TANH
--prop=FWD_D --batch=rnn_gru_small
--prop=BWD_DW --batch=rnn_gru_small

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[anirudh2290]

@pengzhao-intel Can you point me to the further discussion for MKLDNN RNN API Integration.

[pengzhao-intel]

@anirudh2290 yes, we have the plan but a little complicated mixed the next major release of MXNet 2.0 and MKLDNN 1.0.

We can talk for more details by email, please ping me patric.[email protected]