GitLab

Summary: Fixes semisupervised translation task to deal with change in order of data loading and model creation (D15428242).  When we build the model, we create the backtranslation function, which we can then pass in to the constructor of BacktranslationDataset

Reviewed By: myleott

Differential Revision: D15455420

fbshipit-source-id: 95101ca92f8af33702be3416147edd98da135a20

Summary:
Remove duplicate definition of PositionalEmbedding in `lightconv.py`
Pull Request resolved: https://github.com/pytorch/fairseq/pull/754

Differential Revision: D15451443

Pulled By: myleott

fbshipit-source-id: a3d82ab2c1335d66be3c5d67a07893162d138c7a

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/595

Differential Revision: D15428242

Pulled By: myleott

fbshipit-source-id: 3cec83a2353498a4802398eba8bcb1aefaf6d5c4

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/596

Differential Revision: D15432359

Pulled By: myleott

fbshipit-source-id: ebfdf0031864c3c88357543c0202ba0bd65a7b90

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/597

Differential Revision: D15432965

Pulled By: myleott

fbshipit-source-id: 4471a2a8bb468bb639a80f977ab4c20480acb461

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/592

Differential Revision: D15415499

Pulled By: myleott

fbshipit-source-id: 87ba09b9b38501daebd95bbf28815e048c78f9a3

Summary:
Pull Request resolved: https://github.com/pytorch/fairseq/pull/752

previously we sample masked tokens with replace=True (default). Because of this, we would mask same tokens multiple times, which will make us mask less tokens finally

Reviewed By: liaimi

Differential Revision: D15403556

fbshipit-source-id: cf12eeb13f9610431136a345de9199ad0292984b

Summary:
Pull Request resolved: https://github.com/pytorch/fairseq/pull/730

Pull Request resolved: https://github.com/pytorch/translate/pull/528

Add/modify necessary functions for ConcatDataset to work in PytorchTranslateTask and replace MultiCorpusSampledDataset which doesn't support mixed batch.

Any idea on how to implement collater here for mixed batch? Now I'm just using the collater of the first dataset.

Reviewed By: liezl200

Differential Revision: D15260872

fbshipit-source-id: 14b148c506e9f8ebf4fe60a49f95444d4123d76f

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/591

Differential Revision: D15415490

Pulled By: myleott

fbshipit-source-id: c45df5f3b5327911e2c9b11642e7da2e8bb835dc

Summary:
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/570

Pull Request resolved: https://github.com/pytorch/fairseq/pull/731

Currently the LearnedPositionalEmbedding module computes the position tensor based on the input data. However this really doesnt work for XLM where we have different behavior based on the Masked LM and Translation LM. In this diff I keep the same default behavior for LearnedPositionalEmbedding as before but add the ability for these models to work with pre-computed position tensors.

Reviewed By: myleott

Differential Revision: D15305474

fbshipit-source-id: de7d908245a2a620b58d36055211600a08f2d1dc

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/588

Differential Revision: D15389638

Pulled By: myleott

fbshipit-source-id: 4632ce22d51dc2c74d250bae999630095d849701

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/586

Differential Revision: D15372949

Pulled By: myleott

fbshipit-source-id: c1cf1c645e8d55fc8568f23a47c45677ac9ab1da

Summary:
Pull Request resolved: https://github.com/pytorch/fairseq/pull/744

Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/587

After we added additional prediciton layers for language model predictions. The fine-tuning is broken because of 2 reasons.
1. checkpoint cannot be loaded since we didn't update state_dict names
2. lm_output_learned_bias is not initialize if load_softmax is false

Reviewed By: myleott

Differential Revision: D15377380

fbshipit-source-id: d58544b1d2c549586abef42fec19ec8bf27a994a

Summary:
Pull Request resolved: https://github.com/pytorch/fairseq/pull/743

Original commit changeset: 0afe37c9a031

According to edunov: "We need to be careful here with shared parameters, I believe right now it is broken if you have shared encoder/decoder input embeddings (encoder.embed_tokens.weight and decoder.embed_tokens.weight) as they get updated several times"

We also have OSS issues that look related, e.g., https://github.com/pytorch/fairseq/issues/732.

Backing this out until we can confirm the correct behavior for shared params.

Differential Revision: D15372673

fbshipit-source-id: 8683c0f2514e21fa1e9d2fe6dfc48d98957a2831

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/585

Differential Revision: D15372416

fbshipit-source-id: add226a4558ae4d84dd261e9317b80c43970f771

Summary: Similar to TranslationTask, we want to enable multilingual translation task to be able to load 'train{k}' datasets from data-bin folder.

Reviewed By: lematt1991

Differential Revision: D15363481

fbshipit-source-id: 5fed7be19383023b792ed2fd38e655cbcecc8b90

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/584

Reviewed By: myleott

Differential Revision: D15360774

Pulled By: myleott

fbshipit-source-id: b18efbb6ff5a8832c61b689f3d87c958cbd908e9

Summary:
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/583

D14610694 fixed issues in layerNorm exporting by making it conditional.  D15260838 changed the implementation of TransformerDecoderLayer to the one under transformer, thus losing the fix. Bringing it back here.

Reviewed By: myleott, geof90, liaimi

Differential Revision: D15357119

fbshipit-source-id: e29e053ca5beca0008d7a8dad9880a483a14c7b9

Summary:
added shuffle as arg for masked_lm for experimenting with pad effecient batching
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/582

Reviewed By: jingfeidu

Differential Revision: D15355105

Pulled By: jingfeidu

fbshipit-source-id: 9925271a0bc2f9d283f354d158bd4b5ec8788b39

Summary:
1) Added pooled_output for sentence classification as `Tanh(Linear())`.
2) Added lm_head_transform as `LayerNorm(GeLU(Linear(x)))`
3) `act_dropout = 0.0`
4) added `lm_output_learned_bias`
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/581

Reviewed By: borguz

Differential Revision: D15353575

Pulled By: borguz

fbshipit-source-id: 4ff64c6ceed23f3e99348f73d189546f1d84452e

Summary:
- `FairseqModel` -> `FairseqEncoderDecoderModel`
- add `FairseqDecoder.extract_features` and `FairseqDecoder.output_layer`
- `encoder_out_dict` -> `encoder_out`
- rm unused `remove_head` functions
- update docs
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/561

Differential Revision: D15271142

Pulled By: myleott

fbshipit-source-id: 8e8864e399336020f0271c780598e968ff51a264

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/578

Differential Revision: D15352060

Pulled By: myleott

fbshipit-source-id: 7dc2fceca37ec96c89356662831b0d82f28bef6f

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/579

Differential Revision: D15352058

Pulled By: myleott

fbshipit-source-id: cebef02edcfcb203ef2e32c64f7f28e08c4e46b0

Summary:
Various fixes for Masked LM

- use --activation-fn instead of --gelu
- use --dataset-impl instead of --lazy-load
- add embed_scale option to TransformerSentenceEncoder
- fix encoder_normalize_before to include a final layer norm
- delete BertLayerNorm
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/573

Reviewed By: borguz

Differential Revision: D15317933

Pulled By: myleott

fbshipit-source-id: 8ecb46556ad43e76e92d41ed8f5a62e8516fd375

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/575

Differential Revision: D15318004

Pulled By: myleott

fbshipit-source-id: ad918d71b1bd8074decf5ec3463dd9bc9487bbe9

Summary:
1. Define a EpochMinibatchIterator which extends the EpochBatchIterator. It has same functionality as EpochBatchIterator except two major changes: use static batching and use MiniBatchIterator for getting the indices.

2. SplitSeqCollater is used instead of Seq2SeqCollater.
3. LSTM_subsample started storing the previous states and reset it once the sample is over.

Reviewed By: jay-mahadeokar

Differential Revision: D15209023

fbshipit-source-id: 900b8bd1f25159ffc77f8106e26729a3e7422a1f

Summary:
Move `load_checkpoint`, `save_checkpoint` and `reload_train` from train.py to checkpoint_utils.py
Move `get_perplexity` from train.py to utils.py.
This will make train.py lighter and allow us to reuse all this utils functionality when fairseq is used as external library.

Reviewed By: myleott

Differential Revision: D15289607

fbshipit-source-id: 4b7c95225ac22e402bcda3497811361809110df1

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/576

Differential Revision: D15318086

Pulled By: myleott

fbshipit-source-id: c6587737ca7b97edc97ad4aef5c5c9ac7e92b2f2

Summary:
This was named gelu_fast after the original implementation: https://github.com/hendrycks/GELUs/blob/master/mnist_ae.py#L62-L63

But in practice it's actually slower and uses more memory. Rename to gelu_accurate.
Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/571

Differential Revision: D15317874

Pulled By: myleott

fbshipit-source-id: c96fbc89bf91b27ced1ab8d5b25a8f23f922ec24

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/574

Differential Revision: D15317984

Pulled By: myleott

fbshipit-source-id: 09a66229cc6b4c95678ca1ca13c9e0da25b203de

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/572

Differential Revision: D15317928

Pulled By: myleott

fbshipit-source-id: b3f0e9229737a63b49937e7c5b918470f18ddc45

Summary:
`--output-format` -> `--dataset-impl` in Tutorial: Classifying Names with a Character-Level RNN
Pull Request resolved: https://github.com/pytorch/fairseq/pull/735

Differential Revision: D15314625

Pulled By: myleott

fbshipit-source-id: 65b8efd1a367ca754e5b9dca088aefbc648864dd

Summary: Pull Request resolved: https://github.com/pytorch/fairseq/pull/736

Differential Revision: D15314626

Pulled By: myleott

fbshipit-source-id: 1e0c32529afee57e43fe5d6c7991cd13eb8a52c4

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/568

Differential Revision: D15308483

Pulled By: myleott

fbshipit-source-id: 9d898ce523e46e6b6fb444274f478da0b577b603

Summary: Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/560

Differential Revision: D15260838

Pulled By: myleott

fbshipit-source-id: 5f80dd82775c10ce46a3e1c451ccaf0ef55bfa31

Summary: As in title.

Reviewed By: skritika

Differential Revision: D15299135

fbshipit-source-id: 2fd513b32c0ab41911cdf0b0186f6c3bb5256285

Set initial learning rate in LR schedulers by calling step_update(0) at init

This reverts commit 8e8e1afc.