GitLab

* Add support for NVIDIA Megatron models

* Add support for NVIDIA Megatron GPT2 and BERT

Add the megatron_gpt2 model. That model reuses the existing GPT2 model. This
commit includes a script to convert a Megatron-GPT2 checkpoint downloaded
from NVIDIA GPU Cloud. See examples/megatron-models/README.md for details.

Add the megatron_bert model. That model is implemented as a modification of
the existing BERT model in Transformers. This commit includes a script to
convert a Megatron-BERT checkpoint downloaded from NVIDIA GPU Cloud. See
examples/megatron-models/README.md for details.

* Update src/transformers/models/megatron_bert/configuration_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/configuration_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/configuration_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Remove model.half in tests + add "# Copied ..."

Remove the model.half() instruction which makes tests fail on the CPU.

Add a comment "# Copied ..." before many classes in the model to enable automatic
tracking in CI between the new Megatron classes and the original Bert ones.

* Fix issues

* Fix Flax/TF tests

* Fix copyright

* Update src/transformers/models/megatron_bert/configuration_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/configuration_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>

* Update docs/source/model_doc/megatron_bert.rst
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/model_doc/megatron_gpt2.rst
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/__init__.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_gpt2/convert_megatron_gpt2_checkpoint.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_gpt2/convert_megatron_gpt2_checkpoint.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_gpt2/convert_megatron_gpt2_checkpoint.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/convert_megatron_bert_checkpoint.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/convert_megatron_bert_checkpoint.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/convert_megatron_bert_checkpoint.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update src/transformers/models/megatron_bert/modeling_megatron_bert.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Resolve most of 'sgugger' comments

* Fix conversion issue + Run make fix-copies/quality/docs

* Apply suggestions from code review

* Causal LM & merge

* Fix init

* Add CausalLM to last auto class
Co-authored-by: Julien Demouth <jdemouth@nvidia.com>
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Lysandre <lysandre.debut@reseau.eseo.fr>