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* Move MultiHeadAttention into its own file. Modify tests and files in t_e/pytorch to import from the new MHA module
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Resolving lost MHA changes from PR 1614 as a result of rebase
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Move context parallelism code into it's own file. Modify test and local imports of cp code accordingly
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Move softmax.py frm pytorch/ to pytorch/d_p_a
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Move Unfused and Fused attention to backends.py and some utils functions to pytorch/utils.py
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Resolving lost mark_activation_offload changes from PR 1678 as a result of rebase
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Code clean up
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

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* Refactor attention dir
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Refactor dir structure. Make relevant symbols public in __init__ for attention and d_p_a dirs
Move FA package imports to backends.py
Code cleanup
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Modify tests to import attention modules correctly
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Lint fixes
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Code clean up and fix typo
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Allowing InferenceParams and RoPE imports from attention module and pytorch module
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Allow InferenceParams and RoPE imports via transformer_engine.pytorch and transformer_engine.pytorch.attention modules
Remove unnecessary checks for check_set_window_size in MHA and TL
Reorder backends such that smaller classes at the start and larger ones at the end
Code clean up
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* Reinstating changes from PR 1478 for rope.py lost during rebase conflict resolution
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Fix lint issues
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* nit: Code clean up
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Make imports leaner
Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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Signed-off-by: Kshitij Janardan Lakhani <klakhani@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>