GitLab

* Fix issues for MCore DDP.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

* Remove force data release for CPU offloading.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

* Add preserved attributeds.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

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

for more information, see https://pre-commit.ci



* Add main_grad to prevserved attributes.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

* Change prepare_for_saving to original tensor and add .data to CPU hook.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

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

for more information, see https://pre-commit.ci



* Update.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

* Fix for LayernormLinear in FP8.
Signed-off-by: Dennis Liu <denliu@nvidia.com>

---------
Signed-off-by: Dennis Liu <denliu@nvidia.com>
Co-authored-by: Xin Yao <xiny@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

flax module with compute dtype inferred from the inputs
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* add prob permute; fix fp8tensor
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

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

for more information, see https://pre-commit.ci



* revert unnecessary changes in UT
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* remove unnecessary probs dtype convert
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* keep the output nums if probs is not provided
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

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

for more information, see https://pre-commit.ci



* refine the doc string
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* fix lint
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* use fp32 compute type
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* style fix
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* fix empty input return
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

* separate prob related functions out
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Xin Yao <xiny@nvidia.com>
Co-authored-by: Phuong Nguyen <phuonguyen@nvidia.com>

Signed-off-by: Przemek Tredak <ptredak@nvidia.com>

* Expose THD to flex MHA module
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Enhance docs
Signed-off-by: Reese Wang <rewang@nvidia.com>

---------
Signed-off-by: Reese Wang <rewang@nvidia.com>
Co-authored-by: Phuong Nguyen <phuonguyen@nvidia.com>

Fix issues when mask/sequence_descriptor is None
Signed-off-by: Reese Wang <rewang@nvidia.com>
Co-authored-by: Phuong Nguyen <phuonguyen@nvidia.com>

JAX Lint Fix
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* fixes L1 test

* fix test_multigpu_encoder

* fixes for other multi-encoder tests

* jax.extend.ffi to jax.ffi

* initialization with float32

* add init_dtype as an optional arg to all modules

* update use_scan query from xla flags

* relax threshold for test_encoder fp8

* relax the tols

---------
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* initialization with weight_dtype
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>
---------
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* fix a bug for at::from_blob with nullptr
Signed-off-by: Xin Yao <xiny@nvidia.com>

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

for more information, see https://pre-commit.ci



* fix a bug for non-TN
Signed-off-by: Xin Yao <xiny@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Xin Yao <xiny@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>

* Updated docs for TE 2.0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>

* Do not expose comm_gemm_overlap and cast_transpose_noop
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>

* Made the figures larger
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>

* Apply suggestions from code review
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Signed-off-by: Przemyslaw Tredak <ptrendx@gmail.com>

* Update quickstart_utils.py
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>

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

for more information, see https://pre-commit.ci



* Change from review
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptrendx@gmail.com>

---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptrendx@gmail.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

Signed-off-by: Jaemin Choi <jaeminc@nvidia.com>
Signed-off-by: Tim Moon <tmoon@nvidia.com>
Co-authored-by: Jaemin Choi <jaeminc@nvidia.com>
Co-authored-by: Tim Moon <tmoon@nvidia.com>

* flax module to init params with given dtype
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* all tests passed
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* remove unneccessary reshape for kernel
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* remove casting output of dot
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

* clean up
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

---------
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

Signed-off-by: Przemek Tredak <ptredak@nvidia.com>

* Initial commit
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Fixed compilation errors
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Fixed syntax errors
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

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

for more information, see https://pre-commit.ci



* Fixed NaN issue when initial param value is zero
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Removed 64 bit indexing instantiation
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Made this feature an opt-in
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Removed arg from unscaled state
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Fixed compilation error
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

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

for more information, see https://pre-commit.ci



* Cleaned up errors
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

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

for more information, see https://pre-commit.ci



* Added support for checkpointing
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

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

for more information, see https://pre-commit.ci



* Fixed checkpointing logic
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

* Added tests
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

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

for more information, see https://pre-commit.ci



* Added assert failure for capturable mode
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

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

for more information, see https://pre-commit.ci



* Fixed pylint errors
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>

---------
Signed-off-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>
Co-authored-by: Selvaraj Anandaraj <selvaraja@login-eos02.eos.clusters.nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>

Signed-off-by: Quentin Anthony <qganthony@yahoo.com>

This function is more accurate than torch.log() for small values of input - https://pytorch.org/docs/stable/generated/torch.log1p.html

Found with TorchFix https://github.com/pytorch-labs/torchfix/

Signed-off-by: Sergii Dymchenko <sdym@meta.com>
Co-authored-by: Xiaowei Ren <103958965+xrennvidia@users.noreply.github.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>

* add mask-based moe permutation

* change moe_chunk_permute to moe_sort_chunks_by_indices

* fix __all__ in pytorch/permutation.py

* fix func/var names and typos; update tols in UT

---------
Signed-off-by: Hongxiao Bai <hongxiaob@nvidia.com>
Co-authored-by: Phuong Nguyen <phuonguyen@nvidia.com>
Co-authored-by: Tim Moon <tmoon@nvidia.com>

* POC for segment_ids/segment_pos
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Change segment_pos position
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Use RemainingArgs to solve number of parameters mismatches
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Test mask_descriptor for accomendating different mask representations
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix bugs
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Use descriptor in bwd
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Primitives only accepts pure jnp array
Signed-off-by: Reese Wang <rewang@nvidia.com>

* segment_ids/pos support POC
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Move seqlens/offsets generation to mask descriptor
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Rename MaskDescriptor to SequenceDescriptor
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Generalize get_seqlens_and_offsets
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Utilize sequence desc on FA bwd
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Migrate to new API
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Add docstrings
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Remove small inputs and test different input format
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix lint
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix seed shardings
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Optimize sequence converting overhead
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Optimize seq_offsets calculation
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix up
Signed-off-by: Reese Wang <rewang@nvidia.com>

* fix lint
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix conflicts
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Remove reduntant line
Signed-off-by: Reese Wang <rewang@nvidia.com>

---------
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Avoid `parameters` function in op backward pass
Signed-off-by: Tim Moon <tmoon@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Tim Moon <tmoon@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

only compare the recipe in AttentionParams.fp8_meta
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

Consolidate the distributed fused attention tests to shared input generation and execition logic.
Signed-off-by: Michael Goldfarb <mgoldfarb@nvidia.com>

* corrected RS overlap BF16 output clashing with Float8Tensor constructor
Signed-off-by: Alp Dener <adener@nvidia.com>

* fixed empty dgrad buffer dtype at initialization
Signed-off-by: Alp Dener <adener@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Alp Dener <adener@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* Add a compile option to compile activation kernels with fast math
Signed-off-by: Guyue Huang <guyueh@nvidia.com>

* Fix
Signed-off-by: Guyue Huang <guyueh@nvidia.com>

* Apply suggestions from code review
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>
Signed-off-by: guyueh1 <140554423+guyueh1@users.noreply.github.com>

---------
Signed-off-by: Guyue Huang <guyueh@nvidia.com>
Signed-off-by: guyueh1 <140554423+guyueh1@users.noreply.github.com>
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* support AG overlap in sequence-parallel Linear forward and RS overlap in sequence-parallel Linear backward
Signed-off-by: Alp Dener <adener@nvidia.com>

* implemented TP overlap support for column-parallel te.Linear
Signed-off-by: Alp Dener <adener@nvidia.com>

* fixed backward pass for te.Linear column-parallel with TP overlap, updated unit tests
Signed-off-by: Alp Dener <adener@nvidia.com>

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

for more information, see https://pre-commit.ci



* improved error messages for internal failure to infer TP overlap options in te.Linear
Signed-off-by: Alp Dener <adener@nvidia.com>

* fixed linting errors
Signed-off-by: Alp Dener <adener@nvidia.com>

* fixed incorrect TP overlap option asserts
Signed-off-by: Alp Dener <adener@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Alp Dener <adener@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Signed-off-by: Sergii Dymchenko <sdym@meta.com>

* add test_multiprocessing_encoder with processing spawning in bash

---------
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>

Take token count quantization of fused attention into consideration for CP results correction (#1396)

* fix second half lse shape
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* bug fixes
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Xiaowei Ren <xren@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* make pad_between_seqs check do not consider padding at the end
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* change CP THD test to make it consider 0-length sequence
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* minor change to flash func name
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* only use varlen func of flash attention while qkv_format is THD
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* try to converge code of flash and fused attentions
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* fix bwd compute with P2P
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* remove redundant out_per_step view
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* enable cudnn>9.6 and THD+GQA
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* enable CP with FusedAttn+SWA+All_Gather
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* enable CP with FusedAttn+SWA+All_Gather
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* code cleaning for cu_seqlens
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

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

for more information, see https://pre-commit.ci



* fix some pylint error
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* minor import change for pylint
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* more fix for pylint
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* fix lse_seqlen in thd out correction
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

---------
Signed-off-by: Xiaowei Ren <xren@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Correct fused attention output after each step to reduce intermediate memory use.
Signed-off-by: Michael Goldfarb <mgoldfarb@nvidia.com>

the current implementation would release the output of ln, leading to an error if setting `return_layernorm_output=True`.
Signed-off-by: Liyuan Liu <llychinalz@gmail.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>

* Fix SWA mask for THD and forcing seqlen_kv >= seqlen_q for SWA
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Generalize sliding window mask
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix pylint
Signed-off-by: Reese Wang <rewang@nvidia.com>

---------
Signed-off-by: Reese Wang <rewang@nvidia.com>

Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

* add swa (left,0) + padding + brcm support
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

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

for more information, see https://pre-commit.ci



* final fixes
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

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

for more information, see https://pre-commit.ci



* upgrade to FE 1.9-rc
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* fix jax tests
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* skip thd + CP + fused attn tests for cuDNN 9.6+ due to different stats shapes
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* Move test distributed encoder to L0 distributed test suit

---------
Signed-off-by: Phuong Nguyen <phuonguyen@nvidia.com>
Co-authored-by: Reese Wang <rewang@nvidia.com>

* WIP: fix get_swa_mask for padding
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* fix mask type setting
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* fix the order of checking valid swa and changing mask type
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

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

for more information, see https://pre-commit.ci



* fix lint
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* revamp to get full mask
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

add weights_only=False for torch.load
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* Add util functions to attn_mask_type
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Add util functions to qkv_layout
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Fix THD cross reference code
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Remove explicit segment_pad, encoding it to segment_ids
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Add jax.jit, replace _token with segment_ids, rename bias shape enum
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Add comment for make_mask
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Clean code
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Add doc strings for the added functions
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Remove cache for fa deterministic which causes UT failed
Signed-off-by: Reese Wang <rewang@nvidia.com>

* Rename fixture to avoid conflict
Signed-off-by: Reese Wang <rewang@nvidia.com>

---------
Signed-off-by: Reese Wang <rewang@nvidia.com>

add max_t for KV
Signed-off-by: Charlene Yang <8636796+cyanguwa@users.noreply.github.com>

* draft implementation of fsdp2 fp8 all gather
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

* fix the convergence issue
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

* Add warning
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

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

for more information, see https://pre-commit.ci



* disable lint error
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

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

for more information, see https://pre-commit.ci



* fix the lint error
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

* fix lint error
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

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

for more information, see https://pre-commit.ci



* fix lint error
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

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

for more information, see https://pre-commit.ci



* fix lint error
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

* add comments
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

* add ref
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

* add related tests
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>

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

for more information, see https://pre-commit.ci



---------
Signed-off-by: Youngeun Kwon <youngeunk@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>