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Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67

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ksivaman merged 15 commits into
NVIDIA:mainfrom
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged

Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom
ptrendx:pr_layernorm1p

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@ptrendxptrendx commented Feb 7, 2023

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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.

This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.

@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx requested a review from ksivamanFebruary 7, 2023 01:18
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@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx

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mikolajblaz commented Feb 8, 2023

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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.

From my limited understanding of kernels, those are the 2 places that might need a +1:

@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx

ptrendx commented Feb 9, 2023

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ksivaman
ksivaman reviewed Feb 10, 2023
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Comment threadqa/L0_lint/pylintrc Outdated
@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
ksivaman reviewed Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp Outdated
ksivaman
ksivaman reviewed Feb 11, 2023
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Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh Outdated
@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx

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LGTM

@ksivaman

ksivaman commented Feb 15, 2023

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ci errors are unrelated (ONNX)

@ksivaman
ksivaman merged commit 7324fe2 into NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit to nzmora-nvidia/TransformerEngine that referenced this pull request Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
This was referenced Feb 22, 2023
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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
Skip to content
Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
Merged
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Conversation
@ptrendx
@ptrendxptrendx
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Feb 7, 2023

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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
@ptrendx
ptrendx
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Feb 7, 2023

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/te-ci
@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 9, 2023

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ksivaman
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Feb 10, 2023
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Comment threadqa/L0_lint/pylintrc
Outdated

@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
ksivaman
reviewed
Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
Outdated

ksivaman
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Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
Outdated

@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 14, 2023

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LGTM
@ksivaman
ksivaman
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Feb 15, 2023

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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

This was referenced Feb 22, 2023
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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
Skip to content
Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
Merged
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Conversation
@ptrendx
@ptrendxptrendx
commented
Feb 7, 2023

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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
@ptrendx
ptrendx
commented
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/te-ci
@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 7, 2023

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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
commented
Feb 9, 2023

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ksivaman
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reviewed
Feb 10, 2023
View reviewed changes
Comment threadqa/L0_lint/pylintrc
Outdated

@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
ksivaman
reviewed
Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
Outdated

ksivaman
ksivaman
reviewed
Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
Outdated

@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 14, 2023

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LGTM
@ksivaman
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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

This was referenced Feb 22, 2023
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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
Skip to content
Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
Merged
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
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@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 9, 2023

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Comment threadqa/L0_lint/pylintrc
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@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
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Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
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ksivaman
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Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
Outdated

@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
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LGTM
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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
Skip to content
Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
Merged
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
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@ptrendx
@ptrendxptrendx
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Feb 7, 2023

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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
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@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 9, 2023

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Comment threadqa/L0_lint/pylintrc
Outdated

@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
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Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
Outdated

ksivaman
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Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
Outdated

@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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LGTM
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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

This was referenced Feb 22, 2023
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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
Skip to content
Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
Merged
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Conversation
@ptrendx
@ptrendxptrendx
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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
@ptrendx
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/te-ci
@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 7, 2023

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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 9, 2023

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Comment threadqa/L0_lint/pylintrc
Outdated

@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
ksivaman
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Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
Outdated

ksivaman
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reviewed
Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
Outdated

@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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LGTM
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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

This was referenced Feb 22, 2023
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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
Skip to content
Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
Merged
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Conversation
@ptrendx
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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
@ptrendx
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Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
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Feb 7, 2023

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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
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Feb 9, 2023

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ksivaman
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Comment threadqa/L0_lint/pylintrc
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@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
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Feb 11, 2023
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Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
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ksivaman
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Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
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@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
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LGTM
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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

This was referenced Feb 22, 2023
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Zero-centered gamma support in LayerNorm (LayerNorm1p) by ptrendx · Pull Request #67 · NVIDIA/TransformerEngine · GitHub
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Zero-centered gamma support in LayerNorm (LayerNorm1p) - #67
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ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
Feb 15, 2023
Merged
Zero-centered gamma support in LayerNorm (LayerNorm1p)#67
ksivaman merged 15 commits into
NVIDIA:mainfrom 
ptrendx:pr_layernorm1p
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Feb 7, 2023

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This PR adds a new option to LayerNorm (and other APIs that use LN) to initialize gamma parameter to 0 and use (1+gamma) instead of gamma.
This improves the precision characteristics of LN parameters and makes some techniques, like the weight decay, easier to implement for LN parameters.
@ptrendx
C++ implementation of LayerNorm1P
59f2dd0
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Expose zero centered gamma to pyTorch
240f9b5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix
4515db2
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
requested a review
from ksivamanFebruary 7, 2023 01:18
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@ptrendx
Fix ONNX export
9d61b0d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix ONNX export and tests
f66fb25
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
@ptrendx
Fix lint
742966d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 7, 2023

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@mikolajblaz
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Feb 8, 2023

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@ptrendx I noticed that none of the backward kernels receive the zero_centered_gamma parameter, which is worrying. When computing the gradient wrt. gamma the +1 should cancel out, but gradients wrt. all the other variables must receive a gamma + 1 value.
From my limited understanding of kernels, those are the 2 places that might need a +1:
@ptrendx
Fix backward handling - C++ part
b0e9c76
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix for backward - Python side
f2a2dc1
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Fix FP8 path
c36f3fb
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
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Feb 9, 2023

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ksivaman
ksivaman
reviewed
Feb 10, 2023
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Comment threadqa/L0_lint/pylintrc
Outdated

@ptrendx
Merge branch 'main' into pr_layernorm1p
37019e5
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Reenable the pylint check
d50714d
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
ksivaman
ksivaman
reviewed
Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_api.cpp
Outdated

ksivaman
ksivaman
reviewed
Feb 11, 2023
View reviewed changes
Comment threadtransformer_engine/common/layer_norm/ln_bwd_kernels.cuh
Outdated

@ptrendx
Fix the NVTX marker
60487e4
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
Merge branch 'main' into pr_layernorm1p
33b6a29
@ptrendx
Change in the bwd kernel
e0aeffa
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
@ptrendx
ptrendx
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Feb 14, 2023

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LGTM
@ksivaman
ksivaman
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Feb 15, 2023

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ci errors are unrelated (ONNX)
@ksivaman
ksivaman
merged commit 7324fe2
into
NVIDIA:mainFeb 15, 2023
nzmora-nvidia pushed a commit
to nzmora-nvidia/TransformerEngine
that referenced
this pull request
Feb 15, 2023
@ptrendx@nzmora-nvidia
Zero-centered gamma support in LayerNorm (LayerNorm1p) (NVIDIA#67)
eaa80b2
* C++ implementation of LayerNorm1P
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Expose zero centered gamma to pyTorch
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix ONNX export and tests
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>
* Fix lint
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix backward handling - C++ part
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix for backward - Python side
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix FP8 path
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Reenable the pylint check
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Fix the NVTX marker
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
* Change in the bwd kernel
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
---------
Signed-off-by: Przemek Tredak <ptredak@nvidia.com>
Signed-off-by: Przemyslaw Tredak <ptredak@nvidia.com>

This was referenced Feb 22, 2023
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