Improve layer_norm speed #9355
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Improve layer_norm speed #9355
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transfomer on a single device step time
reduces from 0.157 to 0.125
chengduoZH
reviewed
Mar 25, 2018
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| #ifdef PADDLE_WITH_CUDA | ||
| template <typename T> | ||
| class RowwiseMean2D<platform::CUDADeviceContext, T> { |
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I think it might be better to write this function in math_function.
| template <typename T> | ||
| class ColwiseSum2D<platform::CUDADeviceContext, T> { | ||
| public: | ||
| ColwiseSum2D(int left, int right, const platform::DeviceContext& dev_ctx) |
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ColwiseSum is used in lstm_op, gru_op, sequence_expand_op and lstmp_op, maybe those ops' performance can be improved too.
chengduoZH
approved these changes
Mar 26, 2018
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layer_norm forward and backward overall speed up 3x ~ 4x
transfomer on a single device step time
reduces from 0.157 to 0.125
the precommit also automatically formatted some codes.