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Diffstat (limited to 'src/core/cpu/kernels/CpuConvertFullyConnectedWeightsKernel.h')
-rw-r--r-- | src/core/cpu/kernels/CpuConvertFullyConnectedWeightsKernel.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/core/cpu/kernels/CpuConvertFullyConnectedWeightsKernel.h b/src/core/cpu/kernels/CpuConvertFullyConnectedWeightsKernel.h new file mode 100644 index 0000000000..c867e3deeb --- /dev/null +++ b/src/core/cpu/kernels/CpuConvertFullyConnectedWeightsKernel.h @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2018-2021 Arm Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef ARM_COMPUTE_CPU_CONVERTFULLYCONNECTEDWEIGHTS_KERNEL_H +#define ARM_COMPUTE_CPU_CONVERTFULLYCONNECTEDWEIGHTS_KERNEL_H + +#include "src/core/common/Macros.h" +#include "src/core/cpu/ICpuKernel.h" + +namespace arm_compute +{ +namespace cpu +{ +namespace kernels +{ +/** Interface to convert the 2D Fully Connected weights from NCHW to NHWC or vice versa. + * + * @note This function can be applied to the 2D weights used by a Fully Connected layer if: + * - It follows a Convolution layer + * - The data layout used by the network does not match the one the model has been trained in. + * + * @note This function assumes the weights are already reshaped (transposed) + */ +class CpuConvertFullyConnectedWeightsKernel : public ICpuKernel +{ +public: + /** Default constructor */ + CpuConvertFullyConnectedWeightsKernel(); + ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuConvertFullyConnectedWeightsKernel); + /** Set the src and dst tensor. + * + * @param[in] src Source weights tensor info to convert. Must be 2 dimensional. Data types supported: All. + * @param[in] dst The converted weights tensor info. Shape and Data Type: Same as @p src. + * @param[in] original_input_shape Shape of the original src tensor (the one entering fully connected layer). + * @param[in] data_layout The data layout the weights have been trained in. + */ + void configure(const ITensorInfo *src, ITensorInfo *dst, const TensorShape &original_input_shape, DataLayout data_layout); + /** Static function to check if given info will lead to a valid configuration of @ref CpuConvertFullyConnectedWeightsKernel + * + * @param[in] src Source weights tensor info to convert. Must be 2 dimensional. Data types supported: All. + * @param[in] dst The converted weights tensor info. Shape and Data Type: Same as @p src. + * @param[in] original_input_shape Shape of the original src tensor (the one entering fully connected layer). + * @param[in] data_layout The data layout the weights have been trained in. + * + * @return a status + */ + static Status validate(const ITensorInfo *src, const ITensorInfo *dst, const TensorShape &original_input_shape, DataLayout data_layout); + + // Inherited methods overridden: + void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; + const char *name() const override; + +private: + unsigned int _factor1; /* equals to the number of elements per original src plane if @p data_layout == NCHW; its number of channels otherwise */ + unsigned int _factor2; /* equals to the number of elements per original src plane if @p data_layout == NHWC; its number of channels otherwise */ + + /** Template function to run the permute + * + * @param[in] in Source weights tensor info to convert. Must be 2 dimensional. Data types supported: All. + * @param[in] out The converted weights tensor info. Shape and Data Type: Same as @p in. + * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()). + */ + template <typename T> + void run_convert_fc_weights(const ITensor *in, ITensor *out, const Window &window); +}; +} // namespace kernels +} // namespace cpu +} // namespace arm_compute +#endif /*ARM_COMPUTE_CPU_CONVERTFULLYCONNECTEDWEIGHTS_KERNEL_H */
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