1 /* 2 * Copyright (c) 2017-2021 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_NEREDUCTIONOPERATION_H 25 #define ARM_COMPUTE_NEREDUCTIONOPERATION_H 26 27 #include "arm_compute/runtime/IFunction.h" 28 29 #include "arm_compute/runtime/NEON/functions/NEReshapeLayer.h" 30 #include "arm_compute/runtime/Tensor.h" 31 #include <memory> 32 33 namespace arm_compute 34 { 35 class ITensor; 36 class NEReductionOperationKernel; 37 38 /** Basic function to simulate a reduction operation. This function calls the following kernels: 39 * 40 * -# @ref NEReshapeLayer 41 * -# @ref NEReductionOperationKernel 42 * 43 */ 44 class NEReductionOperation : public IFunction 45 { 46 public: 47 /** Default constructor */ 48 NEReductionOperation(std::shared_ptr<IMemoryManager> memory_manager = nullptr); 49 /** Prevent instances of this class from being copied (As this class contains pointers) */ 50 NEReductionOperation(const NEReductionOperation &) = delete; 51 /** Default move constructor */ 52 NEReductionOperation(NEReductionOperation &&) = default; 53 /** Prevent instances of this class from being copied (As this class contains pointers) */ 54 NEReductionOperation &operator=(const NEReductionOperation &) = delete; 55 /** Default move assignment operator */ 56 NEReductionOperation &operator=(NEReductionOperation &&) = default; 57 /** Default destructor */ 58 ~NEReductionOperation(); 59 /** Set the input and output tensors. 60 * 61 * Valid data layouts: 62 * - All 63 * 64 * Valid data type configurations: 65 * |src |dst | 66 * |:--------------|:--------------| 67 * |QASYMM8 |QASYMM8 | 68 * |QASYMM8_SIGNED |QASYMM8_SIGNED | 69 * |F16 |F16 | 70 * |F32 |F32 | 71 * |S32 |S32 | 72 * 73 * @param[in, out] input Source tensor. Data type supported: QASYMM8_SIGNED/QASYMM8/F16/F32/S32. (Written to only for border_size != 0) 74 * @param[out] output Destination tensor. Data types and data layouts supported: same as @p input. 75 * @param[in] axis Dimension along which to reduce. Supported reduction axis : 0 76 * @param[in] op Reduction operation to perform. 77 * @param[in] keep_dims (Optional) Whether to keep the reduced dimension after the operation. Defaults to true. 78 */ 79 void configure(ITensor *input, ITensor *output, unsigned int axis, ReductionOperation op, bool keep_dims = true); 80 81 /** Static function to check if given info will lead to a valid configuration of @ref NEReductionOperation. 82 * 83 * @param[in] input Source tensor info. Data type supported: QASYMM8_SIGNED/QASYMM8/F16/F32/S32. 84 * @param[in] output Destination tensor info. Data types and data layouts supported: same as @p input. 85 * @param[in] axis Dimension along which to reduce. Supported reduction axis : 0 86 * @param[in] op Reduction operation to perform. 87 * @param[in] keep_dims (Optional) Whether to keep the reduced dimension after the operation. Defaults to true. 88 * 89 * @return a status 90 */ 91 static Status validate(const ITensorInfo *input, const ITensorInfo *output, unsigned int axis, ReductionOperation op, bool keep_dims = true); 92 93 // Inherited methods overridden: 94 void run() override; 95 96 private: 97 MemoryGroup _memory_group; 98 std::unique_ptr<NEReductionOperationKernel> _reduction_kernel; 99 NEReshapeLayer _reshape; 100 Tensor _output_internal; 101 size_t _window_split; 102 int _reduction_axis; 103 bool _is_reshape_required; 104 }; 105 } // namespace arm_compute 106 #endif /* ARM_COMPUTE_NEREDUCTIONOPERATION_H */ 107