| /* |
| * Copyright (c) 2024 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. |
| */ |
| #include "ScatterLayer.h" |
| #include "tests/validation/Helpers.h" |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace validation |
| { |
| namespace reference |
| { |
| namespace |
| { |
| |
| template <typename T> |
| T reduce_op(const T ¤t,const T &update,const ScatterFunction func) |
| { |
| switch(func) |
| { |
| case ScatterFunction::Update: |
| return update; |
| break; |
| case ScatterFunction::Add: |
| return current + update; |
| break; |
| case ScatterFunction::Sub: |
| return current - update; |
| break; |
| case ScatterFunction::Max: |
| return std::max(current, update); |
| break; |
| case ScatterFunction::Min: |
| return std::min(current, update); |
| break; |
| default: |
| ARM_COMPUTE_ERROR("Unsupported Scatter function"); |
| break; |
| } |
| } |
| |
| template float reduce_op(const float ¤t,const float &update,const ScatterFunction func); |
| } |
| |
| // Note : This function currently only supports 1D src, 1D updates, 2D indices, 1D output tensors. |
| template <typename T> |
| SimpleTensor<T> scatter_layer_internal(const SimpleTensor<T> &src, const SimpleTensor<T> &updates, const SimpleTensor<int32_t> &indices, const TensorShape &out_shape, const ScatterInfo &info) |
| { |
| SimpleTensor<T> dst{ out_shape, src.data_type(), 1 }; |
| |
| // 1. If zero initialization variable is true, fill dst with 0 values. Else copy src data to dst. |
| if(info.zero_initialization) |
| { |
| for (int i = 0; i < src.num_elements(); ++i) |
| { |
| dst[i] = static_cast<T>(0); |
| } |
| } |
| else |
| { |
| std::copy_n(src.data(), src.num_elements(), dst.data()); |
| } |
| |
| // 2. Get max index of output tensor, then iterate over index tensor. |
| const int x_bound = static_cast<int>(dst.shape().x()); |
| |
| |
| for(int i = 0; i < indices.num_elements(); ++i) |
| { |
| // 3. Check whether index is out of bounds for dst, if not then apply reduce op. |
| const auto index = indices[i]; |
| if (index < x_bound && index >= 0) // Note : we ignore negative index values. |
| { |
| dst[index] = reduce_op(dst[index], updates[i], info.func); |
| } |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| SimpleTensor<T> scatter_layer(const SimpleTensor<T> &src, const SimpleTensor<T> &updates, const SimpleTensor<int32_t> &indices, const TensorShape &out_shape, const ScatterInfo &info) |
| { |
| return scatter_layer_internal<T>(src, updates, indices, out_shape, info); |
| } |
| |
| template SimpleTensor<float> scatter_layer(const SimpleTensor<float> &src, const SimpleTensor<float> &updates, const SimpleTensor<int32_t> &indices, const TensorShape &out_shape, const ScatterInfo &info); |
| |
| } // namespace reference |
| } // namespace validation |
| } // namespace test |
| } // namespace arm_compute |