giuros01 | 1bf5e28 | 2018-12-21 14:57:48 +0000 | [diff] [blame] | 1 | /* |
Michele Di Giorgio | d9eaf61 | 2020-07-08 11:12:57 +0100 | [diff] [blame] | 2 | * Copyright (c) 2019-2020 Arm Limited. |
giuros01 | 1bf5e28 | 2018-12-21 14:57:48 +0000 | [diff] [blame] | 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 | #include "arm_compute/core/CPP/kernels/CPPTopKVKernel.h" |
| 25 | #include "arm_compute/core/Coordinates.h" |
| 26 | #include "arm_compute/core/Error.h" |
| 27 | #include "arm_compute/core/Helpers.h" |
| 28 | #include "arm_compute/core/TensorInfo.h" |
| 29 | #include "arm_compute/core/Types.h" |
| 30 | #include "arm_compute/core/Utils.h" |
| 31 | #include "arm_compute/core/Validate.h" |
| 32 | #include "arm_compute/core/Window.h" |
| 33 | #include "arm_compute/core/utils/misc/Traits.h" |
| 34 | |
| 35 | namespace arm_compute |
| 36 | { |
| 37 | namespace |
| 38 | { |
| 39 | template <typename T, |
| 40 | typename std::enable_if<utils::traits::is_floating_point<T>::value, int>::type = 0> |
| 41 | inline bool greater_than(T a, T b) |
| 42 | { |
| 43 | const T epsilon = std::numeric_limits<T>::epsilon(); |
| 44 | return (a - b > epsilon); |
| 45 | } |
| 46 | |
| 47 | template < typename T, |
| 48 | typename std::enable_if < !utils::traits::is_floating_point<T>::value, int >::type = 0 > |
| 49 | inline bool greater_than(T a, T b) |
| 50 | { |
| 51 | return (a > b); |
| 52 | } |
| 53 | |
| 54 | Status validate_arguments(const ITensorInfo *predictions, const ITensorInfo *targets, ITensorInfo *output, const unsigned int k) |
| 55 | { |
| 56 | ARM_COMPUTE_UNUSED(k); |
Sheri Zhang | 05b243a | 2020-03-16 14:07:51 +0000 | [diff] [blame] | 57 | ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(predictions, 1, DataType::QASYMM8, DataType::QASYMM8_SIGNED, DataType::S32, DataType::F16, DataType::F32); |
giuros01 | 1bf5e28 | 2018-12-21 14:57:48 +0000 | [diff] [blame] | 58 | ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(targets, 1, DataType::U32); |
| 59 | |
| 60 | ARM_COMPUTE_RETURN_ERROR_ON(predictions->num_dimensions() > 2); |
| 61 | ARM_COMPUTE_RETURN_ERROR_ON(targets->num_dimensions() > 1); |
| 62 | ARM_COMPUTE_RETURN_ERROR_ON(targets->dimension(0) != predictions->dimension(1)); |
| 63 | // Validate configured output |
| 64 | if(output->total_size() != 0) |
| 65 | { |
| 66 | ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DIMENSIONS(output->tensor_shape(), targets->tensor_shape()); |
| 67 | ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8); |
| 68 | } |
| 69 | |
| 70 | return Status{}; |
| 71 | } |
| 72 | } // namespace |
| 73 | |
| 74 | template <typename T> |
| 75 | void CPPTopKVKernel::run_topkv() |
| 76 | { |
| 77 | for(unsigned int i = 0; i < _batch_size; ++i) |
| 78 | { |
| 79 | const auto target_class_id = *reinterpret_cast<uint32_t *>(_targets->ptr_to_element(Coordinates{ i })); |
| 80 | const auto predicted_value = *reinterpret_cast<T *>(_predictions->ptr_to_element(Coordinates{ target_class_id, i })); |
| 81 | |
| 82 | // The variable rank indicates how many values there are before the target_class_id |
| 83 | unsigned int rank = 0; |
| 84 | for(unsigned int j = 0; (j < _num_classes) && (rank < _k); ++j) |
| 85 | { |
| 86 | const auto current_prediction = *reinterpret_cast<T *>(_predictions->ptr_to_element(Coordinates{ j, i })); |
| 87 | if(greater_than(current_prediction, predicted_value)) |
| 88 | { |
| 89 | rank++; |
| 90 | } |
| 91 | } |
| 92 | *(_output->ptr_to_element(Coordinates{ i })) = static_cast<uint8_t>(rank < _k); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | CPPTopKVKernel::CPPTopKVKernel() |
| 97 | : _predictions(nullptr), _targets(nullptr), _output(nullptr), _k(), _batch_size(), _num_classes() |
| 98 | { |
| 99 | } |
| 100 | |
| 101 | void CPPTopKVKernel::configure(const ITensor *predictions, const ITensor *targets, ITensor *output, const unsigned int k) |
| 102 | { |
| 103 | ARM_COMPUTE_ERROR_ON_NULLPTR(predictions, targets, output); |
| 104 | |
| 105 | // Perform validation step |
| 106 | ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(predictions->info(), targets->info(), output->info(), k)); |
| 107 | auto_init_if_empty(*output->info(), targets->info()->tensor_shape(), 1, DataType::U8); |
| 108 | |
| 109 | _predictions = predictions; |
| 110 | _targets = targets; |
| 111 | _output = output; |
| 112 | |
| 113 | _k = k; |
| 114 | _batch_size = predictions->info()->dimension(1); |
| 115 | _num_classes = predictions->info()->dimension(0); |
| 116 | |
| 117 | ICPPKernel::configure(Window()); // Default 1 iteration window |
| 118 | } |
| 119 | |
| 120 | Status CPPTopKVKernel::validate(const ITensorInfo *predictions, const ITensorInfo *targets, ITensorInfo *output, const unsigned int k) |
| 121 | { |
| 122 | ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(predictions, targets, output, k)); |
| 123 | return Status{}; |
| 124 | } |
| 125 | |
| 126 | bool CPPTopKVKernel::is_parallelisable() const |
| 127 | { |
| 128 | return false; |
| 129 | } |
| 130 | |
| 131 | void CPPTopKVKernel::run(const Window &window, const ThreadInfo &info) |
| 132 | { |
| 133 | ARM_COMPUTE_UNUSED(window, info); |
| 134 | switch(_predictions->info()->data_type()) |
| 135 | { |
| 136 | case DataType::F32: |
| 137 | run_topkv<float>(); |
| 138 | break; |
| 139 | case DataType::F16: |
| 140 | run_topkv<half>(); |
| 141 | break; |
| 142 | case DataType::S32: |
| 143 | run_topkv<int>(); |
| 144 | break; |
| 145 | case DataType::QASYMM8: |
| 146 | run_topkv<uint8_t>(); |
| 147 | break; |
Sheri Zhang | 05b243a | 2020-03-16 14:07:51 +0000 | [diff] [blame] | 148 | case DataType::QASYMM8_SIGNED: |
| 149 | run_topkv<int8_t>(); |
| 150 | break; |
giuros01 | 1bf5e28 | 2018-12-21 14:57:48 +0000 | [diff] [blame] | 151 | default: |
| 152 | ARM_COMPUTE_ERROR("Not supported"); |
| 153 | } |
| 154 | } |
| 155 | } // namespace arm_compute |