1 // Copyright 2019 Google LLC 2 // 3 // This source code is licensed under the BSD-style license found in the 4 // LICENSE file in the root directory of this source tree. 5 6 #pragma once 7 8 #include <gtest/gtest.h> 9 10 #include <algorithm> 11 #include <cassert> 12 #include <cmath> 13 #include <cstddef> 14 #include <cstdlib> 15 #include <functional> 16 #include <random> 17 #include <vector> 18 19 #include <xnnpack.h> 20 #include <xnnpack/AlignedAllocator.h> 21 #include <xnnpack/params-init.h> 22 #include <xnnpack/params.h> 23 24 25 class GAvgPoolCWMicrokernelTester { 26 public: 27 enum class Variant { 28 Native, 29 Scalar, 30 }; 31 elements(size_t elements)32 inline GAvgPoolCWMicrokernelTester& elements(size_t elements) { 33 assert(elements != 0); 34 this->elements_ = elements; 35 return *this; 36 } 37 elements()38 inline size_t elements() const { 39 return this->elements_; 40 } 41 channels(size_t channels)42 inline GAvgPoolCWMicrokernelTester& channels(size_t channels) { 43 assert(channels != 0); 44 this->channels_ = channels; 45 return *this; 46 } 47 channels()48 inline size_t channels() const { 49 return this->channels_; 50 } 51 qmin(uint8_t qmin)52 inline GAvgPoolCWMicrokernelTester& qmin(uint8_t qmin) { 53 this->qmin_ = qmin; 54 return *this; 55 } 56 qmin()57 inline uint8_t qmin() const { 58 return this->qmin_; 59 } 60 qmax(uint8_t qmax)61 inline GAvgPoolCWMicrokernelTester& qmax(uint8_t qmax) { 62 this->qmax_ = qmax; 63 return *this; 64 } 65 qmax()66 inline uint8_t qmax() const { 67 return this->qmax_; 68 } 69 iterations(size_t iterations)70 inline GAvgPoolCWMicrokernelTester& iterations(size_t iterations) { 71 this->iterations_ = iterations; 72 return *this; 73 } 74 iterations()75 inline size_t iterations() const { 76 return this->iterations_; 77 } 78 79 80 void Test(xnn_f32_gavgpool_cw_ukernel_function gavgpool, Variant variant = Variant::Native) const { 81 std::random_device random_device; 82 auto rng = std::mt19937(random_device()); 83 auto f32rng = std::bind(std::uniform_real_distribution<float>(), rng); 84 85 std::vector<float> x(elements() * channels() + XNN_EXTRA_BYTES / sizeof(float)); 86 std::vector<float> y(channels()); 87 std::vector<float> y_ref(channels()); 88 for (size_t iteration = 0; iteration < iterations(); iteration++) { 89 std::generate(x.begin(), x.end(), std::ref(f32rng)); 90 std::fill(y.begin(), y.end(), std::nanf("")); 91 92 // Compute reference results, without clamping. 93 for (size_t i = 0; i < channels(); i++) { 94 float acc = 0.0f; 95 for (size_t j = 0; j < elements(); j++) { 96 acc += x[i * elements() + j]; 97 } 98 y_ref[i] = acc / float(elements()); 99 } 100 101 // Compute clamping parameters. 102 const float accumulated_min = *std::min_element(y_ref.cbegin(), y_ref.cend()); 103 const float accumulated_max = *std::max_element(y_ref.cbegin(), y_ref.cend()); 104 const float accumulated_range = accumulated_max - accumulated_min; 105 const float y_min = accumulated_min + float(qmin()) / 255.0f * accumulated_range; 106 const float y_max = accumulated_max - float(255 - qmax()) / 255.0f * accumulated_range; 107 108 // Prepare parameters. 109 union xnn_f32_gavgpool_params params; 110 switch (variant) { 111 case Variant::Native: 112 xnn_init_f32_gavgpool_params( 113 ¶ms, 1.0f / float(elements()), y_min, y_max, elements()); 114 break; 115 case Variant::Scalar: 116 xnn_init_scalar_f32_gavgpool_params( 117 ¶ms, 1.0f / float(elements()), y_min, y_max, elements()); 118 break; 119 } 120 121 // Clamp reference results. 122 for (float& y_value : y_ref) { 123 y_value = std::max(std::min(y_value, y_max), y_min); 124 } 125 126 // Call optimized micro-kernel. 127 gavgpool(elements() * sizeof(float), channels(), x.data(), y.data(), ¶ms); 128 129 // Verify results. 130 for (size_t i = 0; i < channels(); i++) { 131 ASSERT_LE(y[i], y_max) 132 << "at position " << i << ", elements = " << elements() << ", channels = " << channels(); 133 ASSERT_GE(y[i], y_min) 134 << "at position " << i << ", elements = " << elements() << ", channels = " << channels(); 135 ASSERT_NEAR(y[i], y_ref[i], std::abs(y_ref[i]) * 1.0e-6f) 136 << "at position " << i << ", elements = " << elements() << ", channels = " << channels(); 137 } 138 } 139 } 140 141 private: 142 size_t elements_{1}; 143 size_t channels_{1}; 144 uint8_t qmin_{0}; 145 uint8_t qmax_{255}; 146 size_t iterations_{15}; 147 }; 148