Anthony Barbier | c9afce5 | 2018-01-26 16:07:50 +0000 | [diff] [blame] | 1 | /* |
Michele Di Giorgio | d9eaf61 | 2020-07-08 11:12:57 +0100 | [diff] [blame] | 2 | * Copyright (c) 2018 Arm Limited. |
Anthony Barbier | c9afce5 | 2018-01-26 16:07:50 +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 "InstrumentsStats.h" |
Georgios Pinitas | d8734b5 | 2017-12-22 15:27:52 +0000 | [diff] [blame] | 25 | #include "arm_compute/core/utils/misc/Utility.h" |
Anthony Barbier | c9afce5 | 2018-01-26 16:07:50 +0000 | [diff] [blame] | 26 | |
| 27 | namespace arm_compute |
| 28 | { |
| 29 | namespace test |
| 30 | { |
| 31 | namespace framework |
| 32 | { |
| 33 | InstrumentsStats::InstrumentsStats(const std::vector<Measurement> &measurements) |
| 34 | : _min(nullptr), _max(nullptr), _median(nullptr), _mean(measurements.begin()->value().is_floating_point), _stddev(0.0) |
| 35 | { |
Anthony Barbier | c9afce5 | 2018-01-26 16:07:50 +0000 | [diff] [blame] | 36 | auto add_measurements = [](Measurement::Value a, const Measurement & b) |
| 37 | { |
| 38 | return a + b.value(); |
| 39 | }; |
| 40 | |
Michalis Spyrou | 40df1e9 | 2018-02-06 16:53:47 +0000 | [diff] [blame] | 41 | //Calculate min, max & median values |
| 42 | auto indices = arm_compute::utility::sort_indices(measurements); |
| 43 | _median = &measurements[indices[measurements.size() / 2]]; |
| 44 | _min = &measurements[indices[0]]; |
| 45 | _max = &measurements[indices[measurements.size() - 1]]; |
Anthony Barbier | c9afce5 | 2018-01-26 16:07:50 +0000 | [diff] [blame] | 46 | |
| 47 | Measurement::Value sum_values = std::accumulate(measurements.begin(), measurements.end(), Measurement::Value(_min->value().is_floating_point), add_measurements); |
| 48 | |
| 49 | // Calculate the relative standard deviation |
| 50 | _mean = sum_values / measurements.size(); |
| 51 | std::vector<Measurement::Value> diff(measurements.size(), _min->value().is_floating_point); |
| 52 | std::transform(measurements.begin(), measurements.end(), diff.begin(), [&](const Measurement & x) |
| 53 | { |
| 54 | return x.value() - _mean; |
| 55 | }); |
| 56 | auto sq_sum = std::inner_product(diff.begin(), diff.end(), diff.begin(), Measurement::Value(_min->value().is_floating_point)); |
| 57 | auto variance = sq_sum / measurements.size(); |
| 58 | _stddev = Measurement::Value::relative_standard_deviation(variance, _mean); |
| 59 | } |
| 60 | } // namespace framework |
| 61 | } // namespace test |
| 62 | } // namespace arm_compute |