| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "afanasyev_a_integ_rect_method/omp/include/ops_omp.hpp" | ||
| 2 | |||
| 3 | #include <cmath> | ||
| 4 | #include <vector> | ||
| 5 | |||
| 6 | #include "afanasyev_a_integ_rect_method/common/include/common.hpp" | ||
| 7 | |||
| 8 | namespace afanasyev_a_integ_rect_method { | ||
| 9 | namespace { | ||
| 10 | |||
| 11 | 2160000 | double ExampleIntegrand(const std::vector<double> &x) { | |
| 12 | double s = 0.0; | ||
| 13 |
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8640000 | for (double xi : x) { |
| 14 | 6480000 | s += xi * xi; | |
| 15 | } | ||
| 16 | 2160000 | return std::exp(-s); | |
| 17 | } | ||
| 18 | |||
| 19 | } // namespace | ||
| 20 | |||
| 21 | 12 | AfanasyevAIntegRectMethodOMP::AfanasyevAIntegRectMethodOMP(const InType &in) { | |
| 22 | SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 23 | 12 | GetInput() = in; | |
| 24 | GetOutput() = 0.0; | ||
| 25 | 12 | } | |
| 26 | |||
| 27 | 12 | bool AfanasyevAIntegRectMethodOMP::ValidationImpl() { | |
| 28 | 12 | return (GetInput() > 0); | |
| 29 | } | ||
| 30 | |||
| 31 | 12 | bool AfanasyevAIntegRectMethodOMP::PreProcessingImpl() { | |
| 32 | 12 | return true; | |
| 33 | } | ||
| 34 | |||
| 35 | 12 | bool AfanasyevAIntegRectMethodOMP::RunImpl() { | |
| 36 | 12 | const int n = GetInput(); | |
| 37 |
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12 | if (n <= 0) { |
| 38 | return false; | ||
| 39 | } | ||
| 40 | |||
| 41 | const int k_dim = 3; | ||
| 42 | |||
| 43 | 12 | const double h = 1.0 / static_cast<double>(n); | |
| 44 | |||
| 45 | double sum = 0.0; | ||
| 46 | |||
| 47 | 12 | #pragma omp parallel for collapse(3) reduction(+ : sum) default(none) shared(n, h, k_dim) | |
| 48 | for (int i = 0; i < n; ++i) { | ||
| 49 | for (int j = 0; j < n; ++j) { | ||
| 50 | for (int k = 0; k < n; ++k) { | ||
| 51 | std::vector<double> x = {(static_cast<double>(i) + 0.5) * h, (static_cast<double>(j) + 0.5) * h, | ||
| 52 | (static_cast<double>(k) + 0.5) * h}; | ||
| 53 | sum += ExampleIntegrand(x); | ||
| 54 | } | ||
| 55 | } | ||
| 56 | } | ||
| 57 | |||
| 58 | const double volume = std::pow(h, k_dim); | ||
| 59 | 12 | GetOutput() = sum * volume; | |
| 60 | |||
| 61 | 12 | return true; | |
| 62 | } | ||
| 63 | |||
| 64 | 12 | bool AfanasyevAIntegRectMethodOMP::PostProcessingImpl() { | |
| 65 | 12 | return true; | |
| 66 | } | ||
| 67 | |||
| 68 | } // namespace afanasyev_a_integ_rect_method | ||
| 69 |