| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "telnov_a_integral_rectangle/omp/include/ops_omp.hpp" | ||
| 2 | |||
| 3 | #include <omp.h> | ||
| 4 | |||
| 5 | #include <cmath> | ||
| 6 | #include <cstdint> | ||
| 7 | |||
| 8 | #include "telnov_a_integral_rectangle/common/include/common.hpp" | ||
| 9 | |||
| 10 | namespace telnov_a_integral_rectangle { | ||
| 11 | |||
| 12 | 32 | TelnovAIntegralRectangleOMP::TelnovAIntegralRectangleOMP(const InType &in) { | |
| 13 | SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 14 | GetInput() = in; | ||
| 15 | GetOutput() = 0; | ||
| 16 | 32 | } | |
| 17 | |||
| 18 | 32 | bool TelnovAIntegralRectangleOMP::ValidationImpl() { | |
| 19 |
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32 | return GetInput().first > 0 && GetInput().second > 0; |
| 20 | } | ||
| 21 | |||
| 22 | 32 | bool TelnovAIntegralRectangleOMP::PreProcessingImpl() { | |
| 23 | 32 | GetOutput() = 0.0; | |
| 24 | 32 | return true; | |
| 25 | } | ||
| 26 | |||
| 27 | 32 | bool TelnovAIntegralRectangleOMP::RunImpl() { | |
| 28 | 32 | const int n = GetInput().first; | |
| 29 | 32 | const int d = GetInput().second; | |
| 30 | |||
| 31 | const double a = 0.0; | ||
| 32 | const double b = 1.0; | ||
| 33 | 32 | const double h = (b - a) / static_cast<double>(n); | |
| 34 | |||
| 35 | 32 | const auto total_points = static_cast<int64_t>(std::pow(n, d)); | |
| 36 | |||
| 37 | double result = 0.0; | ||
| 38 | |||
| 39 | 32 | #pragma omp parallel for default(none) reduction(+ : result) shared(total_points, n, d, a, h) | |
| 40 | for (int64_t idx = 0; idx < total_points; idx++) { | ||
| 41 | int64_t tmp = idx; | ||
| 42 | double f_value = 0.0; | ||
| 43 | |||
| 44 | for (int dim = 0; dim < d; dim++) { | ||
| 45 | const int coord_index = static_cast<int>(tmp % n); | ||
| 46 | tmp /= n; | ||
| 47 | |||
| 48 | const double x = a + ((static_cast<double>(coord_index) + 0.5) * h); | ||
| 49 | f_value += x; | ||
| 50 | } | ||
| 51 | |||
| 52 | result += f_value; | ||
| 53 | } | ||
| 54 | |||
| 55 | 32 | result *= std::pow(h, d); | |
| 56 | |||
| 57 | 32 | GetOutput() = result; | |
| 58 | 32 | return true; | |
| 59 | } | ||
| 60 | |||
| 61 | 32 | bool TelnovAIntegralRectangleOMP::PostProcessingImpl() { | |
| 62 | 32 | return true; | |
| 63 | } | ||
| 64 | |||
| 65 | } // namespace telnov_a_integral_rectangle | ||
| 66 |