| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "telnov_a_integral_rectangle/tbb/include/ops_tbb.hpp" | ||
| 2 | |||
| 3 | #include <cmath> | ||
| 4 | #include <cstdint> | ||
| 5 | |||
| 6 | #include "oneapi/tbb/blocked_range.h" | ||
| 7 | #include "oneapi/tbb/parallel_reduce.h" | ||
| 8 | #include "telnov_a_integral_rectangle/common/include/common.hpp" | ||
| 9 | |||
| 10 | namespace telnov_a_integral_rectangle { | ||
| 11 | |||
| 12 | 32 | TelnovAIntegralRectangleTBB::TelnovAIntegralRectangleTBB(const InType &in) { | |
| 13 | SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 14 | GetInput() = in; | ||
| 15 | GetOutput() = 0; | ||
| 16 | 32 | } | |
| 17 | |||
| 18 | 32 | bool TelnovAIntegralRectangleTBB::ValidationImpl() { | |
| 19 |
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32 | return GetInput().first > 0 && GetInput().second > 0; |
| 20 | } | ||
| 21 | |||
| 22 | 32 | bool TelnovAIntegralRectangleTBB::PreProcessingImpl() { | |
| 23 | 32 | GetOutput() = 0.0; | |
| 24 | 32 | return true; | |
| 25 | } | ||
| 26 | |||
| 27 | 32 | bool TelnovAIntegralRectangleTBB::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 | const double result = | ||
| 38 | 64 | oneapi::tbb::parallel_reduce(oneapi::tbb::blocked_range<int64_t>(0, total_points), 0.0, | |
| 39 | 32 | [n, d, a, h](const oneapi::tbb::blocked_range<int64_t> &range, double local_sum) { | |
| 40 |
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156071 | for (int64_t idx = range.begin(); idx != range.end(); ++idx) { |
| 41 | int64_t tmp = idx; | ||
| 42 | double f_value = 0.0; | ||
| 43 | |||
| 44 |
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862640 | for (int dim = 0; dim < d; ++dim) { |
| 45 | 711964 | const int coord_index = static_cast<int>(tmp % n); | |
| 46 | 711964 | tmp /= n; | |
| 47 | |||
| 48 | 711964 | const double x = a + ((static_cast<double>(coord_index) + 0.5) * h); | |
| 49 | 711964 | f_value += x; | |
| 50 | } | ||
| 51 | |||
| 52 | 150676 | local_sum += f_value; | |
| 53 | } | ||
| 54 | return local_sum; | ||
| 55 | 102 | }, [](double lhs, double rhs) { return lhs + rhs; }); | |
| 56 | |||
| 57 | 32 | GetOutput() = result * std::pow(h, d); | |
| 58 | 32 | return true; | |
| 59 | } | ||
| 60 | |||
| 61 | 32 | bool TelnovAIntegralRectangleTBB::PostProcessingImpl() { | |
| 62 | 32 | return true; | |
| 63 | } | ||
| 64 | |||
| 65 | } // namespace telnov_a_integral_rectangle | ||
| 66 |