19 lines
505 B
C++
19 lines
505 B
C++
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#include "for_each.hpp"
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#include <omp.h>
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// for_each_omp
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void for_each_omp(size_t nthreads) {
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#pragma omp parallel for num_threads(nthreads)
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for(size_t i=0; i<vec.size(); i++) {
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vec[i] = std::tan(vec[i]);
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}
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}
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std::chrono::microseconds measure_time_omp(size_t num_threads) {
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auto beg = std::chrono::high_resolution_clock::now();
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for_each_omp(num_threads);
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auto end = std::chrono::high_resolution_clock::now();
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return std::chrono::duration_cast<std::chrono::microseconds>(end - beg);
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}
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