taskflow/benchmarks/for_each/omp.cpp at task_isolation · ModuleWorks/taskflow · GitHub

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#include "for_each.hpp"

#include <omp.h>

// for_each_omp

void for_each_omp(size_t nthreads) {

#pragma omp parallel for num_threads(nthreads)

for(size_t i=0; i<vec.size(); i++) {

vec[i] = std::tan(vec[i]);

}

std::chrono::microseconds measure_time_omp(size_t num_threads) {

auto beg = std::chrono::high_resolution_clock::now();

for_each_omp(num_threads);

auto end = std::chrono::high_resolution_clock::now();

return std::chrono::duration_cast<std::chrono::microseconds>(end - beg);

}

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