28 lines
788 B
C++
28 lines
788 B
C++
#include "mandel.hpp"
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#include <omp.h>
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void mandelbrot_omp(unsigned num_threads, int d = D) {
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omp_set_num_threads(num_threads);
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int i,j ;
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# pragma omp parallel shared (d) private (i, j)
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{
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# pragma omp for schedule(guided, 1)
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for(i=0; i<H ;i ++) {
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for(j=0; j<W; j++) {
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auto xy = scale_xy(i, j);
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auto value = escape_time(xy.first, xy.second, d);
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auto k = 3*(j*W + i);
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std::tie(RGB[k], RGB[k+1], RGB[k+2]) = get_color(value);
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}
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}
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}
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}
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std::chrono::microseconds measure_time_omp(unsigned num_threads) {
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auto beg = std::chrono::high_resolution_clock::now();
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mandelbrot_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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