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taskflow/examples/parallel_for.cpp at master · code-in-cpp/taskflow · GitHub

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// This program demonstrates how to use Taskflow to

// write loop-based parallelism.

#include <taskflow/taskflow.hpp>

#include <cassert>

#include <numeric>

// Procedure: for_each_on_range

void for_each_on_range(int N) {

tf::Executor executor;

tf::Taskflow taskflow;

std::vector<int> range(N);

std::iota(range.begin(), range.end(), 0);

taskflow.for_each(range.begin(), range.end(), [&] (int i) {

printf("for_each on container item: %d\n", i);

});

executor.run(taskflow).get();

taskflow.dump(std::cout);

}

// Procedure: for_each_on_index

void for_each_on_index(int N) {

tf::Executor executor;

tf::Taskflow taskflow;

// [0, N) with step size 2

taskflow.for_each_index(0, N, 2, [] (int i) {

printf("for_each_index on index: %d\n", i);

});

executor.run(taskflow).get();

taskflow.dump(std::cout);

}

// ----------------------------------------------------------------------------

// Function: main

int main() {

for_each_on_range(100);

for_each_on_index(100);

return 0;

}

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