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parallel_for.cpp
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55 lines (35 loc) · 1.01 KB
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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;
}