How do I use parallel algorithms?

In C++, parallel algorithms are part of the C++ Standard Library, allowing for improved performance by utilizing multiple cores for executing algorithms concurrently. This can significantly speed up operations such as searching, sorting, and transforming data. The `` header provides execution policies that dictate how the algorithm should be executed, whether sequentially, in parallel, or vectorized. Simply include the appropriate execution policy when calling your algorithms to leverage parallel execution.

Here's an example demonstrating how to use parallel algorithms with the C++ Standard Library:

#include <iostream> #include <vector> #include <algorithm> #include <execution> int main() { std::vector data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; // Apply a transformation in parallel std::transform(std::execution::par, data.begin(), data.end(), data.begin(), [](int n) { return n * n; // Square each element }); // Output the results for (const auto& num : data) { std::cout << num << " "; } return 0; }

Parallel Algorithms C++ Standard Library Multithreading Execution Policies Performance Optimization

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