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C++: Difference between revisions
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===Execution=== | ===Execution=== | ||
<code>#include <execution></code><br> | <code>#include <execution></code><br> | ||
The execution header gives you tools for parallel execution.<br> | The execution header gives you tools for parallel execution (since C++17).<br> | ||
See [https://en.cppreference.com/w/cpp/algorithm/execution_policy_tag_t execution_policy_tag].<br> | See [https://en.cppreference.com/w/cpp/algorithm/execution_policy_tag_t execution_policy_tag].<br> | ||
[https://devblogs.microsoft.com/cppblog/using-c17-parallel-algorithms-for-better-performance/ C++17 Parallel Algorithms blog].<br> | [https://devblogs.microsoft.com/cppblog/using-c17-parallel-algorithms-for-better-performance/ C++17 Parallel Algorithms blog].<br> | ||
[https://developer.nvidia.com/blog/accelerating-standard-c-with-gpus-using-stdpar/ Nvidia Accelerating Standard C++ with GPUs Using stdpar]<br> | |||
;Parallel Sorting Example | ;Parallel Sorting Example | ||
<syntaxhighlight lang="cpp"> | <syntaxhighlight lang="cpp"> | ||
std::sort(std::execution::par_unseq, sorted.begin(), sorted.end()); | std::sort(std::execution::par_unseq, sorted.begin(), sorted.end()); | ||
</syntaxhighlight> | </syntaxhighlight> | ||
* <code>std::execution::seq</code> sequential | |||
* <code>std::execution::unseq</code> vectorized only (C++20) | |||
* <code>std::execution::par</code> parallel | |||
* <code>std::execution::par_unseq</code> parallel and vectorized | |||
===Random=== | ===Random=== | ||