什么是英特尔 IPP 库中的外线程？
What is external threading in Intel's IPP library?
我正在阅读英特尔的 Integrated Performance Primitives C 和 C++ 库。他们提到 外部线程 作为新功能之一。
New API’s for external threading is more effective than internal
threading. source
什么是 外线程 以及它与 C++ 中的 std::thread 有什么关系？
在 IPP 中：
内部线程 - 在基元内部
外螺纹 - 在应用程序级别
Intel IPP 8.2 continues deprecation of internal threading that was
started in version 7.1. The threaded static libraries will be
available as a separate download, and code developed with these
libraries will still work as before. The ThreadedFunctionsList.txt
file in ...\Documentation\en_US\ipp\ lists functions that are
available in an internally threaded format. However, multi-threaded
libraries are deprecated and moving to external threading is
recommended for the following reasons:
Internal (inside a primitive) threading is significantly less
effective than external (at the application level) threading.
与std::thread外螺纹无关。
IPP 中的 "Ready for external threading" 基本上意味着，对于所有（几乎所有，除了函数，算法不适合线程）功能（功能组）函数参数列表包含足够的 input/output 组织外线程的参数。因此，一些函数 API 被修改为外线程。
可以是地址、偏移量、服务缓冲区等，在多线程中执行一个功能，用于按块处理一维矢量，或按切片或瓦片处理二维图像。这将很有帮助，尤其是随着 vectors/images 现在的增长（更多百万像素需要处理:)）。
我正在阅读英特尔的 Integrated Performance Primitives C 和 C++ 库。他们提到 外部线程 作为新功能之一。
New API’s for external threading is more effective than internal threading. source
什么是 外线程 以及它与 C++ 中的 std::thread 有什么关系？
在 IPP 中：
内部线程 - 在基元内部
外螺纹 - 在应用程序级别
Intel IPP 8.2 continues deprecation of internal threading that was started in version 7.1. The threaded static libraries will be available as a separate download, and code developed with these libraries will still work as before. The ThreadedFunctionsList.txt file in ...\Documentation\en_US\ipp\ lists functions that are available in an internally threaded format. However, multi-threaded libraries are deprecated and moving to external threading is recommended for the following reasons:
Internal (inside a primitive) threading is significantly less effective than external (at the application level) threading.
与std::thread外螺纹无关。
"Ready for external threading" 基本上意味着，对于所有（几乎所有，除了函数，算法不适合线程）功能（功能组）函数参数列表包含足够的 input/output 组织外线程的参数。因此，一些函数 API 被修改为外线程。
可以是地址、偏移量、服务缓冲区等，在多线程中执行一个功能，用于按块处理一维矢量，或按切片或瓦片处理二维图像。这将很有帮助，尤其是随着 vectors/images 现在的增长（更多百万像素需要处理:)）。