Parallel Patterns Library: Difference between revisions
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The '''Parallel Patterns Library''' is a [[Microsoft]] library designed for use by native C++ developers that provides features for [[multicore programming]].<ref>{{cite web | url = http://paper.li/visualc/news/2011/03/12 | title = The Visual C++ Weekly | date = March 12, 2011}}</ref> It was first bundled with [[Visual Studio 2010]]. It resembles the [[C++ Standard Library]] in style and works well with the C++11 language feature, lambdas, also introduced with [[Visual Studio 2010]]. |
The '''Parallel Patterns Library''' is a [[Microsoft]] library designed for use by native C++ developers that provides features for [[multicore programming]].<ref>{{cite web | url = http://paper.li/visualc/news/2011/03/12 | title = The Visual C++ Weekly | date = March 12, 2011 | access-date = August 14, 2011 | archive-url = https://web.archive.org/web/20111008024206/http://paper.li/visualc/news/2011/03/12 | archive-date = October 8, 2011 | url-status = dead }}</ref> It was first bundled with [[Visual Studio 2010]]. It resembles the [[C++ Standard Library]] in style and works well with the C++11 language feature, lambdas, also introduced with [[Visual Studio 2010]]. |
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For example, this sequential loop: |
For example, this sequential loop: |
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Revision as of 06:17, 30 April 2020
The Parallel Patterns Library is a Microsoft library designed for use by native C++ developers that provides features for multicore programming.[1] It was first bundled with Visual Studio 2010. It resembles the C++ Standard Library in style and works well with the C++11 language feature, lambdas, also introduced with Visual Studio 2010.
For example, this sequential loop:
for (int x=0; x < width; ++x)
{
//Something parallelizable
}
Can be made into a parallel loop by replacing the for with a parallel_for:
#include <ppl.h>
// . . .
Concurrency::parallel_for (0, width, [=](int x)
{
//Something parallelizable
});
This still requires the developer to know that the loop is parallelizable, but all the other work is done by the library.
MSDN[2] describes the Parallel Patterns Library as an "imperative programming model that promotes scalability and ease-of-use for developing concurrent applications." It uses the Concurrency Runtime for scheduling and resource management and provides generic, type-safe algorithms and containers for use in parallel applications.
References
- ^ "The Visual C++ Weekly". March 12, 2011. Archived from the original on October 8, 2011. Retrieved August 14, 2011.
- ^ "Parallel Patterns Library (PPL) on MSDN".
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