New paper: N3711, Task Groups As a Lower Level C++ Library Solution To Fork-...—Laksberg, Sutter

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N3711.pdfA new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3711

Date: 2013-08-15

Task Groups As a Lower Level C++ Library Solution To Fork-Join Parallelism

by Artur Laksberg and Herb Sutter

Excerpt:

The task_group concept proposed in this document is based on the common subset of the PPL and the TBB libraries, which also use task_group internally to implement many of their own parallel algorithms. This proposal complements the high-level Parallel STL algorithms proposal [2] by enabling arbitrary fork-join parallelism, including arbitrary additional higher-level parallelism algorithms, to be built in a natural and portable way.

Together with [2], we believe this offers a viable alternative to a language-based proposal for low-level fork-joined parallelism with competitive (or in some cases better) usability, generality, and performance.

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