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
by Artur Laksberg and Herb Sutter
task_groupconcept proposed in this document is based on the common subset of the PPL and the TBB libraries, which also use
task_groupinternally to implement many of their own parallel algorithms. This proposal complements the high-level Parallel STL algorithms proposal  by enabling arbitrary fork-join parallelism, including arbitrary additional higher-level parallelism algorithms, to be built in a natural and portable way.
Together with , 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.