[libcxx-commits] [PATCH] D59791: [pstl] Add a serial backend for the PSTL

Fri Apr 5 14:06:41 PDT 2019

ldionne added a comment.

In D59791#1442727 <https://reviews.llvm.org/D59791#1442727>, @MikeDvorskiy wrote:

> Hi Louis,
>
> Actually, there is a draft of Parallel STL back-end  API documentation. Probably, not so detailed, but there is. I sent it Thomas several month ago. I've just sent you as well.
>  M.b. make sense to put one into the repo?
>  And of course , don't hesitate writing directly me about Parallel STL  first to prevent wasting time for guessing)..
>
> In essence. I think we don't need to write a special serial back-end if we want a serial execution by a parallel policy. According to PSTL design we can  just additional compile time dispatching om "pattern of bricks"  design level. It will do a re-direct to the serial patterns. See "is_parallelization_preferred". 
>  Furthermore, we can do just one change within "is_parallelization_preferred"  or even, within the parallel policy traits. But I tend to "is_parallelization_preferred" and avoid the policy traits modification.
>
> For example,
>  [...]

Per today's discussion, there IS interest for having a serial backend from multiple vendors. I think we all agreed that this was worth implementing, now I have to figure out how to implement it properly.

Repository:
  rPSTL pstl

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59791/new/

https://reviews.llvm.org/D59791