On Mon, May 9, 2016 at 2:04 AM, Yichao Yu <yyc1...@gmail.com> wrote: > On Mon, May 9, 2016 at 1:15 AM, Ford Ox <fordfo...@gmail.com> wrote: >> I have checked the link and read the article. Am I right that the parallel >> accelerator basically uses C code instead of julia to do the computation? >> That would be kinda shame dont you think? > > No I don't think so. > > IIUC it uses C for the threading API, it even has a backend using the > julia threading API. (And the julia threading API is very incomplete > and experimental). > And in general this is not so different from julia generating LLVM IR > (especially since LLVM has a C backend). Generating C is just usually > not the as efficient as generating LLVM IR since you'll have parser > overhead, much less flexible and expressive, unless, as in this case, > the function/API is in C.
Or in another word, it is at most a shame for LLVM IR for not having a threading construct (which, admittedly, is a very hard problem but people are working on it). > >> >> Dne pondělí 9. května 2016 7:00:38 UTC+2 Christian Peel napsal(a): >>> >>> > The usual solution is to devectorized your code and to use loops (except >>> > for matrix multiplication if you have large matrices). >>> >>> I am hopeful that ParallelAccelerator.jl [1][2] or similar projects can >>> enable fast vectorized Julia code >>> >>> [1] https://github.com/IntelLabs/ParallelAccelerator.jl >>> [2] http://julialang.org/blog/2016/03/parallelaccelerator >>> >>> On Sun, May 8, 2016 at 3:37 PM, feza <moham...@gmail.com> wrote: >>>> >>>> I mean the revised script runs just as fast if not a tad faster with the >>>> latest master as it does on 0.4.5 : ) >>>> >>>> >>>> On Sunday, May 8, 2016 at 5:20:08 PM UTC-4, Patrick Kofod Mogensen wrote: >>>>> >>>>> Same as v0.4, or same as before you changed the code? >>>>> >>>>> On Sunday, May 8, 2016 at 8:55:00 PM UTC+2, feza wrote: >>>>>> >>>>>> roughly the same speed. >>>>>> >>>>>> On Sunday, May 8, 2016 at 2:44:19 PM UTC-4, Patrick Kofod Mogensen >>>>>> wrote: >>>>>>> >>>>>>> out of curiosity, what about v0.5? >>> >>> >>> >>> >>> -- >>> chris...@ieee.org
