Le 27/03/2024 à 14:54, jesse koops a écrit :
I tried that but I found the interface awkward and there was really no
performance bonus. It was in the early phase of experimentation and I
didn't save it, so it could very well be that I got the compiler
settings wrong and simd was not used. But if t
I like assembler, and I do use SIMD intrinsincs in some of my code (not
R), but sparingly.
The issue is more than portability between platforms, but also portability
between processors - if you write your optimized code using AVX, it might
not take advantage of newer AVX512 cpus.
In many
I tried that but I found the interface awkward and there was really no
performance bonus. It was in the early phase of experimentation and I
didn't save it, so it could very well be that I got the compiler
settings wrong and simd was not used. But if that was the case, there
would still be the prob
Le 26/03/2024 à 15:51, Tomas Kalibera a écrit :
On 3/26/24 10:53, jesse koops wrote:
Hello R-package-devel,
I recently got inspired by the rcppsimdjson package to try out simd
registers. It works fantastic on my computer but I struggle to find
information on how to make it portable. It doesn't
Thanks, the source of digest seems especially helpful. Ironically, I
actually used only 10 or so lines with simd code in the package in a
single function that is a bottleneck. It gives a very noticable
performance boost, even with unaligned vectors, and something about
directly using processor regi
On 27 March 2024 at 08:48, jesse koops wrote:
| Thank you, I was not aware of the easy way to search CRAN. I looked at
| rcppsimdjson of course, but couldn't figure it out since it is done in
| the simdjson library if interpret it correclty, not within the R
| ecosystem and I didn't know how that
On 3/27/24 08:39, jesse koops wrote:
Of course you are correct about the portability. But since at ;least
one other CRAN package by a renowned author does it succesfully, I
figured I'd experiment first on my machine and learn about portability
later. Thank you for the links and the warning about
Thank you, I was not aware of the easy way to search CRAN. I looked at
rcppsimdjson of course, but couldn't figure it out since it is done in
the simdjson library if interpret it correclty, not within the R
ecosystem and I didn't know how that would change things. Writing R
extensions assumes a lot
Of course you are correct about the portability. But since at ;least
one other CRAN package by a renowned author does it succesfully, I
figured I'd experiment first on my machine and learn about portability
later. Thank you for the links and the warning about the bug. I was
aware of that, however I
Thank you very much, that looks promising. Though if I look at your
congigure.ac script, also extremely daunting and far above my current
level of understanding. I guess I'll start with the autoconf manual
then.
Op di 26 mrt 2024 om 16:04 schreef Vincent Dorie :
>
> Hi Jesse,
>
> What I've done is
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