[Bug libfortran/78379] Processor-specific versions for matmul
jvdelisle at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Nov 22 21:05:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78379
--- Comment #21 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
(In reply to Thomas Koenig from comment #19)
> Created attachment 40120 [details]
> Updated patch
>
> Well, here's an update also for AVX512F.
>
> I can confirm the patch gives the same performance as the AVX
> version on a machine that supports AVX. Untested on AVX512, because
> I don't have a machine for that.
>
> Adding AVX2 would be fairly trivial.
>
> I'm not sure that yanking out the info into the new cpuinfo.h header
> file is the way to go, but I am not sure of a better way to do it.
>
> Other comments?
I wonder if there is one in the gcc compile farm. Is the AVX512 a Knights
Landing feature? Which machines have it. (time to google)
More information about the Gcc-bugs
mailing list