Re: What CPU extensions can we assume are available by arch?

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On Mon, 27 Apr 2020 16:23:39 +0100
Dave Love <loveshack@xxxxxxxxxxxxxxxxx> wrote:

> Jun Aruga <jaruga@xxxxxxxxxx> writes:
> 
> >> > For the better user experience, we are promoting the system
> >> > library for both RPM and Debian based Linux distributions.
> >>
> >> What system library, for what purpose?
> >
> > Hi Dave,
> > The simde system library is
> >
> > * simde-devel in Fedora and EPEL [1]
> > * libsimde-dev in Debian [2]
> 
> They're packages for a header-only system, not libraries, hence my
> confusion.
> 
> Who's pushing this, and how do I present an HPC performance
> engineering perspective?
> 
> > The purpose is to build and ship SIMD implemented software RPM such
> > as bowite2 [3] and minimap2 [4] on non-x86_64 CPU architecture such
> > as aarch64, ppc64le and s390x.
> 
> Well, what I've already said from some experience and research.
> Where's the POWER and S390 support?  All I saw is x86 and arm.  We've
> heard there's ppc64le compatibility support anyhow, which is rising

gcc provides compat x86 intrinsics via "x86intrin.h", they were
successfully used eg. by darktable (raw photo sw)


		Dan

> up my list to investigate for work.  Who's going to do bioinformatics
> on Blue Boxes?  Bioinf causes enough trouble on x86...
> 
> There's been an issue for bowtie2 for years, and I've long had it in
> copr, though it probably needs updating there.  Has someone done the
> unresponsive maintainer thing for Adam Huffman (who is, or was, back
> more in that area)?
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