[Beowulf] Frontier Announcement

[Jeffrey Layton]

Don't forget that gcc supports both NV and AMD GPUs with OpenACC. That's
one of the lead compilers listed on the Frontier specs.

Jeff


On Wed, May 8, 2019 at 3:29 PM Richard Walsh <rbwcnslt at gmail.com> wrote:

>
> All,
>
> Cray has deprecated support for in OpenACC in light of the OpenMP 4.5 and
> 5.0 standards, and their target and data directives. NVIDIA’s PGI Compiler
> group will keep OpenACC going for a while, but on AMD devices ... maybe
> not.  That Cray will support only OpenMP on Frontier seems to be a logical
> certainty.
>
> So if you or yours want to run at speed on Frontier you should bone up on
> ROCm, HIP and OpenMP 4.5-5.0 ...
>
> :-)
>
> Cheers!
>
> rbw
>
> Sent from my iPhone
>
> > On May 8, 2019, at 12:47 PM, Jörg Saßmannshausen <
> sassy-work at sassy.formativ.net> wrote:
> >
> > Dear all,
> >
> > I think the answer to the question lies here:
> >
> > https://en.wikipedia.org/wiki/OpenACC
> >
> > As I follow these things rather loosely, my understanding was that
> OpenACC
> > should run on both nVidia and other GPUs. So maybe that is the reason
> why it
> > is a 'pure' AMD cluster where both GPUs and CPUs are from the same
> supplier?
> > IF all of that is working out and if it is really true that you can
> compile
> > and run OpenACC code on both types of GPUs, it would a be big win for
> AMD.
> >
> > Time will tell!
> >
> > All the best from my TARDIS!
> >
> > Jörg
> >
> > Am Dienstag, 7. Mai 2019, 16:59:48 BST schrieben Sie:
> >>>  I think it is interesting that they are using AMD for
> >>>
> >>> both the CPUs and GPUs
> >>
> >> I agree. That means a LOT of codes will have to be ported from CUDA to
> >> whatever AMD uses. I know AMD announced their HIP interface to convert
> >> CUDA code into something that will run on AMD processors, but I don't
> >> know how well that works in theory. Frankly, I haven't heard anything
> >> about it since it was announced at SC a few years ago.
> >>
> >> I would not be surprised if AMD pursued this bid quite agressively,
> >> possibly at a significant loss, for the opportunity to prove their GPUs
> >> can compete with NVIDIA and demonstrate that codes can be successfully
> >> converted from CUDA to something AMD GPUs can use to demonstrate GPU
> >> users don't need to be locked in to a single vendor. If so, this could
> >> be a costly gamble for the DOE and AMD, but if it pays off, I imagine it
> >> could change AMD's fortunes in HPC.
> >>
> >>  "Win on Sunday, sell on Monday" doesn't apply just to cars.
> >>
> >> Prentice
> >>
> >>> On 5/7/19 4:43 PM, Jörg Saßmannshausen wrote:
> >>> Hi Prentice,
> >>>
> >>> that looks interesting and I hope it means I will finally get the
> neutron
> >>> structure which was measured last year there! :-)
> >>>
> >>> On a more serious note: I think it is interesting that they are using
> AMD
> >>> for both the CPUs and GPUs. It sounds at least very fast of what they
> >>> want to build, lets hope their design will work as planned as well.
> >>>
> >>> All the best from London
> >>>
> >>> Jörg
> >>>
> >>> Am Dienstag, 7. Mai 2019, 10:32:42 BST schrieb Prentice Bisbal via
> > Beowulf:
> >>>> ORNL's Frontier System has been announced:
> >>>>
> >>>>
> https://www.hpcwire.com/2019/05/07/cray-amd-exascale-frontier-at-oak-ridg
> >>>> e/
> >
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