I was just pointing out that gcc has Open ACC capability on AMD GPUs. I didn't realize you part of the OpenMP Nazis. Were you the one that threatened me and my family because I wrote about OpenACC?
On Wed, May 8, 2019, 15:48 Richard Walsh <rbwcn...@gmail.com> wrote: > > Jeffry/All, > > Yes ... but given the choice of using OpenACC or OpenMP (if you are not > going to write CUDA-HIP code for that extra 10% of performance) which > captures most (all?) of the features of OpenACC, is a standard likely to > outlive OpenACC, and should run on any vendor’s accelerators, including > whatever Intel comes up with ... why would you write in OpenACC ... ?? > > GNU supports OpenMP too ... in my view, PVM is to MPI as OpenACC is to > OpenMP 4.5-5.0 ... > > Cheers! > > rbw > > Sent from my iPhone > > On May 8, 2019, at 2:36 PM, Jeffrey Layton <layto...@gmail.com> wrote: > > 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 <rbwcn...@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-w...@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/ >> > >> > _______________________________________________ >> > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin >> Computing >> > To change your subscription (digest mode or unsubscribe) visit >> https://beowulf.org/cgi-bin/mailman/listinfo/beowulf >> _______________________________________________ >> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >> To change your subscription (digest mode or unsubscribe) visit >> https://beowulf.org/cgi-bin/mailman/listinfo/beowulf >> >
_______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
