An now back to your regularly scheduled discussion where Carol Merrill
is standing.
For the millenials (like Ryan) that won't get that reference. Hell, I
didn't get that reference, either, and I'm Gen X. That means Jeff is
(does the math) really old.
https://en.wikipedia.org/wiki/Carol_Merrill
Prentice
On 5/9/19 8:49 AM, Jeffrey Layton wrote:
Very serious. Someone does need help - and culture needs changing
(i.e. OpenMP). But apologies for posting this here. I've been watching
for OpenMP-Nazis and it looks like I found one.
Again - apologies for posting about this to the list.
An now back to your regularly scheduled discussion where Carol Merrill
is standing.
Jeff
On Thu, May 9, 2019 at 2:16 AM John Hearns via Beowulf
<beowulf@beowulf.org <mailto:beowulf@beowulf.org>> wrote:
Seriously? Wha.. what? Someone needs to get help.
And it wasn't me. I am a member of the People's Front of Julia.
(contrived Python reference intentional)
On Wed, 8 May 2019 at 22:57, Jeffrey Layton <layto...@gmail.com
<mailto:layto...@gmail.com>> wrote:
I wrote some OpenACC articles for HPC Admin Magazine. A number
of pro-OpenMP people attacked me on twitter (you know, OpenACC
sucks, OpenMP is great). I received a private email
threatening to kill me and my family if I didn't stop writing
about OpenACC. Given your pro-OpenMP, anti-OpenACC stance,
using the same tone as the threatening email, I wondered if
that email came from you.
On Wed, May 8, 2019, 17:48 Richard Walsh <rbwcn...@gmail.com
<mailto:rbwcn...@gmail.com>> wrote:
Huh ... ?? Weird, scary ...
Just MHO. Dropping off this thread now ...
rbw
Sent from my iPhone
On May 8, 2019, at 4:29 PM, Jeffrey Layton
<layto...@gmail.com <mailto:layto...@gmail.com>> wrote:
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 <mailto: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 <mailto: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 <mailto: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
<mailto: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/
>
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