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<blockquote type="cite">An now back to your regularly scheduled
discussion where Carol Merrill is standing.</blockquote>
</p>
<p>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. <br>
</p>
<p><a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Carol_Merrill">https://en.wikipedia.org/wiki/Carol_Merrill</a></p>
<p><br>
</p>
<pre class="moz-signature" cols="72">Prentice</pre>
<div class="moz-cite-prefix">On 5/9/19 8:49 AM, Jeffrey Layton
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJfzO5SZS_4UiqmuX-JqG55Fp=qPp+KDcrXg-Qur84JPOvFuuA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div>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.</div>
<div><br>
</div>
<div>Again - apologies for posting about this to the list.</div>
<div><br>
</div>
<div>An now back to your regularly scheduled discussion where
Carol Merrill is standing.</div>
<div><br>
</div>
<div>Jeff</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, May 9, 2019 at 2:16 AM
John Hearns via Beowulf <<a
href="mailto:beowulf@beowulf.org" moz-do-not-send="true">beowulf@beowulf.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>Seriously? Wha.. what? Someone needs to get help.</div>
<div>And it wasn't me. I am a member of the People's Front
of Julia.</div>
<div><br>
</div>
<div>(contrived Python reference intentional)</div>
</div>
<br>
<div class="gmail_quote">
<div class="gmail_attr" dir="ltr">On Wed, 8 May 2019 at
22:57, Jeffrey Layton <<a
href="mailto:laytonjb@gmail.com" target="_blank"
moz-do-not-send="true">laytonjb@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;padding-left:1ex;border-left:1px solid
rgb(204,204,204)">
<div dir="auto">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.
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div class="gmail_attr" dir="ltr">On Wed, May 8, 2019,
17:48 Richard Walsh <<a
href="mailto:rbwcnslt@gmail.com" target="_blank"
moz-do-not-send="true">rbwcnslt@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;padding-left:1ex;border-left:1px solid
rgb(204,204,204)">
<div dir="auto">
<div><br>
</div>
Huh ... ?? Weird, scary ...
<div><br>
</div>
<div>Just MHO. Dropping off this thread now ... </div>
<div><br>
</div>
<div>rbw<br>
<div>
<div><br>
<div
id="gmail-m_3000566766801438338gmail-m_-7306792741157320527m_-8516805147089884302AppleMailSignature"
dir="ltr">Sent from my iPhone</div>
<div dir="ltr"><br>
On May 8, 2019, at 4:29 PM, Jeffrey Layton
<<a href="mailto:laytonjb@gmail.com"
rel="noreferrer" target="_blank"
moz-do-not-send="true">laytonjb@gmail.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="auto">I was just pointing out
that gcc has Open ACC capability on AMD
GPUs.
<div dir="auto"><br>
</div>
<div dir="auto">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?</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div class="gmail_attr" dir="ltr">On
Wed, May 8, 2019, 15:48 Richard Walsh
<<a
href="mailto:rbwcnslt@gmail.com"
rel="noreferrer" target="_blank"
moz-do-not-send="true">rbwcnslt@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;padding-left:1ex;border-left:1px
solid rgb(204,204,204)">
<div dir="auto">
<div><br>
</div>
Jeffry/All,
<div><br>
</div>
<div>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 ...
?? </div>
<div><br>
</div>
<div>GNU supports OpenMP too ... in
my view, PVM is to MPI as OpenACC
is to OpenMP 4.5-5.0 ... </div>
<div><br>
</div>
<div>Cheers!</div>
<div><br>
</div>
<div>rbw <br>
<br>
<div
id="gmail-m_3000566766801438338gmail-m_-7306792741157320527m_-8516805147089884302m_1864114278220207205AppleMailSignature"
dir="ltr">Sent from my iPhone</div>
<div dir="ltr"><br>
On May 8, 2019, at 2:36 PM,
Jeffrey Layton <<a
href="mailto:laytonjb@gmail.com"
rel="noreferrer noreferrer"
target="_blank"
moz-do-not-send="true">laytonjb@gmail.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div>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.</div>
<div><br>
</div>
<div>Jeff</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div class="gmail_attr"
dir="ltr">On Wed, May 8,
2019 at 3:29 PM Richard
Walsh <<a
href="mailto:rbwcnslt@gmail.com"
rel="noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">rbwcnslt@gmail.com</a>>
wrote:<br>
</div>
<blockquote
class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;padding-left:1ex;border-left:1px solid rgb(204,204,204)"><br>
All,<br>
<br>
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.<br>
<br>
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 ... <br>
<br>
:-)<br>
<br>
Cheers!<br>
<br>
rbw<br>
<br>
Sent from my iPhone<br>
<br>
> On May 8, 2019, at
12:47 PM, Jörg
Saßmannshausen <<a
href="mailto:sassy-work@sassy.formativ.net"
rel="noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">sassy-work@sassy.formativ.net</a>>
wrote:<br>
> <br>
> Dear all,<br>
> <br>
> I think the answer to
the question lies here:<br>
> <br>
> <a
href="https://en.wikipedia.org/wiki/OpenACC"
rel="noreferrer
noreferrer noreferrer"
target="_blank"
moz-do-not-send="true">https://en.wikipedia.org/wiki/OpenACC</a><br>
> <br>
> As I follow these
things rather loosely, my
understanding was that
OpenACC <br>
> should run on both
nVidia and other GPUs. So
maybe that is the reason
why it <br>
> is a 'pure' AMD
cluster where both GPUs
and CPUs are from the same
supplier?<br>
> IF all of that is
working out and if it is
really true that you can
compile <br>
> and run OpenACC code
on both types of GPUs, it
would a be big win for
AMD.<br>
> <br>
> Time will tell!<br>
> <br>
> All the best from my
TARDIS!<br>
> <br>
> Jörg<br>
> <br>
> Am Dienstag, 7. Mai
2019, 16:59:48 BST
schrieben Sie:<br>
>>> I think it
is interesting that they
are using AMD for<br>
>>> <br>
>>> both the CPUs
and GPUs<br>
>> <br>
>> I agree. That
means a LOT of codes will
have to be ported from
CUDA to<br>
>> whatever AMD
uses. I know AMD announced
their HIP interface to
convert<br>
>> CUDA code into
something that will run on
AMD processors, but I
don't<br>
>> know how well
that works in theory.
Frankly, I haven't heard
anything<br>
>> about it since it
was announced at SC a few
years ago.<br>
>> <br>
>> I would not be
surprised if AMD pursued
this bid quite
agressively,<br>
>> possibly at a
significant loss, for the
opportunity to prove their
GPUs<br>
>> can compete with
NVIDIA and demonstrate
that codes can be
successfully<br>
>> converted from
CUDA to something AMD GPUs
can use to demonstrate GPU<br>
>> users don't need
to be locked in to a
single vendor. If so, this
could<br>
>> be a costly
gamble for the DOE and
AMD, but if it pays off, I
imagine it<br>
>> could change
AMD's fortunes in HPC.<br>
>> <br>
>> "Win on Sunday,
sell on Monday" doesn't
apply just to cars.<br>
>> <br>
>> Prentice<br>
>> <br>
>>> On 5/7/19
4:43 PM, Jörg
Saßmannshausen wrote:<br>
>>> Hi Prentice,<br>
>>> <br>
>>> that looks
interesting and I hope it
means I will finally get
the neutron<br>
>>> structure
which was measured last
year there! :-)<br>
>>> <br>
>>> On a more
serious note: I think it
is interesting that they
are using AMD<br>
>>> for both the
CPUs and GPUs. It sounds
at least very fast of what
they<br>
>>> want to
build, lets hope their
design will work as
planned as well.<br>
>>> <br>
>>> All the best
from London<br>
>>> <br>
>>> Jörg<br>
>>> <br>
>>> Am Dienstag,
7. Mai 2019, 10:32:42 BST
schrieb Prentice Bisbal
via <br>
> Beowulf:<br>
>>>> ORNL's
Frontier System has been
announced:<br>
>>>> <br>
>>>> <a
href="https://www.hpcwire.com/2019/05/07/cray-amd-exascale-frontier-at-oak-ridg"
rel="noreferrer
noreferrer noreferrer"
target="_blank"
moz-do-not-send="true">https://www.hpcwire.com/2019/05/07/cray-amd-exascale-frontier-at-oak-ridg</a><br>
>>>> e/<br>
> <br>
>
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