<div dir="ltr">Hi,<div><br></div><div>There's no formal released version of the code that runs the accelerated non-bonded kernels on PowerN architectures. But the upcoming 2016 release will do so. We're currently in beta mode, so trying out a download from <a href="http://manual.gromacs.org/documentation/">http://manual.gromacs.org/documentation/</a> would be most welcome feedback!</div><div><br></div><div>Mark</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Jun 20, 2016 at 7:30 AM Nima soltani <<a href="mailto:nima.slt@gmail.com">nima.slt@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<br>
Szilárd Páll <pall.szilard <at><br>
<a href="http://gmail.com" rel="noreferrer" target="_blank">gmail.com</a>> writes:<br>
<br>
><br>
> On Thu, Jun 18, 2015 at 2:50 PM,<br>
Baker D.J. <D.J.Baker <at> <a href="http://soton.ac.uk" rel="noreferrer" target="_blank">soton.ac.uk</a>><br>
wrote:<br>
> > Hello,<br>
> ><br>
> ><br>
> ><br>
> > I’m not sure that this is the<br>
correct place to send my question,<br>
however<br>
> > please bear with me and help me to<br>
redirect my enquiry if necessary.<br>
> ><br>
><br>
> I suggest we continue on the users'<br>
list, I just posted some<br>
> questions/suggestions there.<br>
><br>
> For the gmx-dev's record, I can<br>
confirm what Berk stated already, GPU<br>
> accelerated performance should be<br>
close to similar high-end Haswell<br>
> setups (see <a href="http://on-" rel="noreferrer" target="_blank">http://on-</a><br>
<a href="http://demand.gputechconf.com/gtc/2015/present" rel="noreferrer" target="_blank">demand.gputechconf.com/gtc/2015/present</a><br>
ation/S5434-Erik-Lindahl.pdf<br>
> for more details).<br>
><br>
> --<br>
> Szilárd<br>
><br>
> ><br>
> > We recently received delivery of<br>
two Power8 machines—one of the machines<br>
has<br>
> > a K40 GPU installed. I have read<br>
that interesting reports that Gromacs<br>
> > performs well on Power8 systems,<br>
especially if there’s a GPU card<br>
available.<br>
> > I have been doing some experiments,<br>
and so far I’ve have been very<br>
> > disappointed by the performance of<br>
Gromacs. At this stage I am just<br>
working<br>
> > on one of the “water” examples<br>
(1536). I am working with the very<br>
latest<br>
> > gromacs (5.1) and I have tried<br>
configuring with GMX_SIMD=IBM_VSX,<br>
however<br>
> > when I try a parallel run I still<br>
get this warning:<br>
> ><br>
> ><br>
> ><br>
> > WARNING: Using the slow plain C<br>
kernels. This should<br>
> ><br>
> > not happen during routine usage on<br>
supported platforms.<br>
<br>
<br>
<br>
<br>
<br>
Hi everyone<br>
I have the same problem on power7<br>
machine<br>
Slow plain C kernel warning appears on<br>
the screen and the performance is not<br>
what we had already expected<br>
Does anybody know how to correct this?<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
> ><br>
> ><br>
> ><br>
> > Could someone please advise how I<br>
should configure and install Gromacs to<br>
> > get the best out of our Power8<br>
machines.<br>
> ><br>
> ><br>
> ><br>
> > Best regards,<br>
> ><br>
> ><br>
> ><br>
> > David.<br>
> ><br>
> ><br>
> > --<br>
> > Gromacs Developers mailing list<br>
> ><br>
> > * Please search the archive at<br>
> ><br>
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> > posting!<br>
> ><br>
> > * Can't post? Read<br>
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