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<p class="MsoNormal">And you drill through hard rock to get to the hydrocarbons.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But Stu is right – it’s one of the more interesting massively parallel (but not necessarily embarrassingly) problems, because the propagation medium is anisotropic. By comparison SAR (Synthetic Aperture Radar), tomography,and finite element
electromagnetics processing are a doddle. Some mechanical FEM codes are tricky, and non-linear flow (shock waves, etc.) are complex.<o:p></o:p></p>
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<p class="MsoNormal">Everyone who deals with these sorts of problems is all about efficiency and “good approximations” – you typically start with a linearized approximation, and then iterate with something to get the nonlinear solution – all of this takes lots
o’ cycles.<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Beowulf <beowulf-bounces@beowulf.org> on behalf of Stu Midgley <sdm900@gmail.com><br>
<b>Reply-To: </b>"sdm900@gmail.com" <sdm900@gmail.com><br>
<b>Date: </b>Wednesday, June 13, 2018 at 7:35 PM<br>
<b>To: </b>"joe.landman@gmail.com" <joe.landman@gmail.com><br>
<b>Cc: </b>"beowulf@beowulf.org" <Beowulf@beowulf.org><br>
<b>Subject: </b>Re: [Beowulf] Working for DUG, new thead<o:p></o:p></span></p>
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<p class="MsoNormal">seismic processing is a MASSIVE user of compute resources. We run single processing steps that can take months on a 10PFlop machine...
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<p class="MsoNormal">On Thu, Jun 14, 2018 at 10:25 AM Joe Landman <<a href="mailto:joe.landman@gmail.com">joe.landman@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On 6/13/18 9:39 PM, Stu Midgley wrote:<o:p></o:p></p>
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<p class="MsoNormal">seismic processing - oil'n'gas not hard rock.<o:p></o:p></p>
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But ... you work with heavy metal (supercomputers that is) :D<br>
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Good to see you active here, BTW!<br>
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<p class="MsoNormal">On Thu, Jun 14, 2018 at 3:32 AM Jonathan Engwall <<a href="mailto:engwalljonathanthereal@gmail.com" target="_blank">engwalljonathanthereal@gmail.com</a>> wrote:<o:p></o:p></p>
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<p>Yes. Very good idea, it is a mining company in Ausralia.<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Dr Stuart Midgley<br>
<a href="mailto:sdm900@gmail.com" target="_blank">sdm900@gmail.com</a><o:p></o:p></p>
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<pre>_______________________________________________<o:p></o:p></pre>
<pre>Beowulf mailing list, <a href="mailto:Beowulf@beowulf.org" target="_blank">Beowulf@beowulf.org</a> sponsored by Penguin Computing<o:p></o:p></pre>
<pre>To change your subscription (digest mode or unsubscribe) visit <a href="http://www.beowulf.org/mailman/listinfo/beowulf" target="_blank">http://www.beowulf.org/mailman/listinfo/beowulf</a><o:p></o:p></pre>
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<br>
<o:p></o:p></p>
<pre>-- <o:p></o:p></pre>
<pre>Joe Landman<o:p></o:p></pre>
<pre>e: <a href="mailto:joe.landman@gmail.com" target="_blank">joe.landman@gmail.com</a><o:p></o:p></pre>
<pre>t: @hpcjoe<o:p></o:p></pre>
<pre>c: +1 734 612 4615<o:p></o:p></pre>
<pre>w: <a href="https://scalability.org" target="_blank">https://scalability.org</a><o:p></o:p></pre>
<pre>g: <a href="https://github.com/joelandman" target="_blank">https://github.com/joelandman</a><o:p></o:p></pre>
<pre>l: <a href="https://www.linkedin.com/in/joelandman" target="_blank">https://www.linkedin.com/in/joelandman</a><o:p></o:p></pre>
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<p class="MsoNormal">_______________________________________________<br>
Beowulf mailing list, <a href="mailto:Beowulf@beowulf.org" target="_blank">Beowulf@beowulf.org</a> sponsored by Penguin Computing<br>
To change your subscription (digest mode or unsubscribe) visit <a href="http://www.beowulf.org/mailman/listinfo/beowulf" target="_blank">
http://www.beowulf.org/mailman/listinfo/beowulf</a><o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Dr Stuart Midgley<br>
<a href="mailto:sdm900@gmail.com" target="_blank">sdm900@gmail.com</a><o:p></o:p></p>
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