[Beowulf] Working for DUG, new thead

[Lux, Jim (337K)]

And you drill through hard rock to get to the hydrocarbons.

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.

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.


From: Beowulf <beowulf-bounces at beowulf.org> on behalf of Stu Midgley <sdm900 at gmail.com>
Reply-To: "sdm900 at gmail.com" <sdm900 at gmail.com>
Date: Wednesday, June 13, 2018 at 7:35 PM
To: "joe.landman at gmail.com" <joe.landman at gmail.com>
Cc: "beowulf at beowulf.org" <Beowulf at beowulf.org>
Subject: Re: [Beowulf] Working for DUG, new thead

seismic processing is a MASSIVE user of compute resources.  We run single processing steps that can take months on a 10PFlop machine...


On Thu, Jun 14, 2018 at 10:25 AM Joe Landman <joe.landman at gmail.com<mailto:joe.landman at gmail.com>> wrote:



On 6/13/18 9:39 PM, Stu Midgley wrote:
seismic processing - oil'n'gas not hard rock.

But ... you work with heavy metal (supercomputers that is) :D

Good to see you active here, BTW!



On Thu, Jun 14, 2018 at 3:32 AM Jonathan Engwall <engwalljonathanthereal at gmail.com<mailto:engwalljonathanthereal at gmail.com>> wrote:

Yes. Very good idea, it is a mining company in Ausralia.


--
Dr Stuart Midgley
sdm900 at gmail.com<mailto:sdm900 at gmail.com>



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