[Beowulf] Good demo applications for small, slow cluster

Lux, Jim (337C) james.p.lux at jpl.nasa.gov
Thu Aug 22 04:20:29 PDT 2013


Yes..
Like the example in Dan McCracken's FORTRAN textbook.  A 2D plate with a square hole in the middle and different boundary conditions on the edges.

Simple algorithm, so the person doesn't get wound up in the details of the FEM calculation. Lots of potential ways to partition the problem (different geometric chunks, for instance). But easy to make computationally big.



From: John Hearns <hearnsj at googlemail.com<mailto:hearnsj at googlemail.com>>
Date: Thursday, August 22, 2013 1:05 AM
To: Jim Lux <james.p.lux at jpl.nasa.gov<mailto:james.p.lux at jpl.nasa.gov>>, "beowulf at beowulf.org<mailto:beowulf at beowulf.org>" <beowulf at beowulf.org<mailto:beowulf at beowulf.org>>
Subject: Re: [Beowulf] Good demo applications for small, slow cluster


Jim - how about heat transport?
Simple model of a cold flat plate heated to a constant N degrees at one point or edge.
You split into square cells and solve heat transport equation in each cell.
Temperature plot vs time makes nice movie.
You add more MPI processes and the model runs faster or you can have more cells per fixed solve time.
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