[Beowulf] massive parallel processing application required
Robert G. Brown
rgb at phy.duke.edu
Wed Jan 31 10:55:31 EST 2007
On Wed, 31 Jan 2007, Mark Hahn wrote:
>> Climate code, especially when coupling between atmosphere and ocean models?
> seems like it would require some nontrivial physics, not to mention
> realistic input data. don't most climate codes also depend on huge
> multi-dimensional FFT's where the transpose is coded as all-to-all?
> here's an alternative: nbody physics. just put a bunch of particles in some
> empty space and see what they do as they interact through gravity. of
> course, gravity is all-to-all, but then again in a nontrivial sense, less
> coupled problems are less interesting...
Or another simple physics problem -- simulate e.g. the Ising problem, or
any of a number of problems in magnetism. Nearest neighbor
interactions, "known results".
And if it is just a matter of a nifty demo, don't forget the always
useful parallel mandelbrot set packages and/or rendering packages
(povray). I'm pretty sure both are still around -- I still use xep
to demo PVM, although I have hacked it a bit because it is now too easy
to get to the "bottom" of floating point resolution even on a single
processor, which actually kind of sucks as the display breaks down just
when you get way down into the set where things get very odd and spiky.
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Robert G. Brown http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
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