Network RAM revisited
James.P.Lux at jpl.nasa.gov
Thu May 29 23:12:58 EDT 2003
There's also a similar thing being done in FDTD (finite difference time
domain) simulation in electromagnetics. You have unstructured grids of
varying densities, over which you explicitly solve Maxwell's equations.
----- Original Message -----
From: "Kim Branson" <kim.branson at csiro.au>
To: "Tim Wait" <waitt at saic.com>
Cc: <beowulf at beowulf.org>
Sent: Thursday, May 29, 2003 4:13 PM
Subject: Re: Network RAM revisited
> On Friday, May 30, 2003, at 06:16 AM, Tim Wait wrote:
> > Greg Lindahl wrote:
> >> And no, there is no current machine capable of doing 1km forecasts.
> > For traditional hydrostatic models on rectilinear meshes, maybe.
> > Non-hydrostatic models on adaptive unstructred meshes are a whole
> > 'nother story. Of course, that means implementing different physics
> > for cells less than about 5-10 km. But certainly doable.
> So by 'adaptive unstructured' you mean the size of the grid cell in the
> region varies depending on how much data you have?
> lots of data -> smaller cells. So how does one deal with the edges of
> the cells? Sounds a little bit like the spatial decomposition approach
> in molecular dynamics.
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