DA question

[Amit.Itagi at seagate.com]

Hi Berend,

A detailed explanation of the finite difference scheme is given here :

http://en.wikipedia.org/wiki/Finite-difference_time-domain_method


Thanks

Rgds,
Amit



                                                                           
             Berend van Wachem                                             
             <berend at chalmers.                                             
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Dear Amit,

Could you explain how the two grids are attached?
I am using multiple DA's for multiple structured grids glued together.
I've done the gluing with setting up various IS objects. From the
multiple DA's, one global variable vector is formed. Is that what you
are looking for?

Best regards,

Berend.


Amit.Itagi at seagate.com wrote:
> Hi,
>
> Is it possible to use DA to perform finite differences on two staggered
> regular grids (as in the electromagnetic finite difference time domain
> method) ? Surrounding nodes from one grid are used to update the value in
> the dual grid. In addition, local manipulations need to be done on the
> nodal values.
>
> Thanks
>
> Rgds,
> Amit
>