[petsc-users] The possibility of applying DA to governing multi-block data structure

[Matthew Knepley]

On Wed, Aug 8, 2012 at 2:30 AM, C.-C. Chiou <ccchiou2012 at gmail.com> wrote:

> Dear all,
>
> For concerning more general geometry of physical domain, for some
> situations,
> we need to apply the multi-block mesh. The attached figure (or
> alternatively the following link) illustrates one of examples.
>
> https://dl.dropbox.com/u/17189529/share_documents/IMAG0003.jpg
>
> Have you ever dealt with such kind of case with application of the PETSc
> object 'DA' ?
>

Our intention for this is that you use a DMComposite structure. Let us know
if the documentation is unclear
on anything, since it is somewhat new.

  Thanks,

     Matt


> Suppose we build multiple DA(or DM) for governing the multi-block data
> structure,
> in other words, we respectively build a DA for each block of mesh.
> Especially in parallel computing,
> how can we manage and control the communications between blocks of data
> accurately and efficiently?
> And, how can we ensure the correctness of parallel computational results?
>
> I wonder whether some possible application of PETSc object 'DA' (or DM) is
> sufficient for dealing with cases in multi-block mesh.
>
>
> Sincerely regards.
>
>
> Chuei-Ching Chiou
>
>
> --
> Chuei-Ching Chiou,
> Ph. D student,
> Aerothermal & Plasma Physics Laboratory
> Department of Mechanical Engineering
> National Chiao Tung University
> Hsinchu 30010, TAIWAN
> TEL: +886-35712121 ext. 55175
> E-mail: C <staystay.me99g at g2.nctu.edu.tw>CChiou2012 at gmail.com
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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