[petsc-users] DMNetworkGetEdgeRange() in parallel

[Miguel Angel Salazar de Troya]

Thanks. Once I obtain that Index Set with the routine
DMPlexCreateCellNumbering()
(I assume that the edges in DMNetwork correspond to cells in DMPlex) can I
use it to partition a vector with as many components as edges I have in my
network?

Thanks
Miguel

On Sun, Feb 22, 2015 at 12:15 PM, Matthew Knepley <knepley at gmail.com> wrote:

> On Sun, Feb 22, 2015 at 11:01 AM, Miguel Angel Salazar de Troya <
> salazardetroya at gmail.com> wrote:
>
>> Hi
>>
>> I noticed that the routine DMNetworkGetEdgeRange() returns the local
>> indices for the edge range. Is there any way to obtain the global indices?
>> So if my network has 10 edges, the processor 1 has the 0-4 edges and the
>> processor 2, the 5-9 edges, how can I obtain this information?
>>
>
> One of the points of DMPlex is we do not require a global numbering.
> Everything is numbered
> locally, and the PetscSF maps local numbers to local numbers in order to
> determine ownership.
>
> If you want to create a global numbering for some reason, you can using
> DMPlexCreatePointNumbering().
> There are also cell and vertex versions that we use for output, so you
> could do it just for edges as well.
>
>   Thanks,
>
>      Matt
>
>
>> Thanks
>> Miguel
>>
>> --
>> *Miguel Angel Salazar de Troya*
>> Graduate Research Assistant
>> Department of Mechanical Science and Engineering
>> University of Illinois at Urbana-Champaign
>> (217) 550-2360
>> salaza11 at illinois.edu
>>
>>
>
>
> --
> 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
>



-- 
*Miguel Angel Salazar de Troya*
Graduate Research Assistant
Department of Mechanical Science and Engineering
University of Illinois at Urbana-Champaign
(217) 550-2360
salaza11 at illinois.edu
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