Thank you for the answer.
As I said, DMPlexGetGhostCellStratum gives me the bounds of the domain
boundaries (actual domain boundaries), that's what I called cStartGhost
in my first message. What I want is the bounds of the actual cells, or
the bounds of the overlapping cells.
Maybe this will help clarify my question: if I have a 1D mesh with two
cells I have this numbering on two procs with overlap = 1:
[0] 2-|-0-|-1-|
[1] |-1-|-0-|-2
The first proc have one "real" cell (0), one "overlap" cell (1) and one
boundary cell (2).
Here, DMPlexGetGhostCellStratum would give me cEndInterior = 2, where I
want 1.
Pierre
Le 2020-09-29 17:58, Mark Adams a écrit :
I believe it is:
ierr = DMPlexGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr);
ierr = DMPlexGetGhostCellStratum(dm, &cEndInterior,
NULL);CHKERRQ(ierr);
On Tue, Sep 29, 2020 at 11:34 AM Pierre Seize <[email protected]>
wrote:
Hello!
I have a parallel DMPlex, and I would like to loop on every "real"
cell.
It seems that the indexing is as such:
[cStart (always 0 I think), XXX [ -> actual cell
[XXX, cStartGhost [ -> parallel cells, as I have overlap = 1
[cStartGhost, cEndGhost= cEnd[ -> my finite volume boundaries cells.
I can get cStart and cEnd with DMPlexGetHeightStratum, and cStartGhost
and cEndGhost with DMPlexGetGhostCellStratum.
What I want is the bound XXX. Right now, I do loop from cStart to
cEnd,
and when I find a cell that gives me DMGetLabelValue(dm, "ghost", c,
&value) with a positive value I break my loop and take the current
cell
number as the wanted bound. I am not unsatisfied with this but I
wonder
if there is a more straightforward way to get what I want.
Thank you.
Pierre
--
Pierre Seize
