> On 12 Apr 2022, at 5:20 PM, Ce Qin <[email protected]> wrote: > > I am sorry for the unclear description. > > By hierarchical, I mean that each cell in the coarse mesh marked for > refinement is subdivided into several small cells.
[Par]Mmg does not do that. They generate unstructured meshes without a particular hierarchy between the input and output meshes. Thanks, Pierre > For example, the mesh refined by the SBR method is hierarchical. > > Best regards, > Ce > > > > Matthew Knepley <[email protected] <mailto:[email protected]>> 于2022年4月12日周二 > 18:47写道： > On Tue, Apr 12, 2022 at 2:10 AM Ce Qin <[email protected] > <mailto:[email protected]>> wrote: > Thanks for your reply, Matthew. > > One more question, I want to get a hierarchical mesh after mesh adaptation, > so does the adaptation method implemented in ParMMG support this feature? > > What exactly does that mean? > > Thanks, > > Matt > > Best regards, > Ce > > Matthew Knepley <[email protected] <mailto:[email protected]>> 于2022年4月11日周一 > 21:17写道： > On Fri, Apr 1, 2022 at 10:14 AM Ce Qin <[email protected] > <mailto:[email protected]>> wrote: > Dear all, > > I want to implement the adaptive finite element method using the DMPlex > interface. So I would like to know whether DMPlex supports local (also > hierarchical) refinements of tetrahedron elements. I found that there is an > adaptation method called SBR, but it seems that it only supports triangle > elements. > > Sorry this took me a while. > > You are right, I have not implemented the 3D version yet. It is > straightforward, but in the paper there are 96 cases. I would like > to automatically generate that, but I need to figure out how that would go. > Right now all the adaptation requests have been for > 2D, or used ParMMG which works in 3D for PETSc right now. > > Thanks, > > Matt > > Best regards, > Ce > > > -- > 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 > > https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/> > > > -- > 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 > > https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
