There could be some overlapping/redundancy between the default and the user-defined groups, so perhaps that was the intended behavior. Glad to hear it's possible to have access to everything.
Thanks, Noam On Thursday, January 11th, 2024 at 6:31 PM, Matthew Knepley <knep...@gmail.com> wrote: > On Thu, Jan 11, 2024 at 11:59 AM Noam T. <dontbugthed...@proton.me> wrote: > >> Without using the flag -dm_plex_gmsh_use_regions, the DMGetNumLabels says >> there are 5, named celltype, depth, cell/face/vertex sets. >> With the flag, the labels are celltype, depth, my_vol, my_surface (using the >> same example as before). >> Am I misusing the flag somehow, and I should be able to access those of >> cell/face/vertex as well? > > Shoot, yes this changed after another request. Yes, we can put in a flag for > that. Should not take long. > > Thanks, > > Matt > >> PS: Using PETSc 3.20.3 >> >> Thanks, >> Noam >> On Thursday, January 11th, 2024 at 5:28 PM, Matthew Knepley >> <knep...@gmail.com> wrote: >> >>> On Thu, Jan 11, 2024 at 11:18 AM Noam T. via petsc-users >>> <petsc-users@mcs.anl.gov> wrote: >>> >>>> Would it be feasible to have an option (e.g. new flag along the lines of >>>> -dm_plex_gmsh_...) that allows the user to access both the default sets >>>> (Cell / Face / Vertex) together with user-defined gorups (those under >>>> $PhysicalNames, available when using -dm_plex_gmsh_use_regions)? >>> >>> I am not sure I understand the question. When you turn on regions, it makes >>> extra labels, but the generic labels still exist. >>> >>> Thanks, >>> >>> Matt >>> >>>> That is, with a *.msh file containing >>>> >>>> $PhysicalNames >>>> 2 >>>> 2 100 "my_surface" >>>> 3 200 "my_vol" >>>> >>>> the return of DMGetLabelName(dm, n, name) would be (order may differ) >>>> >>>> n = 0, name = "celltype" >>>> n = 1, name = "depth" >>>> n = 2, name = "Cell Sets" >>>> n = 3, name = "my_vol" >>>> n = 4, name = "Face Sets" >>>> n = 5, name = "my_surface" >>>> ... >>>> >>>> I poked into src/dm/impls/plex/plexgmsh.c and have managed to print all >>>> the labels after changing a couple of variable values, so perhaps it is >>>> doable. >>>> The changes made are not a solution, simply naively set some variables to >>>> skip checking for the use_regions flag, so it understandably crashes soon >>>> after. >>>> >>>> Thanks, Noam >>> >>> -- >>> >>> 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/)
