[petsc-users] DMDACreateSection

gouarin loic.gouarin at math.u-psud.fr
Wed Apr 27 10:17:34 CDT 2016


I would like to know if it is possible to use DMDACreateSection to 
create a grid for Stokes problem for example using Q2-Q1 finite element 
discretization. I read old threads that tell that the implementation was 
not yet finished. And there is some comments in the code like "this is 
wrong" that tell me that it may be not available.

It could be great to use DMDA like DMPlex.

I use dmcomposite to do two grids but sections seems to be more easy to 
use and probably more efficient for the creation of the non zero 
structure of the matrix that solves the problem.


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