On Fri, Jul 8, 2022 at 10:26 PM Mike Michell <mi.mike1...@gmail.com> wrote:
> I am using DMPlex for a code with written in Fortran in 2D and 3D. There > were two questions. > > - As a follow up of the previous inquiry: > https://www.mail-archive.com/petsc-users@mcs.anl.gov/msg43856.html > Is the local-to-local halo exchange available in Fortran now or still > pending? Currently local-to-global and global-to-local communication are > used since local-to-local has not been allowed for Fortran. > I just checked, and this Fortran binding is present in main and the latest release. Thanks, Matt > - One code solves discretized equations at each vertex, and another code I > want to couple physics is solving equations at each cell centroid. > Basically, the value at cell centroid needs to be mapped to vertex (or vice > versa) through interpolation/extrapolation for coupling of two codes. Does > petsc function provide this kind of mapping between cell centroid and > vertex? The grids for the two codes can be overlapped. I was trying to find > some FEM infrastructures in petsc, but so far havent found that kind of > functionality. Can I get any comments on that? > > Thanks, > Mike > > -- 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/>