Re: [petsc-users] DMDA with 0 in lx, ly, lz ... or how to create a DMDA for a subregion

Take a look at these posts from last year and see if they will help you at least get a slice: https://lists.mcs.anl.gov/pipermail/petsc-users/2021-January/043037.html https://lists.mcs.anl.gov/pipermail/petsc-users/2021-

[petsc-users] DMDA with 0 in lx, ly, lz ... or how to create a DMDA for a subregion

Dear PETSc community, in our CFD code we use a 3D DMDA to organize our data. Now I need to compute a derived quantity in a subregion of the global domain and to write these data to disk for further post-processing. The subregion is actually a planar slice for now,