1# Data Management (DM) 2 3`DM` objects are used to manage communication between the algebraic structures in PETSc (`Vec` and `Mat`) and mesh data structures 4in PDE-based (or other) simulations. See, for structured grids `DMDA`, for staggered grids `DMSTAG`, and for unstructured grids `DMPLEX`. 5Users guide chapter: [](part_dm). 6 7<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/tutorials/index.html">Examples</A><BR> 8 9