# Data Management (DM)

`DM` objects are used to manage communication between the algebraic structures in PETSc (`Vec` and `Mat`) and mesh data structures
in PDE-based (or other) simulations. See, for structured grids `DMDA`, for staggered grids `DMSTAG`, and for unstructured grids `DMPLEX`.
Users guide chapter: [](part_dm).

<A HREF="../../../src/dm/tutorials/index.html">Examples</A><BR>

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