# 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).
Examples
ex1.c
ex10.c
ex11.c
ex12.c
ex13.c
ex14.c
ex15.c
ex16.c
ex17.c
ex18.c
ex19.c
ex2.c
ex20.c
ex23.c
ex3.c
ex30.c
ex32.c
ex4.c
ex40.c
ex41.c
ex42.c
ex43.c
ex5.c
ex50.c
ex51.c
ex6.c
ex7.c
ex8.c
ex9.c
makefile