# 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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Source files
<p><a href="daindex.c.html">daindex.c</a><br>
<a href="dascatter.c.html">dascatter.c</a><br>
<a href="da.c.html">da.c</a><br>
<a href="dagtona.c.html">dagtona.c</a><br>
<a href="dareg.c.html">dareg.c</a><br>
<a href="dainterp.c.html">dainterp.c</a><br>
<a href="dacorn.c.html">dacorn.c</a><br>
<a href="dapreallocate.c.html">dapreallocate.c</a><br>
<a href="grvtk.c.html">grvtk.c</a><br>
<a href="dageometry.c.html">dageometry.c</a><br>
<a href="daview.c.html">daview.c</a><br>
<a href="dadd.c.html">dadd.c</a><br>
<a href="dalocal.c.html">dalocal.c</a><br>
<a href="da3.c.html">da3.c</a><br>
<a href="da2.c.html">da2.c</a><br>
<a href="gr2.c.html">gr2.c</a><br>
<a href="gr1.c.html">gr1.c</a><br>
<a href="dagetelem.c.html">dagetelem.c</a><br>
<a href="dagtol.c.html">dagtol.c</a><br>
<a href="dasub.c.html">dasub.c</a><br>
<a href="grglvis.c.html">grglvis.c</a><br>
<a href="daltol.c.html">daltol.c</a><br>
<a href="dadestroy.c.html">dadestroy.c</a><br>
<a href="dadist.c.html">dadist.c</a><br>
<a href="dapf.c.html">dapf.c</a><br>
<a href="dacreate.c.html">dacreate.c</a><br>
<a href="fdda.c.html">fdda.c</a><br>
<a href="da1.c.html">da1.c</a><br>
<a href="daghost.c.html">daghost.c</a><br>
<a href="dagetarray.c.html">dagetarray.c</a><br>

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Directories
<p><a href="tests/index.html">tests</a><br>
<a href="kokkos/index.html">kokkos</a><br>
<a href="ftn-custom/index.html">ftn-custom</a><br>
<a href="hypre/index.html">hypre</a><br>