# 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="plexsection.c.html">plexsection.c</a><br>
<a href="plexorient.c.html">plexorient.c</a><br>
<a href="plexdistribute.c.html">plexdistribute.c</a><br>
<a href="plextree.c.html">plextree.c</a><br>
<a href="plexfem.c.html">plexfem.c</a><br>
<a href="plexsfc.c.html">plexsfc.c</a><br>
<a href="plexexodusii.c.html">plexexodusii.c</a><br>
<a href="plexrefine.c.html">plexrefine.c</a><br>
<a href="plexdd.c.html">plexdd.c</a><br>
<a href="plexmetric.c.html">plexmetric.c</a><br>
<a href="plexfluent.c.html">plexfluent.c</a><br>
<a href="plex.c.html">plex.c</a><br>
<a href="plexreorder.c.html">plexreorder.c</a><br>
<a href="plexindices.c.html">plexindices.c</a><br>
<a href="plexsubmesh.c.html">plexsubmesh.c</a><br>
<a href="plexceed.c.html">plexceed.c</a><br>
<a href="plexpartition.c.html">plexpartition.c</a><br>
<a href="gmshlex.h.html">gmshlex.h</a><br>
<a href="plexadapt.c.html">plexadapt.c</a><br>
<a href="plexextrude.c.html">plexextrude.c</a><br>
<a href="plexgeometry.c.html">plexgeometry.c</a><br>
<a href="plexgmsh.c.html">plexgmsh.c</a><br>
<a href="plexcreate.c.html">plexcreate.c</a><br>
<a href="plexfvm.c.html">plexfvm.c</a><br>
<a href="plexegads.c.html">plexegads.c</a><br>
<a href="plexgenerate.c.html">plexgenerate.c</a><br>
<a href="plexglvis.c.html">plexglvis.c</a><br>
<a href="plexpoint.c.html">plexpoint.c</a><br>
<a href="plexinterpolate.c.html">plexinterpolate.c</a><br>
<a href="plexnatural.c.html">plexnatural.c</a><br>
<a href="plexvtu.c.html">plexvtu.c</a><br>
<a href="plexpreallocate.c.html">plexpreallocate.c</a><br>
<a href="plexcoarsen.c.html">plexcoarsen.c</a><br>
<a href="plexproject.c.html">plexproject.c</a><br>
<a href="pointqueue.c.html">pointqueue.c</a><br>
<a href="plexply.c.html">plexply.c</a><br>
<a href="plexcheckinterface.c.html">plexcheckinterface.c</a><br>
<a href="plexvtk.c.html">plexvtk.c</a><br>
<a href="plexcgns.c.html">plexcgns.c</a><br>

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Directories
<p><a href="exodusii/index.html">exodusii</a><br>
<a href="generators/index.html">generators</a><br>
<a href="adaptors/index.html">adaptors</a><br>
<a href="cgns/index.html">cgns</a><br>
<a href="hdf5/index.html">hdf5</a><br>
<a href="tests/index.html">tests</a><br>
<a href="ftn-custom/index.html">ftn-custom</a><br>
<a href="transform/index.html">transform</a><br>
<a href="tutorials/index.html">tutorials</a><br>