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<center><a href="https://gitlab.com/petsc/petsc/-/blob/9fe822445bcdd45fb93170ff68fa7403d3f52f09/include/petscdmpatch.h">Actual source code: petscdmpatch.h</a></center><br>
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<a name="line1"> 1: </a><font color="#B22222">/*</font>
<a name="line2"> 2: </a><font color="#B22222"> DMPatch, for domains covered by sets of patches.</font>
<a name="line3"> 3: </a><font color="#B22222">*/</font>
<a name="line4"> 4: </a><font color="#A020F0">#pragma once</font>
<a name="line6"> 6: </a>#include <A href="../include/petscdm.h.html"><petscdm.h></A>
<a name="line8"> 8: </a><font color="#B22222">/* SUBMANSEC = DMPatch */</font>
<a name="line10"> 10: </a><font color="#B22222">/*S</font>
<a name="line11"> 11: </a><font color="#B22222"> <a href="../manualpages/DMPatch/DMPATCH.html">DMPATCH</a> - `<a href="../manualpages/DM/DM.html">DM</a>` object that encapsulates a domain divided into many patches</font>
<a name="line13"> 13: </a><font color="#B22222"> Level: intermediate</font>
<a name="line15"> 15: </a><font color="#B22222">.seealso: `<a href="../manualpages/DM/DM.html">DM</a>`, `<a href="../manualpages/DMPatch/DMPatchCreate.html">DMPatchCreate</a>()`, `DMPatchSolve()`, `<a href="../manualpages/DMPatch/DMPatchZoom.html">DMPatchZoom</a>()`, `DMPatchGetPatchSize()`, `DMPatchSetPatchSize()`,</font>
<a name="line16"> 16: </a><font color="#B22222"> `DMPatchGetCommSize()`, `DMPatchSetCommSize()`, `DMPatchGetCoarse()`, `DMPatchCreateGrid()`</font>
<a name="line17"> 17: </a><font color="#B22222">S*/</font>
<a name="line18"> 18: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/DMPatch/DMPatchCreate.html">DMPatchCreate</a>(<a href="../manualpages/Sys/MPI_Comm.html">MPI_Comm</a>, <a href="../manualpages/DM/DM.html">DM</a> *)</font></strong>;
<a name="line20"> 20: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/DMPatch/DMPatchZoom.html">DMPatchZoom</a>(<a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>, <a href="../manualpages/Sys/MPI_Comm.html">MPI_Comm</a>, <a href="../manualpages/DM/DM.html">DM</a> *, <a href="../manualpages/PetscSF/PetscSF.html">PetscSF</a> *, <a href="../manualpages/PetscSF/PetscSF.html">PetscSF</a> *)</font></strong>;
<a name="line21"> 21: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchSolve(<a href="../manualpages/DM/DM.html">DM</a>)</font></strong>;
<a name="line22"> 22: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchGetPatchSize(<a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a> *)</font></strong>;
<a name="line23"> 23: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchSetPatchSize(<a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>)</font></strong>;
<a name="line24"> 24: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchGetCommSize(<a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a> *)</font></strong>;
<a name="line25"> 25: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchSetCommSize(<a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>)</font></strong>;
<a name="line26"> 26: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchGetCoarse(<a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/DM/DM.html">DM</a> *)</font></strong>;
<a name="line27"> 27: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> DMPatchCreateGrid(<a href="../manualpages/Sys/MPI_Comm.html">MPI_Comm</a>, <a href="../manualpages/Sys/PetscInt.html">PetscInt</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>, <a href="../manualpages/Mat/MatStencil.html">MatStencil</a>, <a href="../manualpages/DM/DM.html">DM</a> *)</font></strong>;
<a name="line29"> 29: </a><font color="#B22222">/*</font>
<a name="line30"> 30: </a><font color="#B22222"> * We want each patch to consist of an entire <a href="../manualpages/DM/DM.html">DM</a>, <a href="../manualpages/DMDA/DMDA.html">DMDA</a> at first</font>
<a name="line31"> 31: </a><font color="#B22222"> - We cannot afford to store much more than the data from a single patch in memory</font>
<a name="line32"> 32: </a><font color="#B22222"> - No global <a href="../manualpages/PetscSection/PetscSection.html">PetscSection</a>, only <a href="../manualpages/IS/PetscLayout.html">PetscLayout</a></font>
<a name="line33"> 33: </a><font color="#B22222"> - Optional scatters</font>
<a name="line34"> 34: </a><font color="#B22222"> * There is a storable coarse level, which will also be a traditional <a href="../manualpages/DM/DM.html">DM</a> (<a href="../manualpages/DMDA/DMDA.html">DMDA</a> here)</font>
<a name="line35"> 35: </a><font color="#B22222"> * The local and global vectors correspond to a ghosted patch</font>
<a name="line36"> 36: </a><font color="#B22222"> * Need a way to activate a patch</font>
<a name="line37"> 37: </a><font color="#B22222"> * Jack in sizes for l/g vectors</font>
<a name="line38"> 38: </a><font color="#B22222"> - Need routine for viewing a full global vector</font>
<a name="line39"> 39: </a><font color="#B22222"> - Jed handles solver</font>
<a name="line40"> 40: </a><font color="#B22222">*/</font>
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