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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
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<A NAME="PCMGSetAdaptInterpolation"><H1>PCMGSetAdaptInterpolation</H1></A>
Adapt the interpolator based upon a vector space which should be accurately captured by the next coarser mesh, and thus accurately interpolated.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../PC/PCMGSetAdaptInterpolation.html#PCMGSetAdaptInterpolation">PCMGSetAdaptInterpolation</A>(<A HREF="../PC/PC.html#PC">PC</A> pc, <A HREF="../Sys/PetscBool.html#PetscBool">PetscBool</A> adapt)
</PRE>
Logically Collective on <A HREF="../PC/PC.html#PC">PC</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>pc </B></TD><TD>- the multigrid context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>adapt </B></TD><TD>- flag for adaptation of the interpolator
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-pc_mg_adapt_interp </B></TD><TD>- Turn on adaptation
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-pc_mg_adapt_interp_n <int> </B></TD><TD>- The number of modes to use, should be divisible by dimension
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-pc_mg_adapt_interp_coarse_space <type> </B></TD><TD>- The type of coarse space: polynomial, harmonic, eigenvector, generalized_eigenvector
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
MG, set, Galerkin
<BR>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCMGGetAdaptInterpolation.html#PCMGGetAdaptInterpolation">PCMGGetAdaptInterpolation</A>(), <A HREF="../PC/PCMGSetGalerkin.html#PCMGSetGalerkin">PCMGSetGalerkin</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ksp/pc/impls/mg/mg.c.html#PCMGSetAdaptInterpolation">src/ksp/pc/impls/mg/mg.c</A>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/ksp/pc/impls/mg/mg.c.html#PCMGSetAdaptInterpolation_MG">PCMGSetAdaptInterpolation_MG in src/ksp/pc/impls/mg/mg.c</A><BR>
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