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<TITLE>PCReset</TITLE>
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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/PC/PCReset.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PCReset"><H1>PCReset</H1></A>
Resets a <A HREF="../PC/PC.html#PC">PC</A> context to the pcsetupcalled = 0 state and removes any allocated <A HREF="../Vec/Vecs.html#Vecs">Vecs</A> and Mats
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../PC/PCReset.html#PCReset">PCReset</A>(<A HREF="../PC/PC.html#PC">PC</A> pc)
</PRE>
Collective on <A HREF="../PC/PC.html#PC">PC</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</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 preconditioner context
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
This allows a <A HREF="../PC/PC.html#PC">PC</A> to be reused for a different sized linear system but using the same options that have been previously set in the <A HREF="../PC/PC.html#PC">PC</A>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCCreate.html#PCCreate">PCCreate</A>(), <A HREF="../PC/PCSetUp.html#PCSetUp">PCSetUp</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ksp/pc/interface/precon.c.html#PCReset">src/ksp/pc/interface/precon.c</A>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/ksp/pc/impls/asm/asm.c.html#PCReset_ASM">PCReset_ASM in src/ksp/pc/impls/asm/asm.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/bddc/bddc.c.html#PCReset_BDDC">PCReset_BDDC in src/ksp/pc/impls/bddc/bddc.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/bjacobi/bjacobi.c.html#PCReset_BJacobi_Singleblock">PCReset_BJacobi_Singleblock in src/ksp/pc/impls/bjacobi/bjacobi.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/bjacobi/bjacobi.c.html#PCReset_BJacobi_Multiblock">PCReset_BJacobi_Multiblock in src/ksp/pc/impls/bjacobi/bjacobi.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/bjacobi/bjacobi.c.html#PCReset_BJacobi_Multiproc">PCReset_BJacobi_Multiproc in src/ksp/pc/impls/bjacobi/bjacobi.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/composite/composite.c.html#PCReset_Composite">PCReset_Composite in src/ksp/pc/impls/composite/composite.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/cp/cp.c.html#PCReset_CP">PCReset_CP in src/ksp/pc/impls/cp/cp.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/deflation/deflation.c.html#PCReset_Deflation">PCReset_Deflation in src/ksp/pc/impls/deflation/deflation.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/eisens/eisen.c.html#PCReset_Eisenstat">PCReset_Eisenstat in src/ksp/pc/impls/eisens/eisen.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/factor/cholesky/cholesky.c.html#PCReset_Cholesky">PCReset_Cholesky in src/ksp/pc/impls/factor/cholesky/cholesky.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/factor/icc/icc.c.html#PCReset_ICC">PCReset_ICC in src/ksp/pc/impls/factor/icc/icc.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/factor/ilu/ilu.c.html#PCReset_ILU">PCReset_ILU in src/ksp/pc/impls/factor/ilu/ilu.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/factor/lu/lu.c.html#PCReset_LU">PCReset_LU in src/ksp/pc/impls/factor/lu/lu.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/fieldsplit/fieldsplit.c.html#PCReset_FieldSplit">PCReset_FieldSplit in src/ksp/pc/impls/fieldsplit/fieldsplit.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/galerkin/galerkin.c.html#PCReset_Galerkin">PCReset_Galerkin in src/ksp/pc/impls/galerkin/galerkin.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/gamg/gamg.c.html#PCReset_GAMG">PCReset_GAMG in src/ksp/pc/impls/gamg/gamg.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/gasm/gasm.c.html#PCReset_GASM">PCReset_GASM in src/ksp/pc/impls/gasm/gasm.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/hara/pchara.cu.html#PCReset_HARA">PCReset_HARA in src/ksp/pc/impls/hara/pchara.cu</A><BR>
<A HREF="../../../src/ksp/pc/impls/hpddm/hpddm.cxx.html#PCReset_HPDDM">PCReset_HPDDM in src/ksp/pc/impls/hpddm/hpddm.cxx</A><BR>
<A HREF="../../../src/ksp/pc/impls/hypre/hypre.c.html#PCReset_HYPRE">PCReset_HYPRE in src/ksp/pc/impls/hypre/hypre.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/jacobi/jacobi.c.html#PCReset_Jacobi">PCReset_Jacobi in src/ksp/pc/impls/jacobi/jacobi.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/ksp/pcksp.c.html#PCReset_KSP">PCReset_KSP in src/ksp/pc/impls/ksp/pcksp.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/lmvm/lmvmpc.c.html#PCReset_LMVM">PCReset_LMVM in src/ksp/pc/impls/lmvm/lmvmpc.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/lsc/lsc.c.html#PCReset_LSC">PCReset_LSC in src/ksp/pc/impls/lsc/lsc.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/mg/mg.c.html#PCReset_MG">PCReset_MG in src/ksp/pc/impls/mg/mg.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/ml/ml.c.html#PCReset_ML">PCReset_ML in src/ksp/pc/impls/ml/ml.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/patch/pcpatch.c.html#PCReset_PATCH_Linear">PCReset_PATCH_Linear in src/ksp/pc/impls/patch/pcpatch.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/patch/pcpatch.c.html#PCReset_PATCH">PCReset_PATCH in src/ksp/pc/impls/patch/pcpatch.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/redundant/redundant.c.html#PCReset_Redundant">PCReset_Redundant in src/ksp/pc/impls/redundant/redundant.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/svd/svd.c.html#PCReset_SVD">PCReset_SVD in src/ksp/pc/impls/svd/svd.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/telescope/telescope.c.html#PCReset_Telescope">PCReset_Telescope in src/ksp/pc/impls/telescope/telescope.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/telescope/telescope_coarsedm.c.html#PCReset_Telescope_CoarseDM">PCReset_Telescope_CoarseDM in src/ksp/pc/impls/telescope/telescope_coarsedm.c</A><BR>
<A HREF="../../../src/ksp/pc/impls/telescope/telescope_dmda.c.html#PCReset_Telescope_dmda">PCReset_Telescope_dmda in src/ksp/pc/impls/telescope/telescope_dmda.c</A><BR>
<A HREF="../../../src/snes/impls/patch/snespatch.c.html#PCReset_PATCH_Nonlinear">PCReset_PATCH_Nonlinear in src/snes/impls/patch/snespatch.c</A><BR>
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