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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/IS/ISColoring.html "><small>Report Typos and Errors</small></a></div>
<A NAME="ISColoring"><H1>ISColoring</H1></A>
sets of <A HREF="../IS/IS.html#IS">IS</A>'s that define a coloring of the underlying indices
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
typedef struct _n_ISColoring* <A HREF="../IS/ISColoring.html#ISColoring">ISColoring</A>;
</PRE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
One should not access the *is records below directly because they may not yet
have been created. One should use <A HREF="../IS/ISColoringGetIS.html#ISColoringGetIS">ISColoringGetIS</A>() to make sure they are
created when needed.
<P>
When the coloring type is <A HREF="../IS/ISColoringType.html#ISColoringType">IS_COLORING_LOCAL</A> the coloring is in the local ordering of the unknowns.
That is the matching the local (ghosted) vector; a local to global mapping must be applied to map
them to the global ordering.
<P>
Developer Note: this is not a <A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../IS/ISColoringCreate.html#ISColoringCreate">ISColoringCreate</A>(), <A HREF="../IS/ISColoringGetIS.html#ISColoringGetIS">ISColoringGetIS</A>(), <A HREF="../IS/ISColoringView.html#ISColoringView">ISColoringView</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/vec/is/is/../../../../include/petscistypes.h.html#ISColoring">src/vec/is/is/../../../../include/petscistypes.h</A>
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