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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="MatGetBrowsOfAcols"><H1>MatGetBrowsOfAcols</H1></A>
Creates a SeqAIJ matrix by taking rows of B that equal to nonzero columns of local A
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Mat/MatGetBrowsOfAcols.html#MatGetBrowsOfAcols">MatGetBrowsOfAcols</A>(<A HREF="../Mat/Mat.html#Mat">Mat</A> A,<A HREF="../Mat/Mat.html#Mat">Mat</A> B,<A HREF="../Mat/MatReuse.html#MatReuse">MatReuse</A> scall,<A HREF="../IS/IS.html#IS">IS</A> *rowb,<A HREF="../IS/IS.html#IS">IS</A> *colb,<A HREF="../Mat/Mat.html#Mat">Mat</A> *B_seq)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</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>A,B </B></TD><TD>- the matrices in mpiaij format
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>scall </B></TD><TD>- either <A HREF="../Mat/MatReuse.html#MatReuse">MAT_INITIAL_MATRIX</A> or <A HREF="../Mat/MatReuse.html#MatReuse">MAT_REUSE_MATRIX</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>rowb, colb </B></TD><TD>- index sets of rows and columns of B to extract (or NULL)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>rowb, colb </B></TD><TD>- index sets of rows and columns of B to extract
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>B_seq </B></TD><TD>- the sequential matrix generated
</TD></TR></TABLE>
<P>
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/mat/impls/aij/mpi/mpiaij.c.html#MatGetBrowsOfAcols">src/mat/impls/aij/mpi/mpiaij.c</A>
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