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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="MatCreateVecs"><H1>MatCreateVecs</H1></A>
Get vector(s) compatible with the matrix, i.e. with the same parallel layout
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatCreateVecs(Mat mat,Vec *right,Vec *left)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>mat </B> -the matrix
<br>
<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>right </B></TD><TD>- (optional) vector that the matrix can be multiplied against
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>left </B></TD><TD>- (optional) vector that the matrix vector product can be stored in
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The blocksize of the returned vectors is determined by the row and column block sizes set with <A HREF="../Mat/MatSetBlockSizes.html#MatSetBlockSizes">MatSetBlockSizes</A>() or the single blocksize (same for both) set by <A HREF="../Mat/MatSetBlockSize.html#MatSetBlockSize">MatSetBlockSize</A>().
<P>
Notes: These are new vectors which are not owned by the <A HREF="../Mat/Mat.html#Mat">Mat</A>, they should be destroyed in <A HREF="../Vec/VecDestroy.html#VecDestroy">VecDestroy</A>() when no longer needed
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatCreate.html#MatCreate">MatCreate</A>(), <A HREF="../Vec/VecDestroy.html#VecDestroy">VecDestroy</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/interface/matrix.c.html#MatCreateVecs">src/mat/interface/matrix.c</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
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<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/mat/examples/tutorials/ex9.c.html">src/mat/examples/tutorials/ex9.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex4.c.html">src/ksp/ksp/examples/tutorials/ex4.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex10.c.html">src/ksp/ksp/examples/tutorials/ex10.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex42.c.html">src/ksp/ksp/examples/tutorials/ex42.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex49.c.html">src/ksp/ksp/examples/tutorials/ex49.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex63.cxx.html">src/ksp/ksp/examples/tutorials/ex63.cxx.html</A><BR>
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<A HREF="../../../src/ksp/ksp/examples/tutorials/ex15f.F.html">src/ksp/ksp/examples/tutorials/ex15f.F.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex54f.F.html">src/ksp/ksp/examples/tutorials/ex54f.F.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex8.c.html">src/ts/examples/tutorials/ex8.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex16.c.html">src/ts/examples/tutorials/ex16.c.html</A><BR>
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