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<A NAME="DASetMatPreallocateOnly"><H1>DASetMatPreallocateOnly</H1></A>
When <A HREF="../DA/DAGetMatrix.html#DAGetMatrix">DAGetMatrix</A>() is called the matrix will be properly preallocated but the nonzero structure and zero values will not be set.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscda.h"
#include "petscmat.h"
PetscErrorCode PETSCDM_DLLEXPORT DASetMatPreallocateOnly(DA da,PetscTruth only)
</PRE>
Collective on <A HREF="../DA/DA.html#DA">DA</A>
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<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
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<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>da </B></TD><TD>- the distributed array
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>only </B></TD><TD>- <A HREF="../Sys/PETSC_TRUE.html#PETSC_TRUE">PETSC_TRUE</A> if only want preallocation
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<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DA/DAGetMatrix.html#DAGetMatrix">DAGetMatrix</A>(), <A HREF="../DA/DASetGetMatrix.html#DASetGetMatrix">DASetGetMatrix</A>(), DASetBlockSize(), <A HREF="../DA/DASetBlockFills.html#DASetBlockFills">DASetBlockFills</A>()
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<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/da/utils/fdda.c.html#DASetMatPreallocateOnly">src/dm/da/utils/fdda.c</A>
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