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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="VecMTDotBegin"><H1>VecMTDotBegin</H1></A>
Starts a split phase transpose multiple dot product computation.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
PetscErrorCode VecMTDotBegin(Vec x,PetscInt nv,const Vec y[],PetscScalar result[])
</PRE>
<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>x </B></TD><TD>- the first vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nv </B></TD><TD>- number of vectors
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD>- array of vectors
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>result </B></TD><TD>- where the result will go (can be NULL)
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Each call to <A HREF="../Vec/VecMTDotBegin.html#VecMTDotBegin">VecMTDotBegin</A>() should be paired with a call to <A HREF="../Vec/VecMTDotEnd.html#VecMTDotEnd">VecMTDotEnd</A>().
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecMTDotEnd.html#VecMTDotEnd">VecMTDotEnd</A>(), <A HREF="../Vec/VecNormBegin.html#VecNormBegin">VecNormBegin</A>(), <A HREF="../Vec/VecNormEnd.html#VecNormEnd">VecNormEnd</A>(), <A HREF="../Vec/VecNorm.html#VecNorm">VecNorm</A>(), <A HREF="../Vec/VecDot.html#VecDot">VecDot</A>(), <A HREF="../Vec/VecMDot.html#VecMDot">VecMDot</A>(),
<BR><A HREF="../Vec/VecDotBegin.html#VecDotBegin">VecDotBegin</A>(), <A HREF="../Vec/VecDotEnd.html#VecDotEnd">VecDotEnd</A>(), <A HREF="../Vec/VecMDotBegin.html#VecMDotBegin">VecMDotBegin</A>(), <A HREF="../Vec/VecMDotEnd.html#VecMDotEnd">VecMDotEnd</A>(), <A HREF="../Vec/PetscCommSplitReductionBegin.html#PetscCommSplitReductionBegin">PetscCommSplitReductionBegin</A>()
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/vec/utils/comb.c.html#VecMTDotBegin">src/vec/vec/utils/comb.c</A>
<BR><A HREF="./index.html">Index of all Vec routines</A>
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