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<H3><A NAME="SECTION04465300000000000000">LWORK <IMG WIDTH=11 HEIGHT=24 ALIGN=MIDDLE ALT="tex2html_wrap_inline14966" SRC="img308.gif"> WORK(1)</A></H3>
             <A NAME="3500">&#160;</A>
<P>
In some ScaLAPACK eigenvalue routines,
such as the symmetric eigenproblems
(PxSYEV and PxSYEVX/PxHEEVX) and the
generalized symmetric eigenproblem
(PxSYGVX/PxHEGVX), a larger value of
<I>LWORK</I> can guarantee the orthogonality
of the returned eigenvectors at the
risk of potentially degraded performance
of the algorithm.  The minimum amount
of workspace required is returned in
the first element of the work array,
but a larger amount of workspace can
allow for additional orthogonalization
if desired by the user. Refer to 
section&nbsp;<A HREF="node126.html#subsecperfsyevx">5.3.6</A> and 
the leading comments of the source
code for complete details.
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<P><ADDRESS>
<I>Susan Blackford <BR>
Tue May 13 09:21:01 EDT 1997</I>
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