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<A NAME="MATESSL"><H1>MATESSL</H1></A>
<A HREF="../Mat/MATESSL.html#MATESSL">MATESSL</A> = "essl" - A matrix type providing direct solvers (LU) for sequential matrices via the external package ESSL. If ESSL is installed (see the manual for
instructions on how to declare the existence of external packages),
a matrix type can be constructed which invokes ESSL solvers.
After calling <A HREF="../Mat/MatCreate.html#MatCreate">MatCreate</A>(...,A), simply call <A HREF="../Mat/MatSetType.html#MatSetType">MatSetType</A>(A,<A HREF="../Mat/MATESSL.html#MATESSL">MATESSL</A>).
This matrix type is only supported for double precision real.
<P>
This matrix inherits from <A HREF="../Mat/MATSEQAIJ.html#MATSEQAIJ">MATSEQAIJ</A>. As a result, <A HREF="../Mat/MatSeqAIJSetPreallocation.html#MatSeqAIJSetPreallocation">MatSeqAIJSetPreallocation</A> is
supported for this matrix type. One can also call <A HREF="../Mat/MatConvert.html#MatConvert">MatConvert</A> for an inplace conversion to or from
the <A HREF="../Mat/MATSEQAIJ.html#MATSEQAIJ">MATSEQAIJ</A> type without data copy.
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<DT><B>-mat_type essl </B> -sets the matrix type to "essl" during a call to <A HREF="../Mat/MatSetFromOptions.html#MatSetFromOptions">MatSetFromOptions</A>()
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<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCLU.html#PCLU">PCLU</A>
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/aij/seq/essl/essl.c.html#MATESSL">src/mat/impls/aij/seq/essl/essl.c</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
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