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<H2><A NAME="SECTION00052000000000000000">
Optional third party libraries</A>
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<P>
We provide interfaces to the following third-party software libraries;
note that these are optional, but if you enable them some defaults
for multilevel preconditioners may change to reflect their presence.
<P>
<DL>
<DT><STRONG>UMFPACK</STRONG></DT>
<DD>[<A
HREF="node27.html#UMFPACK">9</A>]
A sparse direct factorization package available from
<BR> <code>http://www.cise.ufl.edu/research/sparse/umfpack/</code>;
provides serial factorization and triangular system solution for double
precision real and complex data. We have tested
versions 5.4.
</DD>
<DT><STRONG>SuperLU</STRONG></DT>
<DD>[<A
HREF="node27.html#SUPERLU">11</A>]
A sparse direct factorization package available from
<BR> <code>http://crd.lbl.gov/~xiaoye/SuperLU/</code>; provides serial
factorization and triangular system solution for single and double precision,
real and complex data. We have tested version 4.3 and 5.0.
</DD>
<DT><STRONG>SuperLU_Dist</STRONG></DT>
<DD>[<A
HREF="node27.html#SUPERLUDIST">21</A>]
A sparse direct factorization package available
from the same site as SuperLU; provides parallel factorization and
triangular system solution for double precision real and complex data.
We have tested version 3.3 and 4.2.
</DD>
<DT><STRONG>MUMPS</STRONG></DT>
<DD>[<A
HREF="node27.html#MUMPS">10</A>]
MUMPS (“MUltifrontal Massively Parallel Solver”) is a sparse, direct factorization
package available from
<BR> <code>http://mumps.enseeiht.fr/</code>.
It implements a direct method based on a multifrontal approach which performs
a Gaussian factorization.
We have tested versions 4.10.0 and version 5.0.1.
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