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   <div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="MATSOLVERSUPERLU_DIST"><H1>MATSOLVERSUPERLU_DIST</H1></A>
Parallel direct solver package for LU factorization Use ./configure --download-superlu_dist --download-parmetis --download-metis --download-ptscotch  to have PETSc installed with SuperLU_DIST
<P>
Use -pc_type lu -pc_factor_mat_solver_package superlu_dist to us this direct solver
<P>
Works with AIJ matrices
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_r &lt;n&gt; </B></TD><TD>- number of rows in processor partition
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_c &lt;n&gt; </B></TD><TD>- number of columns in processor partition
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_matinput &lt;0,1&gt; </B></TD><TD>- matrix input mode; 0=global, 1=distributed
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_equil </B></TD><TD>- equilibrate the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_rowperm &lt;LargeDiag,NATURAL&gt; </B></TD><TD>- row permutation
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_colperm &lt;MMD_AT_PLUS_A,MMD_ATA,NATURAL&gt; </B></TD><TD>- column permutation
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_replacetinypivot </B></TD><TD>- replace tiny pivots
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_fact &lt;SamePattern&gt; </B></TD><TD>- (choose one of) SamePattern SamePattern_SameRowPerm
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_iterrefine </B></TD><TD>- use iterative refinement
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_superlu_dist_statprint </B></TD><TD>- print factorization information
</TD></TR></TABLE>
<P>

<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
 <A HREF="../PC/PCLU.html#PCLU">PCLU</A>
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
 <A HREF="../PC/PCFactorSetMatSolverPackage.html#PCFactorSetMatSolverPackage">PCFactorSetMatSolverPackage</A>(), <A HREF="../Mat/MatSolverPackage.html#MatSolverPackage">MatSolverPackage</A>
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c.html#MATSOLVERSUPERLU_DIST">src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex52.c.html">src/ksp/ksp/examples/tutorials/ex52.c.html</A><BR>
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