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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>SuperLU: SRC/cpanel_dfs.c File Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.6 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div><h1>SRC/cpanel_dfs.c File Reference</h1>Peforms a symbolic factorization on a panel of symbols. <a href="#_details">More...</a><p><code>#include "<a class="el" href="slu__cdefs_8h-source.html">slu_cdefs.h</a>"</code><br><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="cpanel__dfs_8c.html#052edfd06c5aeab7a37b5fa558a06602">cpanel_dfs</a> (const int m, const int w, const int jcol, <a class="el" href="structSuperMatrix.html">SuperMatrix</a> *A, int *perm_r, int *nseg, <a class="el" href="structcomplex.html">complex</a> *dense, int *panel_lsub, int *segrep, int *repfnz, int *xprune, int *marker, int *parent, int *xplore, <a class="el" href="structGlobalLU__t.html">GlobalLU_t</a> *Glu)</td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2><pre> -- SuperLU routine (version 2.0) -- Univ. of California Berkeley, Xerox Palo Alto Research Center, and Lawrence Berkeley National Lab. November 15, 1997</pre><p><pre> Copyright (c) 1994 by Xerox Corporation. All rights reserved.</pre><p><pre> THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED OR IMPLIED. ANY USE IS AT YOUR OWN RISK.</pre><p><pre> Permission is hereby granted to use or copy this program for any purpose, provided the above notices are retained on all copies. Permission to modify the code and to distribute modified code is granted, provided the above notices are retained, and a notice that the code was modified is included with the above copyright notice. </pre> <hr><h2>Function Documentation</h2><a class="anchor" name="052edfd06c5aeab7a37b5fa558a06602"></a><!-- doxytag: member="cpanel_dfs.c::cpanel_dfs" ref="052edfd06c5aeab7a37b5fa558a06602" args="(const int m, const int w, const int jcol, SuperMatrix *A, int *perm_r, int *nseg, complex *dense, int *panel_lsub, int *segrep, int *repfnz, int *xprune, int *marker, int *parent, int *xplore, GlobalLU_t *Glu)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void cpanel_dfs </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const int </td> <td class="mdname" nowrap> <em>m</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const int </td> <td class="mdname" nowrap> <em>w</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const int </td> <td class="mdname" nowrap> <em>jcol</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap><a class="el" href="structSuperMatrix.html">SuperMatrix</a> * </td> <td class="mdname" nowrap> <em>A</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>perm_r</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>nseg</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap><a class="el" href="structcomplex.html">complex</a> * </td> <td class="mdname" nowrap> <em>dense</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>panel_lsub</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>segrep</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>repfnz</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>xprune</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>marker</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>parent</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int * </td> <td class="mdname" nowrap> <em>xplore</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap><a class="el" href="structGlobalLU__t.html">GlobalLU_t</a> * </td> <td class="mdname" nowrap> <em>Glu</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p><pre> Purpose =======</pre><p><pre> Performs a symbolic factorization on a panel of columns [jcol, jcol+w).</pre><p><pre> A supernode representative is the last column of a supernode. The nonzeros in U[*,j] are segments that end at supernodal representatives.</pre><p><pre> The routine returns one list of the supernodal representatives in topological order of the dfs that generates them. This list is a superset of the topological order of each individual column within the panel. The location of the first nonzero in each supernodal segment (supernodal entry location) is also returned. Each column has a separate list for this purpose.</pre><p><pre> Two marker arrays are used for dfs: marker[i] == jj, if i was visited during dfs of current column jj; marker1[i] >= jcol, if i was visited by earlier columns in this panel;</pre><p><pre> marker: A-row --> A-row/col (0/1) repfnz: SuperA-col --> PA-row parent: SuperA-col --> SuperA-col xplore: SuperA-col --> index to L-structure </pre> </td> </tr></table><hr size="1"><address style="align: right;"><small>Generated on Fri Aug 1 22:40:40 2008 for SuperLU by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address></body></html>⌨️ 快捷键说明
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