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<title>SuperLU: SRC/scolumn_bmod.c File Reference</title>
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<h1>SRC/scolumn_bmod.c File Reference</h1>performs numeric block updates <a href="#_details">More...</a>
<p>
<code>#include <stdio.h></code><br>
<code>#include <stdlib.h></code><br>
<code>#include "<a class="el" href="slu__sdefs_8h-source.html">slu_sdefs.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="scolumn__bmod_8c.html#25ea48f4f948c68a423f5bd3929e3c1f">susolve</a> (int, int, float *, float *)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Solves a dense upper triangular system. <a href="#25ea48f4f948c68a423f5bd3929e3c1f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="scolumn__bmod_8c.html#a8bbeb2abbd5a10ac13fa9b48504691c">slsolve</a> (int, int, float *, float *)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Solves a dense UNIT lower triangular system. <a href="#a8bbeb2abbd5a10ac13fa9b48504691c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="scolumn__bmod_8c.html#b452e957171a4d0d9cfe6abb3d8a950c">smatvec</a> (int, int, int, float *, float *, float *)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Performs a dense matrix-vector multiply: Mxvec = Mxvec + M * vec. <a href="#b452e957171a4d0d9cfe6abb3d8a950c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="scolumn__bmod_8c.html#c89043410fd16fe2b8d3b2c902fec9f7">scolumn_bmod</a> (const int jcol, const int nseg, float *dense, float *tempv, int *segrep, int *repfnz, int fpanelc, <a class="el" href="structGlobalLU__t.html">GlobalLU_t</a> *Glu, <a class="el" href="structSuperLUStat__t.html">SuperLUStat_t</a> *stat)</td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
<pre>
-- SuperLU routine (version 3.0) --
Univ. of California Berkeley, Xerox Palo Alto Research Center,
and Lawrence Berkeley National Lab.
October 15, 2003</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="c89043410fd16fe2b8d3b2c902fec9f7"></a><!-- doxytag: member="scolumn_bmod.c::scolumn_bmod" ref="c89043410fd16fe2b8d3b2c902fec9f7" args="(const int jcol, const int nseg, float *dense, float *tempv, int *segrep, int *repfnz, int fpanelc, GlobalLU_t *Glu, SuperLUStat_t *stat)" -->
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<div class="memproto">
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<td class="memname">int scolumn_bmod </td>
<td>(</td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>jcol</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>nseg</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>dense</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>tempv</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"> <em>segrep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int * </td>
<td class="paramname"> <em>repfnz</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>fpanelc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structGlobalLU__t.html">GlobalLU_t</a> * </td>
<td class="paramname"> <em>Glu</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structSuperLUStat__t.html">SuperLUStat_t</a> * </td>
<td class="paramname"> <em>stat</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
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<div class="memdoc">
<p>
<pre>
Purpose:
========
Performs numeric block updates (sup-col) in topological order.
It features: col-col, 2cols-col, 3cols-col, and sup-col updates.
Special processing on the supernodal portion of L[*,j]
Return value: 0 - successful return
> 0 - number of bytes allocated when run out of space
</pre>
</div>
</div><p>
<a class="anchor" name="a8bbeb2abbd5a10ac13fa9b48504691c"></a><!-- doxytag: member="scolumn_bmod.c::slsolve" ref="a8bbeb2abbd5a10ac13fa9b48504691c" args="(int, int, float *, float *)" -->
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<td class="memname">void slsolve </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>ldm</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>ncol</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>M</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>rhs</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
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<div class="memdoc">
<p>
The unit lower triangular matrix is stored in a 2D array M(1:nrow,1:ncol). The solution will be returned in the rhs vector.
</div>
</div><p>
<a class="anchor" name="b452e957171a4d0d9cfe6abb3d8a950c"></a><!-- doxytag: member="scolumn_bmod.c::smatvec" ref="b452e957171a4d0d9cfe6abb3d8a950c" args="(int, int, int, float *, float *, float *)" -->
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<td class="memname">void smatvec </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>ldm</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>nrow</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>ncol</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>M</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>vec</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>Mxvec</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
The input matrix is M(1:nrow,1:ncol); The product is returned in Mxvec[].
</div>
</div><p>
<a class="anchor" name="25ea48f4f948c68a423f5bd3929e3c1f"></a><!-- doxytag: member="scolumn_bmod.c::susolve" ref="25ea48f4f948c68a423f5bd3929e3c1f" args="(int, int, float *, float *)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">void susolve </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>ldm</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>ncol</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>M</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"> <em>rhs</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
The upper triangular matrix is stored in a 2-dim array M(1:ldm,1:ncol). The solution will be returned in the rhs vector.
</div>
</div><p>
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