slu__ddefs_8h.html

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<p>
<pre>
 Purpose
 =======
   "column_dfs" performs a symbolic factorization on column jcol, and
   decide the supernode boundary.</pre><p>
<pre>   This routine does not use numeric values, but only use the RHS 
   row indices to start the dfs.</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. The routine returns a list of such supernodal 
   representatives in topological order of the dfs that generates them.
   The location of the first nonzero in each such supernodal segment
   (supernodal entry location) is also returned.</pre><p>
<pre> Local parameters
 ================
   nseg: no of segments in current U[*,j]
   jsuper: jsuper=EMPTY if column j does not belong to the same
	supernode as j-1. Otherwise, jsuper=nsuper.</pre><p>
<pre>   marker2: A-row --&gt; A-row/col (0/1)
   repfnz: SuperA-col --&gt; PA-row
   parent: SuperA-col --&gt; SuperA-col
   xplore: SuperA-col --&gt; index to L-structure</pre><p>
<pre> Return value
 ============
     0  success;
   &gt; 0  number of bytes allocated when run out of space.
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<a class="anchor" name="fab4013ae32ca6413508cefa1e8143d5"></a><!-- doxytag: member="slu_ddefs.h::dCompRow_to_CompCol" ref="fab4013ae32ca6413508cefa1e8143d5" args="(int, int, int, double *, int *, int *, double **, int **, int **)" --><p>
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<a class="anchor" name="21c06d544ecb9028142abd70a583dd68"></a><!-- doxytag: member="slu_ddefs.h::dCopy_CompCol_Matrix" ref="21c06d544ecb9028142abd70a583dd68" args="(SuperMatrix *, SuperMatrix *)" --><p>
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          <td class="md" nowrap valign="top">void dCopy_CompCol_Matrix           </td>
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<a class="anchor" name="9bf038cd2c143a48a14a562ca1f67e27"></a><!-- doxytag: member="slu_ddefs.h::dCopy_Dense_Matrix" ref="9bf038cd2c143a48a14a562ca1f67e27" args="(int, int, double *, int, double *, int)" --><p>
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<a class="anchor" name="9dfcee23fab091d05a4301e25b3b4227"></a><!-- doxytag: member="slu_ddefs.h::dcopy_to_ucol" ref="9dfcee23fab091d05a4301e25b3b4227" args="(int, int, int *, int *, int *, double *, GlobalLU_t *)" --><p>
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