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<title>SuperLU: SRC/dpanel_bmod.c File Reference</title>
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Main Page
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Data Structures
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Files
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SRC/dpanel_bmod.c File ReferencePerforms numeric block updates. More...
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#include <stdio.h>
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#include <stdlib.h>
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#include "slu_ddefs.h"
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Functions
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void dlsolve (int, int, double *, double *)
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Solves a dense UNIT lower triangular system.
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void dmatvec (int, int, int, double *, double *, double *)
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Performs a dense matrix-vector multiply: Mxvec = Mxvec + M * vec.
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void dcheck_tempv ()
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void dpanel_bmod (const int m, const int w, const int jcol, const int nseg, double *dense, double *tempv, int *segrep, int *repfnz, GlobalLU_t *Glu, SuperLUStat_t *stat)
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Detailed Description
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-- SuperLU routine (version 3.0) --
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Univ. of California Berkeley, Xerox Palo Alto Research Center,
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and Lawrence Berkeley National Lab.
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October 15, 2003
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Copyright (c) 1994 by Xerox Corporation. All rights reserved.
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THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY
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EXPRESSED OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
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Permission is hereby granted to use or copy this program for any
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purpose, provided the above notices are retained on all copies.
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Permission to modify the code and to distribute modified code is
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granted, provided the above notices are retained, and a notice that
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the code was modified is included with the above copyright notice.
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Function Documentation
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void dcheck_tempv
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(
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)
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void dlsolve
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(
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int
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ldm,
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int
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ncol,
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double *
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M,
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double *
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rhs
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)
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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.
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void dmatvec
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(
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int
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ldm,
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int
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nrow,
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int
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ncol,
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double *
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M,
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double *
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vec,
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double *
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Mxvec
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)
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The input matrix is M(1:nrow,1:ncol); The product is returned in Mxvec[].
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void dpanel_bmod
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(
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const int
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m,
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const int
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w,
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const int
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jcol,
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const int
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nseg,
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double *
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dense,
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double *
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tempv,
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int *
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segrep,
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int *
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repfnz,
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GlobalLU_t *
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Glu,
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SuperLUStat_t *
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stat
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)
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Purpose
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=======
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Performs numeric block updates (sup-panel) in topological order.
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It features: col-col, 2cols-col, 3cols-col, and sup-col updates.
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Special processing on the supernodal portion of L[*,j]
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Before entering this routine, the original nonzeros in the panel
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were already copied into the spa[m,w].
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Updated/Output parameters-
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dense[0:m-1,w]: L[*,j:j+w-1] and U[*,j:j+w-1] are returned
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collectively in the m-by-w vector dense[*].
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<address style="text-align: right;"><small>Generated on Mon Nov 22 10:23:47 2010 for SuperLU by </small></address>
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 1.5.5
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