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87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
/* $Id: lptran.c,v 1.2 1999/01/03 02:07:20 sybalsky Exp $ (C) Copyright Venue, All Rights Reserved
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*/
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static char *id = "$Id: lptran.c,v 1.2 1999/01/03 02:07:20 sybalsky Exp $ Copyright (C) Venue";
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/************************************************************************/
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/* */
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/* (C) Copyright 1989-95 Venue. All Rights Reserved. */
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/* Manufactured in the United States of America. */
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/* */
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/* The contents of this file are proprietary information */
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/* belonging to Venue, and are provided to you under license. */
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/* They may not be further distributed or disclosed to third */
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/* parties without the specific permission of Venue. */
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/* */
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/************************************************************************/
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#include "version.h"
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#include "lpdefs.h"
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#include "lpglobl.h"
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#ifdef alliant
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#pragma global safe(Eta_rownr, Eta_value)
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#pragma global assoc
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#endif
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#ifdef OS4
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ftran(start, end, pcol) int start, end;
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double *pcol;
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#else
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void ftran(int start, int end, double *pcol)
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#endif
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{
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int i, j;
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int k, r;
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double theta;
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#ifdef alliant
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#pragma safe(pcol, Endetacol)
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#pragma routine permutation(Eta_rownr)
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#endif
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if (Verbose) printf("ftran\n");
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for (i = start; i <= end; i++) {
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k = Endetacol[i] - 1;
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r = Eta_rownr[k];
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theta = pcol[r];
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if (theta != 0)
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for (j = Endetacol[i - 1]; j < k; j++)
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pcol[Eta_rownr[j]] += theta * Eta_value[j]; /* cpu expensive line */
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pcol[r] *= Eta_value[k];
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}
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#ifdef alliant
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#pragma loop novector
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#endif
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for (i = 0; i <= Rows; i++)
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if (abs(pcol[i]) < EPSEL) pcol[i] = 0;
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} /* ftran */
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#ifdef OS4
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btran(numc, row) int numc;
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double *row;
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#else
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void btran(int numc, double *row)
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#endif
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{
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int i, j, k;
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double f;
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#ifdef alliant
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#pragma safe(row, Endetacol)
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#endif
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if (Verbose) printf("btran\n");
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for (i = numc; i >= 1; i--) {
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f = 0;
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k = Endetacol[i];
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for (j = Endetacol[i - 1]; j < k; j++) f += row[Eta_rownr[j]] * Eta_value[j];
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if (abs(f) < EPSEL)
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row[Eta_rownr[k - 1]] = 0;
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else
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row[Eta_rownr[k - 1]] = f;
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}
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} /* btran */
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