Mercurial > hg > octave-nkf
annotate liboctave/sparse-base-chol.h @ 11897:ee24b6c413f6 release-3-0-x
contourf.m: Correct order of patch object handles.
| author | Ben Abbott <bpabbott@mac.com> |
|---|---|
| date | Sat, 13 Dec 2008 17:30:38 +0100 |
| parents | 72830070a17b |
| children |
| rev | line source |
|---|---|
| 5506 | 1 /* |
| 2 | |
| 11740 | 3 Copyright (C) 2005, 2007, 2008 David Bateman |
| 7016 | 4 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Andy Adler |
| 5 | |
| 6 This file is part of Octave. | |
| 5506 | 7 |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 5506 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 5506 | 21 |
| 22 */ | |
| 23 | |
| 24 #if !defined (octave_sparse_base_chol_h) | |
| 25 #define octave_sparse_base_chol_h 1 | |
| 26 | |
| 27 #ifdef HAVE_CONFIG_H | |
| 28 #include <config.h> | |
| 29 #endif | |
| 30 | |
| 31 #include "oct-sparse.h" | |
| 32 #include "dColVector.h" | |
| 33 | |
| 34 template <class chol_type, class chol_elt, class p_type> | |
| 35 class | |
| 36 sparse_base_chol | |
| 37 { | |
| 38 protected: | |
| 5512 | 39 #ifdef HAVE_CHOLMOD |
| 5506 | 40 class sparse_base_chol_rep |
| 41 { | |
| 42 public: | |
| 43 sparse_base_chol_rep (void) : count (1), Lsparse (NULL), | |
| 44 is_pd (false), minor_p (0) { } | |
| 5512 | 45 |
| 5506 | 46 sparse_base_chol_rep (const chol_type& a, |
| 47 const bool natural) : count (1) | |
| 48 { init (a, natural); } | |
| 49 | |
| 50 sparse_base_chol_rep (const chol_type& a, octave_idx_type& info, | |
| 51 const bool natural) : count (1) | |
| 52 { info = init (a, natural); } | |
| 53 | |
|
11716
017e13f0d056
Fix fall back from sparse cholesky factorization to LU when matrix detected as not being positive definite
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
54 ~sparse_base_chol_rep (void) |
|
017e13f0d056
Fix fall back from sparse cholesky factorization to LU when matrix detected as not being positive definite
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
55 { if (is_pd) CHOLMOD_NAME(free_sparse) (&Lsparse, &Common); } |
| 5506 | 56 |
| 57 cholmod_sparse * L (void) const { return Lsparse; } | |
| 5512 | 58 |
| 5506 | 59 octave_idx_type P (void) const |
| 60 { return (minor_p == static_cast<octave_idx_type>(Lsparse->ncol) ? | |
| 61 0 : minor_p + 1); } | |
| 62 | |
| 63 ColumnVector perm (void) const { return perms + 1; } | |
| 64 | |
| 65 p_type Q (void) const; | |
| 66 | |
| 67 bool is_positive_definite (void) const { return is_pd; } | |
| 68 | |
| 69 double rcond (void) const { return cond; } | |
| 70 | |
| 71 int count; | |
| 72 | |
| 73 private: | |
| 74 cholmod_sparse *Lsparse; | |
| 75 | |
| 76 cholmod_common Common; | |
| 5512 | 77 |
| 5506 | 78 bool is_pd; |
| 79 | |
| 80 octave_idx_type minor_p; | |
| 81 | |
| 82 ColumnVector perms; | |
| 83 | |
| 84 double cond; | |
| 85 | |
| 86 octave_idx_type init (const chol_type& a, bool natural = true); | |
| 87 | |
| 88 void drop_zeros (const cholmod_sparse* S); | |
| 89 | |
| 90 // No assignment | |
| 91 sparse_base_chol_rep& operator = (const sparse_base_chol_rep& a); | |
| 92 }; | |
| 5512 | 93 #else |
| 94 class sparse_base_chol_rep | |
| 95 { | |
| 96 public: | |
| 97 sparse_base_chol_rep (void) : count (1), is_pd (false), minor_p (0) { } | |
| 98 | |
| 99 sparse_base_chol_rep (const chol_type& a, | |
| 100 const bool natural) : count (1) | |
| 101 { init (a, natural); } | |
| 102 | |
| 103 sparse_base_chol_rep (const chol_type& a, octave_idx_type& info, | |
| 104 const bool natural) : count (1) | |
| 105 { info = init (a, natural); } | |
| 106 | |
| 107 ~sparse_base_chol_rep (void) { } | |
| 108 | |
| 109 octave_idx_type P (void) const { return 0; } | |
| 110 | |
| 111 ColumnVector perm (void) const { return perms + 1; } | |
| 112 | |
| 113 p_type Q (void) const; | |
| 114 | |
| 115 bool is_positive_definite (void) const { return is_pd; } | |
| 116 | |
| 117 double rcond (void) const { return cond; } | |
| 118 | |
| 119 int count; | |
| 120 | |
| 121 private: | |
| 122 bool is_pd; | |
| 123 | |
| 124 octave_idx_type minor_p; | |
| 125 | |
| 126 ColumnVector perms; | |
| 127 | |
| 128 double cond; | |
| 129 | |
| 130 octave_idx_type init (const chol_type& a, bool natural = true); | |
| 131 | |
| 132 // No assignment | |
| 133 sparse_base_chol_rep& operator = (const sparse_base_chol_rep& a); | |
| 134 }; | |
| 135 #endif | |
| 5506 | 136 |
| 137 private: | |
| 138 sparse_base_chol_rep *rep; | |
| 139 | |
| 140 public: | |
| 141 | |
| 142 sparse_base_chol (void) : rep (new typename | |
| 143 sparse_base_chol<chol_type, chol_elt, p_type>::sparse_base_chol_rep ()) { } | |
| 144 | |
| 145 sparse_base_chol (const chol_type& a, const bool n) : rep (new typename | |
| 146 sparse_base_chol<chol_type, chol_elt, p_type>:: | |
| 147 sparse_base_chol_rep (a, n)) { } | |
| 148 | |
| 149 sparse_base_chol (const chol_type& a, octave_idx_type& info, const bool n) : | |
| 150 rep (new typename sparse_base_chol<chol_type, chol_elt, p_type>:: | |
| 151 sparse_base_chol_rep (a, info, n)) { } | |
| 152 | |
| 153 sparse_base_chol (const sparse_base_chol<chol_type, chol_elt, p_type>& a) : | |
| 154 rep (a.rep) { rep->count++; } | |
| 155 | |
| 156 ~sparse_base_chol (void) | |
| 157 { | |
| 158 if (--rep->count <= 0) | |
| 159 delete rep; | |
| 160 } | |
| 161 | |
| 162 sparse_base_chol& operator = (const sparse_base_chol& a) | |
| 163 { | |
| 164 if (this != &a) | |
| 165 { | |
| 166 if (--rep->count <= 0) | |
| 167 delete rep; | |
| 168 | |
| 169 rep = a.rep; | |
| 170 rep->count++; | |
| 171 } | |
| 172 | |
| 173 return *this; | |
| 174 } | |
| 175 | |
| 176 chol_type L (void) const; | |
| 177 | |
| 178 chol_type R (void) const { return L().hermitian (); } | |
| 179 | |
| 180 octave_idx_type P (void) const { return rep->P(); } | |
| 181 | |
| 182 ColumnVector perm (void) const { return rep->perm(); } | |
| 183 | |
| 184 p_type Q (void) const { return rep->Q(); } | |
| 185 | |
| 186 bool is_positive_definite (void) const | |
| 187 { return rep->is_positive_definite(); } | |
| 188 | |
| 189 double rcond (void) const { return rep->rcond(); } | |
| 190 | |
| 191 chol_type inverse (void) const; | |
| 192 }; | |
| 193 | |
| 194 #endif | |
| 195 | |
| 196 /* | |
| 197 ;;; Local Variables: *** | |
| 198 ;;; mode: C++ *** | |
| 199 ;;; End: *** | |
| 200 */ |