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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021.
author John W. Eaton <jwe@octave.org>
date Wed, 10 Feb 2021 09:52:15 -0500
parents bd51beb6205e
children a6ab7069a87c
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <cinttypes>
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31 #include <sstream>
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32
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33 #include "DASSL.h"
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34 #include "dMatrix.h"
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35 #include "f77-fcn.h"
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36 #include "lo-error.h"
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37 #include "quit.h"
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38
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39 typedef F77_INT (*dassl_fcn_ptr) (const double&, const double*,
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40 const double*, double*, F77_INT&,
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41 double*, F77_INT*);
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42
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43 typedef F77_INT (*dassl_jac_ptr) (const double&, const double*,
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44 const double*, double*, const double&,
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45 double*, F77_INT*);
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46
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47 extern "C"
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48 {
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49 F77_RET_T
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50 F77_FUNC (ddassl, DDASSL) (dassl_fcn_ptr, const F77_INT&, F77_DBLE&,
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51 F77_DBLE*, F77_DBLE*, F77_DBLE&, const F77_INT*,
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52 const F77_DBLE*, const F77_DBLE*, F77_INT&,
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53 F77_DBLE*, const F77_INT&, F77_INT*,
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54 const F77_INT&, const F77_DBLE*, const F77_INT*,
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55 dassl_jac_ptr);
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56 }
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57
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58 static DAEFunc::DAERHSFunc user_fun;
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59 static DAEFunc::DAEJacFunc user_jac;
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60
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61 static F77_INT nn;
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62
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63 static F77_INT
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64 ddassl_f (const double& time, const double *state, const double *deriv,
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65 double *delta, F77_INT& ires, double *, F77_INT *)
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66 {
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67 // FIXME: would be nice to avoid copying the data.
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68
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69 ColumnVector tmp_deriv (nn);
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70 ColumnVector tmp_state (nn);
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71 ColumnVector tmp_delta (nn);
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72
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73 for (F77_INT i = 0; i < nn; i++)
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74 {
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75 tmp_deriv.elem (i) = deriv[i];
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76 tmp_state.elem (i) = state[i];
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77 }
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78
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79 octave_idx_type tmp_ires = ires;
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80
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81 tmp_delta = user_fun (tmp_state, tmp_deriv, time, tmp_ires);
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82
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83 ires = octave::to_f77_int (tmp_ires);
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84
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85 if (ires >= 0)
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86 {
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87 if (tmp_delta.isempty ())
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88 ires = -2;
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89 else
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90 {
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91 for (F77_INT i = 0; i < nn; i++)
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92 delta[i] = tmp_delta.elem (i);
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93 }
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94 }
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95
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96 return 0;
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97 }
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98
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99 static F77_INT
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100 ddassl_j (const double& time, const double *state, const double *deriv,
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101 double *pd, const double& cj, double *, F77_INT *)
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102 {
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103 // FIXME: would be nice to avoid copying the data.
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104
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105 ColumnVector tmp_state (nn);
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106 ColumnVector tmp_deriv (nn);
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107
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108 for (F77_INT i = 0; i < nn; i++)
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109 {
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110 tmp_deriv.elem (i) = deriv[i];
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111 tmp_state.elem (i) = state[i];
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112 }
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113
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114 Matrix tmp_pd = user_jac (tmp_state, tmp_deriv, time, cj);
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115
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116 for (F77_INT j = 0; j < nn; j++)
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117 for (F77_INT i = 0; i < nn; i++)
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118 pd[nn * j + i] = tmp_pd.elem (i, j);
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119
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120 return 0;
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121 }
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122
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123 ColumnVector
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124 DASSL::do_integrate (double tout)
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125 {
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126 ColumnVector retval;
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127
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128 if (! initialized || restart || DAEFunc::reset || DASSL_options::reset)
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129 {
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130 integration_error = false;
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131
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132 initialized = true;
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133
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134 info.resize (dim_vector (15, 1));
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135
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136 for (F77_INT i = 0; i < 15; i++)
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137 info(i) = 0;
1945
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parents: 1939
diff changeset
138
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139 F77_INT n = octave::to_f77_int (size ());
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140
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141 liw = 21 + n;
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142 lrw = 40 + 9*n + n*n;
1945
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parents: 1939
diff changeset
143
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144 nn = n;
1945
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145
11574
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diff changeset
146 iwork.resize (dim_vector (liw, 1));
a83bad07f7e3 attempt better backward compatibility for Array resize functions
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diff changeset
147 rwork.resize (dim_vector (lrw, 1));
256
e592734b002b [project @ 1993-12-08 23:36:33 by jwe]
jwe
parents: 238
diff changeset
148
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149 info(0) = 0;
3994
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parents: 3993
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150
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diff changeset
151 if (stop_time_set)
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152 {
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153 rwork(0) = stop_time;
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154 info(3) = 1;
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155 }
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156 else
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157 info(3) = 0;
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
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parents:
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158
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159 restart = false;
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
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160
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
jwe
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161 // DAEFunc
3
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162
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163 user_fun = DAEFunc::function ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
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164 user_jac = DAEFunc::jacobian_function ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
jwe
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165
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
jwe
parents: 4047
diff changeset
166 if (user_fun)
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167 {
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168 octave_idx_type ires = 0;
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169
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170 ColumnVector res = (*user_fun) (x, xdot, t, ires);
3993
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jwe
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171
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
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172 if (res.numel () != x.numel ())
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173 {
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174 (*current_liboctave_error_handler)
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175 ("dassl: inconsistent sizes for state and residual vectors");
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parents: 3520
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176
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177 integration_error = true;
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178 return retval;
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179 }
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180 }
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181 else
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182 {
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183 (*current_liboctave_error_handler)
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184 ("dassl: no user supplied RHS subroutine!");
2344
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jwe
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diff changeset
185
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186 integration_error = true;
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187 return retval;
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188 }
2344
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189
23450
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Rik <rik@octave.org>
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190 info(4) = (user_jac ? 1 : 0);
11586
12df7854fa7c strip trailing whitespace from source files
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parents: 11574
diff changeset
191
4049
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192 DAEFunc::reset = false;
3
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193
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194 // DASSL_options
3998
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diff changeset
195
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196 double hmax = maximum_step_size ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
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197 if (hmax >= 0.0)
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198 {
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199 rwork(1) = hmax;
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200 info(6) = 1;
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201 }
4049
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202 else
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203 info(6) = 0;
3998
f6df65db67f9 [project @ 2002-07-24 18:10:39 by jwe]
jwe
parents: 3997
diff changeset
204
4049
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diff changeset
205 double h0 = initial_step_size ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
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diff changeset
206 if (h0 >= 0.0)
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diff changeset
207 {
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diff changeset
208 rwork(2) = h0;
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209 info(7) = 1;
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210 }
4049
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diff changeset
211 else
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212 info(7) = 0;
3998
f6df65db67f9 [project @ 2002-07-24 18:10:39 by jwe]
jwe
parents: 3997
diff changeset
213
22988
cd33c785e80e put to_f77_int inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
214 F77_INT sl = octave::to_f77_int (step_limit ());
22960
0d1422cb7e93 use F77_INT instead of octave_idx_type for liboctave ODE and DAE classes
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
215
0d1422cb7e93 use F77_INT instead of octave_idx_type for liboctave ODE and DAE classes
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diff changeset
216 if (sl >= 0)
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217 {
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218 info(11) = 1;
22960
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diff changeset
219 iwork(20) = sl;
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220 }
4429
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diff changeset
221 else
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222 info(11) = 0;
4429
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diff changeset
223
22988
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John W. Eaton <jwe@octave.org>
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diff changeset
224 F77_INT maxord = octave::to_f77_int (maximum_order ());
4049
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diff changeset
225 if (maxord >= 0)
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226 {
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diff changeset
227 if (maxord > 0 && maxord < 6)
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diff changeset
228 {
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diff changeset
229 info(8) = 1;
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230 iwork(2) = maxord;
07ebe522dac2 untabify liboctave C++ sources
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231 }
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
232 else
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diff changeset
233 {
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diff changeset
234 (*current_liboctave_error_handler)
11502
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diff changeset
235 ("dassl: invalid value for maximum order: %d", maxord);
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diff changeset
236 integration_error = true;
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
237 return retval;
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
238 }
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diff changeset
239 }
4047
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diff changeset
240
22988
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John W. Eaton <jwe@octave.org>
parents: 22960
diff changeset
241 F77_INT enc = octave::to_f77_int (enforce_nonnegativity_constraints ());
23450
855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)".
Rik <rik@octave.org>
parents: 23443
diff changeset
242 info(9) = (enc ? 1 : 0);
4049
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diff changeset
243
22988
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John W. Eaton <jwe@octave.org>
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diff changeset
244 F77_INT ccic = octave::to_f77_int (compute_consistent_initial_condition ());
23450
855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)".
Rik <rik@octave.org>
parents: 23443
diff changeset
245 info(10) = (ccic ? 1 : 0);
4049
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diff changeset
246
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
jwe
parents: 4047
diff changeset
247 abs_tol = absolute_tolerance ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
jwe
parents: 4047
diff changeset
248 rel_tol = relative_tolerance ();
289
c23f50e61c58 [project @ 1994-01-13 06:25:58 by jwe]
jwe
parents: 256
diff changeset
249
22988
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John W. Eaton <jwe@octave.org>
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diff changeset
250 F77_INT abs_tol_len = octave::to_f77_int (abs_tol.numel ());
cd33c785e80e put to_f77_int inside octave namespace
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diff changeset
251 F77_INT rel_tol_len = octave::to_f77_int (rel_tol.numel ());
4049
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diff changeset
252
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
jwe
parents: 4047
diff changeset
253 if (abs_tol_len == 1 && rel_tol_len == 1)
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diff changeset
254 {
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
255 info(1) = 0;
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
256 }
4049
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jwe
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diff changeset
257 else if (abs_tol_len == n && rel_tol_len == n)
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diff changeset
258 {
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diff changeset
259 info(1) = 1;
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
260 }
4047
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parents: 4043
diff changeset
261 else
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262 {
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diff changeset
263 (*current_liboctave_error_handler)
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diff changeset
264 ("dassl: inconsistent sizes for tolerance arrays");
4049
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diff changeset
265
10314
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diff changeset
266 integration_error = true;
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267 return retval;
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diff changeset
268 }
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diff changeset
269
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe]
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diff changeset
270 DASSL_options::reset = false;
289
c23f50e61c58 [project @ 1994-01-13 06:25:58 by jwe]
jwe
parents: 256
diff changeset
271 }
4047
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diff changeset
272
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diff changeset
273 double *px = x.fortran_vec ();
4638800cd660 delete data pointer members from liboctave ODE/DAE classes; make destuctors virtual in ODE/DAE base classes
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diff changeset
274 double *pxdot = xdot.fortran_vec ();
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diff changeset
275
22960
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diff changeset
276 F77_INT *pinfo = info.fortran_vec ();
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277
4638800cd660 delete data pointer members from liboctave ODE/DAE classes; make destuctors virtual in ODE/DAE base classes
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diff changeset
278 double *prel_tol = rel_tol.fortran_vec ();
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diff changeset
279 double *pabs_tol = abs_tol.fortran_vec ();
4638800cd660 delete data pointer members from liboctave ODE/DAE classes; make destuctors virtual in ODE/DAE base classes
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280
4638800cd660 delete data pointer members from liboctave ODE/DAE classes; make destuctors virtual in ODE/DAE base classes
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281 double *prwork = rwork.fortran_vec ();
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282 F77_INT *piwork = iwork.fortran_vec ();
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283
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284 double *dummy = nullptr;
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285 F77_INT *idummy = nullptr;
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286
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287 F77_INT tmp_istate = octave::to_f77_int (istate);
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288
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289 F77_XFCN (ddassl, DDASSL, (ddassl_f, nn, t, px, pxdot, tout, pinfo,
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diff changeset
290 prel_tol, pabs_tol, tmp_istate, prwork, lrw,
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diff changeset
291 piwork, liw, dummy, idummy, ddassl_j));
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292
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diff changeset
293 istate = tmp_istate;
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294
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295 switch (istate)
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296 {
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diff changeset
297 case 1: // A step was successfully taken in intermediate-output
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298 // mode. The code has not yet reached TOUT.
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299 case 2: // The integration to TSTOP was successfully completed
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300 // (T=TSTOP) by stepping exactly to TSTOP.
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301 case 3: // The integration to TOUT was successfully completed
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302 // (T=TOUT) by stepping past TOUT. Y(*) is obtained by
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303 // interpolation. YPRIME(*) is obtained by interpolation.
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304 retval = x;
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305 t = tout;
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306 break;
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307
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308 case -1: // A large amount of work has been expended. (~500 steps).
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309 case -2: // The error tolerances are too stringent.
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310 case -3: // The local error test cannot be satisfied because you
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311 // specified a zero component in ATOL and the
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312 // corresponding computed solution component is zero.
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313 // Thus, a pure relative error test is impossible for
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314 // this component.
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315 case -6: // DDASSL had repeated error test failures on the last
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316 // attempted step.
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317 case -7: // The corrector could not converge.
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318 case -8: // The matrix of partial derivatives is singular.
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319 case -9: // The corrector could not converge. There were repeated
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320 // error test failures in this step.
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321 case -10: // The corrector could not converge because IRES was
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322 // equal to minus one.
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323 case -11: // IRES equal to -2 was encountered and control is being
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324 // returned to the calling program.
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diff changeset
325 case -12: // DDASSL failed to compute the initial YPRIME.
29980c6b8604 don't check f77_exception_encountered
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diff changeset
326 case -33: // The code has encountered trouble from which it cannot
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parents: 21724
diff changeset
327 // recover. A message is printed explaining the trouble
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328 // and control is returned to the calling program. For
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329 // example, this occurs when invalid input is detected.
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diff changeset
330 integration_error = true;
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331 break;
3996
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332
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diff changeset
333 default:
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diff changeset
334 integration_error = true;
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diff changeset
335 (*current_liboctave_error_handler)
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parents: 26376
diff changeset
336 ("unrecognized value of istate (= %" OCTAVE_IDX_TYPE_FORMAT ") "
0e77df67b522 Add static compile-time checking of printf functions in liboctave.
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parents: 26376
diff changeset
337 "returned from ddassl", istate);
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338 break;
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339 }
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340
1945
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diff changeset
341 return retval;
3
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342 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
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343
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344 Matrix
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345 DASSL::do_integrate (const ColumnVector& tout)
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346 {
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347 Matrix dummy;
0574a1f3a273 [project @ 1996-02-03 11:44:02 by jwe]
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348 return integrate (tout, dummy);
0574a1f3a273 [project @ 1996-02-03 11:44:02 by jwe]
jwe
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349 }
0574a1f3a273 [project @ 1996-02-03 11:44:02 by jwe]
jwe
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diff changeset
350
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diff changeset
351 Matrix
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352 DASSL::integrate (const ColumnVector& tout, Matrix& xdot_out)
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353 {
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354 Matrix retval;
4049
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355
20229
5dfaaaae784f Deprecate Array::capacity() and Sparse::capacity() for numel() and nzmax().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
356 octave_idx_type n_out = tout.numel ();
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diff changeset
357 F77_INT n = octave::to_f77_int (size ());
3
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358
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
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359 if (n_out > 0 && n > 0)
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
360 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
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diff changeset
361 retval.resize (n_out, n);
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
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362 xdot_out.resize (n_out, n);
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jwe
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363
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0d1422cb7e93 use F77_INT instead of octave_idx_type for liboctave ODE and DAE classes
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parents: 22755
diff changeset
364 for (F77_INT i = 0; i < n; i++)
10314
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diff changeset
365 {
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diff changeset
366 retval.elem (0, i) = x.elem (i);
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diff changeset
367 xdot_out.elem (0, i) = xdot.elem (i);
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diff changeset
368 }
3
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369
5275
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parents: 5105
diff changeset
370 for (octave_idx_type j = 1; j < n_out; j++)
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diff changeset
371 {
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diff changeset
372 ColumnVector x_next = do_integrate (tout.elem (j));
256
e592734b002b [project @ 1993-12-08 23:36:33 by jwe]
jwe
parents: 238
diff changeset
373
10314
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diff changeset
374 if (integration_error)
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diff changeset
375 return retval;
256
e592734b002b [project @ 1993-12-08 23:36:33 by jwe]
jwe
parents: 238
diff changeset
376
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0d1422cb7e93 use F77_INT instead of octave_idx_type for liboctave ODE and DAE classes
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diff changeset
377 for (F77_INT i = 0; i < n; i++)
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diff changeset
378 {
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diff changeset
379 retval.elem (j, i) = x_next.elem (i);
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diff changeset
380 xdot_out.elem (j, i) = xdot.elem (i);
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diff changeset
381 }
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diff changeset
382 }
3
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383 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
384
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
385 return retval;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
386 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
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diff changeset
387
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
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diff changeset
388 Matrix
3519
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parents: 3507
diff changeset
389 DASSL::do_integrate (const ColumnVector& tout, const ColumnVector& tcrit)
957d7d6ab0e0 [project @ 2000-02-02 06:00:09 by jwe]
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diff changeset
390 {
957d7d6ab0e0 [project @ 2000-02-02 06:00:09 by jwe]
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diff changeset
391 Matrix dummy;
957d7d6ab0e0 [project @ 2000-02-02 06:00:09 by jwe]
jwe
parents: 3507
diff changeset
392 return integrate (tout, dummy, tcrit);
957d7d6ab0e0 [project @ 2000-02-02 06:00:09 by jwe]
jwe
parents: 3507
diff changeset
393 }
957d7d6ab0e0 [project @ 2000-02-02 06:00:09 by jwe]
jwe
parents: 3507
diff changeset
394
957d7d6ab0e0 [project @ 2000-02-02 06:00:09 by jwe]
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diff changeset
395 Matrix
1842
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diff changeset
396 DASSL::integrate (const ColumnVector& tout, Matrix& xdot_out,
11586
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diff changeset
397 const ColumnVector& tcrit)
3
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398 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
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diff changeset
399 Matrix retval;
4049
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jwe
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diff changeset
400
20229
5dfaaaae784f Deprecate Array::capacity() and Sparse::capacity() for numel() and nzmax().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
401 octave_idx_type n_out = tout.numel ();
22988
cd33c785e80e put to_f77_int inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22960
diff changeset
402 F77_INT n = octave::to_f77_int (size ());
3
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parents:
diff changeset
403
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
404 if (n_out > 0 && n > 0)
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
405 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
406 retval.resize (n_out, n);
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
407 xdot_out.resize (n_out, n);
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
408
22960
0d1422cb7e93 use F77_INT instead of octave_idx_type for liboctave ODE and DAE classes
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
409 for (F77_INT i = 0; i < n; i++)
10314
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diff changeset
410 {
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
411 retval.elem (0, i) = x.elem (i);
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diff changeset
412 xdot_out.elem (0, i) = xdot.elem (i);
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
413 }
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
414
20229
5dfaaaae784f Deprecate Array::capacity() and Sparse::capacity() for numel() and nzmax().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
415 octave_idx_type n_crit = tcrit.numel ();
3
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jwe
parents:
diff changeset
416
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
417 if (n_crit > 0)
10314
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diff changeset
418 {
07ebe522dac2 untabify liboctave C++ sources
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diff changeset
419 octave_idx_type i_crit = 0;
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diff changeset
420 octave_idx_type i_out = 1;
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John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
421 double next_crit = tcrit.elem (0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
422 double next_out;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
423 while (i_out < n_out)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
424 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
425 bool do_restart = false;
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
426
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
427 next_out = tout.elem (i_out);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
428 if (i_crit < n_crit)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
429 next_crit = tcrit.elem (i_crit);
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
430
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
431 bool save_output;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
432 double t_out;
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
433
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
434 if (next_crit == next_out)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
435 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
436 set_stop_time (next_crit);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
437 t_out = next_out;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
438 save_output = true;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
439 i_out++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
440 i_crit++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
441 do_restart = true;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
442 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
443 else if (next_crit < next_out)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
444 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
445 if (i_crit < n_crit)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
446 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
447 set_stop_time (next_crit);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
448 t_out = next_crit;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
449 save_output = false;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
450 i_crit++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
451 do_restart = true;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
452 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
453 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
454 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
455 clear_stop_time ();
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
456 t_out = next_out;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
457 save_output = true;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
458 i_out++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
459 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
460 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
461 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
462 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
463 set_stop_time (next_crit);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
464 t_out = next_out;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
465 save_output = true;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
466 i_out++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
467 }
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
468
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
469 ColumnVector x_next = do_integrate (t_out);
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
470
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
471 if (integration_error)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
472 return retval;
256
e592734b002b [project @ 1993-12-08 23:36:33 by jwe]
jwe
parents: 238
diff changeset
473
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
474 if (save_output)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
475 {
22960
0d1422cb7e93 use F77_INT instead of octave_idx_type for liboctave ODE and DAE classes
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
476 for (F77_INT i = 0; i < n; i++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
477 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
478 retval.elem (i_out-1, i) = x_next.elem (i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
479 xdot_out.elem (i_out-1, i) = xdot.elem (i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
480 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
481 }
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
482
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
483 if (do_restart)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
484 force_restart ();
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
485 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
486 }
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
487 else
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
488 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
489 retval = integrate (tout, xdot_out);
256
e592734b002b [project @ 1993-12-08 23:36:33 by jwe]
jwe
parents: 238
diff changeset
490
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
491 if (integration_error)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
492 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
493 }
3
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
494 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
495
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
496 return retval;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe]
jwe
parents:
diff changeset
497 }
289
c23f50e61c58 [project @ 1994-01-13 06:25:58 by jwe]
jwe
parents: 256
diff changeset
498
3995
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
499 std::string
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
500 DASSL::error_message (void) const
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
501 {
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
502 std::string retval;
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
503
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5307
diff changeset
504 std::ostringstream buf;
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5307
diff changeset
505 buf << t;
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5307
diff changeset
506 std::string t_curr = buf.str ();
4043
6fae69a1796e [project @ 2002-08-15 03:36:27 by jwe]
jwe
parents: 3998
diff changeset
507
3997
d4091aff6468 [project @ 2002-07-17 18:00:06 by jwe]
jwe
parents: 3996
diff changeset
508 switch (istate)
3995
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
509 {
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
510 case 1:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
511 retval = "a step was successfully taken in intermediate-output mode.";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
512 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
513
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
514 case 2:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
515 retval = "integration completed by stepping exactly to TOUT";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
516 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
517
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
518 case 3:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
519 retval = "integration to tout completed by stepping past TOUT";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
520 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
521
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
522 case -1:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
523 retval = "a large amount of work has been expended (t =" + t_curr + ')';
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
524 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
525
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
526 case -2:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
527 retval = "the error tolerances are too stringent";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
528 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
529
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
530 case -3:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
531 retval = "error weight became zero during problem. (t = " + t_curr +
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
532 "; solution component i vanished, and atol or atol(i) == 0)";
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
533 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
534
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
535 case -6:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
536 retval = "repeated error test failures on the last attempted step (t = "
23807
336f89b6208b Use character literals 'c' rather than string literals "c" when possible.
Rik <rik@octave.org>
parents: 23577
diff changeset
537 + t_curr + ')';
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
538 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
539
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
540 case -7:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
541 retval = "the corrector could not converge (t = " + t_curr + ')';
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
542 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
543
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
544 case -8:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
545 retval = "the matrix of partial derivatives is singular (t = " + t_curr +
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
546 ')';
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
547 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
548
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
549 case -9:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
550 retval = "the corrector could not converge (t = " + t_curr +
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
551 "; repeated test failures)";
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
552 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
553
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
554 case -10:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
555 retval = "corrector could not converge because IRES was -1 (t = "
23807
336f89b6208b Use character literals 'c' rather than string literals "c" when possible.
Rik <rik@octave.org>
parents: 23577
diff changeset
556 + t_curr + ')';
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
557 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
558
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
559 case -11:
23829
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
560 retval = "return requested in user-supplied function (t = " + t_curr +
01899bdd2a3a Eliminate unnecessary std::string ("...") constructor calls when "..." suffices.
Rik <rik@octave.org>
parents: 23807
diff changeset
561 ')';
3996
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
562 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
563
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
564 case -12:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
565 retval = "failed to compute consistent initial conditions";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
566 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
567
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
568 case -33:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
569 retval = "unrecoverable error (see printed message)";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
570 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe]
jwe
parents: 3995
diff changeset
571
3995
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
572 default:
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
573 retval = "unknown error state";
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
574 break;
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
575 }
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
576
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
577 return retval;
ee0304212be0 [project @ 2002-07-17 04:32:42 by jwe]
jwe
parents: 3994
diff changeset
578 }