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view liboctave/numeric/DASSL.cc @ 22402:4caa7b28d183
maint: Style check C++ code in liboctave/
* Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc, Array-fC.cc,
Array-i.cc, Array-idx-vec.cc, Array-s.cc, Array-str.cc, Array-util.cc,
Array-util.h, Array-voidp.cc, Array.cc, Array.h, CColVector.cc, CColVector.h,
CDiagMatrix.cc, CDiagMatrix.h, CMatrix.cc, CMatrix.h, CNDArray.cc, CNDArray.h,
CRowVector.cc, CRowVector.h, CSparse.cc, CSparse.h, DiagArray2.cc,
DiagArray2.h, MArray-C.cc, MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc,
MArray-s.cc, MArray.cc, MArray.h, MDiagArray2.cc, MDiagArray2.h, MSparse-C.cc,
MSparse-d.cc, MSparse.cc, MSparse.h, Matrix.h, MatrixType.cc, MatrixType.h,
PermMatrix.cc, PermMatrix.h, Range.cc, Range.h, Sparse-C.cc, Sparse-b.cc,
Sparse-d.cc, Sparse.cc, Sparse.h, boolMatrix.cc, boolMatrix.h, boolNDArray.cc,
boolNDArray.h, boolSparse.cc, boolSparse.h, chMatrix.cc, chMatrix.h,
chNDArray.cc, chNDArray.h, dColVector.cc, dColVector.h, dDiagMatrix.cc,
dDiagMatrix.h, dMatrix.cc, dMatrix.h, dNDArray.cc, dNDArray.h, dRowVector.cc,
dRowVector.h, dSparse.cc, dSparse.h, dim-vector.cc, dim-vector.h,
fCColVector.cc, fCColVector.h, fCDiagMatrix.cc, fCDiagMatrix.h, fCMatrix.cc,
fCMatrix.h, fCNDArray.cc, fCNDArray.h, fCRowVector.cc, fCRowVector.h,
fColVector.cc, fColVector.h, fDiagMatrix.cc, fDiagMatrix.h, fMatrix.cc,
fMatrix.h, fNDArray.cc, fNDArray.h, fRowVector.cc, fRowVector.h, idx-vector.cc,
idx-vector.h, int16NDArray.cc, int16NDArray.h, int32NDArray.cc, int32NDArray.h,
int64NDArray.cc, int64NDArray.h, int8NDArray.cc, int8NDArray.h, intNDArray.cc,
intNDArray.h, uint16NDArray.cc, uint16NDArray.h, uint32NDArray.cc,
uint32NDArray.h, uint64NDArray.h, uint8NDArray.h, blaswrap.c, cquit.c,
f77-extern.cc, f77-fcn.c, f77-fcn.h, lo-error.c, lo-error.h, quit.cc, quit.h,
liboctave-build-info.h, liboctave-build-info.in.cc, CollocWt.cc, CollocWt.h,
DAE.h, DAEFunc.h, DAERT.h, DAERTFunc.h, DASPK.cc, DASPK.h, DASRT.cc, DASRT.h,
DASSL.cc, DASSL.h, DET.h, EIG.cc, EIG.h, LSODE.cc, LSODE.h, ODE.h, ODEFunc.h,
ODES.cc, ODES.h, ODESFunc.h, Quad.cc, Quad.h, aepbalance.cc, aepbalance.h,
base-dae.h, base-de.h, base-min.h, bsxfun-decl.h, bsxfun-defs.cc, bsxfun.h,
chol.cc, chol.h, eigs-base.cc, eigs-base.h, fEIG.cc, fEIG.h, gepbalance.cc,
gepbalance.h, gsvd.cc, gsvd.h, hess.cc, hess.h, lo-amos-proto.h,
lo-arpack-proto.h, lo-blas-proto.h, lo-fftpack-proto.h, lo-lapack-proto.h,
lo-mappers.cc, lo-mappers.h, lo-qrupdate-proto.h, lo-ranlib-proto.h,
lo-slatec-proto.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h, oct-convn.cc,
oct-fftw.cc, oct-fftw.h, oct-norm.h, oct-rand.cc, oct-rand.h, oct-spparms.cc,
oct-spparms.h, qr.cc, qr.h, qrp.cc, qrp.h, randgamma.cc, randgamma.h,
randmtzig.cc, randmtzig.h, randpoisson.cc, randpoisson.h, schur.cc, schur.h,
sparse-chol.cc, sparse-chol.h, sparse-dmsolve.cc, sparse-dmsolve.h,
sparse-lu.cc, sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h,
Sparse-diag-op-defs.h, Sparse-op-decls.h, Sparse-op-defs.h,
Sparse-perm-op-defs.h, mx-base.h, mx-defs.h, mx-ext.h, mx-inlines.cc,
mx-op-decl.h, mx-op-defs.h, child-list.cc, child-list.h, dir-ops.cc, dir-ops.h,
file-ops.cc, file-ops.h, file-stat.cc, file-stat.h, lo-sysdep.cc, lo-sysdep.h,
mach-info.cc, mach-info.h, oct-env.cc, oct-env.h, oct-group.cc, oct-group.h,
oct-passwd.cc, oct-passwd.h, oct-syscalls.cc, oct-time.cc, oct-time.h,
oct-uname.cc, oct-uname.h, action-container.h, base-list.h, byte-swap.h,
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oct-sort.cc, oct-sort.h, oct-sparse.h, oct-string.cc, oct-string.h,
pathsearch.cc, pathsearch.h, singleton-cleanup.cc, singleton-cleanup.h,
sparse-sort.cc, sparse-sort.h, sparse-util.cc, sparse-util.h, str-vec.cc,
str-vec.h, sun-utils.h, unwind-prot.cc, unwind-prot.h, url-transfer.cc,
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async-system-wrapper.c, async-system-wrapper.h, base64-wrappers.c,
base64-wrappers.h, canonicalize-file-name-wrapper.c,
canonicalize-file-name-wrapper.h, dirent-wrappers.c, dirent-wrappers.h,
fcntl-wrappers.c, fcntl-wrappers.h, filepos-wrappers.c, filepos-wrappers.h,
fpucw-wrappers.c, fpucw-wrappers.h, gen-tempname-wrapper.c,
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hash-wrappers.h, math-wrappers.c, math-wrappers.h, mkostemp-wrapper.c,
mkostemp-wrapper.h, nanosleep-wrapper.c, nanosleep-wrapper.h, nproc-wrapper.c,
nproc-wrapper.h, octave-popen2.c, octave-popen2.h, putenv-wrapper.c,
putenv-wrapper.h, set-program-name-wrapper.c, set-program-name-wrapper.h,
signal-wrappers.c, signal-wrappers.h, stat-wrappers.c, stat-wrappers.h,
strdup-wrapper.c, strdup-wrapper.h, strftime-wrapper.c, strftime-wrapper.h,
strmode-wrapper.c, strmode-wrapper.h, strptime-wrapper.c, strptime-wrapper.h,
time-wrappers.c, time-wrappers.h, tmpfile-wrapper.c, tmpfile-wrapper.h,
uname-wrapper.c, uname-wrapper.h, unistd-wrappers.c, unistd-wrappers.h,
unsetenv-wrapper.c, unsetenv-wrapper.h, vasprintf-wrapper.c,
vasprintf-wrapper.h, wait-for-input.c, wait-for-input.h, wait-wrappers.c,
wait-wrappers.h:
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author | Rik <rik@octave.org> |
---|---|
date | Mon, 29 Aug 2016 11:09:25 -0700 |
parents | bac0d6f07a3e |
children | 3a2b891d0b33 e9a0469dedd9 |
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/* Copyright (C) 1993-2016 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cfloat> #include <sstream> #include "DASSL.h" #include "f77-fcn.h" #include "lo-error.h" #include "lo-math.h" #include "quit.h" typedef octave_idx_type (*dassl_fcn_ptr) (const double&, const double*, const double*, double*, octave_idx_type&, double*, octave_idx_type*); typedef octave_idx_type (*dassl_jac_ptr) (const double&, const double*, const double*, double*, const double&, double*, octave_idx_type*); extern "C" { F77_RET_T F77_FUNC (ddassl, DDASSL) (dassl_fcn_ptr, const F77_INT&, F77_DBLE&, F77_DBLE*, F77_DBLE*, F77_DBLE&, const F77_INT*, const F77_DBLE*, const F77_DBLE*, F77_INT&, F77_DBLE*, const F77_INT&, F77_INT*, const F77_INT&, const F77_DBLE*, const F77_INT*, dassl_jac_ptr); } static DAEFunc::DAERHSFunc user_fun; static DAEFunc::DAEJacFunc user_jac; static octave_idx_type nn; static octave_idx_type ddassl_f (const double& time, const double *state, const double *deriv, double *delta, octave_idx_type& ires, double *, octave_idx_type *) { BEGIN_INTERRUPT_WITH_EXCEPTIONS; // FIXME: would be nice to avoid copying the data. ColumnVector tmp_deriv (nn); ColumnVector tmp_state (nn); ColumnVector tmp_delta (nn); for (octave_idx_type i = 0; i < nn; i++) { tmp_deriv.elem (i) = deriv[i]; tmp_state.elem (i) = state[i]; } tmp_delta = user_fun (tmp_state, tmp_deriv, time, ires); if (ires >= 0) { if (tmp_delta.is_empty ()) ires = -2; else { for (octave_idx_type i = 0; i < nn; i++) delta[i] = tmp_delta.elem (i); } } END_INTERRUPT_WITH_EXCEPTIONS; return 0; } static octave_idx_type ddassl_j (const double& time, const double *state, const double *deriv, double *pd, const double& cj, double *, octave_idx_type *) { BEGIN_INTERRUPT_WITH_EXCEPTIONS; // FIXME: would be nice to avoid copying the data. ColumnVector tmp_state (nn); ColumnVector tmp_deriv (nn); for (octave_idx_type i = 0; i < nn; i++) { tmp_deriv.elem (i) = deriv[i]; tmp_state.elem (i) = state[i]; } Matrix tmp_pd = user_jac (tmp_state, tmp_deriv, time, cj); for (octave_idx_type j = 0; j < nn; j++) for (octave_idx_type i = 0; i < nn; i++) pd[nn * j + i] = tmp_pd.elem (i, j); END_INTERRUPT_WITH_EXCEPTIONS; return 0; } ColumnVector DASSL::do_integrate (double tout) { ColumnVector retval; if (! initialized || restart || DAEFunc::reset || DASSL_options::reset) { integration_error = false; initialized = true; info.resize (dim_vector (15, 1)); for (octave_idx_type i = 0; i < 15; i++) info(i) = 0; octave_idx_type n = size (); liw = 21 + n; lrw = 40 + 9*n + n*n; nn = n; iwork.resize (dim_vector (liw, 1)); rwork.resize (dim_vector (lrw, 1)); info(0) = 0; if (stop_time_set) { rwork(0) = stop_time; info(3) = 1; } else info(3) = 0; restart = false; // DAEFunc user_fun = DAEFunc::function (); user_jac = DAEFunc::jacobian_function (); if (user_fun) { octave_idx_type ires = 0; ColumnVector res = (*user_fun) (x, xdot, t, ires); if (res.numel () != x.numel ()) { (*current_liboctave_error_handler) ("dassl: inconsistent sizes for state and residual vectors"); integration_error = true; return retval; } } else { (*current_liboctave_error_handler) ("dassl: no user supplied RHS subroutine!"); integration_error = true; return retval; } info(4) = user_jac ? 1 : 0; DAEFunc::reset = false; // DASSL_options double hmax = maximum_step_size (); if (hmax >= 0.0) { rwork(1) = hmax; info(6) = 1; } else info(6) = 0; double h0 = initial_step_size (); if (h0 >= 0.0) { rwork(2) = h0; info(7) = 1; } else info(7) = 0; if (step_limit () >= 0) { info(11) = 1; iwork(20) = step_limit (); } else info(11) = 0; octave_idx_type maxord = maximum_order (); if (maxord >= 0) { if (maxord > 0 && maxord < 6) { info(8) = 1; iwork(2) = maxord; } else { (*current_liboctave_error_handler) ("dassl: invalid value for maximum order: %d", maxord); integration_error = true; return retval; } } octave_idx_type enc = enforce_nonnegativity_constraints (); info(9) = enc ? 1 : 0; octave_idx_type ccic = compute_consistent_initial_condition (); info(10) = ccic ? 1 : 0; abs_tol = absolute_tolerance (); rel_tol = relative_tolerance (); octave_idx_type abs_tol_len = abs_tol.numel (); octave_idx_type rel_tol_len = rel_tol.numel (); if (abs_tol_len == 1 && rel_tol_len == 1) { info(1) = 0; } else if (abs_tol_len == n && rel_tol_len == n) { info(1) = 1; } else { (*current_liboctave_error_handler) ("dassl: inconsistent sizes for tolerance arrays"); integration_error = true; return retval; } DASSL_options::reset = false; } double *px = x.fortran_vec (); double *pxdot = xdot.fortran_vec (); octave_idx_type *pinfo = info.fortran_vec (); double *prel_tol = rel_tol.fortran_vec (); double *pabs_tol = abs_tol.fortran_vec (); double *prwork = rwork.fortran_vec (); octave_idx_type *piwork = iwork.fortran_vec (); double *dummy = 0; octave_idx_type *idummy = 0; F77_XFCN (ddassl, DDASSL, (ddassl_f, nn, t, px, pxdot, tout, pinfo, prel_tol, pabs_tol, istate, prwork, lrw, piwork, liw, dummy, idummy, ddassl_j)); switch (istate) { case 1: // A step was successfully taken in intermediate-output // mode. The code has not yet reached TOUT. case 2: // The integration to TSTOP was successfully completed // (T=TSTOP) by stepping exactly to TSTOP. case 3: // The integration to TOUT was successfully completed // (T=TOUT) by stepping past TOUT. Y(*) is obtained by // interpolation. YPRIME(*) is obtained by interpolation. retval = x; t = tout; break; case -1: // A large amount of work has been expended. (~500 steps). case -2: // The error tolerances are too stringent. case -3: // The local error test cannot be satisfied because you // specified a zero component in ATOL and the // corresponding computed solution component is zero. // Thus, a pure relative error test is impossible for // this component. case -6: // DDASSL had repeated error test failures on the last // attempted step. case -7: // The corrector could not converge. case -8: // The matrix of partial derivatives is singular. case -9: // The corrector could not converge. There were repeated // error test failures in this step. case -10: // The corrector could not converge because IRES was // equal to minus one. case -11: // IRES equal to -2 was encountered and control is being // returned to the calling program. case -12: // DDASSL failed to compute the initial YPRIME. case -33: // The code has encountered trouble from which it cannot // recover. A message is printed explaining the trouble // and control is returned to the calling program. For // example, this occurs when invalid input is detected. integration_error = true; break; default: integration_error = true; (*current_liboctave_error_handler) ("unrecognized value of istate (= %d) returned from ddassl", istate); break; } return retval; } Matrix DASSL::do_integrate (const ColumnVector& tout) { Matrix dummy; return integrate (tout, dummy); } Matrix DASSL::integrate (const ColumnVector& tout, Matrix& xdot_out) { Matrix retval; octave_idx_type n_out = tout.numel (); octave_idx_type n = size (); if (n_out > 0 && n > 0) { retval.resize (n_out, n); xdot_out.resize (n_out, n); for (octave_idx_type i = 0; i < n; i++) { retval.elem (0, i) = x.elem (i); xdot_out.elem (0, i) = xdot.elem (i); } for (octave_idx_type j = 1; j < n_out; j++) { ColumnVector x_next = do_integrate (tout.elem (j)); if (integration_error) return retval; for (octave_idx_type i = 0; i < n; i++) { retval.elem (j, i) = x_next.elem (i); xdot_out.elem (j, i) = xdot.elem (i); } } } return retval; } Matrix DASSL::do_integrate (const ColumnVector& tout, const ColumnVector& tcrit) { Matrix dummy; return integrate (tout, dummy, tcrit); } Matrix DASSL::integrate (const ColumnVector& tout, Matrix& xdot_out, const ColumnVector& tcrit) { Matrix retval; octave_idx_type n_out = tout.numel (); octave_idx_type n = size (); if (n_out > 0 && n > 0) { retval.resize (n_out, n); xdot_out.resize (n_out, n); for (octave_idx_type i = 0; i < n; i++) { retval.elem (0, i) = x.elem (i); xdot_out.elem (0, i) = xdot.elem (i); } octave_idx_type n_crit = tcrit.numel (); if (n_crit > 0) { octave_idx_type i_crit = 0; octave_idx_type i_out = 1; double next_crit = tcrit.elem (0); double next_out; while (i_out < n_out) { bool do_restart = false; next_out = tout.elem (i_out); if (i_crit < n_crit) next_crit = tcrit.elem (i_crit); bool save_output; double t_out; if (next_crit == next_out) { set_stop_time (next_crit); t_out = next_out; save_output = true; i_out++; i_crit++; do_restart = true; } else if (next_crit < next_out) { if (i_crit < n_crit) { set_stop_time (next_crit); t_out = next_crit; save_output = false; i_crit++; do_restart = true; } else { clear_stop_time (); t_out = next_out; save_output = true; i_out++; } } else { set_stop_time (next_crit); t_out = next_out; save_output = true; i_out++; } ColumnVector x_next = do_integrate (t_out); if (integration_error) return retval; if (save_output) { for (octave_idx_type i = 0; i < n; i++) { retval.elem (i_out-1, i) = x_next.elem (i); xdot_out.elem (i_out-1, i) = xdot.elem (i); } } if (do_restart) force_restart (); } } else { retval = integrate (tout, xdot_out); if (integration_error) return retval; } } return retval; } std::string DASSL::error_message (void) const { std::string retval; std::ostringstream buf; buf << t; std::string t_curr = buf.str (); switch (istate) { case 1: retval = "a step was successfully taken in intermediate-output mode."; break; case 2: retval = "integration completed by stepping exactly to TOUT"; break; case 3: retval = "integration to tout completed by stepping past TOUT"; break; case -1: retval = std::string ("a large amount of work has been expended (t =") + t_curr + ")"; break; case -2: retval = "the error tolerances are too stringent"; break; case -3: retval = std::string ("error weight became zero during problem. (t = ") + t_curr + "; solution component i vanished, and atol or atol(i) == 0)"; break; case -6: retval = std::string ("repeated error test failures on the last attempted step (t = ") + t_curr + ")"; break; case -7: retval = std::string ("the corrector could not converge (t = ") + t_curr + ")"; break; case -8: retval = std::string ("the matrix of partial derivatives is singular (t = ") + t_curr + ")"; break; case -9: retval = std::string ("the corrector could not converge (t = ") + t_curr + "; repeated test failures)"; break; case -10: retval = std::string ("corrector could not converge because IRES was -1 (t = ") + t_curr + ")"; break; case -11: retval = std::string ("return requested in user-supplied function (t = ") + t_curr + ")"; break; case -12: retval = "failed to compute consistent initial conditions"; break; case -33: retval = "unrecoverable error (see printed message)"; break; default: retval = "unknown error state"; break; } return retval; }