annotate libinterp/dldfcn/fftw.cc @ 21100:e39e05d90788

Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. * libinterp/corefcn/errwarn.h, libinterp/corefcn/errwarn.cc: New header and .cc file with common errors and warnings for libinterp. * libinterp/corefcn/module.mk: Add errwarn.h, errwarn.cc to build system. * liboctave/util/lo-array-errwarn.h, liboctave/util/lo-array-errwarn.cc: New header and .cc file with common errors and warnings for liboctave. * liboctave/util/module.mk: Add lo-array-errwarn.h, lo-array-errwarn.cc to build system. * lo-array-gripes.h: #include "lo-array-errwarn.h" for access to class index_exception. Remove const char *error_id_XXX prototypes. * lo-array-gripes.cc: Remove const char *error_id_XXX initializations. Remove index_exception method definitions. * Cell.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc, betainc.cc, cellfun.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc, det.cc, dirfns.cc, eig.cc, fft.cc, fft2.cc, fftn.cc, find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, graphics.in.h, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, jit-typeinfo.cc, load-save.cc, lookup.cc, ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc, ls-mat5.cc, ls-oct-binary.cc, ls-oct-text.cc, lsode.cc, lu.cc, luinc.cc, max.cc, mgorth.cc, oct-hist.cc, oct-procbuf.cc, oct-stream.cc, oct.h, pager.cc, pinv.cc, pr-output.cc, quad.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sparse-xdiv.cc, sparse-xpow.cc, sparse.cc, spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, syscalls.cc, typecast.cc, utils.cc, variables.cc, xdiv.cc, xnorm.cc, xpow.cc, __eigs__.cc, __glpk__.cc, __magick_read__.cc, __osmesa_print__.cc, audiodevinfo.cc, audioread.cc, chol.cc, dmperm.cc, fftw.cc, qr.cc, symbfact.cc, symrcm.cc, ov-base-diag.cc, ov-base-int.cc, ov-base-mat.cc, ov-base-scalar.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.cc, ov-cell.cc, ov-ch-mat.cc, ov-class.cc, ov-complex.cc, ov-complex.h, ov-cs-list.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-float.cc, ov-float.h, ov-flt-complex.cc, ov-flt-complex.h, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-int16.cc, ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-intx.h, ov-mex-fcn.cc, ov-perm.cc, ov-range.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-scalar.h, ov-str-mat.cc, ov-struct.cc, ov-type-conv.h, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc, ov.cc, op-b-b.cc, op-b-bm.cc, op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc, op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc, op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-dms-template.cc, op-double-conv.cc, op-fcdm-fcdm.cc, op-fcdm-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc, op-int-conv.cc, op-int.h, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc, op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, ops.h, lex.ll, pt-assign.cc, pt-eval.cc, pt-idx.cc, pt-loop.cc, pt-mat.cc, pt-stmt.cc, Array-util.cc, Array-util.h, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc, DiagArray2.cc, MDiagArray2.cc, MSparse.cc, PermMatrix.cc, Range.cc, Sparse.cc, dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, CmplxGEPBAL.cc, dbleGEPBAL.cc, fCmplxGEPBAL.cc, floatGEPBAL.cc, Sparse-diag-op-defs.h, Sparse-op-defs.h, Sparse-perm-op-defs.h, mx-inlines.cc, mx-op-defs.h, oct-binmap.h: Replace 'include "gripes.h"' with 'include "errwarn.h". Change all gripe_XXX to err_XXX or warn_XXX or errwarn_XXX.
author Rik <rik@octave.org>
date Mon, 18 Jan 2016 18:28:06 -0800
parents b17fda023ca6
children bd1752782e56
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1 /*
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2
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3 Copyright (C) 2006-2015 David Bateman
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4
aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman]
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5 This file is part of Octave.
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6
aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman]
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <algorithm>
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28
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29 #include "oct-fftw.h"
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30
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31 #include "defun-dld.h"
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32 #include "error.h"
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33 #include "ov.h"
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34
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35 #include "errwarn.h"
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36
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37 DEFUN_DLD (fftw, args, ,
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38 "-*- texinfo -*-\n\
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39 @deftypefn {} {@var{method} =} fftw (\"planner\")\n\
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40 @deftypefnx {} {} fftw (\"planner\", @var{method})\n\
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41 @deftypefnx {} {@var{wisdom} =} fftw (\"dwisdom\")\n\
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42 @deftypefnx {} {} fftw (\"dwisdom\", @var{wisdom})\n\
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43 @deftypefnx {} {} fftw (\"threads\", @var{nthreads})\n\
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44 @deftypefnx {} {@var{nthreads} =} fftw (\"threads\")\n\
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45 \n\
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46 Manage @sc{fftw} wisdom data.\n\
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47 \n\
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48 Wisdom data can be used to significantly accelerate the calculation of the\n\
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49 FFTs, but implies an initial cost in its calculation. When the @sc{fftw}\n\
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50 libraries are initialized, they read a system wide wisdom file (typically in\n\
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51 @file{/etc/fftw/wisdom}), allowing wisdom to be shared between applications\n\
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52 other than Octave. Alternatively, the @code{fftw} function can be used to\n\
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53 import wisdom. For example,\n\
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54 \n\
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55 @example\n\
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56 @var{wisdom} = fftw (\"dwisdom\")\n\
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57 @end example\n\
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58 \n\
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59 @noindent\n\
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60 will save the existing wisdom used by Octave to the string @var{wisdom}.\n\
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61 This string can then be saved to a file and restored using the @code{save}\n\
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62 and @code{load} commands respectively. This existing wisdom can be\n\
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63 re-imported as follows\n\
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64 \n\
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65 @example\n\
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66 fftw (\"dwisdom\", @var{wisdom})\n\
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67 @end example\n\
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68 \n\
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69 If @var{wisdom} is an empty string, then the wisdom used is cleared.\n\
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70 \n\
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71 During the calculation of Fourier transforms further wisdom is generated.\n\
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72 The fashion in which this wisdom is generated is also controlled by\n\
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73 the @code{fftw} function. There are five different manners in which the\n\
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74 wisdom can be treated:\n\
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75 \n\
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76 @table @asis\n\
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77 @item @qcode{\"estimate\"}\n\
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78 Specifies that no run-time measurement of the optimal means of\n\
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79 calculating a particular is performed, and a simple heuristic is used\n\
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80 to pick a (probably sub-optimal) plan. The advantage of this method is\n\
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81 that there is little or no overhead in the generation of the plan, which\n\
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82 is appropriate for a Fourier transform that will be calculated once.\n\
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83 \n\
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84 @item @qcode{\"measure\"}\n\
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85 In this case a range of algorithms to perform the transform is considered\n\
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86 and the best is selected based on their execution time.\n\
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87 \n\
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88 @item @qcode{\"patient\"}\n\
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89 Similar to @qcode{\"measure\"}, but a wider range of algorithms is\n\
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90 considered.\n\
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91 \n\
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92 @item @qcode{\"exhaustive\"}\n\
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93 Like @qcode{\"measure\"}, but all possible algorithms that may be used to\n\
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94 treat the transform are considered.\n\
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95 \n\
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96 @item @qcode{\"hybrid\"}\n\
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97 As run-time measurement of the algorithm can be expensive, this is a\n\
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98 compromise where @qcode{\"measure\"} is used for transforms up to the size\n\
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99 of 8192 and beyond that the @qcode{\"estimate\"} method is used.\n\
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100 @end table\n\
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101 \n\
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102 The default method is @qcode{\"estimate\"}. The current method can\n\
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01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
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103 be queried with\n\
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104 \n\
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105 @example\n\
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106 @var{method} = fftw (\"planner\")\n\
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107 @end example\n\
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108 \n\
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a4f482e66b65 Grammarcheck more of the documentation.
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109 @noindent\n\
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110 or set by using\n\
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111 \n\
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112 @example\n\
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113 fftw (\"planner\", @var{method})\n\
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114 @end example\n\
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115 \n\
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116 Note that calculated wisdom will be lost when restarting Octave. However,\n\
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117 the wisdom data can be reloaded if it is saved to a file as described\n\
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118 above. Saved wisdom files should not be used on different platforms since\n\
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119 they will not be efficient and the point of calculating the wisdom is lost.\n\
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120 \n\
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121 The number of threads used for computing the plans and executing the\n\
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122 transforms can be set with\n\
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123 \n\
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124 @example\n\
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125 fftw (\"threads\", @var{NTHREADS})\n\
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126 @end example\n\
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127 \n\
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128 Note that octave must be compiled with multi-threaded @sc{fftw} support for\n\
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129 this feature. The number of processors available to the current process is\n\
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130 used per default.\n\
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131 \n\
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132 @seealso{fft, ifft, fft2, ifft2, fftn, ifftn}\n\
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133 @end deftypefn")
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134 {
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135 #if defined (HAVE_FFTW)
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136
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137 int nargin = args.length ();
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138
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139 if (nargin < 1 || nargin > 2)
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140 print_usage ();
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141
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142 octave_value retval;
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143
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144 std::string arg0 = args(0).xstring_value ("fftw: first argument must be a string");
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145
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146 if (arg0 == "planner")
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147 {
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148 if (nargin == 2) // planner setter
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149 {
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150 // Use STL function to convert to lower case
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diff changeset
151 std::transform (arg0.begin (), arg0.end (), arg0.begin (), tolower);
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152
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153 std::string arg1 = args(1).xstring_value ("fftw: METHOD must be a string");
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154
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155 std::transform (arg1.begin (), arg1.end (), arg1.begin (), tolower);
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156 octave_fftw_planner::FftwMethod meth
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157 = octave_fftw_planner::UNKNOWN;
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158 octave_float_fftw_planner::FftwMethod methf
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159 = octave_float_fftw_planner::UNKNOWN;
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160
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161 if (arg1 == "estimate")
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162 {
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163 meth = octave_fftw_planner::ESTIMATE;
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164 methf = octave_float_fftw_planner::ESTIMATE;
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165 }
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166 else if (arg1 == "measure")
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167 {
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168 meth = octave_fftw_planner::MEASURE;
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169 methf = octave_float_fftw_planner::MEASURE;
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170 }
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171 else if (arg1 == "patient")
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172 {
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173 meth = octave_fftw_planner::PATIENT;
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174 methf = octave_float_fftw_planner::PATIENT;
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175 }
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176 else if (arg1 == "exhaustive")
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177 {
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178 meth = octave_fftw_planner::EXHAUSTIVE;
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179 methf = octave_float_fftw_planner::EXHAUSTIVE;
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180 }
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181 else if (arg1 == "hybrid")
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182 {
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183 meth = octave_fftw_planner::HYBRID;
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184 methf = octave_float_fftw_planner::HYBRID;
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185 }
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186 else
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187 error ("fftw: unrecognized planner METHOD");
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188
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189 meth = octave_fftw_planner::method (meth);
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190 octave_float_fftw_planner::method (methf);
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191
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192 if (meth == octave_fftw_planner::MEASURE)
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193 retval = octave_value ("measure");
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194 else if (meth == octave_fftw_planner::PATIENT)
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195 retval = octave_value ("patient");
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196 else if (meth == octave_fftw_planner::EXHAUSTIVE)
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197 retval = octave_value ("exhaustive");
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198 else if (meth == octave_fftw_planner::HYBRID)
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199 retval = octave_value ("hybrid");
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200 else
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201 retval = octave_value ("estimate");
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202 }
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203 else //planner getter
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204 {
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205 octave_fftw_planner::FftwMethod meth =
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206 octave_fftw_planner::method ();
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207
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208 if (meth == octave_fftw_planner::MEASURE)
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209 retval = octave_value ("measure");
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210 else if (meth == octave_fftw_planner::PATIENT)
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211 retval = octave_value ("patient");
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212 else if (meth == octave_fftw_planner::EXHAUSTIVE)
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213 retval = octave_value ("exhaustive");
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214 else if (meth == octave_fftw_planner::HYBRID)
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215 retval = octave_value ("hybrid");
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216 else
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217 retval = octave_value ("estimate");
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218 }
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219 }
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220 else if (arg0 == "dwisdom")
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221 {
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222 if (nargin == 2) //dwisdom setter
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223 {
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224 // Use STL function to convert to lower case
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diff changeset
225 std::transform (arg0.begin (), arg0.end (), arg0.begin (),
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diff changeset
226 tolower);
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diff changeset
227
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diff changeset
228 std::string arg1 = args(1).xstring_value ("fftw: WISDOM must be a string");
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229
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diff changeset
230 char *str = fftw_export_wisdom_to_string ();
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diff changeset
231
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232 if (arg1.length () < 1)
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diff changeset
233 fftw_forget_wisdom ();
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diff changeset
234 else if (! fftw_import_wisdom_from_string (arg1.c_str ()))
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diff changeset
235 error ("fftw: could not import supplied WISDOM");
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236
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237 retval = octave_value (std::string (str));
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238
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239 // FIXME: need to free string even if there is an exception.
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240 free (str);
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241 }
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242 else //dwisdom getter
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diff changeset
243 {
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diff changeset
244 char *str = fftw_export_wisdom_to_string ();
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245 retval = octave_value (std::string (str));
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246
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247 // FIXME: need to free string even if there is an exception.
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248 free (str);
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249 }
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250 }
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251 else if (arg0 == "swisdom")
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252 {
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253 //swisdom uses fftwf_ functions (float), dwisdom fftw_ (real)
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254 if (nargin == 2) //swisdom setter
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255 {
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256 // Use STL function to convert to lower case
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diff changeset
257 std::transform (arg0.begin (), arg0.end (), arg0.begin (),
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diff changeset
258 tolower);
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259
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260 std::string arg1 = args(1).xstring_value ("fftw: WISDOM must be a string");
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261
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diff changeset
262 char *str = fftwf_export_wisdom_to_string ();
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263
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264 if (arg1.length () < 1)
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265 fftwf_forget_wisdom ();
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266 else if (! fftwf_import_wisdom_from_string (arg1.c_str ()))
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diff changeset
267 error ("fftw: could not import supplied WISDOM");
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268
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269 retval = octave_value (std::string (str));
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270
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271 // FIXME: need to free string even if there is an exception.
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272 free (str);
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273 }
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274 else //swisdom getter
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275 {
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276 char *str = fftwf_export_wisdom_to_string ();
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277 retval = octave_value (std::string (str));
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278
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diff changeset
279 // FIXME: need to free string even if there is an exception.
20579
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diff changeset
280 free (str);
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281 }
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282 }
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283 else if (arg0 == "threads")
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284 {
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285 if (nargin == 2) //threads setter
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286 {
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287 if (! args(1).is_real_scalar ())
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diff changeset
288 error ("fftw: setting threads needs one integer argument");
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289
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290 int nthreads = args(1).int_value();
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291 if (nthreads < 1)
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292 error ("fftw: number of threads must be >=1");
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293
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294 #if defined (HAVE_FFTW3_THREADS)
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295 octave_fftw_planner::threads (nthreads);
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296 #else
21100
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297 err_disabled_feature ("fftw", "multithreaded FFTW");
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298 #endif
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299 #if defined (HAVE_FFTW3F_THREADS)
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300 octave_float_fftw_planner::threads (nthreads);
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301 #else
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302 err_disabled_feature ("fftw", "multithreaded FFTW");
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303 #endif
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304 }
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305 else //threads getter
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306 #if defined (HAVE_FFTW3_THREADS)
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307 retval = octave_value (octave_fftw_planner::threads());
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308 #else
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309 retval = 1;
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310 #endif
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311 }
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diff changeset
312 else
19221
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diff changeset
313 error ("fftw: unrecognized argument");
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diff changeset
314
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315 return retval;
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diff changeset
316
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317 #else
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318
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diff changeset
319 err_disabled_feature ("fftw", "the FFTW3 planner");
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320
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321 #endif
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322 }
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323
f63a4f23bfe7 Fix infinite loop when setting fftw planner method (bug #37873)
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diff changeset
324 /*
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325 %!testif HAVE_FFTW
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326 %! def_method = fftw ("planner");
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327 %! unwind_protect
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328 %! method = "estimate";
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diff changeset
329 %! fftw ("planner", method);
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diff changeset
330 %! assert (fftw ("planner"), method);
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diff changeset
331 %! method = "measure";
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diff changeset
332 %! fftw ("planner", method);
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diff changeset
333 %! assert (fftw ("planner"), method);
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diff changeset
334 %! method = "patient";
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diff changeset
335 %! fftw ("planner", method);
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diff changeset
336 %! assert (fftw ("planner"), method);
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diff changeset
337 %! method = "exhaustive";
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diff changeset
338 %! fftw ("planner", method);
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diff changeset
339 %! assert (fftw ("planner"), method);
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diff changeset
340 %! method = "hybrid";
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diff changeset
341 %! fftw ("planner", method);
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diff changeset
342 %! assert (fftw ("planner"), method);
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diff changeset
343 %! unwind_protect_cleanup
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diff changeset
344 %! fftw ("planner", def_method);
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345 %! end_unwind_protect
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diff changeset
346
19130
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diff changeset
347 %!testif HAVE_FFTW
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348 %! def_dwisdom = fftw ("dwisdom");
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diff changeset
349 %! def_swisdom = fftw ("swisdom");
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diff changeset
350 %! unwind_protect
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diff changeset
351 %! wisdom = fftw ("dwisdom");
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diff changeset
352 %! assert (ischar (wisdom));
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diff changeset
353 %! fftw ("dwisdom", wisdom);
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diff changeset
354 %! assert (fftw ("dwisdom"), wisdom);
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diff changeset
355 %! wisdom = fftw ("swisdom");
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diff changeset
356 %! assert (ischar (wisdom));
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diff changeset
357 %! fftw ("swisdom", wisdom);
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diff changeset
358 %! assert (fftw ("swisdom"), wisdom);
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diff changeset
359 %! unwind_protect_cleanup
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diff changeset
360 %! fftw ("dwisdom", def_dwisdom);
90421e725f1d codesprint: Tests for fftw
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diff changeset
361 %! fftw ("swisdom", def_swisdom);
90421e725f1d codesprint: Tests for fftw
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diff changeset
362 %! end_unwind_protect
15741
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diff changeset
363
15960
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diff changeset
364 %!testif HAVE_FFTW3_THREADS
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diff changeset
365 %! n = fftw ("threads");
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diff changeset
366 %! unwind_protect
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diff changeset
367 %! fftw ("threads", 3);
bde7731b2b83 added FFTW multithreaded library support
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diff changeset
368 %! assert (fftw ("threads"), 3);
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diff changeset
369 %! unwind_protect_cleanup
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diff changeset
370 %! fftw ("threads", n);
bde7731b2b83 added FFTW multithreaded library support
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diff changeset
371 %! end_unwind_protect
19130
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
372
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
373 %!error <Invalid call to fftw> fftw ();
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
374 %!error <Invalid call to fftw> fftw ("planner", "estimate", "measure");
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
375 %!error fftw (3);
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
376 %!error fftw ("invalid");
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
377 %!error fftw ("planner", "invalid");
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
378 %!error fftw ("planner", 2);
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
379 %!error fftw ("dwisdom", "invalid");
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
380 %!error fftw ("swisdom", "invalid");
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
381 %!error fftw ("threads", "invalid");
90421e725f1d codesprint: Tests for fftw
Mike Miller <mtmiller@ieee.org>
parents: 18678
diff changeset
382 %!error fftw ("threads", -3);
15741
f63a4f23bfe7 Fix infinite loop when setting fftw planner method (bug #37873)
Mike Miller <mtmiller@ieee.org>
parents: 14138
diff changeset
383 */