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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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2 <html>
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3 <!-- This manual is for FFTW
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4 (version 3.3.5, 30 July 2016).
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5
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6 Copyright (C) 2003 Matteo Frigo.
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7
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8 Copyright (C) 2003 Massachusetts Institute of Technology.
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9
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10 Permission is granted to make and distribute verbatim copies of this
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11 manual provided the copyright notice and this permission notice are
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12 preserved on all copies.
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13
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14 Permission is granted to copy and distribute modified versions of this
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15 manual under the conditions for verbatim copying, provided that the
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16 entire resulting derived work is distributed under the terms of a
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17 permission notice identical to this one.
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18
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19 Permission is granted to copy and distribute translations of this manual
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20 into another language, under the above conditions for modified versions,
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21 except that this permission notice may be stated in a translation
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22 approved by the Free Software Foundation. -->
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23 <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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24 <head>
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25 <title>FFTW 3.3.5: Guru Interface</title>
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26
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27 <meta name="description" content="FFTW 3.3.5: Guru Interface">
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28 <meta name="keywords" content="FFTW 3.3.5: Guru Interface">
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33 <link href="index.html#Top" rel="start" title="Top">
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34 <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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36 <link href="FFTW-Reference.html#FFTW-Reference" rel="up" title="FFTW Reference">
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37 <link href="Interleaved-and-split-arrays.html#Interleaved-and-split-arrays" rel="next" title="Interleaved and split arrays">
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38 <link href="Advanced-Real_002dto_002dreal-Transforms.html#Advanced-Real_002dto_002dreal-Transforms" rel="prev" title="Advanced Real-to-real Transforms">
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65 -->
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66 </style>
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67
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68
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69 </head>
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70
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71 <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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72 <a name="Guru-Interface"></a>
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73 <div class="header">
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74 <p>
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75 Next: <a href="New_002darray-Execute-Functions.html#New_002darray-Execute-Functions" accesskey="n" rel="next">New-array Execute Functions</a>, Previous: <a href="Advanced-Interface.html#Advanced-Interface" accesskey="p" rel="prev">Advanced Interface</a>, Up: <a href="FFTW-Reference.html#FFTW-Reference" accesskey="u" rel="up">FFTW Reference</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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76 </div>
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77 <hr>
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78 <a name="Guru-Interface-1"></a>
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79 <h3 class="section">4.5 Guru Interface</h3>
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80 <a name="index-guru-interface-2"></a>
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81
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82 <p>The “guru” interface to FFTW is intended to expose as much as possible
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83 of the flexibility in the underlying FFTW architecture. It allows one
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84 to compute multi-dimensional “vectors” (loops) of multi-dimensional
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85 transforms, where each vector/transform dimension has an independent
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86 size and stride.
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87 <a name="index-vector"></a>
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88 One can also use more general complex-number formats, e.g. separate real
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89 and imaginary arrays.
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90 </p>
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91 <p>For those users who require the flexibility of the guru interface, it is
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92 important that they pay special attention to the documentation lest they
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93 shoot themselves in the foot.
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94 </p>
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95 <table class="menu" border="0" cellspacing="0">
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96 <tr><td align="left" valign="top">• <a href="Interleaved-and-split-arrays.html#Interleaved-and-split-arrays" accesskey="1">Interleaved and split arrays</a>:</td><td> </td><td align="left" valign="top">
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97 </td></tr>
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98 <tr><td align="left" valign="top">• <a href="Guru-vector-and-transform-sizes.html#Guru-vector-and-transform-sizes" accesskey="2">Guru vector and transform sizes</a>:</td><td> </td><td align="left" valign="top">
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99 </td></tr>
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100 <tr><td align="left" valign="top">• <a href="Guru-Complex-DFTs.html#Guru-Complex-DFTs" accesskey="3">Guru Complex DFTs</a>:</td><td> </td><td align="left" valign="top">
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101 </td></tr>
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102 <tr><td align="left" valign="top">• <a href="Guru-Real_002ddata-DFTs.html#Guru-Real_002ddata-DFTs" accesskey="4">Guru Real-data DFTs</a>:</td><td> </td><td align="left" valign="top">
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103 </td></tr>
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104 <tr><td align="left" valign="top">• <a href="Guru-Real_002dto_002dreal-Transforms.html#Guru-Real_002dto_002dreal-Transforms" accesskey="5">Guru Real-to-real Transforms</a>:</td><td> </td><td align="left" valign="top">
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105 </td></tr>
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106 <tr><td align="left" valign="top">• <a href="64_002dbit-Guru-Interface.html#g_t64_002dbit-Guru-Interface" accesskey="6">64-bit Guru Interface</a>:</td><td> </td><td align="left" valign="top">
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107 </td></tr>
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108 </table>
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109
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110
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111
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112
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113 </body>
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114 </html>
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