|
Chris@82
|
1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
Chris@82
|
2 <html>
|
|
Chris@82
|
3 <!-- This manual is for FFTW
|
|
Chris@82
|
4 (version 3.3.8, 24 May 2018).
|
|
Chris@82
|
5
|
|
Chris@82
|
6 Copyright (C) 2003 Matteo Frigo.
|
|
Chris@82
|
7
|
|
Chris@82
|
8 Copyright (C) 2003 Massachusetts Institute of Technology.
|
|
Chris@82
|
9
|
|
Chris@82
|
10 Permission is granted to make and distribute verbatim copies of this
|
|
Chris@82
|
11 manual provided the copyright notice and this permission notice are
|
|
Chris@82
|
12 preserved on all copies.
|
|
Chris@82
|
13
|
|
Chris@82
|
14 Permission is granted to copy and distribute modified versions of this
|
|
Chris@82
|
15 manual under the conditions for verbatim copying, provided that the
|
|
Chris@82
|
16 entire resulting derived work is distributed under the terms of a
|
|
Chris@82
|
17 permission notice identical to this one.
|
|
Chris@82
|
18
|
|
Chris@82
|
19 Permission is granted to copy and distribute translations of this manual
|
|
Chris@82
|
20 into another language, under the above conditions for modified versions,
|
|
Chris@82
|
21 except that this permission notice may be stated in a translation
|
|
Chris@82
|
22 approved by the Free Software Foundation. -->
|
|
Chris@82
|
23 <!-- Created by GNU Texinfo 6.3, http://www.gnu.org/software/texinfo/ -->
|
|
Chris@82
|
24 <head>
|
|
Chris@82
|
25 <title>FFTW 3.3.8: Guru Interface</title>
|
|
Chris@82
|
26
|
|
Chris@82
|
27 <meta name="description" content="FFTW 3.3.8: Guru Interface">
|
|
Chris@82
|
28 <meta name="keywords" content="FFTW 3.3.8: Guru Interface">
|
|
Chris@82
|
29 <meta name="resource-type" content="document">
|
|
Chris@82
|
30 <meta name="distribution" content="global">
|
|
Chris@82
|
31 <meta name="Generator" content="makeinfo">
|
|
Chris@82
|
32 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
Chris@82
|
33 <link href="index.html#Top" rel="start" title="Top">
|
|
Chris@82
|
34 <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
|
|
Chris@82
|
35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
Chris@82
|
36 <link href="FFTW-Reference.html#FFTW-Reference" rel="up" title="FFTW Reference">
|
|
Chris@82
|
37 <link href="Interleaved-and-split-arrays.html#Interleaved-and-split-arrays" rel="next" title="Interleaved and split arrays">
|
|
Chris@82
|
38 <link href="Advanced-Real_002dto_002dreal-Transforms.html#Advanced-Real_002dto_002dreal-Transforms" rel="prev" title="Advanced Real-to-real Transforms">
|
|
Chris@82
|
39 <style type="text/css">
|
|
Chris@82
|
40 <!--
|
|
Chris@82
|
41 a.summary-letter {text-decoration: none}
|
|
Chris@82
|
42 blockquote.indentedblock {margin-right: 0em}
|
|
Chris@82
|
43 blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
|
Chris@82
|
44 blockquote.smallquotation {font-size: smaller}
|
|
Chris@82
|
45 div.display {margin-left: 3.2em}
|
|
Chris@82
|
46 div.example {margin-left: 3.2em}
|
|
Chris@82
|
47 div.lisp {margin-left: 3.2em}
|
|
Chris@82
|
48 div.smalldisplay {margin-left: 3.2em}
|
|
Chris@82
|
49 div.smallexample {margin-left: 3.2em}
|
|
Chris@82
|
50 div.smalllisp {margin-left: 3.2em}
|
|
Chris@82
|
51 kbd {font-style: oblique}
|
|
Chris@82
|
52 pre.display {font-family: inherit}
|
|
Chris@82
|
53 pre.format {font-family: inherit}
|
|
Chris@82
|
54 pre.menu-comment {font-family: serif}
|
|
Chris@82
|
55 pre.menu-preformatted {font-family: serif}
|
|
Chris@82
|
56 pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
Chris@82
|
57 pre.smallexample {font-size: smaller}
|
|
Chris@82
|
58 pre.smallformat {font-family: inherit; font-size: smaller}
|
|
Chris@82
|
59 pre.smalllisp {font-size: smaller}
|
|
Chris@82
|
60 span.nolinebreak {white-space: nowrap}
|
|
Chris@82
|
61 span.roman {font-family: initial; font-weight: normal}
|
|
Chris@82
|
62 span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
Chris@82
|
63 ul.no-bullet {list-style: none}
|
|
Chris@82
|
64 -->
|
|
Chris@82
|
65 </style>
|
|
Chris@82
|
66
|
|
Chris@82
|
67
|
|
Chris@82
|
68 </head>
|
|
Chris@82
|
69
|
|
Chris@82
|
70 <body lang="en">
|
|
Chris@82
|
71 <a name="Guru-Interface"></a>
|
|
Chris@82
|
72 <div class="header">
|
|
Chris@82
|
73 <p>
|
|
Chris@82
|
74 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>
|
|
Chris@82
|
75 </div>
|
|
Chris@82
|
76 <hr>
|
|
Chris@82
|
77 <a name="Guru-Interface-1"></a>
|
|
Chris@82
|
78 <h3 class="section">4.5 Guru Interface</h3>
|
|
Chris@82
|
79 <a name="index-guru-interface-2"></a>
|
|
Chris@82
|
80
|
|
Chris@82
|
81 <p>The “guru” interface to FFTW is intended to expose as much as possible
|
|
Chris@82
|
82 of the flexibility in the underlying FFTW architecture. It allows one
|
|
Chris@82
|
83 to compute multi-dimensional “vectors” (loops) of multi-dimensional
|
|
Chris@82
|
84 transforms, where each vector/transform dimension has an independent
|
|
Chris@82
|
85 size and stride.
|
|
Chris@82
|
86 <a name="index-vector"></a>
|
|
Chris@82
|
87 One can also use more general complex-number formats, e.g. separate real
|
|
Chris@82
|
88 and imaginary arrays.
|
|
Chris@82
|
89 </p>
|
|
Chris@82
|
90 <p>For those users who require the flexibility of the guru interface, it is
|
|
Chris@82
|
91 important that they pay special attention to the documentation lest they
|
|
Chris@82
|
92 shoot themselves in the foot.
|
|
Chris@82
|
93 </p>
|
|
Chris@82
|
94 <table class="menu" border="0" cellspacing="0">
|
|
Chris@82
|
95 <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">
|
|
Chris@82
|
96 </td></tr>
|
|
Chris@82
|
97 <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">
|
|
Chris@82
|
98 </td></tr>
|
|
Chris@82
|
99 <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">
|
|
Chris@82
|
100 </td></tr>
|
|
Chris@82
|
101 <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">
|
|
Chris@82
|
102 </td></tr>
|
|
Chris@82
|
103 <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">
|
|
Chris@82
|
104 </td></tr>
|
|
Chris@82
|
105 <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">
|
|
Chris@82
|
106 </td></tr>
|
|
Chris@82
|
107 </table>
|
|
Chris@82
|
108
|
|
Chris@82
|
109
|
|
Chris@82
|
110
|
|
Chris@82
|
111
|
|
Chris@82
|
112 </body>
|
|
Chris@82
|
113 </html>
|
