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Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam <cannam@all-day-breakfast.com>
date Tue, 19 Nov 2019 14:52:55 +0000
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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
2 <html>
3 <!-- This manual is for FFTW
4 (version 3.3.8, 24 May 2018).
5
6 Copyright (C) 2003 Matteo Frigo.
7
8 Copyright (C) 2003 Massachusetts Institute of Technology.
9
10 Permission is granted to make and distribute verbatim copies of this
11 manual provided the copyright notice and this permission notice are
12 preserved on all copies.
13
14 Permission is granted to copy and distribute modified versions of this
15 manual under the conditions for verbatim copying, provided that the
16 entire resulting derived work is distributed under the terms of a
17 permission notice identical to this one.
18
19 Permission is granted to copy and distribute translations of this manual
20 into another language, under the above conditions for modified versions,
21 except that this permission notice may be stated in a translation
22 approved by the Free Software Foundation. -->
23 <!-- Created by GNU Texinfo 6.3, http://www.gnu.org/software/texinfo/ -->
24 <head>
25 <title>FFTW 3.3.8: Installation and Customization</title>
26
27 <meta name="description" content="FFTW 3.3.8: Installation and Customization">
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35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
36 <link href="index.html#Top" rel="up" title="Top">
37 <link href="Installation-on-Unix.html#Installation-on-Unix" rel="next" title="Installation on Unix">
38 <link href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2" rel="prev" title="Upgrading from FFTW version 2">
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68 </head>
69
70 <body lang="en">
71 <a name="Installation-and-Customization"></a>
72 <div class="header">
73 <p>
74 Next: <a href="Acknowledgments.html#Acknowledgments" accesskey="n" rel="next">Acknowledgments</a>, Previous: <a href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2" accesskey="p" rel="prev">Upgrading from FFTW version 2</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<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>
75 </div>
76 <hr>
77 <a name="Installation-and-Customization-1"></a>
78 <h2 class="chapter">10 Installation and Customization</h2>
79 <a name="index-installation"></a>
80
81 <p>This chapter describes the installation and customization of FFTW, the
82 latest version of which may be downloaded from
83 <a href="http://www.fftw.org">the FFTW home page</a>.
84 </p>
85 <p>In principle, FFTW should work on any system with an ANSI C compiler
86 (<code>gcc</code> is fine). However, planner time is drastically reduced if
87 FFTW can exploit a hardware cycle counter; FFTW comes with cycle-counter
88 support for all modern general-purpose CPUs, but you may need to add a
89 couple of lines of code if your compiler is not yet supported
90 (see <a href="Cycle-Counters.html#Cycle-Counters">Cycle Counters</a>). (On Unix, there will be a warning at the end
91 of the <code>configure</code> output if no cycle counter is found.)
92 <a name="index-cycle-counter"></a>
93 <a name="index-compiler-1"></a>
94 <a name="index-portability-9"></a>
95 </p>
96
97 <p>Installation of FFTW is simplest if you have a Unix or a GNU system,
98 such as GNU/Linux, and we describe this case in the first section below,
99 including the use of special configuration options to e.g. install
100 different precisions or exploit optimizations for particular
101 architectures (e.g. SIMD). Compilation on non-Unix systems is a more
102 manual process, but we outline the procedure in the second section. It
103 is also likely that pre-compiled binaries will be available for popular
104 systems.
105 </p>
106 <p>Finally, we describe how you can customize FFTW for particular needs by
107 generating <em>codelets</em> for fast transforms of sizes not supported
108 efficiently by the standard FFTW distribution.
109 <a name="index-codelet-1"></a>
110 </p>
111 <table class="menu" border="0" cellspacing="0">
112 <tr><td align="left" valign="top">&bull; <a href="Installation-on-Unix.html#Installation-on-Unix" accesskey="1">Installation on Unix</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
113 </td></tr>
114 <tr><td align="left" valign="top">&bull; <a href="Installation-on-non_002dUnix-systems.html#Installation-on-non_002dUnix-systems" accesskey="2">Installation on non-Unix systems</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
115 </td></tr>
116 <tr><td align="left" valign="top">&bull; <a href="Cycle-Counters.html#Cycle-Counters" accesskey="3">Cycle Counters</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
117 </td></tr>
118 <tr><td align="left" valign="top">&bull; <a href="Generating-your-own-code.html#Generating-your-own-code" accesskey="4">Generating your own code</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
119 </td></tr>
120 </table>
121
122
123 <hr>
124 <div class="header">
125 <p>
126 Next: <a href="Acknowledgments.html#Acknowledgments" accesskey="n" rel="next">Acknowledgments</a>, Previous: <a href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2" accesskey="p" rel="prev">Upgrading from FFTW version 2</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<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>
127 </div>
128
129
130
131 </body>
132 </html>