|
d@0
|
1 <html lang="en">
|
|
d@0
|
2 <head>
|
|
d@0
|
3 <title>Installation and Customization - FFTW 3.2.1</title>
|
|
d@0
|
4 <meta http-equiv="Content-Type" content="text/html">
|
|
d@0
|
5 <meta name="description" content="FFTW 3.2.1">
|
|
d@0
|
6 <meta name="generator" content="makeinfo 4.8">
|
|
d@0
|
7 <link title="Top" rel="start" href="index.html#Top">
|
|
d@0
|
8 <link rel="prev" href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2" title="Upgrading from FFTW version 2">
|
|
d@0
|
9 <link rel="next" href="Acknowledgments.html#Acknowledgments" title="Acknowledgments">
|
|
d@0
|
10 <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
|
d@0
|
11 <!--
|
|
d@0
|
12 This manual is for FFTW
|
|
d@0
|
13 (version 3.2.1, 5 February 2009).
|
|
d@0
|
14
|
|
d@0
|
15 Copyright (C) 2003 Matteo Frigo.
|
|
d@0
|
16
|
|
d@0
|
17 Copyright (C) 2003 Massachusetts Institute of Technology.
|
|
d@0
|
18
|
|
d@0
|
19 Permission is granted to make and distribute verbatim copies of
|
|
d@0
|
20 this manual provided the copyright notice and this permission
|
|
d@0
|
21 notice are preserved on all copies.
|
|
d@0
|
22
|
|
d@0
|
23 Permission is granted to copy and distribute modified versions of
|
|
d@0
|
24 this manual under the conditions for verbatim copying, provided
|
|
d@0
|
25 that the entire resulting derived work is distributed under the
|
|
d@0
|
26 terms of a permission notice identical to this one.
|
|
d@0
|
27
|
|
d@0
|
28 Permission is granted to copy and distribute translations of this
|
|
d@0
|
29 manual into another language, under the above conditions for
|
|
d@0
|
30 modified versions, except that this permission notice may be
|
|
d@0
|
31 stated in a translation approved by the Free Software Foundation.
|
|
d@0
|
32 -->
|
|
d@0
|
33 <meta http-equiv="Content-Style-Type" content="text/css">
|
|
d@0
|
34 <style type="text/css"><!--
|
|
d@0
|
35 pre.display { font-family:inherit }
|
|
d@0
|
36 pre.format { font-family:inherit }
|
|
d@0
|
37 pre.smalldisplay { font-family:inherit; font-size:smaller }
|
|
d@0
|
38 pre.smallformat { font-family:inherit; font-size:smaller }
|
|
d@0
|
39 pre.smallexample { font-size:smaller }
|
|
d@0
|
40 pre.smalllisp { font-size:smaller }
|
|
d@0
|
41 span.sc { font-variant:small-caps }
|
|
d@0
|
42 span.roman { font-family:serif; font-weight:normal; }
|
|
d@0
|
43 span.sansserif { font-family:sans-serif; font-weight:normal; }
|
|
d@0
|
44 --></style>
|
|
d@0
|
45 </head>
|
|
d@0
|
46 <body>
|
|
d@0
|
47 <div class="node">
|
|
d@0
|
48 <p>
|
|
d@0
|
49 <a name="Installation-and-Customization"></a>
|
|
d@0
|
50 Next: <a rel="next" accesskey="n" href="Acknowledgments.html#Acknowledgments">Acknowledgments</a>,
|
|
d@0
|
51 Previous: <a rel="previous" accesskey="p" href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2">Upgrading from FFTW version 2</a>,
|
|
d@0
|
52 Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
|
|
d@0
|
53 <hr>
|
|
d@0
|
54 </div>
|
|
d@0
|
55
|
|
d@0
|
56 <h2 class="chapter">9 Installation and Customization</h2>
|
|
d@0
|
57
|
|
d@0
|
58 <p><a name="index-installation-357"></a>
|
|
d@0
|
59 This chapter describes the installation and customization of FFTW, the
|
|
d@0
|
60 latest version of which may be downloaded from
|
|
d@0
|
61 <a href="http://www.fftw.org">the FFTW home page</a>.
|
|
d@0
|
62
|
|
d@0
|
63 <p>In principle, FFTW should work on any system with an ANSI C compiler
|
|
d@0
|
64 (<code>gcc</code> is fine). However, planner time is drastically reduced if
|
|
d@0
|
65 FFTW can exploit a hardware cycle counter; FFTW comes with cycle-counter
|
|
d@0
|
66 support for all modern general-purpose CPUs, but you may need to add a
|
|
d@0
|
67 couple of lines of code if your compiler is not yet supported
|
|
d@0
|
68 (see <a href="Cycle-Counters.html#Cycle-Counters">Cycle Counters</a>). (On Unix, there will be a warning at the end
|
|
d@0
|
69 of the <code>configure</code> output if no cycle counter is found.)
|
|
d@0
|
70 <a name="index-cycle-counter-358"></a><a name="index-compiler-359"></a><a name="index-portability-360"></a>
|
|
d@0
|
71 Installation of FFTW is simplest if you have a Unix or a GNU system,
|
|
d@0
|
72 such as GNU/Linux, and we describe this case in the first section below,
|
|
d@0
|
73 including the use of special configuration options to e.g. install
|
|
d@0
|
74 different precisions or exploit optimizations for particular
|
|
d@0
|
75 architectures (e.g. SIMD). Compilation on non-Unix systems is a more
|
|
d@0
|
76 manual process, but we outline the procedure in the second section. It
|
|
d@0
|
77 is also likely that pre-compiled binaries will be available for popular
|
|
d@0
|
78 systems.
|
|
d@0
|
79
|
|
d@0
|
80 <p>Finally, we describe how you can customize FFTW for particular needs by
|
|
d@0
|
81 generating <em>codelets</em> for fast transforms of sizes not supported
|
|
d@0
|
82 efficiently by the standard FFTW distribution.
|
|
d@0
|
83 <a name="index-codelet-361"></a>
|
|
d@0
|
84
|
|
d@0
|
85 <ul class="menu">
|
|
d@0
|
86 <li><a accesskey="1" href="Installation-on-Unix.html#Installation-on-Unix">Installation on Unix</a>
|
|
d@0
|
87 <li><a accesskey="2" href="Installation-on-non_002dUnix-systems.html#Installation-on-non_002dUnix-systems">Installation on non-Unix systems</a>
|
|
d@0
|
88 <li><a accesskey="3" href="Cycle-Counters.html#Cycle-Counters">Cycle Counters</a>
|
|
d@0
|
89 <li><a accesskey="4" href="Generating-your-own-code.html#Generating-your-own-code">Generating your own code</a>
|
|
d@0
|
90 </ul>
|
|
d@0
|
91
|
|
d@0
|
92 <!-- -->
|
|
d@0
|
93 </body></html>
|
|
d@0
|
94
|
