diff src/fftw-3.3.8/doc/html/Installation-and-Customization.html @ 82:d0c2a83c1364

Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam
date Tue, 19 Nov 2019 14:52:55 +0000
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- This manual is for FFTW
+(version 3.3.8, 24 May 2018).
+
+Copyright (C) 2003 Matteo Frigo.
+
+Copyright (C) 2003 Massachusetts Institute of Technology.
+
+Permission is granted to make and distribute verbatim copies of this
+manual provided the copyright notice and this permission notice are
+preserved on all copies.
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the
+entire resulting derived work is distributed under the terms of a
+permission notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation
+approved by the Free Software Foundation. -->
+<!-- Created by GNU Texinfo 6.3, http://www.gnu.org/software/texinfo/ -->
+<head>
+<title>FFTW 3.3.8: Installation and Customization</title>
+
+<meta name="description" content="FFTW 3.3.8: Installation and Customization">
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+<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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+<link href="Installation-on-Unix.html#Installation-on-Unix" rel="next" title="Installation on Unix">
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+<a name="Installation-and-Customization"></a>
+<div class="header">
+<p>
+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>
+</div>
+<hr>
+<a name="Installation-and-Customization-1"></a>
+<h2 class="chapter">10 Installation and Customization</h2>
+<a name="index-installation"></a>
+
+<p>This chapter describes the installation and customization of FFTW, the
+latest version of which may be downloaded from
+<a href="http://www.fftw.org">the FFTW home page</a>.
+</p>
+<p>In principle, FFTW should work on any system with an ANSI C compiler
+(<code>gcc</code> is fine).  However, planner time is drastically reduced if
+FFTW can exploit a hardware cycle counter; FFTW comes with cycle-counter
+support for all modern general-purpose CPUs, but you may need to add a
+couple of lines of code if your compiler is not yet supported
+(see <a href="Cycle-Counters.html#Cycle-Counters">Cycle Counters</a>).  (On Unix, there will be a warning at the end
+of the <code>configure</code> output if no cycle counter is found.)
+<a name="index-cycle-counter"></a>
+<a name="index-compiler-1"></a>
+<a name="index-portability-9"></a>
+</p>
+
+<p>Installation of FFTW is simplest if you have a Unix or a GNU system,
+such as GNU/Linux, and we describe this case in the first section below,
+including the use of special configuration options to e.g. install
+different precisions or exploit optimizations for particular
+architectures (e.g. SIMD).  Compilation on non-Unix systems is a more
+manual process, but we outline the procedure in the second section.  It
+is also likely that pre-compiled binaries will be available for popular
+systems.
+</p>
+<p>Finally, we describe how you can customize FFTW for particular needs by
+generating <em>codelets</em> for fast transforms of sizes not supported
+efficiently by the standard FFTW distribution.
+<a name="index-codelet-1"></a>
+</p>
+<table class="menu" border="0" cellspacing="0">
+<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">
+</td></tr>
+<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">
+</td></tr>
+<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">
+</td></tr>
+<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">
+</td></tr>
+</table>
+
+
+<hr>
+<div class="header">
+<p>
+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>
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