mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-23 21:15:11 +00:00
106 lines
5 KiB
HTML
106 lines
5 KiB
HTML
<!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 3.3.10, 10 December 2020).
|
|
|
|
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 6.7, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<title>Installation and Supported Hardware/Software (FFTW 3.3.10)</title>
|
|
|
|
<meta name="description" content="Installation and Supported Hardware/Software (FFTW 3.3.10)">
|
|
<meta name="keywords" content="Installation and Supported Hardware/Software (FFTW 3.3.10)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<link href="index.html" rel="start" title="Top">
|
|
<link href="Concept-Index.html" rel="index" title="Concept Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Multi_002dthreaded-FFTW.html" rel="up" title="Multi-threaded FFTW">
|
|
<link href="Usage-of-Multi_002dthreaded-FFTW.html" rel="next" title="Usage of Multi-threaded FFTW">
|
|
<link href="Multi_002dthreaded-FFTW.html" rel="prev" title="Multi-threaded FFTW">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
kbd {font-style: oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
span.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<span id="Installation-and-Supported-Hardware_002fSoftware"></span><div class="header">
|
|
<p>
|
|
Next: <a href="Usage-of-Multi_002dthreaded-FFTW.html" accesskey="n" rel="next">Usage of Multi-threaded FFTW</a>, Previous: <a href="Multi_002dthreaded-FFTW.html" accesskey="p" rel="prev">Multi-threaded FFTW</a>, Up: <a href="Multi_002dthreaded-FFTW.html" accesskey="u" rel="up">Multi-threaded FFTW</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<span id="Installation-and-Supported-Hardware_002fSoftware-1"></span><h3 class="section">5.1 Installation and Supported Hardware/Software</h3>
|
|
|
|
<p>All of the FFTW threads code is located in the <code>threads</code>
|
|
subdirectory of the FFTW package. On Unix systems, the FFTW threads
|
|
libraries and header files can be automatically configured, compiled,
|
|
and installed along with the uniprocessor FFTW libraries simply by
|
|
including <code>--enable-threads</code> in the flags to the <code>configure</code>
|
|
script (see <a href="Installation-on-Unix.html">Installation on Unix</a>), or <code>--enable-openmp</code> to use
|
|
<a href="http://www.openmp.org">OpenMP</a> threads.
|
|
<span id="index-configure"></span>
|
|
</p>
|
|
|
|
<span id="index-portability-3"></span>
|
|
<span id="index-OpenMP"></span>
|
|
<p>The threads routines require your operating system to have some sort
|
|
of shared-memory threads support. Specifically, the FFTW threads
|
|
package works with POSIX threads (available on most Unix variants,
|
|
from GNU/Linux to MacOS X) and Win32 threads. OpenMP threads, which
|
|
are supported in many common compilers (e.g. gcc) are also supported,
|
|
and may give better performance on some systems. (OpenMP threads are
|
|
also useful if you are employing OpenMP in your own code, in order to
|
|
minimize conflicts between threading models.) If you have a
|
|
shared-memory machine that uses a different threads API, it should be
|
|
a simple matter of programming to include support for it; see the file
|
|
<code>threads/threads.c</code> for more detail.
|
|
</p>
|
|
<p>You can compile FFTW with <em>both</em> <code>--enable-threads</code> and
|
|
<code>--enable-openmp</code> at the same time, since they install libraries
|
|
with different names (‘<samp>fftw3_threads</samp>’ and ‘<samp>fftw3_omp</samp>’, as
|
|
described below). However, your programs may only link to <em>one</em>
|
|
of these two libraries at a time.
|
|
</p>
|
|
<p>Ideally, of course, you should also have multiple processors in order to
|
|
get any benefit from the threaded transforms.
|
|
</p>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|