[4a53d15] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY fftw-download-http "http://www.fftw.org/fftw-&fftw-version;.tar.gz">
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| 8 | <!ENTITY fftw-download-ftp "ftp://ftp.fftw.org/pub/fftw/fftw-&fftw-version;.tar.gz ">
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| 9 | <!ENTITY fftw-md5sum "927e481edbb32575397eb3d62535a856">
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| 10 | <!ENTITY fftw-size "4.0 MB">
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| 11 | <!ENTITY fftw-buildsize "59 MB (with tests)">
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| 12 | <!ENTITY fftw-time "0.8 SBU (with tests)">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="fftw" xreflabel="fftw-&fftw-version;">
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| 16 | <?dbhtml filename="fftw.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>fftw-&fftw-version;</title>
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| 24 |
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| 25 | <indexterm zone="fftw">
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| 26 | <primary sortas="a-fftw">fftw</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to fftw</title>
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| 31 |
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| 32 | <para>
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| 33 | FFTW is a C subroutine library for computing the discrete Fourier
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| 34 | transform (DFT) in one or more dimensions, of arbitrary input size, and
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| 35 | of both real and complex data (as well as of even/odd data, i.e. the
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| 36 | discrete cosine/sine transforms or DCT/DST).
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| 37 | </para>
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| 38 |
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| 39 | &lfs80_checked;
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| 40 |
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| 41 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 42 | <itemizedlist spacing="compact">
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| 43 | <listitem>
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| 44 | <para>
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| 45 | Download (HTTP): <ulink url="&fftw-download-http;"/>
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| 46 | </para>
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| 47 | </listitem>
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| 48 | <listitem>
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| 49 | <para>
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| 50 | Download (FTP): <ulink url="&fftw-download-ftp;"/>
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| 51 | </para>
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| 52 | </listitem>
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| 53 | <listitem>
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| 54 | <para>
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| 55 | Download MD5 sum: &fftw-md5sum;
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| 56 | </para>
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| 57 | </listitem>
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| 58 | <listitem>
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| 59 | <para>
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| 60 | Download size: &fftw-size;
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| 61 | </para>
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| 62 | </listitem>
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| 63 | <listitem>
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| 64 | <para>
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| 65 | Estimated disk space required: &fftw-buildsize;
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| 66 | </para>
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| 67 | </listitem>
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| 68 | <listitem>
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| 69 | <para>
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| 70 | Estimated build time: &fftw-time;
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| 71 | </para>
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| 72 | </listitem>
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| 73 | </itemizedlist>
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| 74 |
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| 75 | <para condition="html" role="usernotes">
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| 76 | User Notes: <ulink url="&blfs-wiki;/fftw"/>
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| 77 | </para>
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| 78 |
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| 79 | </sect2>
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| 80 |
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| 81 | <sect2 role="installation">
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| 82 | <title>Installation of fftw</title>
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| 83 |
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| 84 | <para>
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| 85 | Install <application>fftw</application> by running the following commands:
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| 86 | </para>
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| 87 |
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| 88 | <screen><userinput>/configure --prefix=/usr --enable-shared --enable-threads &&
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| 89 | make</userinput></screen>
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| 90 |
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| 91 | <para>To test the results, issue: <command>make check</command>.</para>
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| 92 |
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| 93 | <para>
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| 94 | Now, as the <systemitem class="username">root</systemitem> user:
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| 95 | </para>
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| 96 |
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| 97 | <screen role="root"><userinput>make install</userinput></screen>
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| 98 | </sect2>
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| 99 |
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[7f7e7f6] | 100 | <sect2 role="commands">
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| 101 | <title>Command Explanations</title>
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| 102 |
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| 103 | <para>
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| 104 | <command>--enable-shared --disable-static</command>: Use shared libs
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| 105 | instead of static libs.
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| 106 | </para>
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| 107 |
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| 108 | <para>
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| 109 | <command>--enable-threads</command>: This enables <filename
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| 110 | class="libraryfile"> libfftw3_threads.so</filename> to be compiled.
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| 111 | It is used by e.g. the <application>gimp</application> plugin from
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| 112 | <ulink url="http://gmic.eu/">G'MIC</ulink>.
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| 113 | </para>
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| 114 |
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| 115 | </sect2>
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| 116 |
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[4a53d15] | 117 | <sect2 role="content">
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| 118 | <title>Contents</title>
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| 119 |
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| 120 | <segmentedlist>
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| 121 | <segtitle>Installed Programs</segtitle>
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| 122 | <segtitle>Installed Library</segtitle>
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| 123 | <segtitle>Installed Directories</segtitle>
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| 124 |
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| 125 | <seglistitem>
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| 126 | <seg>
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| 127 | fftw-wisdom and fftw-wisdom-to-conf
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| 128 | </seg>
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| 129 | <seg>
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| 130 | libfftw3.so and libfftw3_threads.so
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| 131 | </seg>
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| 132 | <seg>
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| 133 | None
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| 134 | </seg>
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| 135 | </seglistitem>
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| 136 | </segmentedlist>
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| 137 |
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| 138 | <variablelist>
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| 139 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 140 | <?dbfo list-presentation="list"?>
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| 141 | <?dbhtml list-presentation="table"?>
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| 142 |
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| 143 | <varlistentry id="fftw-wisdom">
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| 144 | <term><filename>fftw-wisdom</filename></term>
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| 145 | <listitem>
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| 146 | <para>
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| 147 | is a utility to generate FFTW wisdom files, which contain saved
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| 148 | information about how to optimally compute (Fourier) transforms of
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| 149 | various sizes.
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| 150 | </para>
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| 151 | <indexterm zone="fftw fftw-wisdom">
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| 152 | <primary sortas="b-fftw-wisdom">fftw-wisdom</primary>
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| 153 | </indexterm>
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| 154 | </listitem>
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| 155 | </varlistentry>
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| 156 |
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| 157 | <varlistentry id="fftw-wisdom-to-conf">
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| 158 | <term><filename>fftw-wisdom-to-conf</filename></term>
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| 159 | <listitem>
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| 160 | <para>
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| 161 | is a utility to generate C configuration routines from FFTW wisdom
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| 162 | files, where the latter contain saved information about how to
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| 163 | optimally compute (Fourier) transforms of various sizes.
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| 164 | </para>
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| 165 | <indexterm zone="fftw fftw-wisdom-to-conf">
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| 166 | <primary sortas="b-fftw-wisdom-to-conf">fftw-wisdom-to-conf</primary>
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| 167 | </indexterm>
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| 168 | </listitem>
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| 169 | </varlistentry>
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| 170 |
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| 171 | </variablelist>
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| 172 |
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| 173 | </sect2>
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| 174 |
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| 175 | </sect1>
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