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Current fftw source
author Chris Cannam <cannam@all-day-breakfast.com>
date Tue, 18 Oct 2016 13:40:26 +0100
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cannam@127 3 <!-- This manual is for FFTW
cannam@127 4 (version 3.3.5, 30 July 2016).
cannam@127 5
cannam@127 6 Copyright (C) 2003 Matteo Frigo.
cannam@127 7
cannam@127 8 Copyright (C) 2003 Massachusetts Institute of Technology.
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cannam@127 10 Permission is granted to make and distribute verbatim copies of this
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cannam@127 24 <head>
cannam@127 25 <title>FFTW 3.3.5: Acknowledgments</title>
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cannam@127 71 <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
cannam@127 72 <a name="Acknowledgments"></a>
cannam@127 73 <div class="header">
cannam@127 74 <p>
cannam@127 75 Next: <a href="License-and-Copyright.html#License-and-Copyright" accesskey="n" rel="next">License and Copyright</a>, Previous: <a href="Installation-and-Customization.html#Installation-and-Customization" accesskey="p" rel="prev">Installation and Customization</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>
cannam@127 76 </div>
cannam@127 77 <hr>
cannam@127 78 <a name="Acknowledgments-1"></a>
cannam@127 79 <h2 class="chapter">11 Acknowledgments</h2>
cannam@127 80
cannam@127 81 <p>Matteo Frigo was supported in part by the Special Research Program SFB
cannam@127 82 F011 &ldquo;AURORA&rdquo; of the Austrian Science Fund FWF and by MIT Lincoln
cannam@127 83 Laboratory. For previous versions of FFTW, he was supported in part by the
cannam@127 84 Defense Advanced Research Projects Agency (DARPA), under Grants
cannam@127 85 N00014-94-1-0985 and F30602-97-1-0270, and by a Digital Equipment
cannam@127 86 Corporation Fellowship.
cannam@127 87 </p>
cannam@127 88 <p>Steven G. Johnson was supported in part by a Dept.&nbsp;of Defense NDSEG
cannam@127 89 Fellowship, an MIT Karl Taylor Compton Fellowship, and by the Materials
cannam@127 90 Research Science and Engineering Center program of the National Science
cannam@127 91 Foundation under award DMR-9400334.
cannam@127 92 </p>
cannam@127 93 <p>Code for the Cell Broadband Engine was graciously donated to the FFTW
cannam@127 94 project by the IBM Austin Research Lab and included in fftw-3.2. (This
cannam@127 95 code was removed in fftw-3.3.)
cannam@127 96 </p>
cannam@127 97 <p>Code for the MIPS paired-single SIMD support was graciously donated to
cannam@127 98 the FFTW project by CodeSourcery, Inc.
cannam@127 99 </p>
cannam@127 100 <p>We are grateful to Sun Microsystems Inc.&nbsp;for its donation of a
cannam@127 101 cluster of 9 8-processor Ultra HPC 5000 SMPs (24 Gflops peak). These
cannam@127 102 machines served as the primary platform for the development of early
cannam@127 103 versions of FFTW.
cannam@127 104 </p>
cannam@127 105 <p>We thank Intel Corporation for donating a four-processor Pentium Pro
cannam@127 106 machine. We thank the GNU/Linux community for giving us a decent OS to
cannam@127 107 run on that machine.
cannam@127 108 </p>
cannam@127 109 <p>We are thankful to the AMD corporation for donating an AMD Athlon XP 1700+
cannam@127 110 computer to the FFTW project.
cannam@127 111 </p>
cannam@127 112 <p>We thank the Compaq/HP testdrive program and VA Software Corporation
cannam@127 113 (SourceForge.net) for providing remote access to machines that were used
cannam@127 114 to test FFTW.
cannam@127 115 </p>
cannam@127 116 <p>The <code>genfft</code> suite of code generators was written using Objective
cannam@127 117 Caml, a dialect of ML. Objective Caml is a small and elegant language
cannam@127 118 developed by Xavier Leroy. The implementation is available from
cannam@127 119 <a href="http://caml.inria.fr/"><code>http://caml.inria.fr/</code></a>. In previous
cannam@127 120 releases of FFTW, <code>genfft</code> was written in Caml Light, by the same
cannam@127 121 authors. An even earlier implementation of <code>genfft</code> was written in
cannam@127 122 Scheme, but Caml is definitely better for this kind of application.
cannam@127 123 <a name="index-Caml-1"></a>
cannam@127 124 <a name="index-LISP"></a>
cannam@127 125 </p>
cannam@127 126
cannam@127 127 <p>FFTW uses many tools from the GNU project, including <code>automake</code>,
cannam@127 128 <code>texinfo</code>, and <code>libtool</code>.
cannam@127 129 </p>
cannam@127 130 <p>Prof.&nbsp;Charles E.&nbsp;Leiserson of MIT provided continuous support and
cannam@127 131 encouragement. This program would not exist without him. Charles also
cannam@127 132 proposed the name &ldquo;codelets&rdquo; for the basic FFT blocks.
cannam@127 133 <a name="index-codelet-3"></a>
cannam@127 134 </p>
cannam@127 135
cannam@127 136 <p>Prof.&nbsp;John D.&nbsp;Joannopoulos of MIT demonstrated continuing tolerance of
cannam@127 137 Steven&rsquo;s &ldquo;extra-curricular&rdquo; computer-science activities, as well as
cannam@127 138 remarkable creativity in working them into his grant proposals.
cannam@127 139 Steven&rsquo;s physics degree would not exist without him.
cannam@127 140 </p>
cannam@127 141 <p>Franz Franchetti wrote SIMD extensions to FFTW 2, which eventually
cannam@127 142 led to the SIMD support in FFTW 3.
cannam@127 143 </p>
cannam@127 144 <p>Stefan Kral wrote most of the K7 code generator distributed with FFTW
cannam@127 145 3.0.x and 3.1.x.
cannam@127 146 </p>
cannam@127 147 <p>Andrew Sterian contributed the Windows timing code in FFTW 2.
cannam@127 148 </p>
cannam@127 149 <p>Didier Miras reported a bug in the test procedure used in FFTW 1.2. We
cannam@127 150 now use a completely different test algorithm by Funda Ergun that does
cannam@127 151 not require a separate FFT program to compare against.
cannam@127 152 </p>
cannam@127 153 <p>Wolfgang Reimer contributed the Pentium cycle counter and a few fixes
cannam@127 154 that help portability.
cannam@127 155 </p>
cannam@127 156 <p>Ming-Chang Liu uncovered a well-hidden bug in the complex transforms of
cannam@127 157 FFTW 2.0 and supplied a patch to correct it.
cannam@127 158 </p>
cannam@127 159 <p>The FFTW FAQ was written in <code>bfnn</code> (Bizarre Format With No Name)
cannam@127 160 and formatted using the tools developed by Ian Jackson for the Linux
cannam@127 161 FAQ.
cannam@127 162 </p>
cannam@127 163 <p><em>We are especially thankful to all of our users for their
cannam@127 164 continuing support, feedback, and interest during our development of
cannam@127 165 FFTW.</em>
cannam@127 166 </p>
cannam@127 167 <hr>
cannam@127 168 <div class="header">
cannam@127 169 <p>
cannam@127 170 Next: <a href="License-and-Copyright.html#License-and-Copyright" accesskey="n" rel="next">License and Copyright</a>, Previous: <a href="Installation-and-Customization.html#Installation-and-Customization" accesskey="p" rel="prev">Installation and Customization</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>
cannam@127 171 </div>
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