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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- This manual is for FFTW
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(version 3.3.10, 10 December 2020).
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Copyright (C) 2003 Matteo Frigo.
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Copyright (C) 2003 Massachusetts Institute of Technology.
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Permission is granted to make and distribute verbatim copies of this
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manual provided the copyright notice and this permission notice are
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preserved on all copies.
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Permission is granted to copy and distribute modified versions of this
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manual under the conditions for verbatim copying, provided that the
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entire resulting derived work is distributed under the terms of a
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permission notice identical to this one.
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Permission is granted to copy and distribute translations of this manual
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into another language, under the above conditions for modified versions,
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except that this permission notice may be stated in a translation
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approved by the Free Software Foundation. -->
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<head>
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<title>Acknowledgments (FFTW 3.3.10)</title>
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<meta name="description" content="Acknowledgments (FFTW 3.3.10)">
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<link href="index.html" rel="start" title="Top">
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="index.html" rel="up" title="Top">
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<link href="License-and-Copyright.html" rel="next" title="License and Copyright">
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</head>
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<body lang="en">
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<span id="Acknowledgments"></span><div class="header">
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<p>
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Next: <a href="License-and-Copyright.html" accesskey="n" rel="next">License and Copyright</a>, Previous: <a href="Installation-and-Customization.html" accesskey="p" rel="prev">Installation and Customization</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</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>
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</div>
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<hr>
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<span id="Acknowledgments-1"></span><h2 class="chapter">11 Acknowledgments</h2>
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<p>Matteo Frigo was supported in part by the Special Research Program SFB
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F011 “AURORA” of the Austrian Science Fund FWF and by MIT Lincoln
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Laboratory. For previous versions of FFTW, he was supported in part by the
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Defense Advanced Research Projects Agency (DARPA), under Grants
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N00014-94-1-0985 and F30602-97-1-0270, and by a Digital Equipment
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Corporation Fellowship.
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</p>
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<p>Steven G. Johnson was supported in part by a Dept. of Defense NDSEG
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Fellowship, an MIT Karl Taylor Compton Fellowship, and by the Materials
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Research Science and Engineering Center program of the National Science
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Foundation under award DMR-9400334.
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</p>
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<p>Code for the Cell Broadband Engine was graciously donated to the FFTW
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project by the IBM Austin Research Lab and included in fftw-3.2. (This
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code was removed in fftw-3.3.)
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</p>
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<p>Code for the MIPS paired-single SIMD support was graciously donated to
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the FFTW project by CodeSourcery, Inc.
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</p>
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<p>We are grateful to Sun Microsystems Inc. for its donation of a
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cluster of 9 8-processor Ultra HPC 5000 SMPs (24 Gflops peak). These
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machines served as the primary platform for the development of early
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versions of FFTW.
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</p>
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<p>We thank Intel Corporation for donating a four-processor Pentium Pro
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machine. We thank the GNU/Linux community for giving us a decent OS to
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run on that machine.
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</p>
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<p>We are thankful to the AMD corporation for donating an AMD Athlon XP 1700+
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computer to the FFTW project.
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</p>
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<p>We thank the Compaq/HP testdrive program and VA Software Corporation
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(SourceForge.net) for providing remote access to machines that were used
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to test FFTW.
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</p>
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<p>The <code>genfft</code> suite of code generators was written using Objective
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Caml, a dialect of ML. Objective Caml is a small and elegant language
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developed by Xavier Leroy. The implementation is available from
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<a href="http://caml.inria.fr/"><code>http://caml.inria.fr/</code></a>. In previous
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releases of FFTW, <code>genfft</code> was written in Caml Light, by the same
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authors. An even earlier implementation of <code>genfft</code> was written in
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Scheme, but Caml is definitely better for this kind of application.
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<span id="index-Caml-1"></span>
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<span id="index-LISP"></span>
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</p>
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<p>FFTW uses many tools from the GNU project, including <code>automake</code>,
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<code>texinfo</code>, and <code>libtool</code>.
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</p>
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<p>Prof. Charles E. Leiserson of MIT provided continuous support and
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encouragement. This program would not exist without him. Charles also
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proposed the name “codelets” for the basic FFT blocks.
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<span id="index-codelet-3"></span>
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</p>
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<p>Prof. John D. Joannopoulos of MIT demonstrated continuing tolerance of
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Steven’s “extra-curricular” computer-science activities, as well as
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remarkable creativity in working them into his grant proposals.
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Steven’s physics degree would not exist without him.
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</p>
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<p>Franz Franchetti wrote SIMD extensions to FFTW 2, which eventually
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led to the SIMD support in FFTW 3.
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</p>
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<p>Stefan Kral wrote most of the K7 code generator distributed with FFTW
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3.0.x and 3.1.x.
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</p>
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<p>Andrew Sterian contributed the Windows timing code in FFTW 2.
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</p>
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<p>Didier Miras reported a bug in the test procedure used in FFTW 1.2. We
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now use a completely different test algorithm by Funda Ergun that does
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not require a separate FFT program to compare against.
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</p>
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<p>Wolfgang Reimer contributed the Pentium cycle counter and a few fixes
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that help portability.
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</p>
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<p>Ming-Chang Liu uncovered a well-hidden bug in the complex transforms of
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FFTW 2.0 and supplied a patch to correct it.
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</p>
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<p>The FFTW FAQ was written in <code>bfnn</code> (Bizarre Format With No Name)
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and formatted using the tools developed by Ian Jackson for the Linux
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FAQ.
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</p>
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<p><em>We are especially thankful to all of our users for their
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continuing support, feedback, and interest during our development of
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FFTW.</em>
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</p>
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<hr>
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<div class="header">
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<p>
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Next: <a href="License-and-Copyright.html" accesskey="n" rel="next">License and Copyright</a>, Previous: <a href="Installation-and-Customization.html" accesskey="p" rel="prev">Installation and Customization</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</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>
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</div>
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</body>
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</html>
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