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1 <html lang="en">
2 <head>
3 <title>Acknowledgments - FFTW 3.3.3</title>
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11 <!--
12 This manual is for FFTW
13 (version 3.3.3, 25 November 2012).
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15 Copyright (C) 2003 Matteo Frigo.
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17 Copyright (C) 2003 Massachusetts Institute of Technology.
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48 <a name="Acknowledgments"></a>
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55
56 <h2 class="chapter">11 Acknowledgments</h2>
57
58 <p>Matteo Frigo was supported in part by the Special Research Program SFB
59 F011 &ldquo;AURORA&rdquo; of the Austrian Science Fund FWF and by MIT Lincoln
60 Laboratory. For previous versions of FFTW, he was supported in part by the
61 Defense Advanced Research Projects Agency (DARPA), under Grants
62 N00014-94-1-0985 and F30602-97-1-0270, and by a Digital Equipment
63 Corporation Fellowship.
64
65 <p>Steven G. Johnson was supported in part by a Dept. of Defense NDSEG
66 Fellowship, an MIT Karl Taylor Compton Fellowship, and by the Materials
67 Research Science and Engineering Center program of the National Science
68 Foundation under award DMR-9400334.
69
70 <p>Code for the Cell Broadband Engine was graciously donated to the FFTW
71 project by the IBM Austin Research Lab and included in fftw-3.2. (This
72 code was removed in fftw-3.3.)
73
74 <p>Code for the MIPS paired-single SIMD support was graciously donated to
75 the FFTW project by CodeSourcery, Inc.
76
77 <p>We are grateful to Sun Microsystems Inc. for its donation of a
78 cluster of 9 8-processor Ultra HPC 5000 SMPs (24 Gflops peak). These
79 machines served as the primary platform for the development of early
80 versions of FFTW.
81
82 <p>We thank Intel Corporation for donating a four-processor Pentium Pro
83 machine. We thank the GNU/Linux community for giving us a decent OS to
84 run on that machine.
85
86 <p>We are thankful to the AMD corporation for donating an AMD Athlon XP 1700+
87 computer to the FFTW project.
88
89 <p>We thank the Compaq/HP testdrive program and VA Software Corporation
90 (SourceForge.net) for providing remote access to machines that were used
91 to test FFTW.
92
93 <p>The <code>genfft</code> suite of code generators was written using Objective
94 Caml, a dialect of ML. Objective Caml is a small and elegant language
95 developed by Xavier Leroy. The implementation is available from
96 <a href="http://caml.inria.fr/"><code>http://caml.inria.fr/</code></a>. In previous
97 releases of FFTW, <code>genfft</code> was written in Caml Light, by the same
98 authors. An even earlier implementation of <code>genfft</code> was written in
99 Scheme, but Caml is definitely better for this kind of application.
100 <a name="index-Caml-627"></a><a name="index-LISP-628"></a>
101
102 <p>FFTW uses many tools from the GNU project, including <code>automake</code>,
103 <code>texinfo</code>, and <code>libtool</code>.
104
105 <p>Prof. Charles E. Leiserson of MIT provided continuous support and
106 encouragement. This program would not exist without him. Charles also
107 proposed the name &ldquo;codelets&rdquo; for the basic FFT blocks.
108 <a name="index-codelet-629"></a>
109
110 <p>Prof. John D. Joannopoulos of MIT demonstrated continuing tolerance of
111 Steven's &ldquo;extra-curricular&rdquo; computer-science activities, as well as
112 remarkable creativity in working them into his grant proposals.
113 Steven's physics degree would not exist without him.
114
115 <p>Franz Franchetti wrote SIMD extensions to FFTW 2, which eventually
116 led to the SIMD support in FFTW 3.
117
118 <p>Stefan Kral wrote most of the K7 code generator distributed with FFTW
119 3.0.x and 3.1.x.
120
121 <p>Andrew Sterian contributed the Windows timing code in FFTW 2.
122
123 <p>Didier Miras reported a bug in the test procedure used in FFTW 1.2. We
124 now use a completely different test algorithm by Funda Ergun that does
125 not require a separate FFT program to compare against.
126
127 <p>Wolfgang Reimer contributed the Pentium cycle counter and a few fixes
128 that help portability.
129
130 <p>Ming-Chang Liu uncovered a well-hidden bug in the complex transforms of
131 FFTW 2.0 and supplied a patch to correct it.
132
133 <p>The FFTW FAQ was written in <code>bfnn</code> (Bizarre Format With No Name)
134 and formatted using the tools developed by Ian Jackson for the Linux
135 FAQ.
136
137 <p><em>We are especially thankful to all of our users for their
138 continuing support, feedback, and interest during our development of
139 FFTW.</em>
140
141 </body></html>
142