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3 <title>Acknowledgments - FFTW 3.3.3</title>
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11 <!--
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12 This manual is for FFTW
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13 (version 3.3.3, 25 November 2012).
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14
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15 Copyright (C) 2003 Matteo Frigo.
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16
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17 Copyright (C) 2003 Massachusetts Institute of Technology.
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18
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19 Permission is granted to make and distribute verbatim copies of
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20 this manual provided the copyright notice and this permission
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21 notice are preserved on all copies.
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22
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23 Permission is granted to copy and distribute modified versions of
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24 this manual under the conditions for verbatim copying, provided
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25 that the entire resulting derived work is distributed under the
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26 terms of a permission notice identical to this one.
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27
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28 Permission is granted to copy and distribute translations of this
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29 manual into another language, under the above conditions for
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30 modified versions, except that this permission notice may be
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31 stated in a translation approved by the Free Software Foundation.
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46 <body>
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47 <div class="node">
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48 <a name="Acknowledgments"></a>
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49 <p>
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50 Next: <a rel="next" accesskey="n" href="License-and-Copyright.html#License-and-Copyright">License and Copyright</a>,
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51 Previous: <a rel="previous" accesskey="p" href="Installation-and-Customization.html#Installation-and-Customization">Installation and Customization</a>,
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52 Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
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53 <hr>
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54 </div>
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55
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56 <h2 class="chapter">11 Acknowledgments</h2>
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57
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58 <p>Matteo Frigo was supported in part by the Special Research Program SFB
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59 F011 “AURORA” of the Austrian Science Fund FWF and by MIT Lincoln
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60 Laboratory. For previous versions of FFTW, he was supported in part by the
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61 Defense Advanced Research Projects Agency (DARPA), under Grants
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62 N00014-94-1-0985 and F30602-97-1-0270, and by a Digital Equipment
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63 Corporation Fellowship.
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64
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65 <p>Steven G. Johnson was supported in part by a Dept. of Defense NDSEG
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66 Fellowship, an MIT Karl Taylor Compton Fellowship, and by the Materials
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67 Research Science and Engineering Center program of the National Science
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68 Foundation under award DMR-9400334.
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69
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70 <p>Code for the Cell Broadband Engine was graciously donated to the FFTW
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71 project by the IBM Austin Research Lab and included in fftw-3.2. (This
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72 code was removed in fftw-3.3.)
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73
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74 <p>Code for the MIPS paired-single SIMD support was graciously donated to
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75 the FFTW project by CodeSourcery, Inc.
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76
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77 <p>We are grateful to Sun Microsystems Inc. for its donation of a
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78 cluster of 9 8-processor Ultra HPC 5000 SMPs (24 Gflops peak). These
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79 machines served as the primary platform for the development of early
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80 versions of FFTW.
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81
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82 <p>We thank Intel Corporation for donating a four-processor Pentium Pro
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83 machine. We thank the GNU/Linux community for giving us a decent OS to
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84 run on that machine.
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85
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86 <p>We are thankful to the AMD corporation for donating an AMD Athlon XP 1700+
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87 computer to the FFTW project.
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88
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89 <p>We thank the Compaq/HP testdrive program and VA Software Corporation
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90 (SourceForge.net) for providing remote access to machines that were used
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91 to test FFTW.
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92
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93 <p>The <code>genfft</code> suite of code generators was written using Objective
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94 Caml, a dialect of ML. Objective Caml is a small and elegant language
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95 developed by Xavier Leroy. The implementation is available from
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96 <a href="http://caml.inria.fr/"><code>http://caml.inria.fr/</code></a>. In previous
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97 releases of FFTW, <code>genfft</code> was written in Caml Light, by the same
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98 authors. An even earlier implementation of <code>genfft</code> was written in
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99 Scheme, but Caml is definitely better for this kind of application.
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100 <a name="index-Caml-627"></a><a name="index-LISP-628"></a>
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101
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102 <p>FFTW uses many tools from the GNU project, including <code>automake</code>,
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103 <code>texinfo</code>, and <code>libtool</code>.
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104
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105 <p>Prof. Charles E. Leiserson of MIT provided continuous support and
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106 encouragement. This program would not exist without him. Charles also
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107 proposed the name “codelets” for the basic FFT blocks.
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108 <a name="index-codelet-629"></a>
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109
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110 <p>Prof. John D. Joannopoulos of MIT demonstrated continuing tolerance of
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111 Steven's “extra-curricular” computer-science activities, as well as
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112 remarkable creativity in working them into his grant proposals.
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113 Steven's physics degree would not exist without him.
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114
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115 <p>Franz Franchetti wrote SIMD extensions to FFTW 2, which eventually
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116 led to the SIMD support in FFTW 3.
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117
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118 <p>Stefan Kral wrote most of the K7 code generator distributed with FFTW
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119 3.0.x and 3.1.x.
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120
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121 <p>Andrew Sterian contributed the Windows timing code in FFTW 2.
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122
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123 <p>Didier Miras reported a bug in the test procedure used in FFTW 1.2. We
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124 now use a completely different test algorithm by Funda Ergun that does
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125 not require a separate FFT program to compare against.
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126
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127 <p>Wolfgang Reimer contributed the Pentium cycle counter and a few fixes
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128 that help portability.
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129
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130 <p>Ming-Chang Liu uncovered a well-hidden bug in the complex transforms of
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131 FFTW 2.0 and supplied a patch to correct it.
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132
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133 <p>The FFTW FAQ was written in <code>bfnn</code> (Bizarre Format With No Name)
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134 and formatted using the tools developed by Ian Jackson for the Linux
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135 FAQ.
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136
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137 <p><em>We are especially thankful to all of our users for their
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138 continuing support, feedback, and interest during our development of
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139 FFTW.</em>
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140
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141 </body></html>
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142
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