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Matteo Frigo was supported in part by the Special Research Program SFB cannam@95: F011 “AURORA” of the Austrian Science Fund FWF and by MIT Lincoln cannam@95: Laboratory. For previous versions of FFTW, he was supported in part by the cannam@95: Defense Advanced Research Projects Agency (DARPA), under Grants cannam@95: N00014-94-1-0985 and F30602-97-1-0270, and by a Digital Equipment cannam@95: Corporation Fellowship. cannam@95: cannam@95:
Steven G. Johnson was supported in part by a Dept. of Defense NDSEG cannam@95: Fellowship, an MIT Karl Taylor Compton Fellowship, and by the Materials cannam@95: Research Science and Engineering Center program of the National Science cannam@95: Foundation under award DMR-9400334. cannam@95: cannam@95:
Code for the Cell Broadband Engine was graciously donated to the FFTW cannam@95: project by the IBM Austin Research Lab and included in fftw-3.2. (This cannam@95: code was removed in fftw-3.3.) cannam@95: cannam@95:
Code for the MIPS paired-single SIMD support was graciously donated to cannam@95: the FFTW project by CodeSourcery, Inc. cannam@95: cannam@95:
We are grateful to Sun Microsystems Inc. for its donation of a cannam@95: cluster of 9 8-processor Ultra HPC 5000 SMPs (24 Gflops peak). These cannam@95: machines served as the primary platform for the development of early cannam@95: versions of FFTW. cannam@95: cannam@95:
We thank Intel Corporation for donating a four-processor Pentium Pro cannam@95: machine. We thank the GNU/Linux community for giving us a decent OS to cannam@95: run on that machine. cannam@95: cannam@95:
We are thankful to the AMD corporation for donating an AMD Athlon XP 1700+ cannam@95: computer to the FFTW project. cannam@95: cannam@95:
We thank the Compaq/HP testdrive program and VA Software Corporation cannam@95: (SourceForge.net) for providing remote access to machines that were used cannam@95: to test FFTW. cannam@95: cannam@95:
The genfft suite of code generators was written using Objective
cannam@95: Caml, a dialect of ML. Objective Caml is a small and elegant language
cannam@95: developed by Xavier Leroy. The implementation is available from
cannam@95: http://caml.inria.fr/. In previous
cannam@95: releases of FFTW, genfft was written in Caml Light, by the same
cannam@95: authors. An even earlier implementation of genfft was written in
cannam@95: Scheme, but Caml is definitely better for this kind of application.
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FFTW uses many tools from the GNU project, including automake,
cannam@95: texinfo, and libtool.
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Prof. Charles E. Leiserson of MIT provided continuous support and cannam@95: encouragement. This program would not exist without him. Charles also cannam@95: proposed the name “codelets” for the basic FFT blocks. cannam@95: cannam@95: cannam@95:
Prof. John D. Joannopoulos of MIT demonstrated continuing tolerance of cannam@95: Steven's “extra-curricular” computer-science activities, as well as cannam@95: remarkable creativity in working them into his grant proposals. cannam@95: Steven's physics degree would not exist without him. cannam@95: cannam@95:
Franz Franchetti wrote SIMD extensions to FFTW 2, which eventually cannam@95: led to the SIMD support in FFTW 3. cannam@95: cannam@95:
Stefan Kral wrote most of the K7 code generator distributed with FFTW cannam@95: 3.0.x and 3.1.x. cannam@95: cannam@95:
Andrew Sterian contributed the Windows timing code in FFTW 2. cannam@95: cannam@95:
Didier Miras reported a bug in the test procedure used in FFTW 1.2. We cannam@95: now use a completely different test algorithm by Funda Ergun that does cannam@95: not require a separate FFT program to compare against. cannam@95: cannam@95:
Wolfgang Reimer contributed the Pentium cycle counter and a few fixes cannam@95: that help portability. cannam@95: cannam@95:
Ming-Chang Liu uncovered a well-hidden bug in the complex transforms of cannam@95: FFTW 2.0 and supplied a patch to correct it. cannam@95: cannam@95:
The FFTW FAQ was written in bfnn (Bizarre Format With No Name)
cannam@95: and formatted using the tools developed by Ian Jackson for the Linux
cannam@95: FAQ.
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We are especially thankful to all of our users for their cannam@95: continuing support, feedback, and interest during our development of cannam@95: FFTW. cannam@95: cannam@95: cannam@95: