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annotate src/fftw-3.3.5/README @ 83:ae30d91d2ffe

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Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
author Chris Cannam
date Fri, 07 Feb 2020 11:51:13 +0000
parents 2cd0e3b3e1fd
children
rev   line source
Chris@42 1 FFTW is a free collection of fast C routines for computing the
Chris@42 2 Discrete Fourier Transform in one or more dimensions. It includes
Chris@42 3 complex, real, symmetric, and parallel transforms, and can handle
Chris@42 4 arbitrary array sizes efficiently. FFTW is typically faster than
Chris@42 5 other publically-available FFT implementations, and is even
Chris@42 6 competitive with vendor-tuned libraries. (See our web page
Chris@42 7 http://fftw.org/ for extensive benchmarks.) To achieve this
Chris@42 8 performance, FFTW uses novel code-generation and runtime
Chris@42 9 self-optimization techniques (along with many other tricks).
Chris@42 10
Chris@42 11 The doc/ directory contains the manual in texinfo, PDF, info, and HTML
Chris@42 12 formats. Frequently asked questions and answers can be found in the
Chris@42 13 doc/FAQ/ directory in ASCII and HTML.
Chris@42 14
Chris@42 15 For a quick introduction to calling FFTW, see the "Tutorial" section
Chris@42 16 of the manual.
Chris@42 17
Chris@42 18 INSTALLATION
Chris@42 19 ------------
Chris@42 20
Chris@42 21 INSTALLATION FROM AN OFFICIAL RELEASE:
Chris@42 22
Chris@42 23 Please read chapter 10 "Installation and Customization" of the manual.
Chris@42 24 In short:
Chris@42 25
Chris@42 26 ./configure
Chris@42 27 make
Chris@42 28 make install
Chris@42 29
Chris@42 30 INSTALLATION FROM THE GIT REPOSITORY:
Chris@42 31
Chris@42 32 First, install these programs:
Chris@42 33
Chris@42 34 ocaml, ocamlbuild, autoconf, automake, indent, and libtool,
Chris@42 35
Chris@42 36 Then, execute
Chris@42 37
Chris@42 38 sh bootstrap.sh
Chris@42 39 make
Chris@42 40
Chris@42 41 The bootstrap.sh script runs configure directly, but if you need to
Chris@42 42 re-run configure, you must pass the --enable-maintainer-mode flag:
Chris@42 43
Chris@42 44 ./configure --enable-maintainer-mode [OTHER CONFIGURE FLAGS]
Chris@42 45
Chris@42 46 CONTACTS
Chris@42 47 --------
Chris@42 48
Chris@42 49 FFTW was written by Matteo Frigo and Steven G. Johnson. You can
Chris@42 50 contact them at fftw@fftw.org. The latest version of FFTW,
Chris@42 51 benchmarks, links, and other information can be found at the FFTW home
Chris@42 52 page (http://www.fftw.org). You can also sign up to the fftw-announce
Chris@42 53 Google group to receive (infrequent) updates and information about new
Chris@42 54 releases.