Mercurial > hg > batch-feature-extraction-tool
diff Lib/fftw-3.2.1/doc/html/.svn/text-base/FFTW-on-the-Cell-Processor.html.svn-base @ 0:25bf17994ef1
First commit. VS2013, Codeblocks and Mac OSX configuration
author | Geogaddi\David <d.m.ronan@qmul.ac.uk> |
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date | Thu, 09 Jul 2015 01:12:16 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Lib/fftw-3.2.1/doc/html/.svn/text-base/FFTW-on-the-Cell-Processor.html.svn-base Thu Jul 09 01:12:16 2015 +0100 @@ -0,0 +1,86 @@ +<html lang="en"> +<head> +<title>FFTW on the Cell Processor - FFTW 3.2.1</title> +<meta http-equiv="Content-Type" content="text/html"> +<meta name="description" content="FFTW 3.2.1"> +<meta name="generator" content="makeinfo 4.8"> +<link title="Top" rel="start" href="index.html#Top"> +<link rel="prev" href="Multi_002dthreaded-FFTW.html#Multi_002dthreaded-FFTW" title="Multi-threaded FFTW"> +<link rel="next" href="Calling-FFTW-from-Fortran.html#Calling-FFTW-from-Fortran" title="Calling FFTW from Fortran"> +<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> +<!-- +This manual is for FFTW +(version 3.2.1, 5 February 2009). + +Copyright (C) 2003 Matteo Frigo. + +Copyright (C) 2003 Massachusetts Institute of Technology. + + Permission is granted to make and distribute verbatim copies of + this manual provided the copyright notice and this permission + notice are preserved on all copies. + + Permission is granted to copy and distribute modified versions of + this manual under the conditions for verbatim copying, provided + that the entire resulting derived work is distributed under the + terms of a permission notice identical to this one. + + Permission is granted to copy and distribute translations of this + manual into another language, under the above conditions for + modified versions, except that this permission notice may be + stated in a translation approved by the Free Software Foundation. + --> +<meta http-equiv="Content-Style-Type" content="text/css"> +<style type="text/css"><!-- + pre.display { font-family:inherit } + pre.format { font-family:inherit } + pre.smalldisplay { font-family:inherit; font-size:smaller } + pre.smallformat { font-family:inherit; font-size:smaller } + pre.smallexample { font-size:smaller } + pre.smalllisp { font-size:smaller } + span.sc { font-variant:small-caps } + span.roman { font-family:serif; font-weight:normal; } + span.sansserif { font-family:sans-serif; font-weight:normal; } +--></style> +</head> +<body> +<div class="node"> +<p> +<a name="FFTW-on-the-Cell-Processor"></a> +Next: <a rel="next" accesskey="n" href="Calling-FFTW-from-Fortran.html#Calling-FFTW-from-Fortran">Calling FFTW from Fortran</a>, +Previous: <a rel="previous" accesskey="p" href="Multi_002dthreaded-FFTW.html#Multi_002dthreaded-FFTW">Multi-threaded FFTW</a>, +Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a> +<hr> +</div> + +<h2 class="chapter">6 FFTW on the Cell Processor</h2> + +<p><a name="index-Cell-processor-329"></a> +Starting with version 3.2, FFTW contains specific support for the Cell +Broadband Engine (“Cell”) processor, graciously donated by the IBM +Austin Research Laboratory. + + <p>Cell consists of one PowerPC core (“PPE”) and of a number of +Synergistic Processing Elements (“SPE”) to which the PPE can +delegate computation. The IBM QS20 Cell blade offers 8 SPEs per Cell +chip. The Sony Playstation 3 contains 6 useable SPEs. + + <p>Currently, FFTW fully utilizes the SPEs for one- and multi-dimensional +complex FFTs of sizes that can be factored into small primes, both in +single and double precision. Transforms of real data use SPEs only +partially at this time. If FFTW cannot use the SPEs, it falls back to +a slower computation on the PPE. + + <p>FFTW is meant to use the SPEs transparently without user intervention. +However, certain caveats apply, which are discussed later in this +document. + +<ul class="menu"> +<li><a accesskey="1" href="Cell-Installation.html#Cell-Installation">Cell Installation</a> +<li><a accesskey="2" href="Cell-Caveats.html#Cell-Caveats">Cell Caveats</a> +<li><a accesskey="3" href="FFTW-Accuracy-on-Cell.html#FFTW-Accuracy-on-Cell">FFTW Accuracy on Cell</a> +</ul> + +<!-- --> +</body></html> +