Mercurial > hg > batch-feature-extraction-tool
view Lib/fftw-3.2.1/doc/html/Data-Alignment.html @ 9:262e084a15a9
Vectorised everything and made use of unique_ptr so there should be no more memory leaks. Hurrah for RAII
author | Geogaddi\David <d.m.ronan@qmul.ac.uk> |
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date | Wed, 12 Aug 2015 22:25:06 +0100 |
parents | 25bf17994ef1 |
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<html lang="en"> <head> <title>Data Alignment - 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="up" href="Other-Important-Topics.html#Other-Important-Topics" title="Other Important Topics"> <link rel="prev" href="Other-Important-Topics.html#Other-Important-Topics" title="Other Important Topics"> <link rel="next" href="Multi_002ddimensional-Array-Format.html#Multi_002ddimensional-Array-Format" title="Multi-dimensional Array Format"> <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="Data-Alignment"></a> Next: <a rel="next" accesskey="n" href="Multi_002ddimensional-Array-Format.html#Multi_002ddimensional-Array-Format">Multi-dimensional Array Format</a>, Previous: <a rel="previous" accesskey="p" href="Other-Important-Topics.html#Other-Important-Topics">Other Important Topics</a>, Up: <a rel="up" accesskey="u" href="Other-Important-Topics.html#Other-Important-Topics">Other Important Topics</a> <hr> </div> <h3 class="section">3.1 Data Alignment</h3> <p><a name="index-alignment-101"></a> <ul class="menu"> <li><a accesskey="1" href="SIMD-alignment-and-fftw_005fmalloc.html#SIMD-alignment-and-fftw_005fmalloc">SIMD alignment and fftw_malloc</a> <li><a accesskey="2" href="Stack-alignment-on-x86.html#Stack-alignment-on-x86">Stack alignment on x86</a> </ul> <p>In order to get the best performance from FFTW, one needs to be somewhat aware of two problems related to data alignment on x86 (Pentia) architectures: alignment of allocated arrays (for use with SIMD acceleration), and alignment of the stack. <!-- =========> --> </body></html>