Chris@82: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> Chris@82: <html> Chris@82: <!-- This manual is for FFTW Chris@82: (version 3.3.8, 24 May 2018). Chris@82: Chris@82: Copyright (C) 2003 Matteo Frigo. Chris@82: Chris@82: Copyright (C) 2003 Massachusetts Institute of Technology. Chris@82: Chris@82: Permission is granted to make and distribute verbatim copies of this Chris@82: manual provided the copyright notice and this permission notice are Chris@82: preserved on all copies. Chris@82: Chris@82: Permission is granted to copy and distribute modified versions of this Chris@82: manual under the conditions for verbatim copying, provided that the Chris@82: entire resulting derived work is distributed under the terms of a Chris@82: permission notice identical to this one. Chris@82: Chris@82: Permission is granted to copy and distribute translations of this manual Chris@82: into another language, under the above conditions for modified versions, Chris@82: except that this permission notice may be stated in a translation Chris@82: approved by the Free Software Foundation. --> Chris@82: <!-- Created by GNU Texinfo 6.3, http://www.gnu.org/software/texinfo/ --> Chris@82: <head> Chris@82: <title>FFTW 3.3.8: Guru Interface</title> Chris@82: Chris@82: <meta name="description" content="FFTW 3.3.8: Guru Interface"> Chris@82: <meta name="keywords" content="FFTW 3.3.8: Guru Interface"> Chris@82: <meta name="resource-type" content="document"> Chris@82: <meta name="distribution" content="global"> Chris@82: <meta name="Generator" content="makeinfo"> Chris@82: <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> Chris@82: <link href="index.html#Top" rel="start" title="Top"> Chris@82: <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> Chris@82: <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> Chris@82: <link href="FFTW-Reference.html#FFTW-Reference" rel="up" title="FFTW Reference"> Chris@82: <link href="Interleaved-and-split-arrays.html#Interleaved-and-split-arrays" rel="next" title="Interleaved and split arrays"> Chris@82: <link href="Advanced-Real_002dto_002dreal-Transforms.html#Advanced-Real_002dto_002dreal-Transforms" rel="prev" title="Advanced Real-to-real Transforms"> Chris@82: <style type="text/css"> Chris@82: <!-- Chris@82: a.summary-letter {text-decoration: none} Chris@82: blockquote.indentedblock {margin-right: 0em} Chris@82: blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} Chris@82: blockquote.smallquotation {font-size: smaller} Chris@82: div.display {margin-left: 3.2em} Chris@82: div.example {margin-left: 3.2em} Chris@82: div.lisp {margin-left: 3.2em} Chris@82: div.smalldisplay {margin-left: 3.2em} Chris@82: div.smallexample {margin-left: 3.2em} Chris@82: div.smalllisp {margin-left: 3.2em} Chris@82: kbd {font-style: oblique} Chris@82: pre.display {font-family: inherit} Chris@82: pre.format {font-family: inherit} Chris@82: pre.menu-comment {font-family: serif} Chris@82: pre.menu-preformatted {font-family: serif} Chris@82: pre.smalldisplay {font-family: inherit; font-size: smaller} Chris@82: pre.smallexample {font-size: smaller} Chris@82: pre.smallformat {font-family: inherit; font-size: smaller} Chris@82: pre.smalllisp {font-size: smaller} Chris@82: span.nolinebreak {white-space: nowrap} Chris@82: span.roman {font-family: initial; font-weight: normal} Chris@82: span.sansserif {font-family: sans-serif; font-weight: normal} Chris@82: ul.no-bullet {list-style: none} Chris@82: --> Chris@82: </style> Chris@82: Chris@82: Chris@82: </head> Chris@82: Chris@82: <body lang="en"> Chris@82: <a name="Guru-Interface"></a> Chris@82: <div class="header"> Chris@82: <p> Chris@82: Next: <a href="New_002darray-Execute-Functions.html#New_002darray-Execute-Functions" accesskey="n" rel="next">New-array Execute Functions</a>, Previous: <a href="Advanced-Interface.html#Advanced-Interface" accesskey="p" rel="prev">Advanced Interface</a>, Up: <a href="FFTW-Reference.html#FFTW-Reference" accesskey="u" rel="up">FFTW Reference</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> Chris@82: </div> Chris@82: <hr> Chris@82: <a name="Guru-Interface-1"></a> Chris@82: <h3 class="section">4.5 Guru Interface</h3> Chris@82: <a name="index-guru-interface-2"></a> Chris@82: Chris@82: <p>The “guru” interface to FFTW is intended to expose as much as possible Chris@82: of the flexibility in the underlying FFTW architecture. It allows one Chris@82: to compute multi-dimensional “vectors” (loops) of multi-dimensional Chris@82: transforms, where each vector/transform dimension has an independent Chris@82: size and stride. Chris@82: <a name="index-vector"></a> Chris@82: One can also use more general complex-number formats, e.g. separate real Chris@82: and imaginary arrays. Chris@82: </p> Chris@82: <p>For those users who require the flexibility of the guru interface, it is Chris@82: important that they pay special attention to the documentation lest they Chris@82: shoot themselves in the foot. Chris@82: </p> Chris@82: <table class="menu" border="0" cellspacing="0"> Chris@82: <tr><td align="left" valign="top">• <a href="Interleaved-and-split-arrays.html#Interleaved-and-split-arrays" accesskey="1">Interleaved and split arrays</a>:</td><td> </td><td align="left" valign="top"> Chris@82: </td></tr> Chris@82: <tr><td align="left" valign="top">• <a href="Guru-vector-and-transform-sizes.html#Guru-vector-and-transform-sizes" accesskey="2">Guru vector and transform sizes</a>:</td><td> </td><td align="left" valign="top"> Chris@82: </td></tr> Chris@82: <tr><td align="left" valign="top">• <a href="Guru-Complex-DFTs.html#Guru-Complex-DFTs" accesskey="3">Guru Complex DFTs</a>:</td><td> </td><td align="left" valign="top"> Chris@82: </td></tr> Chris@82: <tr><td align="left" valign="top">• <a href="Guru-Real_002ddata-DFTs.html#Guru-Real_002ddata-DFTs" accesskey="4">Guru Real-data DFTs</a>:</td><td> </td><td align="left" valign="top"> Chris@82: </td></tr> Chris@82: <tr><td align="left" valign="top">• <a href="Guru-Real_002dto_002dreal-Transforms.html#Guru-Real_002dto_002dreal-Transforms" accesskey="5">Guru Real-to-real Transforms</a>:</td><td> </td><td align="left" valign="top"> Chris@82: </td></tr> Chris@82: <tr><td align="left" valign="top">• <a href="64_002dbit-Guru-Interface.html#g_t64_002dbit-Guru-Interface" accesskey="6">64-bit Guru Interface</a>:</td><td> </td><td align="left" valign="top"> Chris@82: </td></tr> Chris@82: </table> Chris@82: Chris@82: Chris@82: Chris@82: Chris@82: </body> Chris@82: </html>