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Add null config files
author Chris Cannam <cannam@all-day-breakfast.com>
date Mon, 02 Mar 2020 14:03:47 +0000
parents 7867fa7e1b6b
children
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cannam@127 3 <!-- This manual is for FFTW
cannam@127 4 (version 3.3.5, 30 July 2016).
cannam@127 5
cannam@127 6 Copyright (C) 2003 Matteo Frigo.
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cannam@127 8 Copyright (C) 2003 Massachusetts Institute of Technology.
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cannam@127 24 <head>
cannam@127 25 <title>FFTW 3.3.5: FFTW MPI Transposes</title>
cannam@127 26
cannam@127 27 <meta name="description" content="FFTW 3.3.5: FFTW MPI Transposes">
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cannam@127 35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
cannam@127 36 <link href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" rel="up" title="Distributed-memory FFTW with MPI">
cannam@127 37 <link href="Basic-distributed_002dtranspose-interface.html#Basic-distributed_002dtranspose-interface" rel="next" title="Basic distributed-transpose interface">
cannam@127 38 <link href="Other-Multi_002ddimensional-Real_002ddata-MPI-Transforms.html#Other-Multi_002ddimensional-Real_002ddata-MPI-Transforms" rel="prev" title="Other Multi-dimensional Real-data MPI Transforms">
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cannam@127 70
cannam@127 71 <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
cannam@127 72 <a name="FFTW-MPI-Transposes"></a>
cannam@127 73 <div class="header">
cannam@127 74 <p>
cannam@127 75 Next: <a href="FFTW-MPI-Wisdom.html#FFTW-MPI-Wisdom" accesskey="n" rel="next">FFTW MPI Wisdom</a>, Previous: <a href="Other-Multi_002ddimensional-Real_002ddata-MPI-Transforms.html#Other-Multi_002ddimensional-Real_002ddata-MPI-Transforms" accesskey="p" rel="prev">Other Multi-dimensional Real-data MPI Transforms</a>, Up: <a href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" accesskey="u" rel="up">Distributed-memory FFTW with MPI</a> &nbsp; [<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>
cannam@127 76 </div>
cannam@127 77 <hr>
cannam@127 78 <a name="FFTW-MPI-Transposes-1"></a>
cannam@127 79 <h3 class="section">6.7 FFTW MPI Transposes</h3>
cannam@127 80 <a name="index-transpose-2"></a>
cannam@127 81
cannam@127 82 <p>The FFTW&rsquo;s MPI Fourier transforms rely on one or more <em>global
cannam@127 83 transposition</em> step for their communications. For example, the
cannam@127 84 multidimensional transforms work by transforming along some
cannam@127 85 dimensions, then transposing to make the first dimension local and
cannam@127 86 transforming that, then transposing back. Because global
cannam@127 87 transposition of a block-distributed matrix has many other potential
cannam@127 88 uses besides FFTs, FFTW&rsquo;s transpose routines can be called directly,
cannam@127 89 as documented in this section.
cannam@127 90 </p>
cannam@127 91 <table class="menu" border="0" cellspacing="0">
cannam@127 92 <tr><td align="left" valign="top">&bull; <a href="Basic-distributed_002dtranspose-interface.html#Basic-distributed_002dtranspose-interface" accesskey="1">Basic distributed-transpose interface</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@127 93 </td></tr>
cannam@127 94 <tr><td align="left" valign="top">&bull; <a href="Advanced-distributed_002dtranspose-interface.html#Advanced-distributed_002dtranspose-interface" accesskey="2">Advanced distributed-transpose interface</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@127 95 </td></tr>
cannam@127 96 <tr><td align="left" valign="top">&bull; <a href="An-improved-replacement-for-MPI_005fAlltoall.html#An-improved-replacement-for-MPI_005fAlltoall" accesskey="3">An improved replacement for MPI_Alltoall</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@127 97 </td></tr>
cannam@127 98 </table>
cannam@127 99
cannam@127 100
cannam@127 101
cannam@127 102
cannam@127 103 </body>
cannam@127 104 </html>