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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 bd3cc4d1df30
children
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cannam@167 3 <!-- This manual is for FFTW
cannam@167 4 (version 3.3.8, 24 May 2018).
cannam@167 5
cannam@167 6 Copyright (C) 2003 Matteo Frigo.
cannam@167 7
cannam@167 8 Copyright (C) 2003 Massachusetts Institute of Technology.
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cannam@167 24 <head>
cannam@167 25 <title>FFTW 3.3.8: FFTW MPI Transposes</title>
cannam@167 26
cannam@167 27 <meta name="description" content="FFTW 3.3.8: FFTW MPI Transposes">
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cannam@167 35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
cannam@167 36 <link href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" rel="up" title="Distributed-memory FFTW with MPI">
cannam@167 37 <link href="Basic-distributed_002dtranspose-interface.html#Basic-distributed_002dtranspose-interface" rel="next" title="Basic distributed-transpose interface">
cannam@167 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@167 68 </head>
cannam@167 69
cannam@167 70 <body lang="en">
cannam@167 71 <a name="FFTW-MPI-Transposes"></a>
cannam@167 72 <div class="header">
cannam@167 73 <p>
cannam@167 74 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@167 75 </div>
cannam@167 76 <hr>
cannam@167 77 <a name="FFTW-MPI-Transposes-1"></a>
cannam@167 78 <h3 class="section">6.7 FFTW MPI Transposes</h3>
cannam@167 79 <a name="index-transpose-2"></a>
cannam@167 80
cannam@167 81 <p>The FFTW&rsquo;s MPI Fourier transforms rely on one or more <em>global
cannam@167 82 transposition</em> step for their communications. For example, the
cannam@167 83 multidimensional transforms work by transforming along some
cannam@167 84 dimensions, then transposing to make the first dimension local and
cannam@167 85 transforming that, then transposing back. Because global
cannam@167 86 transposition of a block-distributed matrix has many other potential
cannam@167 87 uses besides FFTs, FFTW&rsquo;s transpose routines can be called directly,
cannam@167 88 as documented in this section.
cannam@167 89 </p>
cannam@167 90 <table class="menu" border="0" cellspacing="0">
cannam@167 91 <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@167 92 </td></tr>
cannam@167 93 <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@167 94 </td></tr>
cannam@167 95 <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@167 96 </td></tr>
cannam@167 97 </table>
cannam@167 98
cannam@167 99
cannam@167 100
cannam@167 101
cannam@167 102 </body>
cannam@167 103 </html>