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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 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
cannam@167 2 <html>
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 10 Permission is granted to make and distribute verbatim copies of this
cannam@167 11 manual provided the copyright notice and this permission notice are
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cannam@167 24 <head>
cannam@167 25 <title>FFTW 3.3.8: Calling FFTW from Modern Fortran</title>
cannam@167 26
cannam@167 27 <meta name="description" content="FFTW 3.3.8: Calling FFTW from Modern Fortran">
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cannam@167 35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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cannam@167 37 <link href="Overview-of-Fortran-interface.html#Overview-of-Fortran-interface" rel="next" title="Overview of Fortran interface">
cannam@167 38 <link href="FFTW-MPI-Fortran-Interface.html#FFTW-MPI-Fortran-Interface" rel="prev" title="FFTW MPI Fortran Interface">
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cannam@167 68 </head>
cannam@167 69
cannam@167 70 <body lang="en">
cannam@167 71 <a name="Calling-FFTW-from-Modern-Fortran"></a>
cannam@167 72 <div class="header">
cannam@167 73 <p>
cannam@167 74 Next: <a href="Calling-FFTW-from-Legacy-Fortran.html#Calling-FFTW-from-Legacy-Fortran" accesskey="n" rel="next">Calling FFTW from Legacy Fortran</a>, Previous: <a href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" accesskey="p" rel="prev">Distributed-memory FFTW with MPI</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</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="Calling-FFTW-from-Modern-Fortran-1"></a>
cannam@167 78 <h2 class="chapter">7 Calling FFTW from Modern Fortran</h2>
cannam@167 79 <a name="index-Fortran-interface-2"></a>
cannam@167 80
cannam@167 81 <p>Fortran 2003 standardized ways for Fortran code to call C libraries,
cannam@167 82 and this allows us to support a direct translation of the FFTW C API
cannam@167 83 into Fortran. Compared to the legacy Fortran 77 interface
cannam@167 84 (see <a href="Calling-FFTW-from-Legacy-Fortran.html#Calling-FFTW-from-Legacy-Fortran">Calling FFTW from Legacy Fortran</a>), this direct interface
cannam@167 85 offers many advantages, especially compile-time type-checking and
cannam@167 86 aligned memory allocation. As of this writing, support for these C
cannam@167 87 interoperability features seems widespread, having been implemented in
cannam@167 88 nearly all major Fortran compilers (e.g. GNU, Intel, IBM,
cannam@167 89 Oracle/Solaris, Portland Group, NAG).
cannam@167 90 <a name="index-portability-4"></a>
cannam@167 91 </p>
cannam@167 92 <p>This chapter documents that interface. For the most part, since this
cannam@167 93 interface allows Fortran to call the C interface directly, the usage
cannam@167 94 is identical to C translated to Fortran syntax. However, there are a
cannam@167 95 few subtle points such as memory allocation, wisdom, and data types
cannam@167 96 that deserve closer attention.
cannam@167 97 </p>
cannam@167 98 <table class="menu" border="0" cellspacing="0">
cannam@167 99 <tr><td align="left" valign="top">&bull; <a href="Overview-of-Fortran-interface.html#Overview-of-Fortran-interface" accesskey="1">Overview of Fortran interface</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 100 </td></tr>
cannam@167 101 <tr><td align="left" valign="top">&bull; <a href="Reversing-array-dimensions.html#Reversing-array-dimensions" accesskey="2">Reversing array dimensions</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 102 </td></tr>
cannam@167 103 <tr><td align="left" valign="top">&bull; <a href="FFTW-Fortran-type-reference.html#FFTW-Fortran-type-reference" accesskey="3">FFTW Fortran type reference</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 104 </td></tr>
cannam@167 105 <tr><td align="left" valign="top">&bull; <a href="Plan-execution-in-Fortran.html#Plan-execution-in-Fortran" accesskey="4">Plan execution in Fortran</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 106 </td></tr>
cannam@167 107 <tr><td align="left" valign="top">&bull; <a href="Allocating-aligned-memory-in-Fortran.html#Allocating-aligned-memory-in-Fortran" accesskey="5">Allocating aligned memory in Fortran</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 108 </td></tr>
cannam@167 109 <tr><td align="left" valign="top">&bull; <a href="Accessing-the-wisdom-API-from-Fortran.html#Accessing-the-wisdom-API-from-Fortran" accesskey="6">Accessing the wisdom API from Fortran</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 110 </td></tr>
cannam@167 111 <tr><td align="left" valign="top">&bull; <a href="Defining-an-FFTW-module.html#Defining-an-FFTW-module" accesskey="7">Defining an FFTW module</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
cannam@167 112 </td></tr>
cannam@167 113 </table>
cannam@167 114
cannam@167 115
cannam@167 116
cannam@167 117
cannam@167 118 </body>
cannam@167 119 </html>