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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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2 <html>
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3 <!-- This manual is for FFTW
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4 (version 3.3.8, 24 May 2018).
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5
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6 Copyright (C) 2003 Matteo Frigo.
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7
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8 Copyright (C) 2003 Massachusetts Institute of Technology.
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9
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10 Permission is granted to make and distribute verbatim copies of this
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11 manual provided the copyright notice and this permission notice are
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12 preserved on all copies.
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13
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14 Permission is granted to copy and distribute modified versions of this
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15 manual under the conditions for verbatim copying, provided that the
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16 entire resulting derived work is distributed under the terms of a
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17 permission notice identical to this one.
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18
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19 Permission is granted to copy and distribute translations of this manual
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20 into another language, under the above conditions for modified versions,
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21 except that this permission notice may be stated in a translation
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22 approved by the Free Software Foundation. -->
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23 <!-- Created by GNU Texinfo 6.3, http://www.gnu.org/software/texinfo/ -->
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24 <head>
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25 <title>FFTW 3.3.8: FFTW MPI Installation</title>
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26
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27 <meta name="description" content="FFTW 3.3.8: FFTW MPI Installation">
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28 <meta name="keywords" content="FFTW 3.3.8: FFTW MPI Installation">
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33 <link href="index.html#Top" rel="start" title="Top">
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34 <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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35 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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36 <link href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" rel="up" title="Distributed-memory FFTW with MPI">
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37 <link href="Linking-and-Initializing-MPI-FFTW.html#Linking-and-Initializing-MPI-FFTW" rel="next" title="Linking and Initializing MPI FFTW">
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38 <link href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" rel="prev" title="Distributed-memory FFTW with MPI">
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64 -->
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65 </style>
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66
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67
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68 </head>
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69
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70 <body lang="en">
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71 <a name="FFTW-MPI-Installation"></a>
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72 <div class="header">
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73 <p>
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74 Next: <a href="Linking-and-Initializing-MPI-FFTW.html#Linking-and-Initializing-MPI-FFTW" accesskey="n" rel="next">Linking and Initializing MPI FFTW</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="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" accesskey="u" rel="up">Distributed-memory FFTW with MPI</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>
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75 </div>
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76 <hr>
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77 <a name="FFTW-MPI-Installation-1"></a>
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78 <h3 class="section">6.1 FFTW MPI Installation</h3>
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79
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80 <p>All of the FFTW MPI code is located in the <code>mpi</code> subdirectory of
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81 the FFTW package. On Unix systems, the FFTW MPI libraries and header
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82 files are automatically configured, compiled, and installed along with
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83 the uniprocessor FFTW libraries simply by including
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84 <code>--enable-mpi</code> in the flags to the <code>configure</code> script
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85 (see <a href="Installation-on-Unix.html#Installation-on-Unix">Installation on Unix</a>).
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86 <a name="index-configure-1"></a>
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87 </p>
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88
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89 <p>Any implementation of the MPI standard, version 1 or later, should
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90 work with FFTW. The <code>configure</code> script will attempt to
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91 automatically detect how to compile and link code using your MPI
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92 implementation. In some cases, especially if you have multiple
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93 different MPI implementations installed or have an unusual MPI
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94 software package, you may need to provide this information explicitly.
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95 </p>
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96 <p>Most commonly, one compiles MPI code by invoking a special compiler
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97 command, typically <code>mpicc</code> for C code. The <code>configure</code>
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98 script knows the most common names for this command, but you can
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99 specify the MPI compilation command explicitly by setting the
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100 <code>MPICC</code> variable, as in ‘<samp>./configure MPICC=mpicc ...</samp>’.
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101 <a name="index-mpicc"></a>
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102 </p>
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103
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104 <p>If, instead of a special compiler command, you need to link a certain
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105 library, you can specify the link command via the <code>MPILIBS</code>
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106 variable, as in ‘<samp>./configure MPILIBS=-lmpi ...</samp>’. Note that if
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107 your MPI library is installed in a non-standard location (one the
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108 compiler does not know about by default), you may also have to specify
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109 the location of the library and header files via <code>LDFLAGS</code> and
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110 <code>CPPFLAGS</code> variables, respectively, as in ‘<samp>./configure
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111 LDFLAGS=-L/path/to/mpi/libs CPPFLAGS=-I/path/to/mpi/include ...</samp>’.
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112 </p>
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113
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114
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115
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116 </body>
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117 </html>
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