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| author | Chris Cannam |
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| date | Wed, 20 Mar 2013 15:35:50 +0000 |
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| 1 <html lang="en"> | |
| 2 <head> | |
| 3 <title>FFTW MPI Installation - FFTW 3.3.3</title> | |
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| 5 <meta name="description" content="FFTW 3.3.3"> | |
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| 8 <link rel="up" href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" title="Distributed-memory FFTW with MPI"> | |
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| 12 <!-- | |
| 13 This manual is for FFTW | |
| 14 (version 3.3.3, 25 November 2012). | |
| 15 | |
| 16 Copyright (C) 2003 Matteo Frigo. | |
| 17 | |
| 18 Copyright (C) 2003 Massachusetts Institute of Technology. | |
| 19 | |
| 20 Permission is granted to make and distribute verbatim copies of | |
| 21 this manual provided the copyright notice and this permission | |
| 22 notice are preserved on all copies. | |
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| 25 this manual under the conditions for verbatim copying, provided | |
| 26 that the entire resulting derived work is distributed under the | |
| 27 terms of a permission notice identical to this one. | |
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| 29 Permission is granted to copy and distribute translations of this | |
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| 48 <div class="node"> | |
| 49 <a name="FFTW-MPI-Installation"></a> | |
| 50 <p> | |
| 51 Next: <a rel="next" accesskey="n" href="Linking-and-Initializing-MPI-FFTW.html#Linking-and-Initializing-MPI-FFTW">Linking and Initializing MPI FFTW</a>, | |
| 52 Previous: <a rel="previous" accesskey="p" href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI">Distributed-memory FFTW with MPI</a>, | |
| 53 Up: <a rel="up" accesskey="u" href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI">Distributed-memory FFTW with MPI</a> | |
| 54 <hr> | |
| 55 </div> | |
| 56 | |
| 57 <h3 class="section">6.1 FFTW MPI Installation</h3> | |
| 58 | |
| 59 <p>All of the FFTW MPI code is located in the <code>mpi</code> subdirectory of | |
| 60 the FFTW package. On Unix systems, the FFTW MPI libraries and header | |
| 61 files are automatically configured, compiled, and installed along with | |
| 62 the uniprocessor FFTW libraries simply by including | |
| 63 <code>--enable-mpi</code> in the flags to the <code>configure</code> script | |
| 64 (see <a href="Installation-on-Unix.html#Installation-on-Unix">Installation on Unix</a>). | |
| 65 <a name="index-configure-349"></a> | |
| 66 | |
| 67 <p>Any implementation of the MPI standard, version 1 or later, should | |
| 68 work with FFTW. The <code>configure</code> script will attempt to | |
| 69 automatically detect how to compile and link code using your MPI | |
| 70 implementation. In some cases, especially if you have multiple | |
| 71 different MPI implementations installed or have an unusual MPI | |
| 72 software package, you may need to provide this information explicitly. | |
| 73 | |
| 74 <p>Most commonly, one compiles MPI code by invoking a special compiler | |
| 75 command, typically <code>mpicc</code> for C code. The <code>configure</code> | |
| 76 script knows the most common names for this command, but you can | |
| 77 specify the MPI compilation command explicitly by setting the | |
| 78 <code>MPICC</code> variable, as in ‘<samp><span class="samp">./configure MPICC=mpicc ...</span></samp>’. | |
| 79 <a name="index-mpicc-350"></a> | |
| 80 | |
| 81 <p>If, instead of a special compiler command, you need to link a certain | |
| 82 library, you can specify the link command via the <code>MPILIBS</code> | |
| 83 variable, as in ‘<samp><span class="samp">./configure MPILIBS=-lmpi ...</span></samp>’. Note that if | |
| 84 your MPI library is installed in a non-standard location (one the | |
| 85 compiler does not know about by default), you may also have to specify | |
| 86 the location of the library and header files via <code>LDFLAGS</code> and | |
| 87 <code>CPPFLAGS</code> variables, respectively, as in ‘<samp><span class="samp">./configure | |
| 88 LDFLAGS=-L/path/to/mpi/libs CPPFLAGS=-I/path/to/mpi/include ...</span></samp>’. | |
| 89 | |
| 90 <!-- --> | |
| 91 </body></html> | |
| 92 |