Difference between revisions of "FFTW"
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| − | FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions. The name, "FFTW," stands for "Fastest Fourier Transform in the West." FFTW was developed at MIT, which is in the east. [[DJBFFT]] is an alternative that claims to be faster. | + | {{Package-Introduction|FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions. The name, "FFTW," stands for "Fastest Fourier Transform in the West." FFTW was developed at MIT, which is in the east. [[DJBFFT]] is an alternative that claims to be faster.|http://www.fftw.org/}} |
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== Dependencies == | == Dependencies == | ||
| Line 16: | Line 14: | ||
* [[Objective Caml]] | * [[Objective Caml]] | ||
| − | * | + | * [[OpenMPI]] is required if passing the <i>--enable-openmp:</i> switch to the configure script. |
== Configuration Information == | == Configuration Information == | ||
| Line 36: | Line 34: | ||
|<i>--disable-fortran:</i> don't include FORTRAN callable wrappers. | |<i>--disable-fortran:</i> don't include FORTRAN callable wrappers. | ||
|-valign=top | |-valign=top | ||
| − | |<i>-- | + | |<i>--enable-openmp:</i> use OpenMP directives instead of a threads library. |
| + | |} | ||
| + | |||
| + | {{Note|The default is to build a double precision library. Generally one would build fftw three times; add the --enable-single and --enable-long-double options to the configuration for subsequent builds. This will result in libfft3, libfftw3f, and libfftw3l for single, double, and long-double libraries.}} | ||
== Non-Multilib == | == Non-Multilib == | ||
| Line 42: | Line 43: | ||
Compile the package: | Compile the package: | ||
| − | ./configure --prefix=/usr --enable-shared && | + | ./configure --prefix=/usr --enable-shared --enable-threads && |
make | make | ||
| Line 70: | Line 71: | ||
CC="gcc ${BUILD32} -fPIC" CXX="g++ ${BUILD32} -fPIC" \ | CC="gcc ${BUILD32} -fPIC" CXX="g++ ${BUILD32} -fPIC" \ | ||
| − | ./configure --prefix=/usr --enable-shared && | + | ./configure --prefix=/usr --enable-shared --enable-threads && |
make | make | ||
| Line 82: | Line 83: | ||
CC="gcc ${BUILDN32} -fPIC" CXX="g++ ${BUILDN32} -fPIC" \ | CC="gcc ${BUILDN32} -fPIC" CXX="g++ ${BUILDN32} -fPIC" \ | ||
| − | ./configure --prefix=/usr --libdir=/usr/lib32 --enable-shared && | + | ./configure --prefix=/usr --libdir=/usr/lib32 --enable-shared --enable-threads && |
make | make | ||
| Line 94: | Line 95: | ||
CC="gcc ${BUILD64} -fPIC" CXX="g++ ${BUILD64} -fPIC" \ | CC="gcc ${BUILD64} -fPIC" CXX="g++ ${BUILD64} -fPIC" \ | ||
| − | ./configure --prefix=/usr --libdir=/usr/lib64 --enable-shared && | + | ./configure --prefix=/usr --libdir=/usr/lib64 --enable-shared --enable-threads && |
make | make | ||
| Line 117: | Line 118: | ||
= Contents = | = Contents = | ||
| − | {| style="text-align: left | + | {|style="text-align: left" |
| + | |-valign="top" | ||
| + | !Installed Directories: | ||
| + | |None | ||
|-valign="top" | |-valign="top" | ||
!Installed Programs: | !Installed Programs: | ||
| − | | | + | |fftwl-wisdom, fftw-wisdom-to-conf |
|-valign="top" | |-valign="top" | ||
!Installed Libraries: | !Installed Libraries: | ||
| − | | | + | |libfftw3l.so, libfftw3l.la, libfftw3l.a |
| + | |-valign="top" | ||
| + | !Symlinks: | ||
| + | |None | ||
|} | |} | ||
| Line 130: | Line 137: | ||
{| style="text-align: left | {| style="text-align: left | ||
|-valign="top" | |-valign="top" | ||
| − | ! | + | !fftwl-wisdom: |
|Creates wisdom (pre-planned/optimized transforms) for specified sizes, writing wisdom to stdout or file. | |Creates wisdom (pre-planned/optimized transforms) for specified sizes, writing wisdom to stdout or file. | ||
|-valign="top" | |-valign="top" | ||
| Line 136: | Line 143: | ||
|Converts wisdom (stdin) to C configuration routine (stdout). | |Converts wisdom (stdin) to C configuration routine (stdout). | ||
|} | |} | ||
| + | |||
| + | [[Category:Science_Engineering]] | ||
Latest revision as of 06:08, 3 November 2010
| Download Source: | ftp://ftp.fftw.org/pub/fftw/fftw-3.2.2.tar.gz |
|---|
Contents
Introduction to FFTW
FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions. The name, "FFTW," stands for "Fastest Fourier Transform in the West." FFTW was developed at MIT, which is in the east. DJBFFT is an alternative that claims to be faster.
Project Homepage: http://www.fftw.org/
Dependencies
Optional
- Objective Caml
- OpenMPI is required if passing the --enable-openmp: switch to the configure script.
Configuration Information
Some options that you may wish to pass to the configure script.
| --enable-single: compile FFTW in single precision. |
| --enable-long-double: compile FFTW in long-double precision. |
| --enable-k7: enable AMD k7 optimizations, including 3dNow! |
| --enable-sse: enable SSE optimizations. |
| --enable-sse2: enable SSE2 optimizations. |
| --disable-fortran: don't include FORTRAN callable wrappers. |
| --enable-openmp: use OpenMP directives instead of a threads library. |
Note
The default is to build a double precision library. Generally one would build fftw three times; add the --enable-single and --enable-long-double options to the configuration for subsequent builds. This will result in libfft3, libfftw3f, and libfftw3l for single, double, and long-double libraries.
Non-Multilib
Compile the package:
./configure --prefix=/usr --enable-shared --enable-threads && make
Install the package:
make install
Build and install the info pages for FFTW:
make install-info
Install the PDF documentation for FFTW:
install -v -m755 -d /usr/share/doc/FFTW-3.2.2 && cp -v doc/fftw3.pdf /usr/share/doc/FFTW-3.2.2
Install the html documentation for FFTW:
install -v -m755 -d /usr/share/doc/FFTW-3.2.2/html && cp -v doc/html/*.html /usr/share/doc/FFTW-3.2.2/html
Multilib
32Bit
Compile the package:
CC="gcc ${BUILD32} -fPIC" CXX="g++ ${BUILD32} -fPIC" \
./configure --prefix=/usr --enable-shared --enable-threads &&
make
Install the package:
make install
N32
Compile the package:
CC="gcc ${BUILDN32} -fPIC" CXX="g++ ${BUILDN32} -fPIC" \
./configure --prefix=/usr --libdir=/usr/lib32 --enable-shared --enable-threads &&
make
Install the package
make install
64Bit
Compile the package:
CC="gcc ${BUILD64} -fPIC" CXX="g++ ${BUILD64} -fPIC" \
./configure --prefix=/usr --libdir=/usr/lib64 --enable-shared --enable-threads &&
make
Install the package:
make install
Build and install the info pages for FFTW:
make install-info
Install the PDF documentation for FFTW:
install -v -m755 -d /usr/share/doc/FFTW-3.2.2 && cp -v doc/fftw3.pdf /usr/share/doc/FFTW-3.2.2
Install the html documentation for FFTW:
install -v -m755 -d /usr/share/doc/FFTW-3.2.2/html && cp -v doc/html/*.html /usr/share/doc/FFTW-3.2.2/html
Contents
| Installed Directories: | None |
|---|---|
| Installed Programs: | fftwl-wisdom, fftw-wisdom-to-conf |
| Installed Libraries: | libfftw3l.so, libfftw3l.la, libfftw3l.a |
| Symlinks: | None |
Short Description
| fftwl-wisdom: | Creates wisdom (pre-planned/optimized transforms) for specified sizes, writing wisdom to stdout or file. |
|---|---|
| fftw-wisdom-to-conf: | Converts wisdom (stdin) to C configuration routine (stdout). |
