FFTW

Download Source:	ftp://ftp.fftw.org/pub/fftw/fftw-3.2.2.tar.gz

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.

Homepage: http://www.fftw.org/

Dependencies

Optional

• Objective Caml
• OpenMP is required if passing the --with-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.

--with-openmp: use OpenMP directives instead of a threads library. Non-Multilib Compile the package: ./configure --prefix=/usr --enable-shared && 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 && 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 && 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 && 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 Programs: fftw-wisdom, fftw-wisdom-to-conf Installed Libraries: libfftw3.{la,a} Short Description fftw-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).