[FFTW-announce] FFTW 3.2 is released

[Steven G. Johnson]

Dear FFTW users,

The official release of FFTW 3.2 is now available from the FFTW home page:

 	http://www.fftw.org/

This release does *not* contain the experimental MPI transfroms from FFTW 
3.2alpha; as those routines are still in alpha, they have been moved to FFTW 
3.3alpha1 (also available from the FFTW web page).

Compared to version 3.1.3 of FFTW, highlights of the FFTW 3.2 release include:

* Significantly faster r2c/c2r transforms, especially on machines
   (e.g. x86) with SIMD instruction.

* Performance improvements for sizes with factors of 5 and 10.

* Rewritten threading support for improved performance.

* Support for the Cell processor, donated by IBM Research; see
   README.Cell and the Cell section of the manual.

* Support for MIPS paired-single SIMD instructions, donated by
   Codesourcery.

The complete release notes can be found in the NEWS and ChangeLog files of the 
release, and at:

 	http://fftw.org/release-notes

Specific changes compared to FFTW 3.2alpha3 are listed below.

Regards,
Steven G. Johnson and Matteo Frigo

FFTW 3.2 changes from 3.2alpha3

* Worked around apparent glibc bug that leads to rare hangs when freeing
   semaphores.

* Fixed segfault due to unaligned access in certain obscure problems
   that use SSE and multiple threads.

* MPI transforms not included, as they are still in alpha; the alpha
   versions of the MPI transforms have been moved to FFTW 3.3alpha1.