./math/fftw, Collection of fast C routines to compute DFTs

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Branch: CURRENT, Version: 3.3.8nb1, Package name: fftw-3.3.8nb1, Maintainer: pkgsrc-users

FFTW is a free collection of fast C routines for computing the
Discrete Fourier Transform in one or more dimensions. It includes
complex, real, symmetric, and parallel transforms, and can handle
arbitrary array sizes efficiently. FFTW is typically faster than
other publically-available FFT implementations, and is even
competitive with vendor-tuned libraries. (See our web page for
extensive benchmarks.) To achieve this performance, FFTW uses novel
code-generation and runtime self-optimization techniques (along with
many other tricks).


Required to build:
[pkgtools/cwrappers]

Master sites:

SHA1: 59831bd4b2705381ee395e54aa6e0069b10c3626
RMD160: ce2d1c266a13c96af85d51d75252417458947dc6
Filesize: 4013.806 KB

Version history: (Expand)


CVS history: (Expand)


   2018-08-22 11:48:07 by Thomas Klausner | Files touched by this commit (3558)
Log message:
Recursive bump for perl5-5.28.0
   2018-05-30 08:45:58 by Adam Ciarcinski | Files touched by this commit (3) | Package updated
Log message:
fftw: updated to 3.3.8

FFTW 3.3.8:

* Fixed AVX, AVX2 for gcc-8.

  By default, FFTW 3.3.7 was broken with gcc-8.  AVX and AVX2 code
  assumed that the compiler honors the distinction between +0 and -0,
  but gcc-8 -ffast-math does not.  The default CFLAGS included -ffast-math.
  This release ensures that FFTW works with gcc-8 -ffast-math, and
  removes -ffast-math from the default CFLAGS for good measure.
   2017-11-23 21:24:13 by Thomas Klausner | Files touched by this commit (3) | Package updated
Log message:
fftw: update to 3.3.7.

FFTW 3.3.7:

* Experimental support for CMake.

  The primary build mechanism for FFTW remains GNU autoconf/automake.
  CMake support is meant to offer an easy way to compile FFTW on
  Windows, and as such it does not cover all the features of the
  automake build system, such as exotic cycle counters,
  cross-compiling, or build of binaries for a mixture of ISA's
  (e.g., amd64 vs amd64+avx vs amd64+avx2).  Patches are welcome.

* Fixes for armv7a cycle counter.
* Official support for aarch64, now that we have hardware to test it.
* Tweak usage of FMA instructions in a way that favors newer processors
  (Skylake and Ryzen) over older processors (Haswell).
* tests/bench: use 64-bit precision to compute mflops.

FFTW 3.3.6-pl2:

* Bugfix: MPI Fortran-03 headers were missing in FFTW 3.3.6-pl1.
   2017-01-22 15:49:23 by Thomas Klausner | Files touched by this commit (1)
Log message:
Match upstream version more closely.
   2017-01-21 20:55:29 by Adam Ciarcinski | Files touched by this commit (2)
Log message:
FFTW 3.3.6-pl1
Bugfix: FFTW 3.3.6 had the wrong libtool version number, and generated shared \ 
libraries of the form libfftw3.so.2.6.6 instead of libfftw3.so.3.*.

FFTW 3.3.6
The fftw_make_planner_thread_safe() API introduced in 3.3.5 didn't work, and \ 
this 3.3.6 fixes it. Sorry about that.
Compilation fixes for IBM XLC.
Compilation fixes for threads on Windows.
fix SIMD autodetection on amd64 when (_MSC_VER > 1500)
   2017-01-19 19:52:30 by Alistair G. Crooks | Files touched by this commit (352)
Log message:
Convert all occurrences (353 by my count) of

	MASTER_SITES= 	site1 \
			site2

style continuation lines to be simple repeated

	MASTER_SITES+= site1
	MASTER_SITES+= site2

lines. As previewed on tech-pkg. With thanks to rillig for fixing pkglint
accordingly.
   2016-08-19 14:40:18 by Thomas Klausner | Files touched by this commit (4) | Package updated
Log message:
Update fftw{,f} to 3.3.5.

FFTW 3.3.5:

* New SIMD support:
  - Power8 VSX instructions in single and double precision.
    To use, add --enable-vsx to configure.
  - Support for AVX2 (256-bit FMA instructions).
    To use, add --enable-avx2 to configure.
  - Experimental support for AVX512 and KCVI. (--enable-avx512, --enable-kcvi)
    This code is expected to work but the FFTW maintainers do not have
    hardware to test it.
  - Support for AVX128/FMA (for some AMD machines) (--enable-avx128-fma)
  - Double precision Neon SIMD for aarch64.
    This code is expected to work but the FFTW maintainers do not have
    hardware to test it.
  - generic SIMD support using gcc vector intrinsics
* Add fftw_make_planner_thread_safe() API
* fix #18 (disable float128 for CUDACC)
* fix #19: missing Fortran interface for fftwq_alloc_real
* fix #21 (don't use float128 on Portland compilers, which pretend to be gcc)
* fix: Avoid segfaults due to double free in MPI transpose

* Special note for distribution maintainers: Although FFTW supports a
  zillion SIMD instruction sets, enabling them all at the same time is
  a bad idea, because it increases the planning time for minimal gain.
  We recommend that general-purpose x86 distributions only enable SSE2
  and perhaps AVX.  Users who care about the last ounce of performance
  should recompile FFTW themselves.
   2016-07-09 08:39:18 by Thomas Klausner | Files touched by this commit (1068) | Package updated
Log message:
Bump PKGREVISION for perl-5.24.0 for everything mentioning perl.