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CVS log for pkgsrc/math/fftw/DESCR

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Default branch: MAIN


Revision 1.3 / (download) - annotate - [select for diffs], Sun May 16 10:14:09 2021 UTC (18 months, 3 weeks ago) by nia
Branch: MAIN
CVS Tags: pkgsrc-2022Q3-base, pkgsrc-2022Q3, pkgsrc-2022Q2-base, pkgsrc-2022Q2, pkgsrc-2022Q1-base, pkgsrc-2022Q1, pkgsrc-2021Q4-base, pkgsrc-2021Q4, pkgsrc-2021Q3-base, pkgsrc-2021Q3, pkgsrc-2021Q2-base, pkgsrc-2021Q2, HEAD
Changes since 1.2: +7 -9 lines
Diff to previous 1.2 (colored)

split fftw package into -long and -quad precision variants

the package previously used PKG_OPTIONS for this, but PKG_OPTIONS
are harmful in the case that they effect the resulting ABI of
library packages. this way, things that actually need fftwl and fftwq
can depend on these sub-packages.

this also fixes fftwq on NetBSD by making it pull in libquadmath.
another thing about PKG_OPTIONS for library components is that
they mean certain components don't get tested...

Revision 1.2 / (download) - annotate - [select for diffs], Tue Apr 29 22:48:45 2003 UTC (19 years, 7 months ago) by jtb
Branch: MAIN
CVS Tags: pkgsrc-2021Q1-base, pkgsrc-2021Q1, pkgsrc-2020Q4-base, pkgsrc-2020Q4, pkgsrc-2020Q3-base, pkgsrc-2020Q3, pkgsrc-2020Q2-base, pkgsrc-2020Q2, pkgsrc-2020Q1-base, pkgsrc-2020Q1, pkgsrc-2019Q4-base, pkgsrc-2019Q4, pkgsrc-2019Q3-base, pkgsrc-2019Q3, pkgsrc-2019Q2-base, pkgsrc-2019Q2, pkgsrc-2019Q1-base, pkgsrc-2019Q1, pkgsrc-2018Q4-base, pkgsrc-2018Q4, pkgsrc-2018Q3-base, pkgsrc-2018Q3, pkgsrc-2018Q2-base, pkgsrc-2018Q2, pkgsrc-2018Q1-base, pkgsrc-2018Q1, pkgsrc-2017Q4-base, pkgsrc-2017Q4, pkgsrc-2017Q3-base, pkgsrc-2017Q3, pkgsrc-2017Q2-base, pkgsrc-2017Q2, pkgsrc-2017Q1-base, pkgsrc-2017Q1, pkgsrc-2016Q4-base, pkgsrc-2016Q4, pkgsrc-2016Q3-base, pkgsrc-2016Q3, pkgsrc-2016Q2-base, pkgsrc-2016Q2, pkgsrc-2016Q1-base, pkgsrc-2016Q1, pkgsrc-2015Q4-base, pkgsrc-2015Q4, pkgsrc-2015Q3-base, pkgsrc-2015Q3, pkgsrc-2015Q2-base, pkgsrc-2015Q2, pkgsrc-2015Q1-base, pkgsrc-2015Q1, pkgsrc-2014Q4-base, pkgsrc-2014Q4, pkgsrc-2014Q3-base, pkgsrc-2014Q3, pkgsrc-2014Q2-base, pkgsrc-2014Q2, pkgsrc-2014Q1-base, pkgsrc-2014Q1, pkgsrc-2013Q4-base, pkgsrc-2013Q4, pkgsrc-2013Q3-base, pkgsrc-2013Q3, pkgsrc-2013Q2-base, pkgsrc-2013Q2, pkgsrc-2013Q1-base, pkgsrc-2013Q1, pkgsrc-2012Q4-base, pkgsrc-2012Q4, pkgsrc-2012Q3-base, pkgsrc-2012Q3, pkgsrc-2012Q2-base, pkgsrc-2012Q2, pkgsrc-2012Q1-base, pkgsrc-2012Q1, pkgsrc-2011Q4-base, pkgsrc-2011Q4, pkgsrc-2011Q3-base, pkgsrc-2011Q3, pkgsrc-2011Q2-base, pkgsrc-2011Q2, pkgsrc-2011Q1-base, pkgsrc-2011Q1, pkgsrc-2010Q4-base, pkgsrc-2010Q4, pkgsrc-2010Q3-base, pkgsrc-2010Q3, pkgsrc-2010Q2-base, pkgsrc-2010Q2, pkgsrc-2010Q1-base, pkgsrc-2010Q1, pkgsrc-2009Q4-base, pkgsrc-2009Q4, pkgsrc-2009Q3-base, pkgsrc-2009Q3, pkgsrc-2009Q2-base, pkgsrc-2009Q2, pkgsrc-2009Q1-base, pkgsrc-2009Q1, pkgsrc-2008Q4-base, pkgsrc-2008Q4, pkgsrc-2008Q3-base, pkgsrc-2008Q3, pkgsrc-2008Q2-base, pkgsrc-2008Q2, pkgsrc-2008Q1-base, pkgsrc-2008Q1, pkgsrc-2007Q4-base, pkgsrc-2007Q4, pkgsrc-2007Q3-base, pkgsrc-2007Q3, pkgsrc-2007Q2-base, pkgsrc-2007Q2, pkgsrc-2007Q1-base, pkgsrc-2007Q1, pkgsrc-2006Q4-base, pkgsrc-2006Q4, pkgsrc-2006Q3-base, pkgsrc-2006Q3, pkgsrc-2006Q2-base, pkgsrc-2006Q2, pkgsrc-2006Q1-base, pkgsrc-2006Q1, pkgsrc-2005Q4-base, pkgsrc-2005Q4, pkgsrc-2005Q3-base, pkgsrc-2005Q3, pkgsrc-2005Q2-base, pkgsrc-2005Q2, pkgsrc-2005Q1-base, pkgsrc-2005Q1, pkgsrc-2004Q4-base, pkgsrc-2004Q4, pkgsrc-2004Q3-base, pkgsrc-2004Q3, pkgsrc-2004Q2-base, pkgsrc-2004Q2, pkgsrc-2004Q1-base, pkgsrc-2004Q1, pkgsrc-2003Q4-base, pkgsrc-2003Q4, cwrapper, cube-native-xorg-base, cube-native-xorg
Changes since 1.1: +9 -2 lines
Diff to previous 1.1 (colored)

Update to version 3.0.

Major goals of this release:

* Speed: often 20% or more faster than FFTW 2.x, even without SIMD (see below).

* Complete rewrite, to make it easier to add new algorithms and transforms.

* New API, to support more general semantics.

Other enhancements:

* SIMD acceleration on supporting CPUs (SSE, SSE2, 3DNow!, and AltiVec).
 (With special thanks to Franz Franchetti for many experimental prototypes
  and to Stefan Kral for the vectorizing generator from fftwgel.)

* True in-place 1d transforms of large sizes (as well as compressed
  twiddle tables for additional memory/cache savings).

* More arbitrary placement of real & imaginary data, e.g. including
  interleaved (as in FFTW 2.x) as well as separate real/imag arrays.

* Efficient prime-size transforms of real data.

* Multidimensional transforms can operate on a subset of a larger matrix,
  and/or transform selected dimensions of a multidimensional array.

* By popular demand, simultaneous linking to double precision (fftw),
  single precision (fftwf), and long-double precision (fftwl) versions
  of FFTW is now supported.

* Cycle counters (on all modern CPUs) are exploited to speed planning.

* Efficient transforms of real even/odd arrays, a.k.a. discrete
  cosine/sine transforms (types I-IV).  (Currently work via pre/post
  processing of real transforms, ala FFTPACK, so are not optimal.)

* DHTs (Discrete Hartley Transforms), again via post-processing
  of real transforms (and thus suboptimal, for now).

* Support for linking to just those parts of FFTW that you need,
  greatly reducing the size of statically linked programs when
  only a limited set of transform sizes/types are required.

* Canonical global wisdom file (/etc/fftw/wisdom) on Unix, along
  with a command-line tool (fftw-wisdom) to generate/update it.

* Fortran API can be used with both g77 and non-g77 compilers
  simultaneously.

* Multi-threaded version has optional OpenMP support.

* Authors' good looks have greatly improved with age.

Revision 1.1 / (download) - annotate - [select for diffs], Thu Nov 1 00:12:23 2001 UTC (21 years, 1 month ago) by zuntum
Branch: MAIN
CVS Tags: pkgviews-base, pkgviews, netbsd-1-6-RELEASE-base, netbsd-1-6-1-base, netbsd-1-6-1, netbsd-1-6, netbsd-1-5-PATCH003, buildlink2-base, buildlink2

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