head	1.2;
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locks; strict;
comment	@# @;


1.2
date	2003.04.29.22.48.46;	author jtb;	state dead;
branches;
next	1.1;

1.1
date	2001.04.27.22.22.23;	author jtb;	state Exp;
branches;
next	;


desc
@@


1.2
log
@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.
@
text
@$NetBSD: patch-ab,v 1.1 2001/04/27 22:22:23 jtb Exp $

--- configure.orig	Mon Nov  8 01:45:45 1999
+++ configure
@@@@ -2215,6 +2215,7 @@@@
 int main() {
 foobar();
 ; return 0; }
+void MAIN__(void){abort();}
 EOF
 if { (eval echo configure:2220: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
@@@@ -2230,6 +2231,7 @@@@
 int main() {
 foobar_();
 ; return 0; }
+void MAIN__(void){abort();}
 EOF
 if { (eval echo configure:2235: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
@@@@ -2245,6 +2247,7 @@@@
 int main() {
 FOOBAR();
 ; return 0; }
+void MAIN__(void){abort();}
 EOF
 if { (eval echo configure:2250: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
@@@@ -2260,6 +2263,7 @@@@
 int main() {
 FOOBAR_();
 ; return 0; }
+void MAIN__(void){abort();}
 EOF
 if { (eval echo configure:2265: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
@@@@ -2337,6 +2341,7 @@@@
 int main() {
 $mangle_try();
 ; return 0; }
+void MAIN__(void){abort();}
 EOF
 if { (eval echo configure:2342: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
@


1.1
log
@Add a patch to configure so that it correctly determines the way
the Fortran compiler mangles function names.  Don't delete the
libtool .la file after installation -- they might be useful for something.
@
text
@d1 1
a1 1
$NetBSD$
@