Bug 120763 - sci-libs/fftw version bump to 3.1
Bug#: 120763 Product:  Gentoo Linux Version: unspecified Platform: All
OS/Version: Linux Status: RESOLVED Severity: enhancement Priority: P2
Resolution: FIXED Assigned To: sci@gentoo.org Reported By: gentoo@altkai.ml1.net
Component: Library
URL: 
Summary: sci-libs/fftw version bump to 3.1
Keywords:  
Status Whiteboard: 
Opened: 2006-01-28 14:29 0000
Description:   Opened: 2006-01-28 14:29 0000 
Version bump request.

------- Comment #1 From Philippe Trottier (RETIRED) 2006-02-08 04:58:35 0000 ------- 
There is a VERY good performance gain on ppc-linux.

------- Comment #2 From Markus Dittrich 2006-02-11 12:22:23 0000 ------- 
I just committed fftw-3.1 to portage CVS. Currently, it is masked for
further testing. It works fine for me and passes all the tests, but please
give it a spin an report back.

Thanks,
Markus

------- Comment #3 From Adam Piątyszek 2006-02-23 09:46:43 0000 ------- 
I can confirm that fftw 3.1 works OK on x86 (Intel Pentium-M) architecture.
Here are the flags I used for compilation:

[ Found these USE variables for sci-libs/fftw-3.1 ]
 U I
 - - 3dnow   : Adds support for 3dnow multimedia processor instructions
 - - altivec : Adds support for optimizations for G4 and G5/ppc970 processors
 + + sse     : fast floating point optimization for PentiumIII+ class chips
 + + sse2    : faster floating point optimization for SSE2 capable chips

BR,

/ediap

------- Comment #4 From Markus Dittrich 2006-02-26 13:55:58 0000 ------- 
Hi  Adam,

Thank you very much for reporting back. After some further testing I'll 
hopefully be able to unmask fftw-3.1 soon.

Thanks,
Markus