ATLAS, LAPACK, octave et.al.

Seneka · Tux's lil' helper Joined: 16 Oct 2002 Posts: 83

just a quickie before i go ahead and install all of the above - anyone got octave to use ALTAS libraries on PPC? I know Jaguar kinda comes with ATLAS but what about inux? i'd like to do it in an ebuild but don't think will have the time to play with it - have a thesis to write and a gig of seismic data to process...

wous · n00b Joined: 08 Jan 2003 Posts: 18

atlas and lapack only have x86 keywords. Octave has an ebuild that is ppc keyworded.

Fink (fink.sourceforge.net) has atlas and octave, if you don't want to install linux...

greetings,

Wouter

Seneka · Tux's lil' helper Joined: 16 Oct 2002 Posts: 83

i built ATLAS from sources without too many problems - if anyone is going to try this - don't use too excessive optimizations or the code will segfault on one of the tests - it especially doesn't seem to like -frename-registers, which is kinda makes sence since ATLAS tries to optimize register usage by itself...
as for the x86 keyworded ebuild - i looked at it and don't see why it shouldn't be also keyworded ppc as it does exactly what i did manually:)
Octave 2.1.45 built also without a problem - i used a modified ebuild (from portage) for octave-2.1.40 - just add this to the ebuild:
inherit flag-o-matic
filter-flags "-fno-exceptions" as it requires exceptions to be enabled.
Octave sees the ATLAS libraries if they are in /usr/lib and links against them automagically:)
it's FAST!