Re: ATLAS on PowerPC

2012-07-04 Thread David Adcock
The easy answer to this query is: How many used Macs are/will be coming on the market? That's where the numbers will be. I have a Mac G4-350MHz, and with lenny was able to get 760Mflops from the BLAS/ATLAS libs via AltiVec. Squeeze appears to run well, though the GAMESS molecular modeling pro

Re: Bug#680096: ATLAS on PowerPC

2012-07-04 Thread Sébastien Villemot
"Lennart Sorensen" writes: > On Wed, Jul 04, 2012 at 09:39:37PM +0200, Sébastien Villemot wrote: >> My understanding is that POWER3 does not have Altivec, so it may >> therefore be the best option. > > Unless of course it has other instructions that the G4 doesn't have. Looking again at Atlas bu

Re: Bug#680096: ATLAS on PowerPC

2012-07-04 Thread Lennart Sorensen
On Wed, Jul 04, 2012 at 09:39:37PM +0200, Sébastien Villemot wrote: > But still POWER3 is supported by the 32-bit powerpc port: > > http://www.debian.org/releases/stable/powerpc/ch02s01.html.en#id522279 Debian powerpc is 32bit, but with 64bit kernel available. Debian 64bit powerpc is a new proj

Re: ATLAS on PowerPC

2012-07-04 Thread Chris Reich
Of the options given, PPCG4 is the most non-specific. From: Sébastien Villemot To: debian-powerpc@lists.debian.org Cc: 680...@bugs.debian.org Sent: Wednesday, July 4, 2012 1:26 PM Subject: ATLAS on PowerPC [please keep the bug in Cc:, I’m not subscribed to t

Re: Bug#680096: ATLAS on PowerPC

2012-07-04 Thread Sébastien Villemot
"brian m. carlson" writes: > POWER3 is 64-bit. But still POWER3 is supported by the 32-bit powerpc port: http://www.debian.org/releases/stable/powerpc/ch02s01.html.en#id522279 > PPCG4 is 32-bit, but it requires the use of Altivec > instructions, which G3 processors do not have. So the answe

Re: ATLAS on PowerPC

2012-07-04 Thread brian m. carlson
On Wed, Jul 04, 2012 at 07:26:00PM +0200, Sébastien Villemot wrote: > [please keep the bug in Cc:, I’m not subscribed to the list] > > Dear PowerPC porters, > > As a co-maintainer of atlas, I intend to force a specific PowerPC CPU > architecture when the package is built on buildds (in order to f

ATLAS on PowerPC

2012-07-04 Thread Sébastien Villemot
[please keep the bug in Cc:, I’m not subscribed to the list] Dear PowerPC porters, As a co-maintainer of atlas, I intend to force a specific PowerPC CPU architecture when the package is built on buildds (in order to fix #680096). Atlas gives me the following options: POWER3, POWER4, POWER5, POWE