[R-SIG-Mac]compiling with atlas

[Thomas Lumley]

On Fri, 1 Feb 2002, Wiener, Matthew wrote:

> One additional question on atlas:  for R, is it generally worth it to
> optimize BLAS level 1?  I chose yes because I didn't know.  But if it's not
> that important, I'd be happy to save the time someday when I need to update.

Probably not -- in the old days when we only used the Level 1 BLAS there
seemed to be little performance gain from ATLAS on Linux or from the Sun
BLAS on Solaris. YMMV, of course. In particular the Altivec instructions
on G4s could help noticeably.

	-thomas