Hi Ed, On Saturday 30 April 2005 03:07 pm, M. Edward (Ed) Borasky wrote: > Speaking of Atlas, I recently did some beta-testing on R 2.1 and found > some minor numerical issues on my Athlon Thunderbird in the Atlas 3.6.0 > libraries built by Gentoo ebuilds. These weren't ghastly problems -- > just a low-end bit or two in some linear regressions -- but they were > enough to trigger some rather sensitive error tests in the R test suite. > The tests were in fact so sensitive that the R developers made them more > lenient as a result of my bug reports. :) > > The interesting thing, though, is that I was the *only* tester that > reported these issues, and that they went away when I built Atlas, both > 3.6.0 and the latest, 3.7.8, directly from source, rather than from the > ebuild, and used the hand-built version in building R.
Which atlas ebuild were you using? I use the lapack-atlas and blas-atlas ebuilds, and I built scipy from source. The scipy tests passed, but maybe they are less sensitive. -- Darren -- [email protected] mailing list
