On Monday, August 19, 2013 5:57:01 PM UTC+1, Dima Pasechnik wrote:
> it should be possible to tell Sage to use Atlas from the previous build,
> just as one is able to use a system-wide Atlas.
It is, just point SAGE_ATLAS_LIB at the directory containing the ATLAS
libraries.
--
You received
On 2013-08-19, John Cremona wrote:
> My atlas build did finish ok in 5h++ so I am letting the rest of the
> build finish before seeing what the new spkg does.
>
> real 322m12.706s
> user 303m50.211s
> sys 21m50.834s
> Successfully installed atlas-3.10.1.p3
>
> OK, it has now finished and Sage runs
On 08/19/2013 09:26 PM, Volker Braun wrote:
Different ATLAS versions have different routines so the architectural
defaults for one version don't necessarily match another version.
If you don't want top performance then you can always set
SAGE_ATLAS_ARCH=fast or SAGE_ATLAS_ARCH=base when compilin
Different ATLAS versions have different routines so the architectural
defaults for one version don't necessarily match another version.
If you don't want top performance then you can always set
SAGE_ATLAS_ARCH=fast or SAGE_ATLAS_ARCH=base when compiling Sage, this will
use some generic setting
On 8/19/13 8:18 AM, Jason Grout wrote:
The ATLAS FAQ indicates that auto-tuning is usually worse than using
architecture defaults: http://math-atlas.sourceforge.net/faq.html#ArchDef
("usually" may be an overstatement. The FAQ indicates that you should
test to see if architecture defaults are
On 8/19/13 7:18 AM, Jeroen Demeyer wrote:
I believe (but I welcome other opinions) that, if this new ATLAS is
better in other respects, the ATLAS build time doesn't really matter.
But auto-tuning surely doesn't need to be done every time on every
machine. I thought there was an easy way to s
On 08/19/2013 07:36 PM, John Cremona wrote:
What would make atlas suddenly decide to start running its tuning code
(building 5.12.beta1) on a machine which a few days ago built 5.11
without that happening? It's frustrating since even though I am using
make -j32 the tuning code is taking forever.
