Hi Elizabeth,

On Tue, Jul 21, 2009 at 3:22 PM, Elizabeth Yip<el...@comcast.net> wrote:
>
> Hello
>
> I  installed a customized version of Ubuntu Intrepid for my OLPC-XO
> using a 2G USB drive and tried to make SAGE for the XO on another 2G
> USB drive under Ubuntu.
>
> Previously, I've successfully installed sage-4.1 on my desktop
> machine.  I  did a du on the sage-4.1 directory, sage-4.1 uses 1958490
> blocks, which is slightly larger than my USB drive of 1921756 blocks.
> Sage-3.4 uses 1802059 blocks.  That's why I chose 3.4 instead of 4.1
> for the XO
>
> After 10 hours or more, the make failed with an error in building
> ATLAS.  Here is the part of install.log indicating the error:
> ------------------------------------------------------------------------------------------------
>   STAGE 2-2-1 : BUILDING BLOCK MATMUL TUNE
> make -f Makefile INSTALL_LOG/sMMRES pre=s 2>&1 | ./xatlas_tee
> INSTALL_LOG/sMMSEARCH.LOG
> Aborted
> make[3]: *** [build] Error 134
> make[3]: Leaving directory `/mnt/sage-3.4/spkg/build/atlas-3.8.3.p0/
> ATLAS-build'
> make[2]: *** [build] Error 2
> make[2]: Leaving directory `/mnt/sage-3.4/spkg/build/atlas-3.8.3.p0/
> ATLAS-build'
> Failed to build ATLAS.
> Failed to build ATLAS.
>
> real    255m14.016s
> user    201m35.850s
> sys     9m8.800s
> sage: An error occurred while installing atlas-3.8.3.p0

That is a known error, as reported at ticket #6276

http://trac.sagemath.org/sage_trac/ticket/6276

but in relation to Solaris.

Compiling Sage from source consumes a lot of system resources. My
guess is that the hardware of an OLPC-XO couldn't handle the job. But
I may be wrong as someone has compiled Sage 3.2.3 on a cell phone
before; see

http://groups.google.com/group/sage-devel/browse_thread/thread/243dfd4ab25a2779/3cc58c39cc9cadff

ATLAS takes hours and hours to compile because it needs to tune itself
to run efficiently for the hardware under consideration. At the
moment, ATLAS doesn't compile on all systems that we would like it to.


> I searched for 'OLPC-XO' in the Sage home page.  I understand that the
> XO can access sage through http://sagenb.org.  Since we can boot the
> XO in ubuntu, I think it would be nice to have sage compiled as well.

You can also access sagenb.org from your iPhone, or a cell phone with
Internet connection.

-- 
Regards
Minh Van Nguyen

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