Sourav recently experienced this same problem on sage.math -- I
figured it was because the sage build failed, but now I'm thinking
that a bug may have been introduced when dsage was moved into a spkg.

On Fri, Jun 5, 2009 at 11:54 AM, William Stein<wst...@gmail.com> wrote:
>
> 2009/6/5 Dr David Kirkby <drkir...@gmail.com>:
>>
>>
>>
>> On Jun 5, 8:48 am, Dan Drake <dr...@kaist.edu> wrote:
>>> On Fri, Jun 5 2009 12:37 am, William Stein wrote:
>>> > Have you got an account on t2.math.washington.edu yet?  If so, it
>>> > would be *extremely* useful if you could build Sage there (I haven't
>>> > yet!), since then I could directly debug this notebook problem.
>>>
>>> Note that right now, building Sage fails on that machine with an
>>> internal compiler error -- the Fortran compiler fails. There's a partial
>>> build in /scratch/drake if you want to see an install log.
>>>
>>> Dan
>>>
>>> --
>>> ---  Dan Drake <dr...@kaist.edu>
>>> -----  KAIST Department of Mathematical Sciences
>>> -------  http://mathsci.kaist.ac.kr/~drake
>>>
>>>  signature.asc
>>> < 1KViewDownload
>>
>> Just to second that Dan's comment, when I tried to build Sage
>> sage-4.0.1.alpha0 on the T2, it failed for me too, with the Fortran
>> compiler's internal error.
>>
>> The same compiler works fine on my Blade 2000, which is a dual
>> processor box.
>>
>> I have in the past noticed some code that works fine on single
>> processor machines fails when there are more processors - Mathematica
>> has been a wonderful example of that, but I've noticed it on other
>> code too.
>>
>> My Blade 2000 has two 1200 MHz processors, but that is nowhere near 8
>> cores.
>>
>> It might be worth a quick test of disabling the other cores, then
>> trying the build that bit that uses fortran again. If William or
>> someone else with root access could do that with the 'psradm'
>>
>> http://www.uwm.edu/cgi-bin/IMT/wwwman?topic=psradm(8)&msection=
>>
>> Does anyone know what sort of machine the tools were actually built
>> on? Was it the T2 ?
>
> I think it was built on a Blade 2000 by Michael.  I just tarred up his
> directory and extracted it on T2.
>
>>
>> I can think of a few possible things which might just get this to
>> work.
>>
>> 1) Download the latest gcc and tried to build that on the T2, in the
>> hope the error might not exist in the latest one. (best option). I'll
>> do that later.
>
> That would be optimal from my point of view, since we need to port
> sage to work with gcc-4.4.0 anyways.
>
> William
>
>>
>> 2) Try to build sage with only one core enabled. That should only take
>> 5 minutes to test, but needs root access. After putting the other
>> cores offline, su - kirkby, change to the directory /home/kirkby/
>> Solairs/sage-4.0.1rc0 and type make again.  See if it builds with one
>> core. Remember to enable the other later afterwards.
>>
>> 3) I try to build the same version of the compiler, using the exact
>> same options to the configure script that Micheal used, but do it on
>> my Blade 2000. Then upload that to the T2 and try that.
>>
>> 4) I copy the relavant bit of the fortan binary of Sage built on my
>> Blade over to the T2. That might get the Sage build to complete on the
>> T2, as it build fine on my Blade 2000.
>>
>> I've never found the gcc developers too helpful on Solaris specific
>> bugs. I can imagine them being even less so on Fortran/Solairs bugs.
>>
>> Dave
>>
>>
>>
>>
>>
>>
>> >
>>
>
>
>
> --
> William Stein
> Associate Professor of Mathematics
> University of Washington
> http://wstein.org
>
> >
>

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