#10042: Doctest failure in sage/rings/polynomial/polynomial_element.pyx
------------------------------+---------------------------------------------
Reporter: mpatel | Owner: mvngu
Type: defect | Status: positive_review
Priority: blocker | Milestone: sage-4.6
Component: doctest | Keywords:
Author: Dima Pasechnik | Upstream: N/A
Reviewer: Leif Leonhardy | Merged:
Work_issues: |
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Comment(by leif):
Replying to [comment:83 zimmerma]:
> > Lapack has routines for both single and double precision (names
starting with S and D, respectively)
>
> thus since the Lapack issue is with {{{dgeev}}}, it might be independent
from the GCC float
> issue. However, since the GCC issue is marked as a regression from 4.4,
somebody with an older
> version of GCC might try to recompile Lapack with it on the machines
where one got different
> absolute values.
The Sage / LAPACK results on the 32-bit Pentium4 Prescott came from GCC
4.3.3. (And I didn't get differences for my C test program there,
regardless of SSE/387 and C99.)
Also, XCode comes with even older GCCs.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10042#comment:84>
Sage <http://www.sagemath.org>
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