#11920: Sympow needs to disable fused-multiply-add and should create datafiles
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   Reporter:  jdemeyer        |          Owner:  tbd                            
             
       Type:  defect          |         Status:  needs_review                   
             
   Priority:  major           |      Milestone:  sage-4.7.3                     
             
  Component:  packages        |       Keywords:                                 
             
Work_issues:                  |       Upstream:  None of the above - read trac 
for reasoning.
   Reviewer:  Leif Leonhardy  |         Author:  Jeroen Demeyer                 
             
     Merged:                  |   Dependencies:                                 
             
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Description changed by jdemeyer:

Old description:

> See #11226 and [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48823].
>
> For sympow, we need to use the compiler option -ffp-contract=on (if the
> compiler supports it).
>
> Sympow should also create its datafiles, see #5155.
>
> '''spkg''':
> [http://boxen.math.washington.edu/home/jdemeyer/spkg/sympow-1.018.1.p10.spkg]

New description:

 See #11226 and [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48823].

 For sympow, we need to use the compiler option `-ffp-contract=on` or
 `-mno-fused-madd` (if the compiler supports it).

 Sympow should also create its datafiles, see #5155.

 '''spkg''':
 [http://boxen.math.washington.edu/home/jdemeyer/spkg/sympow-1.018.1.p10.spkg]

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11920#comment:18>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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