#12703: GLPK fails to build with LTO (`gcc -flto ...`)
------------------------------------------------------------------------+---
Reporter: leif |
Owner: leif
Type: defect |
Status: needs_review
Priority: minor |
Milestone: sage-5.0
Component: packages |
Resolution:
Keywords: link time optimization nm glpsol spkg upgrade update |
Work issues:
Report Upstream: Reported upstream. Developers acknowledge bug. |
Reviewers: Nathann Cohen
Authors: Leif Leonhardy |
Merged in:
Dependencies: |
Stopgaps:
------------------------------------------------------------------------+---
Comment (by SimonKing):
I am currently making an experiment with sage-5.0.beta8:
- Use the modified ppl package from #12672
- Use the optional cloog_ppl spkg from #12666
- Use a new libelf spkg (not posted yet)
- Modify the gcc spkg from #12369 such that it is built with graphite and
lto support
- Use the glpk spkg from here
- Build Sage (or at least the parts that come after the gcc spkg) with
`-O2 -march=native -flto`, and perhaps in another experiment also with
`-floop*`.
- Test whether -flto actually yields code that is noticeably faster in,
say, `sage -testall`.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12703#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
