#14492: Modular group cohomology, version 2.1.4
--------------------------------------+-------------------------------------
Reporter: SimonKing | Owner: tbd
Type: defect | Status: needs_work
Priority: major | Milestone: sage-5.10
Component: packages: optional | Resolution:
Keywords: group cohomology | Work issues:
Report Upstream: N/A | Reviewers: Volker Braun
Authors: SimonKing | Merged in:
Dependencies: | Stopgaps:
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Comment (by SimonKing):
Here are the remaining timings.
`OO=-O2`, `extra_compile_args=['-O2']`:
{{{
...
#267: Walltime 50:08.55 min
CPU-time 24:06.87 min
Singular 2:51.00 min
Gap-time 0:40.32 min
}}}
`OO=-O2`, `extra_compile_args=['-O1']`:
{{{
...
#267: Walltime 51:33.45 min
CPU-time 24:48.10 min
Singular 2:49.59 min
Gap-time 0:39.57 min
}}}
`OO=-O2`, `extra_compile_args=['-Os']`:
{{{
...
#267: Walltime 54:59.40 min
CPU-time 26:07.43 min
Singular 2:50.38 min
Gap-time 0:40.53 min
}}}
So, at least on my laptop, it seems like a good idea to use -O2 on
`MeatAxe` and David Green's programs, while -O3 seems best on the Cython
code.
I will now try to incorporate all your remarks and update my spkg
accordingly.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14492#comment:79>
Sage <http://www.sagemath.org>
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