#9894: Group cohomology spkg, version 2.1
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Reporter: SimonKing |
Owner: tbd
Type: enhancement |
Status: needs_review
Priority: major |
Milestone: sage-4.6
Component: optional packages |
Keywords: modular group cohomology solaris t2
Author: Simon King |
Upstream: N/A
Reviewer: |
Merged:
Work_issues: Is the code independent of the computer's newline character? |
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Comment(by SimonKing):
Replying to [comment:22 kcrisman]:
> > and `./sage -f` it again, and hopefully all will be well in the
morning. I have to say, five hours to install and test - that's quite an
spkg, quite the computation!
Ouch! Five hours is really much. On my desktop computer, the total time
for the tests is {{{2812.09 sec}}}, and installation takes maybe 10
minutes.
By the way, the test skript runs *all* doctests. So, it always includes
the ones marked long. Perhaps in the next version I should provide the
possibility to only run the short tests.
But what is the point of having tests that take so long? This is due to
the fact that often I was not able to find smaller examples that show the
benefit of a particular method.
How to find the doctests? Well, you had a timeout in pGroupCohomology. So,
you are in the lucky situation that the test is in a Python file, namely
(if you untar'd the package) in
{{{p_group_cohomology-2.1/src/pGroupCohomology/__init__.py}}}. You could
run {{{sage -t -verbose -long}}} on that file (that wouldn't work for the
Cython files). Using the "verbose" option would show exactly what part of
the test takes so long.
It is surprising to me that the two lists in the little {{{split}}} test
are equal. But anyway, I think {{{[t.strip() for t in
singular.eval('print(%s)'%I.name()).split(',')]}}} is cleaner than
{{{singular.eval('print(%s)'%I.name()).split(',\n')}}}
Cheers,
Simon
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9894#comment:25>
Sage <http://www.sagemath.org>
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