#20484: Use the cythonized versions of has_descent, first_descent, descents for
reflection groups
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Reporter: stumpc5 | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-7.2
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by stumpc5):
And also:
{{{
sage:W = ReflectionGroup(['A',7])
sage: c = W.index_set(); Q = c + tuple(W.w0.coxeter_sorting_word(c))
sage: %prun SC = SubwordComplex(Q,W.w0,algorithm="greedy")
4605779 function calls (4605355 primitive calls) in 8.236 seconds
Ordered by: internal time
ncalls tottime percall cumtime percall filename:lineno(function)
560742 1.870 0.000 4.946 0.000
reflection_group_real.py:790(has_descent)
560742 1.363 0.000 2.774 0.000
coxeter_groups.py:717(has_right_descent)
560770 1.321 0.000 1.412 0.000
reflection_group_real.py:771(has_left_descent)
178698 0.744 0.000 5.690 0.000
coxeter_groups.py:763(first_descent)
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/20484#comment:2>
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