#14099: Adding Method for testing avoidance in posets
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Reporter: chrisjamesberg | Owner: rowland
Type: enhancement | Status: new
Priority: minor | Milestone: sage-5.7
Component: combinatorics | Resolution:
Keywords: posets, days45 | Work issues:
Report Upstream: N/A | Reviewers: saliola
Authors: chrisjamesberg, rowland, ahmorales | Merged in:
Dependencies: | Stopgaps:
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Changes (by rowland):
* keywords: posets => posets, days45
Comment:
On the other hand, for larger posets using the graph search does much
better:
{{{
sage: posets = [Posets.RandomPoset(30, .5) for x in range(10)]
sage: %time len([p for p in posets if test1(p, 3, 1)])
CPU times: user 20.69 s, sys: 0.00 s, total: 20.69 s
Wall time: 20.69 s
6
sage: %time len([p for p in posets if test2(p, 3, 1)])
CPU times: user 0.19 s, sys: 0.00 s, total: 0.19 s
Wall time: 0.19 s
6
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14099#comment:10>
Sage <http://www.sagemath.org>
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