#18591: More efficient components() for BasisExchangeMatroid
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Reporter: Rudi | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.8
Component: matroid theory | Resolution:
Keywords: | Merged in:
Authors: Rudi Pendavingh | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/Rudi/more_efficient_components___for_basisexchangematroid|
9767c25c5c5ec12d4d600a50966ee3494a2352e7
Dependencies: | Stopgaps:
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Comment (by Rudi):
With the new routine:
{{{
sage: A =MatrixSpace(GF(2), 500, 1000).random_element()
sage: M = Matroid(A)
sage: timeit("M.components()")
625 loops, best of 3: 244 µs per loop
}}}
Forcing the use of the old routine:
{{{
sage: timeit("sage.matroids.matroid.Matroid.components(M)")
5 loops, best of 3: 52.2 ms per loop
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18591#comment:3>
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