#18660: Improve efficiency of minors() for BinaryMatroid, TernaryMatroid,
QuaternaryMatroid
-------------------------------------+-------------------------------------
Reporter: Rudi | Owner: Rudi
Type: task | 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/improve_efficiency_of_minors___for_binarymatroid__ternarymatroid__quaternarymatroid|
a5fd2f59b7ad6a827e358bc294f560c6ad6309a8
Dependencies: | Stopgaps:
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Changes (by Rudi):
* cc: yomcat (added)
Comment:
Before:
{{{
sage: M = Matroid(MatrixSpace(GF(3), 500,1000).random_element())
sage: timeit("M.delete([0])")
5 loops, best of 3: 333 ms per loop
}}}
After:
{{{
sage: M = Matroid(MatrixSpace(GF(3), 500,1000).random_element())
sage: timeit("M.delete([0])")
625 loops, best of 3: 655 µs per loop
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18660#comment:9>
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