#13196: GL(n, GF(q)).random_element() is way too slow for what it does
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Reporter: Bouillaguet | Owner:
joyner
Type: enhancement | Status:
positive_review
Priority: trivial | Milestone:
sage-5.2
Component: group theory | Resolution:
Keywords: matrix group, finite field, random element | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Charles Bouillaguet | Merged in:
Dependencies: | Stopgaps:
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Comment (by jlopez):
I know this is positively reviewed already, but may I suggest a small
improvement? The `MatrixSpace.random_element()` method creates a zero
matrix and then randomizes every entry by calling the `M.randomize()`
method. We can avoid recreating the zero matrix in every iteration by
calling directly the `randomize()` method. For large matrices this gives
me a 5-10% speed improvement over your current patch.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13196#comment:13>
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