#17865: get rid of _native_coercion_ranks_inv and _native_coercion_ranks
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.6
Component: coercion | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/vdelecroix/17685 | 1ca0e2be9cd73baba70d378e18405aa306aaad9a
Dependencies: #17862 | Stopgaps:
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Comment (by vdelecroix):
The new solution looks twice faster from Python
Old timings:
{{{
sage: cm = sage.structure.element.get_coercion_model()
sage: %timeit cm.canonical_coercion(1r,2.r)
1000000 loops, best of 3: 520 ns per loop
sage: %timeit cm.canonical_coercion(1r,complex(1r,1r))
1000000 loops, best of 3: 812 ns per loop
}}}
New timings
{{{
sage: cm = sage.structure.element.get_coercion_model()
sage: %timeit cm.canonical_coercion(1r,2.r)
1000000 loops, best of 3: 234 ns per loop
sage: %timeit cm.canonical_coercion(1r,complex(1r,1r))
1000000 loops, best of 3: 469 ns per loop
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/17865#comment:2>
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