#14214: Cythoned homsets
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Reporter: SimonKing | Owner: tbd
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.8
Component: performance | Resolution:
Keywords: Hom, cython, cached method | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Simon King | Merged in:
Dependencies: #14159, #12951 | Stopgaps:
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Comment (by nthiery):
Replying to [comment:2 SimonKing]:
> Some details I am not yet totally happy with (todo on a different
ticket?):
> - Getting a homset out of the cache could still be faster. The time-
limiting factor is that one needs to find an appropriate category, if it
is not explicitly passed as an argument. But since the cache is weak
anyway, couldn't we simply cache the same homset ''twice'', namely as
`Hom(X,Y)` and as `Hom(X,Y,C)`? This would give a considerable speed-up.
Yes, I don't why we should not cache Hom(X,Y). By the way, is there a
reason why Hom is not a (weak) cached function rather than handling
it's cache by hand?
Thanks for your work on this! Get in touch with me in case no one
volunteers shortly for the review.
Cheers,
Nicolas
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14214#comment:4>
Sage <http://www.sagemath.org>
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