#18241: Great speedup in polytopes construction with generic backend
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.7
Component: geometry | Resolution:
Keywords: | Merged in:
Authors: Vincent Delecroix | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/vdelecroix/18241 | 3c573aef7df1659213bec2614f9ba2b788c1f4fa
Dependencies: #18215 | Stopgaps:
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Comment (by vdelecroix):
Replying to [comment:12 ncohen]:
> About this branch:
>
> - `zero_set`: why don't you just call `DD.zero_set.clear_cache()`
instead of rewriting the caching mechanism? If you do want to keep this
`self.cache` please make the name more specific.
Nope. If you call the function with the same `ray` argument you do not
want to recompute it from scratch.
> - I do not like this '_matrix' function very much. Its name is not very
clear (`matrix_from_cached_vector_space`?) but what about just doing this
'if' twice (it is called twice)?
Me neither. That's why I opened #18231. The function just constructs a
matrix, why the name is badly chosen? You will get the very same answer as
calling `matrix(self.problem.base_ring(), data)`. Except that it is
faster. What about `.build_matrix` and `.build_matrix_space`?
I do not understand you remark about the `if`.
--
Ticket URL: <http://trac.sagemath.org/ticket/18241#comment:13>
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