#18529: Topological manifolds: basics
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Reporter: egourgoulhon | Owner: egourgoulhon
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: geometry | Resolution:
Keywords: topological | Merged in:
manifolds | Reviewers: Travis Scrimshaw
Authors: Eric Gourgoulhon | Work issues:
Report Upstream: N/A | Commit:
Branch: | 0b08b114e03c063bd2e500ac900fd843fb12673b
public/manifolds/top_manif_basics | Stopgaps:
Dependencies: #18175 |
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Comment (by egourgoulhon):
Replying to [comment:65 tscrim]:
> Status report: Still working on refactoring. I have had to go through a
few iterations, but I think I've arrived to a model which will scale
nicely with the additional manifold structures of
smooth/differentiable/(almost-)complex. I'm hoping to get it posted in a
day or two.
>
OK very good. Thank you for working on this!
> Question, do you know what are the main bottleneck operations are? I'm
wondering if there would be any benefits from doing a partial
cythonization- while I'm mucking around.
In actual calculations, the main bottleneck is the simplification of
symbolic expressions, which is performed in Lisp by Maxima. So I don't
think that cythonizing would improve much here. On the other hand,
parallelization over the components of vector fields (and more generally
tensorial objects), as performed in #18100, helps a lot.
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Ticket URL: <http://trac.sagemath.org/ticket/18529#comment:66>
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