#17663: clean sparse matrices
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Reporter: | Owner:
vdelecroix | Status: needs_review
Type: | Milestone: sage-6.5
enhancement | Resolution:
Priority: major | Merged in:
Component: | Reviewers: Martin von Gagern
linear algebra | Work issues:
Keywords: | Commit:
Authors: | b7e215dfc871214b8c74997d65422ea7467b3502
Vincent Delecroix | Stopgaps:
Report Upstream: N/A |
Branch: |
public/17663 |
Dependencies: |
#17658 |
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Changes (by vdelecroix):
* status: needs_work => needs_review
Comment:
Replying to [comment:6 jdemeyer]:
> Replying to [comment:5 vdelecroix]:
> > I think we sould get rid of Python there. Sparse graphs have a much
better implementation (though not very much documented either). But you
are right, having a customized Cython type for pair of Py_ssize_t would be
indeed much faster. Let me have a try.
> It might be better to keep that for a follow-up ticket.
Right. And thinking more, I am not so sure about the overhead as Python
int (for -5 <= i < 128) does not need allocation.
Vincent
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Ticket URL: <http://trac.sagemath.org/ticket/17663#comment:7>
Sage <http://www.sagemath.org>
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