#17578: Use Parent/Element for Manin symbols
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Reporter: pbruin | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.5
Component: modular forms | Resolution:
Keywords: Manin symbol | Merged in:
Authors: Peter Bruin | Reviewers: Travis Scrimshaw
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/tscrim/manin_symbol_parent-17578 | 57a425901538723e212815ab1e84908ff992cf40
Dependencies: #17579 | Stopgaps:
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Comment (by tscrim):
Replying to [comment:13 was]:
> If I'm reading your test, that's not just "a slowdown...we might just
have to deal with", it's an '''epic slowdown''', by a full factor of 10.
Am I reading that right? If so, then this is definitely seriously
worrisome.
The first line is the actual creation, the second is when the caching
comes into effect. However the slowdown is by ~1.4x due to the overhead.
Thus if we want to fix the probthese without the overhead from the
category, we need an entirely different approach. Do you think you could
run a timing in a more realistic computation or post such a computation?
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Ticket URL: <http://trac.sagemath.org/ticket/17578#comment:14>
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