#20693: Sage crashes when computing newforms
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Reporter: ehlen | Owner:
Type: defect | Status: new
Priority: critical | Milestone: sage-7.3
Component: modular forms | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by pbruin):
Replying to [comment:9 pbruin]:
> For the slowdown, I tried the following with increasing weights:
> {{{
> sage: G = DirichletGroup(17)
> sage: %prun Newforms(G[2], 8, names='a')
> }}}
> Indeed, the method `dual_eigenvector()` takes up more and more of the
time; more precisely, most of it is spent in a number of calls to the PARI
function `eltreltoabs()`:
After #20749, `dual_eigenvector()` only takes up 28% of the time; before,
it was 69%.
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Ticket URL: <http://trac.sagemath.org/ticket/20693#comment:14>
Sage <http://www.sagemath.org>
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