#715: Parents probably not reclaimed due to too much caching
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Reporter: robertwb |
Owner: somebody
Type: defect |
Status: needs_review
Priority: major |
Milestone: sage-5.4
Component: coercion |
Resolution:
Keywords: weak cache coercion Cernay2012 | Work
issues:
Report Upstream: N/A |
Reviewers: Jean-Pierre Flori, Simon King, Nils Bruin
Authors: Simon King, Jean-Pierre Flori | Merged
in:
Dependencies: #9138, #11900, #11599, to be merged with #11521 |
Stopgaps:
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Comment (by SimonKing):
Yes, it even works (i.e. reproduces the error) interactively, provided one
runs "sage -gdb"!
{{{
sage: @cached_function
....: def oddprime_factors(n):
....: l = [p for p,e in factor(n) if p != 2]
....: return len(l)
....:
sage: oddprime_factors.precompute(range(1,100), 4)
[Errno 4] Interrupted system call
Killing any remaining workers...
sage: oddprime_factors.precompute(range(1,100), 6)
[Errno 4] Interrupted system call
Killing any remaining workers...
sage: oddprime_factors.precompute(range(1,100))
[Errno 4] Interrupted system call
Killing any remaining workers...
sage: len(oddprime_factors.cache)
0
}}}
Interestingly, using `range(1,99)` (which made the problem vanish in the
doctest) does not work interactively.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:252>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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