#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):
Concerning the oddity that there is an error (but no segfault) with gdb:
It says
{{{
File "/scratch/sking/sage-5.4.beta0/devel/sage-
main/sage/misc/cachefunc.pyx", line 799, in __main__.example_17
Failed example:
oddprime_factors.precompute(range(Integer(1),Integer(100)),
Integer(4))###line 704:_sage_ >>>
oddprime_factors.precompute(range(1,100), 4)
Expected nothing
Got:
[Errno 4] Interrupted system call
Killing any remaining workers...
}}}
Why does "interrupted system call" mean? The failing function appears to
be the cached version of
{{{
def oddprime_factors(n):
l = [p for p,e in factor(n) if p != 2]
return len(l)
}}}
What system call is involved here?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:242>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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