#14154: Random freezes with @parallel decorator
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Reporter: mmarco | Owner: rlm
Type: PLEASE CHANGE | Status: new
Priority: minor | Milestone: sage-5.8
Component: memleak | Resolution:
Keywords: parallel | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: #14150 | Stopgaps:
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Comment (by mmarco):
I have trimmed down a little bit the code, but it is still very big.
I have tested on two different systems and the probabilities of hitting
the problem seem to vary a lot. I have also experienced the same problem
on the command line.
To trigger it i have to try several posibilities for the "exact" and
"step" parameters. A combination that seems to work more often is this:
{{{
[trenza(f,[1,I,-1,-I,1],exact=True,step=0.5) for i in range(5)]
}}}
Each separated instance of
{{{
trenza(f,[1,I,-1,-I,1],exact=True,step=0.5)
}}}
takes around 3 seconds in my computer. But the list of five iterations
doesn't give any answer even after several minutes.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14154#comment:4>
Sage <http://www.sagemath.org>
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