#13580: Parallel map reduce on SearchForest
-------------------------------------+-------------------------------------
Reporter: hivert | Owner: hivert
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: combinatorics | Resolution:
Keywords: map-reduce, | Merged in:
days57 | Reviewers:
Authors: Florent Hivert, | Work issues:
Nathann Cohen | Commit:
Report Upstream: N/A | cca788124c7eb757cceda7cb7a73f9af28149a1e
Branch: | Stopgaps:
u/hivert/13580/map_reduce |
Dependencies: |
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Comment (by hivert):
Replying to [comment:53 slabbe]:
> I get the following doctests error on top on sage-6.10 on my machine:
>
> {{{
> Expected:
> <Semaphore(value=1)>
> Got:
> <Semaphore(value=unknown)>
> }}}
Is this happening on MacOS ? I know that Semaphore are implemented
differently on this system. See in particular
[https://docs.python.org/2/library/multiprocessing.html#synchronization-
primitives the note] after class {{{multiprocessing.BoundedSemaphore}}},
where it says:
on Unix platforms like Mac OS X where sem_getvalue() is not
implemented.
If so and if the rests behave correctly, I'm tempted to replace the
doctests with
{{{
<Semaphore(value=...)>
}}}
What do you think ?
--
Ticket URL: <http://trac.sagemath.org/ticket/13580#comment:55>
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