#10963: More functorial constructions
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner: stumpc5
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.13
Component: categories | Resolution:
Keywords: | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Simon King, Frédéric
Report Upstream: N/A | Chapoton
Branch: | Work issues:
Dependencies: #11224, #8327, | Commit:
#10193, #12895, #14516, #14722, | Stopgaps:
#13589, #14471, #15069, #15094, |
#11688, #13394 |
-------------------------------------+-------------------------------------
Comment (by jdemeyer):
It seems that this patch increases the memory usage in Sage. This used to
pass, but now fails:
{{{
$ ulimit -v 2300000; ./sage -t --long
devel/sage/sage/schemes/elliptic_curves/heegner.py
Running doctests with ID 2013-11-04-21-49-06-b972df36.
Doctesting 1 file.
sage -t --long devel/sage/sage/schemes/elliptic_curves/heegner.py
Process DocTestWorker-1:
Traceback (most recent call last):
File
"/scratch/release/merger/sage-5.13.beta3/local/lib/python/multiprocessing/process.py",
line 258, in _bootstrap
self.run()
File "/scratch/release/merger/sage-5.13.beta3/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 1802, in run
task(self.options, self.outtmpfile, msgpipe, self.result_queue)
File "/scratch/release/merger/sage-5.13.beta3/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 2113, in __call__
result_queue.put(result, False)
File
"/scratch/release/merger/sage-5.13.beta3/local/lib/python/multiprocessing/queues.py",
line 107, in put
self._start_thread()
File
"/scratch/release/merger/sage-5.13.beta3/local/lib/python/multiprocessing/queues.py",
line 191, in _start_thread
self._thread.start()
File
"/scratch/release/merger/sage-5.13.beta3/local/lib/python/threading.py",
line 743, in start
_start_new_thread(self.__bootstrap, ())
error: can't start new thread
Bad exit: 1
**********************************************************************
Tests run before process (pid=22245) failed:
sage: E = EllipticCurve('433a') ## line 13 ##
sage: P = E.heegner_point(-8,3) ## line 14 ##
sage: z = P.point_exact(201); z ## line 15 ##
(-4/3 : 1/27*a - 4/27 : 1)
[...]
sage: E.heegner_index(-8) ## line 6478 ##
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
**********************************************************************
----------------------------------------------------------------------
sage -t --long devel/sage/sage/schemes/elliptic_curves/heegner.py # Bad
exit: 1
----------------------------------------------------------------------
}}}
For me, this doesn't imply needs_work, but somebody should at least
confirm that this is normal and expected.
--
Ticket URL: <http://trac.sagemath.org/ticket/10963#comment:154>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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