#9127: BSD.py doctest failure due to timeout of Heegner index computation.
-------------------------------+--------------------------------------------
Reporter: drkirkby | Owner: cremona
Type: defect | Status: needs_work
Priority: blocker | Milestone: sage-4.4.4
Component: elliptic curves | Keywords:
Author: Robert Miller | Upstream: N/A
Reviewer: John Cremona | Merged:
Work_issues: |
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Changes (by newvalueoldvalue):
* status: needs_review => needs_work
* reviewer: => John Cremona
* author: => Robert Miller
Comment:
This one confuses me. Before I apply the patch, the file passes long
tests for me (ubuntu 64-bit, on 4.4.3). But after the patch it does not:
{{{
sage -t -long "sage/schemes/elliptic_curves/BSD.py"
**********************************************************************
File "/storage/jec/sage-4.4.3/devel/sage-
tests/sage/schemes/elliptic_curves/BSD.py", line 377:
sage: E.prove_BSD(verbosity=2) # long time
Expected:
p = 2: True by 2-descent
...
True for p not in {2, 3} by Kolyvagin.
...
ALERT: p = 3 left in Kolyvagin bound
0 <= ord_p(#Sha) <= 2
ord_p(#Sha_an) = 2
Remaining primes:
p = 3: irreducible, surjective, non-split multiplicative
(0 <= ord_p <= 2)
[3]
Got:
p = 2: True by 2-descent
True for p not in {2, 3} by Kolyvagin.
ALERT: p = 3 left in Kolyvagin bound
0 <= ord_p(#Sha) <= 2
ord_p(#Sha_an) = 2
Remaining primes:
p = 3: irreducible, surjective, non-split multiplicative
(0 <= ord_p <= 2)
[3]
**********************************************************************
}}}
So whether or not the patch fixes things on some systems, it breaks
others, so cannot be included.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9127#comment:4>
Sage <http://www.sagemath.org>
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